Wholesale Ethernet VPN Product Description · 5.7 Ethernet Private LAN (EPLAN) Service 21 5.8...

VTCW020-I 07/13

Wholesale

Ethernet VPN Product Description

Wholesale EVPN Product Description 2

1 Document Control 41.1 Approvals 41.2 Author 41.3 Updates 41.4 Modification Register 41.5 Disclaimer 4

2 Introduction 52.1 Purpose 52.2 Intended Audience 52.3 Relationship with other documents 5

3 Product Overview 6

4 Features and Benefits Summary 84.1 Summary of Features 84.2 Key Benefits 10

5 Technical Description 115.1 Architecture 115.2 Principles of Operation 165.3 Geographical Service Coverage 185.4 Standardised Service Types 195.5 Ethernet Private Line (EPL) Service 195.6 Ethernet Virtual Private Line (EVPL) Service 205.7 Ethernet Private LAN (EPLAN) Service 215.8 Ethernet Virtual Private LAN (EVPLAN) Service 215.9 Access Ethernet Private Line (Access EPL) Service 225.10 Access Ethernet Virtual Private Line (Access EVPL) Service 225.11 Interfaces - Physical Layer Characteristics 235.12 Service Attributes 275.13 Service Profiles – EPL and EVPL 275.14 Service Profiles – EPLAN and EVPLAN 305.15 Service Profiles – Access EPL and Access EVPL 335.16 Class of Service (CoS) 365.17 Ethernet OAM 405.18 Access Link Resiliency 45

6 Service Fulfilment and Assurance 486.1 Ordering 486.2 Provisioning 486.3 Operations and Maintenance 506.4 Service Levels 516.5 Reporting portal 57

7 Pricing and Billing 587.1 Pricing 587.2 Billing 59

8 Acronyms 60

9 Glossary 62

Table of Contents


10 Appendix A – Layer 2 Control Protocol Handling 70

11 Appendix B – Service Attribute Descriptions 7111.1 UNI and EVC per UNI Attributes 7111.2 Ethernet Virtual Connection Service Attributes 80

12 Appendix C - NID Technical Specifications 84


1 Document Control

1.1 Approvals

Name Title Date

Steve Rieger Wholesale and Business Development Director

01 July 2013

Andrew McDonald Head of Wholesale Product Management

01 July 2013

1.2 Author

Name Title Date

Drew Barr Wholesale ProductManager 01 July 2013

1.3 UpdatesVodafone reserves the right to revise this document from time to time. The need for updates may result from implementation of advances in networking technologies; requirements for conformance with new or updated International standards; or to reflect changes in equipment design, techniques or procedures.

1.4 Modification Register

Version Modification Section Date Who

0.1 Initial Draft for comments

All 01 July 2013 Drew Barr

1.5 DisclaimerVodafone has taken reasonable care to check that the information contained in this product description is accurate at the time of publication. The latest version of this document is available from our website at http://telstraclearwholesale.co.nz/

Liability to anyone arising out of use or reliance upon any information set forth in this document is expressly disclaimed, and no representation or warranties, expressed or implied, are made with respect to the accuracy or utility of any information set forth herein.


2 Introduction

2.1 PurposeThe purpose of this document is to provide Vodafone Wholesale customers with:

• A clear description of the network architecture and technical characteristics of the six Ethernet VPN services, in sufficient detail to enable a customer to confidently select interfaces, bandwidth, service attributes and parameters suitable for their application needs.

• Details on Service Fulfilment and Assurance practices including ordering, provisioning, service level agreement (SLA) targets, reporting and fault management.

• Explanation of pricing constructs and billing

• Examples of how EVPN services can be applied in common networking scenarios

2.2 Intended AudienceThis document is aimed at product managers, technical personnel and solutions consultants of service providers, carriers, system integrators and other qualifying Wholesale customers needing to understand how EVPN connectivity services can be used standalone or in conjunction with their own network facilities to deliver Layer 2 or Layer 3 services to their end users.

2.3 Relationship with other documentsEVPN is one of our Carrier Ethernet products and part of suite of data products within the Wholesale product portfolio. Other products in the suite are covered in separate documents.

Commercial terms and conditions are recorded in the Vodafone Wholesale Services Agreement (WSA).

The Customer Operations Manual contains general service level information applicable to Vodafone’s products and services along with policies, processes and procedures for ordering, provisioning, maintenance and billing.


3 Product OverviewEVPN is a packet switched, Layer 2, digital data transport service that can be used by Wholesale customers and their end users in a variety of Wide Area Networking (WAN) data connectivity applications.

Some typical application examples include:

• customer site to customer site linking

• customer site to POP hub site linking

• providing access to the Internet

• providing access to hosted or cloud based applications e.g. hosted VoIP

• providing access to Layer 3 IP VPN’s

• server consolidation

• business continuity/disaster recovery

• distributed storage area networks

A “Carrier Ethernet” offering, EVPN is built using a set of Metro Ethernet Forum (MEF) certified network elements connected via shared bandwidth trunks that can transport a range of standardised Ethernet connectivity services that are based on the generic MEF E-Line, E-Lan and E-Access service types.

MEF Carrier Ethernet is distinguished from familiar LAN based Ethernet by five key attributes as shown in Figure 1.

Figure 1 – Carrier Ethernet Attributes (Reproduced with permission of the Metro Ethernet Forum)

With EVPN customers can interconnect standard Ethernet Local Area Network (LAN) interfaces (10/100/1000/10000 Mbit/s) within or between New Zealand cities. Both full rate and sub-rate service bandwidths are supported which on fibre based access links can scale from 1Mbit/s to 5 Gbit/s.

EVPN services can be used standalone providing end to end connectivity between Wholesale customer or end user premises or as an intermediate “wholesale input” (e.g. local loop tail circuit) used as a component that can be combined with a Wholesale customer’s own network facilities or services to provide a unique service to their end user.

Vodafone’s network design does not prescribe any particular network technology (in accordance with Carrier


Ethernet architecture principles) allowing services to be delivered over a wide range of transport technologies both in the first mile access, edge aggregation and core transport segments of our network.

Extensive use is made of Ethernet Operations, Administration and Maintenance (OAM) protocols IEEE 802.1ag and ITU-T Y.1731 in the network for service assurance of EVPN services. OAM based Service Management tools permit centralised management of network elements and facilitate pro-active monitoring of individual service instances, rapid diagnosis, isolation and resolution of faults.

EVPN services come with comprehensive Service Level Agreements (SLA’s) that include targets for service performance and availability. OAM based measurements of SLA performance parameters Frame Loss, Frame Delay, Delay Variation and Availability are carried out “in service” at regular intervals with results used to produce detailed SLA reports.

All services are tested prior to handover using industry standard RFC2544 test methodologies with results captured in a “Birth Certificate”. Customers can view service performance reports and commissioning “Birth Certificates” via an online reporting portal.

EVPN is well suited to converged networking applications where a mixture of traffic types (e.g. voice, video and data) must co-exist. Customers are able to prioritise traffic using up to four different Classes of Service (CoS). Hierarchical Quality of Service (QoS) capabilities present in the network elements permit differentiated treatment of traffic types crossing the network.

New service orders and changes to existing EVPN services are managed by a team of install co-ordinators. The IC team oversee install and provisioning activities of internal teams through to handover.

Fault support of services is provided through the customer help premium support helpdesk. The helpdesk provides a 24x7 fault logging facility and investigates and manages EVPN faults through to resolution.

The EVPN charging construct is flat rate based on service bandwidth, charge zone and CoS Profile. Billing is carried out on a monthly basis. Recurring charges apply for each service and non-recurring charges apply for new installations and moves, adds and changes to existing services.

EVPN is being launched in two phases. In phase 1 the service will be available for connecting end-points within and between eight major New Zealand cities (including Auckland, Wellington and Christchurch) on our own terrestrial fibre based access networks.

In phase 2 the coverage footprint will be expanded with support added to utilise our own copper based access networks as well as third party access networks.


4 Features and Benefits Summary

4.1 Summary of FeaturesKey features of EVPN services are summarised in Table 1.

Feature Details

MEF Service Types supported ELINE (EPL, EVPL)

ELAN (EPLAN, EVPLAN)

E-Access (Access EPL, Access EVPL)

Network Access Links Media Single Mode Fibre (Up to 10Gbit/s)

Digital Microwave Radio (up to 1Gbit/s)

Ingress Bandwidth Profile Rate enforcement per EVC and per-EVC-per-CoS as per MEF standards.

CIR traffic delivered as per the Target Performance Objectives per CoS.

EIR traffic is Discard Eligible and may not be delivered under all conditions.

The Bandwidth Profile is colour-blind at the UNI.

Service Bandwidth (EVC and OVC) Symmetrical Bandwidth

Fibre: 1Mbit/s to 5Gbit/s (32 fixed increments)

Radio: 1Mbit/s to 1Gbit/s

UNI (port) Speeds 10Mbit/s

100Mbit/s

1Gbit/s

10Gbit/s

E-NNI (port) Speeds 1Gbit/s

10Gbit/s

Service Multiplexing Supported at UNI’s and E-NNI’s to terminate multiple EVC’s/OVC’s as per MEF standards

UNI Physical Media (defaults) Ethernet 10BASE-T

Fast Ethernet 100BASE-TX

Gigabit Ethernet 1000BASE-T,1000BASE-LX

10 Gigabit Ethernet 10GBASE-LR

MAC Layer IEEE 802.3 Full Duplex

Customer MAC Address Limits 500


Feature Details

Classes of Service Real Time: Short queues and strictly enforced rates, optimised for small frame sizes and low-jitter interactive unidirectional applications, like VoIP and videoconferencing

Interactive: Medium queues with reliable delivery even if delayed. Used for selected ‘real time’ applications like SQL database queries and unidirectional streaming video

Business Critical: Small queues with low discard preference, used for key business applications like email and large file transfers

Non Critical: Deep queues with higher discard preference, used for best effort applications like web browsing

CoS Identifiers By EVC

By EVC and 802.1p (PCP)

By EVC and DSCP

Layer 2 Control Protocol Support As per MEF specifications

CE-VLAN Bundling support One-to-one (one CE-VLAN ID mapped to one EVC at the UNI).

Many-to-one (many CE-VLAN ID mapped to one EVC at the UNI).

All to One (All CE-VLAN ID mapped to one EVC at UNI for Ethernet Private services)

CE-VLAN ID Preservation Yes: Enabled by default (CE-VLAN IDs preserved UNI to UNI).

No: CE-VLAN ID Tag re-write/translation for one-to-one bundling only.

CE-VLAN CoS Preservation Layer 2 priority (802.1p) and Layer 3 priority (DSCP) always preserved.

Service OAM IEEE 802.1ag CFM is used for internal operational purposes

Customer Service OAM frames with MEG (or MD) Level = 5, 6 or 7 will be transparently passed at the UNI.

EVC / OVC MTU 1500 bytes data payload length (PDU size) within 1526 byte maximum Service Frame size (Standard for fibre access). 2000 and 9100 bytes data payload length (Jumbo – optional on fibre access).

Service Demarcation All services include Vodafone supplied Network Interface Device (NID)

Reporting Customers can view service performance reports and commissioning “Birth Certificates” via an online reporting portal

Birth Certificate All services are tested prior to handover using industry standard RFC2544 test methodologies

Geographical Service Coverage Metro areas of eight major New Zealand cities

Relevant MEF standards MEF 6.1, MEF 10.2, MEF 23.1; MEF 33

Table 1 – Key Features


4.2 Key BenefitsThe key benefits of EVPN services are as follows:

• The use of standardised services based on MEF specifications ensures maximum interoperability with vendor CPE and other service provider’s network services.

• Scalable bandwidth and granular speed increments for Ethernet and Operator Virtual Connections (EVC/OVC’s) mean you will only pay for the bandwidth you actually need. Bandwidth is able to be rapidly adjusted up or down should circumstances change.

• Service Multiplexing support permits multiple EVC’s or OVC’s to be aggregated onto a single high speed (up to 10Gbit/s) UNI or E-NNI. Delivering each service instance on a single port as opposed to multiple discrete ports allows terminal equipment to be optimised with potential cost savings due to reduced port counts, cabling, rack space and power consumption. Adding or removing instances can also be performed remotely saving costs of site attendance to perform physical jumpering.

• Multiple Classes of Service (CoS) means that you can prioritise traffic (using Layer 2 (802.1p) or Layer 3 (DSCP) mapping and/or VLAN ID) to meet your customers’ needs and offers the potential to reduce end user networking costs by merging multiple discrete networks onto a single converged network.

• Our extensive New Zealand coverage means you can quickly expand your network footprint and potential market without major capital expenditure and without the operational overhead of dealing with multiple suppliers.

• We provide a choice of access availability options to suit the importance and priority of the site (e.g. protect against potential service outages due to cable cuts by using dual diverse cable routes in the first mile to the end user premise)

• Our implementation of Connectivity Fault Management (CFM) technology enables us to pro-actively monitor your services, automatically raise trouble tickets should connectivity be impacted, and rapidly isolate and diagnose problems to facilitate fastest fault resolution. EVPN services will transparently pass Service OAM frames allowing diagnosis of end user OAM (Maintenance) Domains.

• Service turn up “Birth Certificates” issued following RFC2455 commissioning testing provides high confidence that a new service will “work first time” and demonstrate that the service has been configured correctly and meets the performance parameters specified in the Service Level Agreement.

• Comprehensive Service Performance SLA reporting enabled through SNMP based statistics collection from NID’s coupled with ongoing Ethernet OAM based in-service performance measurements allows unprecedented visibility of service status and performance.

• EVPN services support the widest range of IT applications because Ethernet is network protocol transparent and will support not just Internet Protocol (IP) but all other network layer (i.e. Layer 3) protocols e.g. Novell IPX, IBM SNA, Appletalk, DDP, OSI CLNS etc.

• With EVPN ‘Private’ services (EPL, EPLAN and Access EPL) customers can control the equipment that connects to the service and are free to assign any network addressing scheme they choose for these network devices without requiring any co-ordination with Vodafone if they wish to add to or to change the assignments as is the case with Layer 3 IP VPN’s.

• EVPN services provide end users greater flexibility in how they design and deploy IT network resources. The LAN style connectivity and scalable bandwidth of EVPN services mean users can deploy servers at multiple locations without performance loss and with improved network resiliency.


5 Technical DescriptionEVPN is a packet switched digital data transport service. Available in six different service options it is a multi-purpose connectivity solution suitable for use in a wide range of networking applications.

With EVPN “Carrier Ethernet” services, Wholesale customers are able to interconnect sites throughout New Zealand using standard Ethernet LAN interfaces. Service instances for all customers are transported securely across the common Vodafone network.

5.1 ArchitectureFigure 2 shows the general architecture of the Vodafone network. It is divided into segments that reflect the key functions performed.

Figure 2 – Network Architecture

Services start and finish in the customer premises segment which can be an end user premise, Carrier or Service Provider Points of Presence (POP) or in Vodafone Telehousing Rooms or Datacentres.

The Access network connects customer premises demarcation equipment to a port on a Layer 2 Edge Switch (i.e. first data switch) which is typically located in a Vodafone POP. There may be multiple customers attached to a single edge switch. Often referred to as the “first mile” (or “last mile”), the connecting media used may be single mode fibre optic cable or radio.

The aggregation network combines Ethernet frames collected from ingress edge switches and efficiently transports the traffic within a city (typically over distances less than 80km) for handoff to a remote egress edge switch or to the core network.


The core network takes aggregated traffic and provides long distance transport between cities (up to 1800km).

The Vodafone network is constructed from Metro Ethernet Forum certified customer premise, access edge and aggregation Ethernet switches along with a variety of other network switching nodes. Switch to switch inter-nodal linking is provided using dedicated fibre optic cables or wavelengths derived over an optical transport network constructed with fibre optic cables and photonic switches.

In the access network segment native Ethernet frame transport (IEE802.1ad encapsulation) is used.

In the aggregation and core transport network segments Ethernet frames may be carried using a variety of next generation transport layer networks (layers 0/1/2/2.5) operating with different encapsulation technologies including Synchronous Digital Hierarchy (SDH), Multi-Protocol Label Switching (MPLS), Optical Transport Network (OTN) and Dense Wave Division Multiplexing (DWDM).

5.1.1 Core Network

The core transport network provides inter-city transport with traffic carried on single mode fibre optic cables. Figure 3 shows the cable routes of Vodafone’s terrestrial fibre network which stretches from Whangarei in the north to Invercargill in the south.

Figure 3 – Core network intercity cable routes

Multi strand fibre cables with varying fibre counts link Vodafone POP’s in major cities. To support resilient transmission multiple fibre paths are available (e.g. between Auckland and Wellington there are three cable routes - one eastern via Tauranga and Napier, one western via Hamilton and Palmerston North and one terrestrial/submarine via Hamilton and New Plymouth)

Dense Wave Division Multiplexing (DWDM) technologies used in the core allow multiple discrete wavelengths (up to 88) to be derived per fibre strand. The optical transport layer of the core network is built using agile, wavelength selective switch based, reconfigurable optical add/drop multiplexers (ROADM’s) deployed in Vodafone POP’s


and interconnected by the inter-city fibres that allow per wavelength add/drop/pass through and wavelength switching.

The DWDM photonic equipment provides a unifying layer that supports the higher layer transport systems. Coherent optics used in the photonics transponders allows high speed signal transport up to 2000km on a wavelength without regeneration.

Inter-nodal trunks between core network Ethernet/SDH/OTN and MPLS transport system terminals use wavelengths derived across the optical transport network that can operate at speeds of 2.5, 10, 40 or 100Gbit/s.

In Phase 1 core transport will be provided using Next Generation Multi Service Provisioning Platform (MSPP) based terminal equipment. The MSPP terminals integrate Layer 2 Ethernet switching and Layer 1 SDH transport.

Ethernet traffic from the aggregation network enters the core MSPP node via 1G or 10G Ethernet ports on a dedicated Layer 2 Service Switch (L2SS) card in the MSPP terminal. The L2SS provides the interface between the Ethernet Network and the SDH transport and is responsible for mapping Ethernet frames using GFP into SDH containers for transport between SDH nodes. The S-VLAN tag on ingress Ethernet frames is unique per service and is used to provide service separation, service switching and service mapping in the L2SS.

Ring based protection mechanisms provide 50 millisecond restoration in the event of path interruption on an SDH transport link in the core. Traditional SDH MS-SPRing protection is used to protect ELINE based services. For protecting ELAN based services G.8032 Ring Automatic Protection Switching is used between L2SS cards.

In Phase 2, in addition to MSPP based transport, core transport will also be provided using existing core router platforms. The MPLS capabilities of the core routers will be used to provide Ethernet switching using MPLS pseudowires (aka VPLS/VPWS). Protection in the event of path interruption on an MPLS trunk link will be provided using traditional MPLS traffic engineering techniques (i.e. Fast Re-route)

5.1.2 Access Network

To deliver EVPN service at a customer site a physical connection is required that links customer edge (CE) equipment to an aggregation switching network element at the edge of the Vodafone network. Generically referred to as Provider Edge (PE) nodes these switching elements are typically located within the equipment rooms at Vodafone Points of Presence (POP’s) in selected New Zealand cities.

Attachment to the network is performed using a network access link. The access link provides the physical transport for Ethernet frame transmission in the “first mile” between the customer premise and the nearest Vodafone PE node.

Ethernet frames are transmitted as digital signals on the access link. The access link supports full duplex (bi-directional) transmission with frames sent in a serial manner (i.e. bit by bit).

The physical media used for signal transport may be guided (electromagnetic signals in optical fibre or copper cable) or unguided (electromagnetic signals in free space i.e. radio)

For the Phase 1 launch of EVPN our own terrestrial single mode fibre based access networks will be used for providing network access links (i.e. ONNET site coverage). At sites where terrestrial fibre cable is not available a digital microwave radio (DMR) based first mile access link may be used subject to feasibility.

For fibre access links the operating line speeds are either 1Gbit/s or 10Gbit/s.

Fibre and Radio access links are illustrated in Figure 4


Figure 4 – Fibre and Radio Network Access links

5.1.3 Network Interface Devices

The access link is terminated at the customer premise with a Vodafone supplied Network Interface Device (NID). The NID is an intelligent demarcation device that can be remotely managed and performs multiple functions including:

• SLA assurance and reporting

• Media conversion (e.g. optical to electrical)

• Class of Service

• Traffic management (e.g. policing and shaping)

Figure 5 below shows a typical NID

Figure 5 – Model 3916 Network Interface Device (NID)

The access link connects a network facing port on the NID to a port on an aggregation switch at the nearest Vodafone POP. Where access link resiliency is required a NID with dual network facing ports may be used. The combination of NID, access link and aggregation switch port is used to derive an Attachment Circuit needed for delivery of EVC/OVC based services. The Attachment Circuit is one of the charge components (rate elements) of EVPN services.

The NID may have one (or more) customer facing ports that can be configured as the User Network Interface (UNI) or External Network to Network Interface (ENNI) where an EVPN service is presented. The UNI/ENNI represents the boundary of the Vodafone service and forms the demarcation point between Vodafone and the customer.


Vodafone will advise the UNI/ENNI port to be used where more than one port is available.

Customer edge equipment (e.g. switch or router) must be connected to the UNI/ENNI to utilise a service. The customer is responsible for supplying, installing and maintaining any cabling necessary (e.g. Cat5 straight through patch lead) for connecting a port on their CE equipment to the UNI on the NID.

5.1.3.1 NID Models

The type of NID deployed at a site may differ depending on a variety of factors including customer bandwidth requirements, customer equipment interface requirements, site power source etc. The choice of NID is solely at Vodafone’s discretion.

Three NID models are currently used in the delivery of EVPN services. The model numbers and key characteristics are shown in Table 2 below

Model Form Factor Mounting Ports

3902 Desktop Clamshell Desktop

Wallmount

1 x 1000M SFP NNI

1 x 10/100/1000M RJ-45 UNI

3916 1 RU Wallmount

Rackmount

2 x 100M/Gigabit NNI/UNI

2 x Gigabit NNI

2 x 10/100/1000M SFP/RJ-45 UNI

3930 1 RU Wallmount

Rackmount

2 x 1/10 GbE SFP+ ports

4 x 10/100/1000M combo RJ-45 / SFP ports

4 x 100/1000M SFP ports

Table 2 – NID model summary

5.1.3.2 NID Power Arrangements

NID’s are active devices and require 230V AC mains or 24/48V DC power. The customer or end user is responsible for supplying a suitable power source and a secure environment for housing NID’s.

The NID supplied in a standard installation will by default be an AC powered single input model. Should DC or dual redundant input power options be required customers should consult their Vodafone communications consultant in advance to confirm device availability prior to submitting an order. Additional one off installation charges and extended lead times may apply where alternate NID power options are required.

Supported Power options for the three NID models are shown in Table 3.

Model Power Options Temperature Range

3902 Indoor external AC adapter 0C to +40C

3916 Front fixed AC

Dual front fixed AC

Front fixed DC

0C to +50C

3930 Front fixed single or dual redundant AC

Front fixed single or dual redundant DC

-40C to +65C


Table 3 – NID Power supply options

5.2 Principles of OperationTo use an EVPN service to connect customer equipment at two or more locations each of the premises must first be attached to the Vodafone network via an access link. The network attachment point is a port on an edge aggregation switch (referred to as a Provider Edge or PE node)

The Vodafone NID deployed at the customer premises as part of the access link presents an Ethernet User Network Interface (UNI) or External Network to Network Interface (ENNI) that is the demarcation point for the service.

End user equipment such as routers or switches at the premises (known as Customer Edge (CE) equipment) connects to the UNI / E-NNI.

An Ethernet Virtual Connection (EVC) configured within the network elements is a service container that associates by means of VLAN tags the UNI’s that are part of the service. The EVC provides security by preventing data transfer between end user sites that are not part of the same EVC. EVC’s are available in specified bandwidth increments ranging from 1Mbit/s to 5Gbit/s.

EVPN EVC’s may be point to point (enabling direct connectivity between two UNI’s only) or multipoint to multipoint (enabling any to any connectivity between all UNI’s in the EVC)

An Operator Virtual Connection (or OVC) provides the virtual connection used in Access applications that associates a UNI with an E-NNI. The E-NNI is a demarcation or peering point between the Vodafone network and the network of another network operator or service provider.

EVPN connectivity services enable data communication between endpoint devices attached to the common Carrier Ethernet transport network. Although it may appear to end users that they have a dedicated network the common transport fabric is in fact able to simultaneously carry multiple service instances of multiple customers with total isolation between individual instances.

When there is data to send between the sites, Ethernet frames at the originating CE will pass to the local UNI on the NID. An additional 802.1Q header with S-Tag is added to the Ethernet frame by the NID. The Vodafone Network will make its forwarding decisions based on this additional header. Frames are transmitted as electromagnetic signals bit by bit in a serial manner onto the access link.

The frames associated with the EVC propagate across the access link to the PE node where they are processed onto an internal network trunk for transport to their ultimate destination based on the destination address information in the Ethernet frame header.

Frames are transferred from source to destination across the Vodafone network through a series of intermediate network nodes. Network bandwidth is not dedicated to one user, but shared between multiple customers. The EVC allows customer data to travel across the network (while remaining separate and secure from other customers network traffic) between the UNI’s that are part of the service instance.

Upon reaching the PE node that the destination CE is attached to they are directed down the access link. Once the frame arrives at the NID the outer or Vodafone S-Tag is then discarded and the frame is handed off to the customer CE via the egress UNI.

The use of an S-Tag within the Vodafone network facilitates End-Users configuring and extending their CE-VLANs across the Vodafone Network without the need to coordinate with Vodafone.

Figure 6 shows an example of three EVPN service instances for three different customers being carried over the network.


Figure 6 – EVPN services example


5.3 Geographical Service CoverageEVPN will initially be available where we have deployed suitable Provider Edge switching infrastructure. Currently this is in eight cities across New Zealand as listed in Table 4 below and shown on the map in Figure 7.

Coverage Locations

Auckland

Hamilton

Tauranga

Napier

Palmerston North

Wellington

Christchurch

Dunedin

Table 4 – PE Node locations

The coverage of the service within a city may vary depending on the geographic and technical capability of Vodafone’s Network at the time at which a request for the Service is made or the Service is to be delivered.

Figure 7 – Coverage Map


5.4 Standardised Service TypesEVPN offers standardised Ethernet services that are modelled on the following generic MEF Ethernet service types.

5.4.1 Ethernet Line (or E-Line) service type

The generic E-Line service type is based on the point to point EVC. E-Line service type can be used to create Ethernet services that deliver point to point connectivity as illustrated in Figure 8

Point to Point EVC

Carrier Ethernet Network

UNI UNI

Figure 8 – E-Line service type using point to point EVC

5.4.2 Ethernet LAN (or E-LAN) service type

The generic E-LAN service type is based on the multipoint to multipoint EVC. E-LAN service type can be used to create Ethernet services that deliver “any to any” connectivity as illustrated in Figure 9

Multipoint to Multipoint EVC

Carrier Ethernet Network

UNI

UNI

UNI

UNI

Figure 9 – E-LAN service type using multipoint to multipoint EVC

5.4.3 Ethernet Access (or E-Access) service type

The generic E-Access service type is based on the point to point OVC. E-Access service type can be used to create Ethernet Access services as illustrated in Figure 10.

Figure 10 – E-Access service type using point to point OVC

5.5 Ethernet Private Line (EPL) ServiceEthernet Private Line is an EVPN service that provides connectivity between two UNI’s using a single point to point EVC. EPL is a “port based” service where each UNI port is dedicated to the EPL service and does not support


additional EVC’s.

The EPL service provides a high degree of transparency for Ethernet Data and Layer 2 Control Protocol frames passing between UNI’s with the header and payload fields at the source UNI being identical to those at the destination UNI.

Customers are free to assign their own VLAN ID numbering schemes without the need for any co-ordination with Vodafone as the “All to One Bundling” attribute at EPL UNI’s ensures all VLAN ID’s map to the one EPL EVC.

An EPL is shown in Figure 11 being used to connect customer edge (CE) router equipment at two sites A and B.

Figure 11 – EPL service linking site A to site B

5.6 Ethernet Virtual Private Line (EVPL) ServiceEthernet Virtual Private Line is an EVPN service that provides connectivity between two UNI’s using a single point to point EVC similar to the EPL service.

EVPL is a “VLAN based” service where service multiplexing is allowed at one or both UNI’s providing support for multiple additional EVC’s where EPL does not. The EVPL service also supports “bundling” enabling the mapping of more than one VLAN ID to a particular EVC.

The EVPL service can enable multipoint to point (aggregation) connectivity. “Hub and spoke” style WAN topologies can be constructed with EVPL services where a single aggregation UNI at one hub location terminates many EVC’s originating from multiple remote UNI’s.

Three EVPLs are shown in Figure 12 being used to create a WAN linking four offices in a hub and spoke topology. Each EVPL links a branch office CE router (Site A, B and C) to the Head Office hub CE router (Site D). Three EVCs are aggregated (i.e. service multiplexed) at the hub site UNI.

Figure 12 – EVPL based Hub and Spoke WAN

Ethernet Frames at a UNI are associated with EVC’s using a VLAN ID value (i.e. 1 - 4095). At a service multiplexed UNI Ethernet service frames with a specific VLAN ID (e.g. 10) or a range of different ID’s in a bundle (e.g. 10, 11 and


12) may be sent to one EVC while Ethernet service frames with different VLAN ID’s are sent to other EVC’s. With EVPL customers need to co-ordinate with Vodafone the VLAN numbering to be used for mapping VLAN ID’s to EVC’s.

5.7 Ethernet Private LAN (EPLAN) ServiceEthernet Private LAN is an EVPN service that provides “any to any” connectivity between two or more UNI’s using a single multipoint to multipoint point EVC. EPLAN is a “port based” service where each UNI port is dedicated to the EPLAN service and so does not support additional EVC’s.

The EPLAN service provides a high degree of transparency for Ethernet Data and Layer 2 Control Protocol frames passing between UNI’s with the header and payload fields at the source UNI being identical to those at the destination UNI. All to one bundling means customers are free to assign and configure their own VLAN tag numbering schemes without the need for any co-ordination with Vodafone.

If new sites (UNIs) are required to be added to an existing EPLAN service, they are connected to the same multipoint EVC thus simplifying provisioning and service activation.

An EPLAN is shown in Figure 13 being used to provide Transparent LAN interconnection of CE equipment at customer sites in four different cities.

A - B -C EVC

UNI UNI

UNIUNI

Site A Auckland

Site CWellington

Site D Christchurch

CE

CE

CE

CE

Site B Hamilton

Vodafone Carrier Ethernet Network

Figure 13 – EPLAN service providing Transparent LAN connectivity between 4 sites

5.8 Ethernet Virtual Private LAN (EVPLAN) ServiceEthernet Virtual Private LAN is an EVPN service that provides “any to any” connectivity between two or more UNI’s using a single multipoint to multipoint point EVC similar to the EPLAN service.

EVPLAN is a “VLAN based” service where service multiplexing is allowed at one or more UNI’s in the EVC providing support for additional EVC’s at the UNI’s where EPL does not. Additional EVC’s at a UNI do not need to be of the same multipoint type (i.e. subsequent EVC’s can be either point to point (EVPL service) and or multipoint to multipoint (EVPLAN service).

The EVPLAN service also supports “bundling” enabling the mapping of more than one VLAN ID to a particular EVC.

With EVPLAN customers need to co-ordinate with Vodafone the VLAN numbering to be used for mapping VLAN ID’s to EVC’s.


Two EVPLAN services are shown in Figure 14 being used in a high availability site connectivity application. The Head Office site has two UNI’s each supporting service multiplexing. The multipoint EVC connecting each remote branch appears on the two Head Office UNI’s. In the event of a failure of one of the Head Office routers the branches will still have connectivity.

Service Multiplexing


UNI

UNI

UNI

UNI

Branch Site A

Branch Site B

Head Office Site C Vodafone Carrier

Ethernet Network

Figure 14 – Dual EVPLAN services providing high availability connectivity at Head Office

5.9 Access Ethernet Private Line (Access EPL) ServiceAccess EPL is an EVPN service that interconnects a dedicated UNI and an E-NNI with a single point to point OVC. Access EPL is a port based service where each UNI port is dedicated to the service and does not support additional OVC’s.

A Wholesale Ethernet Access service, the Access EPL is suited to customers who operate their own networks and need to reach “out of franchise” customer locations via the Vodafone network. Access EPL is an enabler for carriers or service providers seeking to deliver their own Layer 2 (e.g. E-Line and E-LAN) or Layer 3 (e.g. IP VPN, Internet Access) services to their end users.

The Access EPL service provides a high degree of transparency. Ethernet service frames with multiple end user defined CE VLAN ID’s can be submitted and will be delivered unchanged at the E-NNI with the addition of an S-VLAN tag and the E-NNI Frames are delivered unchanged at the UNI except for the removal of the S-VLAN tag.

With Access EPL customers however do still need to co-ordinate with Vodafone the S-VLAN numbering for mapping to OVC’s at the E-NNI.

An Access EPL is shown in Figure 15 being used to provide the local loop segment of a Global Carriers International EPL service. The Access EPL connects the Global Carriers New Zealand end user site back to an in country New Zealand POP.

Figure 15 – Access EPL service facilitating an International EPL service

5.10 Access Ethernet Virtual Private Line (Access EVPL) ServiceAccess EVPL is an EVPN service that interconnects a UNI and an E-NNI with a single point to point OVC similar to an


Access EPL.

Access EVPL is a VLAN based service where service multiplexing is allowed at the UNI providing support for multiple service instances, including a mix of Access and EVC Services. Because multiple instances of EVCs and Access EVPLs are permitted, not all ingress frames at the UNI need be sent to the same destination.

The Access EVPL service can provide a high degree of transparency such that Ethernet service frames are delivered unchanged at the E-NNI with the addition of an S-VLAN tag and the E-NNI Frames are delivered unchanged at the UNI except for the removal of the S-VLAN tag.

With Access EVPL customers need to co-ordinate with Vodafone the S-VLAN numbering for mapping to OVC’s at the E-NNI and at the UNI.

An example of an Access EVPL is shown in Figure 16. In this scenario the Access EVPL is connecting to a Global Carriers in country Provider Edge (PE) router that is delivering a Global IP VPN service to the end user. In addition a Vodafone Internet access service using a separate EVC is being delivered to the same UNI.

Figure 16 – Access EVPL service plus EVPL based Internet service

5.11 Interfaces - Physical Layer CharacteristicsThe physical layer (or layer 1) of the OSI model is concerned with the transmission of bits onto a transmission medium and specifies the interface with the media including electrical characteristics (e.g. signal levels), mechanical characteristics (e.g. connector and cable types) modulation methods and speeds (bitrates).

With EVPN services the interface facing the CE equipment of the end user is a UNI port on the NID. For E-Access EVPN services the interface facing network operator PE equipment is an E-NNI port on a NID or Access Edge Switch.

Table 5 Summarises the standard combinations of Physical Layer Characteristics for UNI ports


Interface Signal Type

UNI Speed ModeIEEE 802.3 Std. Name

UNI Connector

MediaNominal Reach

Electrical 10Mbit/s Full Duplex 10BASE-T 8P8C Modular Jack (RJ-45)

Two pairs of twisted-pair telephone or Category 3, 4 or 5 (recommended) copper wire

100 metres

100Mbit/s Full Duplex 100BASE-TX 8P8C Modular Jack (RJ-45)

Two pairs of Category 5 Unshielded Twisted-Pair (UTP) or Shielded Twisted-Pair (STP) copper wire

100 metres

1000Mbit/s (1Gbit/s)

Full Duplex 1000BASE-T 8P8C Modular Jack (RJ-45)

Four pairs of Category 5 balanced copper cabling

100 metres

Optical 1000Mbit/s (1Gbit/s)

Full Duplex 1000BASE-LX

SFP with LC connector

long wavelength (1300-1310 nm) lasers over one pair of Single-Mode Fibre

10km (1310nm wavelength)


Full Duplex 10GBASE-LR

SFP+ with LC connector



Table 5 – UNI port physical layer characteristics

EVPN services requested with 10M, 100M or 1000M (1G) UNI port speeds will by default have an electrical copper interface presentation on the NID. For 1G UNI port speeds an optical fibre interface may optionally be supplied. The default optical interface uses single mode fibre. Alternate fibre options (e.g. Multimode or longer reach Single Mode optics) may be supported on an Individual Case Basis.

Customers requiring an optical presentation or alternate fibre options should consult their Vodafone communications consultant in advance to confirm availability prior to submitting an order. Additional one off installation charges may apply where non-default interfaces are required. For 1000M (10G) UNI port speeds only optical interface presentation is supported.

Table 6 Summarises the standard combinations of Physical Layer Characteristics for E-NNI ports


Interface Signal Type

UNI Speed ModeIEEE 802.3 Std. Name

ENNI Connector

MediaNominal Reach

Optical 1000Mbit/s (1Gbit/s)

Full Duplex

1000BASE-LX

SFP with LC connector




Full Duplex

10GBASE-LR SFP+ with LC connector



Table 6 – E-NNI port physical layer characteristics

The E-NNI ports of E-Access EVPN services are only available with port speeds of 1Gbit/s or 10Gbit/s. Alternate fibre options (e.g. Multimode or longer reach Single Mode optics) may be supported on an Individual Case Basis.

5.11.1 UNI Speeds and EVC/OVC Service Bandwidths

EVPN services are highly scalable and can be configured to operate over a wide range of different data rates or speeds. The service speed determines the amount of data that can be transferred in a given time interval. The higher the speed (aka bandwidth), the greater the volume of data that can be exchanged between sites.

The network access link physical media and transmitters and receivers used in the NID and POP aggregation switches place an upper bound on the maximum UNI speed and Service Bandwidth that can be configured for a service at a site.

EVPN UNI’s are available in four speed options when used with fibre access link media and three speed options when used with radio access link media as shown in Table 7.

Access Link Type

UNI Speed Options

10Mbit/s 100Mbit/s1000Mbit/s (1Gbit/s)


Fibre P P P P

Radio P P P O

Table 7 – UNI Speed options by Access Link Type

Different charges may apply depending on access link type and UNI Speed selected.

When ordering a service customers need to select the required service bandwidth for each EVC/OVC and also the speed of each UNI in the service.

EVPN EVC’s and OVC’s can be configured at full rate (where service bandwidth equals UNI speed) and at sub rate speeds. Bandwidths can scale from 1Mbit/s to 5Gbit/s in granular increments (32 available bandwidth steps). The UNI speed selected will determine the maximum EVC/OVC bandwidth that can be configured.

EVPN charges are proportional to the amount of service bandwidth configured. A wide choice of bandwidth steps means customers can select an amount appropriate for their application (i.e. pay only for the bandwidth they need). Bandwidth amounts can be easily increased or decreased to cater for changing requirements or budgets.

NB - Service bandwidth includes all Ethernet overheads (Inter frame gap, headers, trailers etc). Measured throughputs at higher layers may be less than the subscribed bandwidth due to the effect of these overheads.


Table 8 shows the allowed service bandwidths supported for each of the available UNI speeds.

Service Bandwidth (Mbit/s)

UNI Speed Options

Ethernet 10Mbit/s

Fast Ethernet 100Mbit/s

Gigabit Ethernet 1000Mbit/s (1Gbit/s)

10 Gigabit Ethernet 10000Mbit/s (10Gbit/s)

1 P P P P

2 P P P P

3 P P P P

4 P P P P

5 P P P P

6 P P P P

7 P P P P

8 P P P P

9 P P P P

10 P P P P

20 N/A P P P

30 N/A P P P

40 N/A P P P

50 N/A P P P

60 N/A P P P

70 N/A P P P

80 N/A P P P

90 N/A P P P

100 N/A P P P

200 N/A N/A P P

300 N/A N/A P P

400 N/A N/A P P

500 N/A N/A P P

600 N/A N/A P P

700 N/A N/A P P


Service Bandwidth (Mbit/s)

UNI Speed Options

Ethernet 10Mbit/s

Fast Ethernet 100Mbit/s

Gigabit Ethernet 1000Mbit/s (1Gbit/s)

10 Gigabit Ethernet 10000Mbit/s (10Gbit/s)

800 N/A N/A P P

900 N/A N/A P P

1000 N/A N/A P P

2000 N/A N/A N/A P

3000 N/A N/A N/A P

4000 N/A N/A N/A P

5000 N/A N/A N/A P

Table 8 – EVC/OVC Service Bandwidth Options

5.12 Service AttributesEVPN services are defined in terms of a variety of attributes in alignment with the MEF Service Definition Framework.

There are six available EVPN services. Each has a set of attributes that define the capabilities of that service. Attributes may have one or more parameter values (available options) that specify the attribute.

Details of the attributes and valid parameter values for each of the EVPN services are described in Appendix B.

5.13 Service Profiles – EPL and EVPLThe complete set of attributes and valid parameter values for a particular service is referred to as a Service Profile. The Service Profiles for each of the six EVPN services are specified in the following series of tables (Tables 9,10 and 11) in paragraphs 5.13 (EPL and EVPL); 5.14 (EPLAN and EVPLAN); and 5.15 (Access EPL and Access EVPL).

UNI Attributes EPL EVPL

UNI Identifier ETNXXXXXX

(where XXXXXX is a unique integer)

ETNXXXXXX


Physical Medium 10BASE-T; 100BASE-TX

1000BASE-T; 1000BASE-LX

10GBASE-LR

10BASE-T; 100BASE-TX


10GBASE-LR

Speed 10Mbit/s ; 100Mbit/s

1Gbit/s ; 10Gbit/s

10Mbit/s ; 100Mbit/s

1Gbit/s ; 10Gbit/s

Mode Full Duplex Full Duplex


UNI Attributes EPL EVPL

MAC Layer IEEE 802.3-2005 IEEE 802.3-2005

UNI MTU Size 1526 bytes Service Frame Length (Standard for fibre access). 2026; 9126 bytes Service Frame Length (Jumbo – optional on fibre access).

1526 bytes Service Frame length (Standard for fibre access). 2026; 9126 bytes Service Frame Length (Jumbo – optional on fibre access).

Service Multiplexing No Yes – Supported at one or more UNI’s

Bundling No Yes or No

All to One Bundling Yes No

CE-VLAN ID for untagged and priority tagged Service Frames

Not Applicable Value in range 1-4094

Maximum number of EVCs 1 ≥1

Ingress Bandwidth Profile Per UNI No No

Egress Bandwidth Profile Per UNI No No

Layer 2 Controls Protocol Processing

Tunnel Spanning Tree Protocols (STP/RSTP/MSTP)

Discard Spanning Tree Protocols (STP/RSTP/MSTP)

Discard PAUSE (802.3X) Discard PAUSE (802.3X)

Tunnel or Peer LACP/LAMP (802.1AX)

Discard LACP/LAMP (802.1AX)

Tunnel or Peer Link OAM (802.3ah) Discard Link OAM (802.3ah)

Tunnel Port Authentication (802.1X)

Discard Port Authentication (802.1X)

Tunnel E-LMI Discard E-LMI

Tunnel LLDP (802.1AB) Discard LLDP (802.1AB)

Tunnel GARP/MRP Block (802.1ak) Discard GARP/MRP Block (802.1ak)

Tunnel Cisco Discovery Protocol Discard Cisco Discovery Protocol

Tunnel Cisco VLAN Trunking Protocol

Discard Cisco VLAN Trunking Protocol

Tunnel Cisco per VLAN Spanning Tree Protocol

Discard Cisco per VLAN Spanning Tree Protocol

EVC per UNI Attributes EPL EVPL

CE-VLAN ID / EVC Map All Service Frames at the UNI map to a single Point-to-Point EVC

Mapping table agreed between customer and Vodafone per service


EVC per UNI Attributes EPL EVPL

Ingress Bandwidth Profile Per EVC Applies for SCoS Profiles.

Refer Table 15 for CIR/EIR settings

Applies for SCoS Profiles. Refer Table 15 for CIR/EIR settings

Ingress Bandwidth Profile Per CoS ID

Applies for MCoS Profiles


Applies for MCoS Profiles


Egress Bandwidth Profile Per EVC No No

Egress Bandwidth Profile Per CoS ID

No No

EVC Attributes EPL EVPL

EVC Type Point-to-Point Point-to-Point

EVC ID EPLXXXXXX


EVLXXXXXX


Maximum Number of UNIs 2 2

EVC MTU size 1526 bytes Service Frame Length (Standard for fibre access). 2026; 9126 bytes Service Frame Length (Jumbo – optional on fibre access).


CE-VLAN ID Preservation Yes Yes or No

CE-VLAN CoS Preservation Yes Yes or No

Unicast Service Frame

Delivery

Deliver Unconditionally (CIR Compliant)


Multicast Service Frame

Delivery



Broadcast Service Frame

Delivery




EVC Attributes EPL EVPL

Layer 2 Control Protocols

Processing (only applies for L2CPs passed to the EVC)


None passed to EVC (all discarded at UNI)

Tunnel LACP/LAMP (802.1AX)

Tunnel Link OAM (802.3ah)


Tunnel E-LMI

Tunnel LLDP (802.1AB)

Tunnel GARP/MRP Block (802.1ak)

Tunnel Cisco Discovery Protocol



EVC Performance CoS ID = EVC for SCoS Profiles

CoS ID = PCP or DSCP for MCoS Profiles

Refer Table 28-30 for Performance Tier performance objectives

CoS ID = EVC for SCoS Profiles


Refer Table 28-30 for Performance Tier performance objectives

Table 9 – EPL/EVPL Service Profiles

5.14 Service Profiles – EPLAN and EVPLAN

UNI Attributes EPLAN EVPLAN



ETNXXXXXX




10GBASE-LR



10GBASE-LR


1Gbit/s ; 10Gbit/s


1Gbit/s ; 10Gbit/s




UNI Attributes EPLAN EVPLAN

UNI MTU Size 1526 bytes Service Frame length (Standard for fibre access). 2026; 9126 bytes Service Frame Length (Jumbo – optional on fibre access).


Service Multiplexing No Yes – Supported at one or more UNI’s

Bundling No Yes or No

All to One Bundling Yes No


Not Applicable Value in range 1-4094

Maximum number of EVCs 1 ≥1



Layer 2 Control Protocol Processing




Discard LACP/LAMP (802.1AX) Discard LACP/LAMP (802.1AX)

Discard Link OAM (802.3ah) Discard Link OAM (802.3ah)



Discard E-LMI Discard E-LMI

Discard LLDP (802.1AB) Discard LLDP (802.1AB)


Discard Cisco Discovery Protocol Discard Cisco Discovery Protocol





EVC per UNI Attributes EPLAN EVPLAN

CE-VLAN ID / EVC Map All Service Frames at the UNI map to a single Multipoint-to-Multipoint EVC


Ingress Bandwidth Profile Per EVC Applies for SCoS Profiles.


Applies for SCoS Profiles.



EVC per UNI Attributes EPLAN EVPLAN


Applies for MCoS Profiles.




Egress Bandwidth Profile Per EVC Applies for SCoS Profiles.




Egress Bandwidth Profile Per CoS ID Applies for MCoS Profiles.




EVC Attributes EPLAN EVPLAN

EVC Type Multipoint-to-Multipoint Multipoint-to-Multipoint

EVC ID EPNXXXXXX


EVNXXXXXX


Maximum Number of UNIs ≥2 ≥2

EVC MTU size 1526 bytes Service Frame length (Standard for fibre access). 2026; 9126 bytes Service Frame Length (Jumbo – optional on fibre access).


CE-VLAN ID Preservation Yes Yes or No

CE-VLAN CoS Preservation Yes Yes or No

Unicast Service Frame

Delivery



Multicast Service Frame

Delivery




Delivery




Processing (only applies for L2CPs passed to the EVC)


None passed to EVC (all discarded at UNI)

Tunnel GARP/MRP Block (802.1ak)




EVC Attributes EPLAN EVPLAN

EVC Performance CoS ID = EVC for SCoS Profiles


Refer Table 15 & 16 for Performance Tier performance objectives

CoS ID = EVC for SCoS Profiles


Refer Table 15 & 16 for Performance Tier performance objectives

Table 10 – EPLAN/EVPLAN Service Profiles

5.15 Service Profiles – Access EPL and Access EVPL

UNI Attributes Access EPL Access EVPL



ETNXXXXXX




10GBASE-LR



10GBASE-LR


1Gbit/s ; 10Gbit/s


1Gbit/s ; 10Gbit/s



UNI MTU Size 2026; 9126 bytes Service Frame Length (Jumbo – optional on fibre access).

2026; 9126 bytes Service Frame Length (Jumbo – optional on fibre access).


Not Applicable. Value in range 1-4094

Maximum number of OVC’s 1 10

Maximum number of CE-VLAN IDs per OVC

Not Applicable 10




UNI Attributes Access EPL Access EVPL

Layer 2 Control Protocol Processing




Tunnel or Peer LACP/LMCP (802.1AX)

Discard LACP/LMCP (802.1AX)

Tunnel or Peer Link OAM (802.3ah) Discard Link OAM (802.3ah)



Tunnel E-LMI Discard E-LMI

Tunnel LLDP (802.1AB) Discard LLDP (802.1AB)


Tunnel Cisco Discovery Protocol Discard Cisco Discovery Protocol





OVC per UNI Attributes Access EPL Access EVPL

OVC Endpoint Map All Service Frames at the UNI map to a single OVC Endpoint


CoS ID for Service Frames CoS ID = OVC End Point CoS ID = OVC End Point

Ingress Bandwidth Profile Per OVC End Point

Yes.

Refer Table ?? for CIR/EIR settings

Yes.



No No

Egress Bandwidth Profile Per OVC End Point

No No

Egress Bandwidth Profile Per CoS ID

No No

OVC Attributes Access EPL Access EVPL

OVC ID APLXXXXXX


AVLXXXXXX


OVC Type Point to Point Point to Point


OVC Attributes Access EPL Access EVPL

Maximum number of UNI OVC End Points

1 1

Maximum number of ENNI OVC End Points

1 1

OVC MTU Size 2026; 9126 bytes Service Frame Length (Jumbo – optional on fibre access).

2026; 9126 bytes Service Frame Length (Jumbo – optional on fibre access).

CE VLAN ID preservation Yes Yes

CE VLAN CoS preservation Yes Yes

S VLAN ID Preservation Not Applicable Not Applicable

S VLAN CoS ID Preservation Not Applicable Not Applicable

Colour Forwarding Yes Yes

Service Level Specification Refer Table 15 for Performance Tier performance objectives

Refer Table 15 for Performance Tier performance objectives

Unicast Service Frame Delivery Deliver Unconditionally (CIR Compliant)


Multicast Service Frame Delivery Deliver Unconditionally (CIR Compliant)


Broadcast Service Frame Delivery Deliver Unconditionally (CIR Compliant)


OVC End Point per E-NNI Attributes

Access EPL Access EVPL

CoS ID for ENNI Frames CoS ID = OVC End Point CoS ID = OVC End Point

Ingress Bandwidth Profile per OVC End Point

Yes.


Yes.


Ingress Bandwidth Profile Per ENNI Class of Service Identifier

No No

Egress Bandwidth Profile per End Point

No No

Egress Bandwidth Profile per ENNI CoS ID

No No

E-NNI Attributes Access EPL Access EVPL

ENNI Identifier ETNXXXXXX (where XXXXXX is a unique integer)

ETNXXXXXX (where XXXXXX is a unique integer)


E-NNI Attributes Access EPL Access EVPL

Physical Layer 1000BASE-LX

10GBASE-LR

1000BASE-LX

10GBASE-LR

Frame Format IEEE Std 802.1ad-2005 IEEE Std 802.1ad-2005

Number of Links 1or 2 1 or 2

Protection Mechanism None or Link Aggregation None or Link Aggregation

ENNI MTU Size 9126 bytes 9126 bytes

Maximum number of OVC’s 500 500

Maximum number of OVC endpoints per OVC

1 1

Table 11 – Access EPL/Access EVPL Service Profiles

5.16 Class of Service (CoS)EVPN services can be used in converged networks where a mixture of traffic types (e.g. voice, video and data) generated from multiple customer applications co-exist simultaneously.

The traffic types that may be presented for transport across an EVPN connectivity service by customers running converged networks can have widely differing characteristics and requirements in terms of bandwidth, frame delay (latency), delay variation (jitter) and frame loss. For example voice and video both require low jitter but can tolerate higher delay. Voice however requires little bandwidth whereas video requires large amounts of bandwidth. Video is very intolerant of frame loss whereas voice can tolerate higher frame loss.

EVPN uses a shared bandwidth network (i.e. the bandwidth of individual trunks that link switching elements in the Vodafone network are of finite size and that bandwidth is shared by all customers).

In a shared bandwidth network to provide end to end quality of service (QoS) (i.e. an appropriate customer experience) to all customer applications in converged networking scenarios it is necessary to provide differentiated treatment of traffic types. QoS is achieved by trading off either delay or packet loss against bandwidth. Given a mix of traffic with differing characteristics and differing requirements, QoS mechanisms allow them all to share the available network bandwidth efficiently.

The mechanisms used to provide QoS in the Vodafone network consist of a combination of traffic classification, dedicated queues per assigned traffic class and specific queue scheduling algorithms in network elements.

5.16.1 CoS Names

EVPN has four defined traffic classes. Each class has performance characteristics that are suited to certain application traffic types. Frames ingressing the Vodafone network are classified into a specific traffic class. The CoS traffic class indicates the treatment frames will receive as they transit the network.

Each of the traffic classes is identified by a CoS Name. A CoS Name is a commitment from Vodafone to provide a particular level of performance to a set of service frames. For each CoS Name performance objectives are defined for parameters Frame Delay (FD), Inter Frame Delay Variation (IFDV), Frame Loss (FL) and Availability. The CoS Names and their performance characteristics are listed in Table 12 from “highest” to “lowest” based on network prioritization and performance.


CoS Name Performance Characteristics

Real Time Supports applications that require minimal loss, are latency-sensitive and require low latency variation (jitter), including voice and video. This class is configured for strict priority queuing allowing latency sensitive traffic to be sent first.

Interactive Supports high-priority business data applications such as financial transactions, remote access (Citrix) or storage or jitter-sensitive applications such as voice and video

Business Critical Supports most business data applications with moderate tolerance for delay and which are less sensitive to jitter.

Non Critical Supports low priority business applications with more tolerance for delay and availability such as file transfers, email and web browsing.

Table 12 – CE VLAN ID Preservation

5.16.2 Performance Tiers

A Performance Tier (PT) is a set of CoS Performance Objectives (CPO’s) specifying values for the four performance parameters (i.e. FD, IFDV, FLR, Availability) that are used in EVPN service performance SLA’s. There are currently three PT’s defined that may apply to a particular CoS Name. Different PT’s have different CPO’s.

EVPN point to point EVC’s and OVC’s are assigned a single PT. EVPN multipoint EVC’s may have more than one assigned PT depending on UNI locations.

Three different PT’s are defined because factors such as EVC or OVC distance and the speed of access circuits can greatly affect performance parameters e.g. Frame Delay is higher in longer circuits due to larger propagation delay and higher in low speed copper access due to higher serialisation delay.

How an applicable PT for an EVC or OVC with a particular CoS Name is determined will depend on the distance between UNI’s and the speed of access links used. Vodafone will determine at its sole discretion what PT will apply to a particular EVC or OVC.

Refer to section 6.4.5 for details of the performance tiers and associated parameter values for each CoS Name.

5.16.3 Single or Multiple CoS Options

EVPN EVC based services (EPL, EVPL, EPLAN, EVPLAN) can support single or multiple CoS traffic classes. There are two available CoS options with EVPN EVC based services namely Single-CoS or Multiple-CoS.

With the Single-CoS option customers can select one of the four available CoS Names to be assigned to the service i.e. Real Time, Interactive, Business Critical or Non Critical. For the chosen CoS Name all frames will be treated the same and receive the performance specified by the Performance Tier applicable for that CoS Name.

Customers do not need to signal the required CoS (i.e. mark their frames) with the single CoS option as the CoS ID is based on the EVC.

With the Multiple-CoS option customers can use any of the four available CoS classes within an EVC. When Multiple-CoS are configured customers need to signal the CoS they require by marking their frames on ingress to the network.

Marking can be performed either using the three bit CE VLAN tag PCP field of the Ethernet frame or, when the traffic being carried is Internet Protocol based, the 6 bit DSCP field in the IP packet header encapsulated in the Ethernet frame payload. The choice of PCP or DSCP marking needs to be stated at time of order placement. The network inspects the marking of frames on ingress and provides the appropriate CoS priority level treatment for the identified CoS class based on the marking.


5.16.4 CoS Profiles

When ordering EVPN services customers will select a CoS profile and an amount of Service Bandwidth. The CoS profile defines how the service bandwidth relates to the bandwidth profile parameter settings configured for each of the CoS classes that apply to the service.

Each CoS profile has a 6 character short name identifier. The identifier indicates the Cos option being used, the CoS Name for Single CoS options (SCoS) or number of CoS classes for Multiple CoS (MCoS) options and the profile number. The format of the name is as follows:

XXYYZZ

Where the characters have the meanings and values shown in Table 13

Character Meaning Values

XX CoS Option SC (Single CoS) or MC (Multiple CoS)

YY CoS Name or No. of CoS Classes

RT, IA, BC or NC for Single CoS; 02-04 for Multiple CoS

ZZ Profile Number 01 to 99

Table 13 – COS Profile Short Name Identifiers format

The CoS profile short name identifier will be shown on the invoice with the EVC or OVC identifier.

Service Bandwidth is available in 32 speed increments. The chosen bandwidth amount is configured in the network using the bandwidth profile parameters Committed Information Rate (CIR) and Excess Information Rate (EIR).

For SCoS EVC’s or OVC’s the Service Bandwidth value can equal the CIR or it may equal the sum of the CIR and EIR (i.e. the Peak Information Rate or PIR). For MCoS EVC’s the Service Bandwidth can equal the PIR with each of the individual CoS classes being assigned a percentage of the total PIR.

How the Service Bandwidth relates to the CIR and EIR parameters is indicated by the CoS profile number. Each specific arrangement for either single CoS or Multiple CoS options has a unique profile number in its short name.

There are currently 3 profile numbers defined – two for single CoS and one for multi-CoS. Additional profile numbers may be added in future. Table 14 below shows examples of profile short names, CoS options and CoS classes for the three profile numbers.

Profile Short Name CoS OptionCoS Names supported

Profile Number

SCRT01 Single CoS Real Time 01

SCIA01 Single CoS Interactive 01

SCBC01 Single CoS Business Critical 01

SCNC02 Single CoS Non Critical 02

MC0401 Multiple CoS All Four CoS Names 01

Table 14 – Current COS Profiles

For Single CoS profile number 01, the Service Bandwidth is equal to the CIR setting and the EIR is set to 0. This profile does not allow any bursting above CIR. This profile number is available with Real Time, Interactive and Business Critical CoS classes.


For Single Cos profile number 02, the Service Bandwidth is equal to the PIR. The CIR is set at 10% of the PIR and EIR set at 90% of PIR. This profile supports bursting above CIR up to PIR. Burst traffic (EIR) is accessible only when there is bandwidth available in the Vodafone network and is discard eligible. This profile number is available only with the Non Critical CoS Name.

Table 15 summarises the design rules for each SCoS profile number

Parameter SCoS Profile 01 SCoS Profile 02

CoS ID By EVC By EVC

Service Bandwidth =CIR =PIR

CIR:PIR ratio 1:1 CIR:PIR 0.1:1 CIR:PIR

EIR setting EIR = 0 EIR = PIR-CIR

CoS Names Real Time

Interactive

Business Critical

Non Critical

Table 15 – SCoS Profile design rules

For the Multi-CoS profile number 01, the Service Bandwidth is equal to the PIR. The customer can designate up to 50% of the PIR as Real Time CoS configured as CIR with the remaining percentage divided among any one or all of the three remaining CoS classes. The CoS bandwidths can be ordered in 5% increments.

This profile does not support bursting for the Real Time class but does support bursting up to PIR for the other CoS classes.

Table 16 summarises the design rules for the MCoS profile number 01

Parameter Profile 01

CoS ID By EVC and PCP or DSCP

CoS Name Real Time Interactive Business Critical Non Critical

Bandwidth Allowance Up to 50% of purchased PIR

Remaining % divided among any or all other CoS as required



Minimum % of PIR 5 0 0 0

Maximum % of PIR 50 95 95 95

% Increments 5 5 5 5

Table 16 – MCoS Profile design rules

5.16.5 PCP and DSCP mapping

With Multi-CoS options customers send Frames marked with a CoS value to indicate priority. The CoS identifier indicator options are:

By VLAN tag

• Inspect Layer 2 frame 802.1Q CE-VLAN tag – TCI field PCP bits – 8 possible values 0 – 7


By IP/DSCP

• Inspect type of service field (DSCP or IP Precedence) in Layer 3 IP packet header and map to PCP bits in Layer 2 frame

A full mapping of PCP or DSCP values at a UNI is provided to ensure that customer frames are not inadvertently discarded and to simplify configuration of customer equipment as shown in Table 17.

CoS Name802.1Q PCP marking (decimal)

IP DSCP marking (decimal)

IP Precedence

Real Time 5 40-47 Precedence 5

Interactive 4,6-7 32-39, 48-55, 56-63 Precedence 4,6-7

Business Critical 2-3 16-23, 24-31 Precedence 2-3

Non Critical 0-1 0-7, 8-15 Precedence 0-1

Table 17 – MCoS PCP/DSCP to CoS Name mappings

5.17 Ethernet OAMExtensive use is made of Ethernet OAM within the Vodafone network for Service Assurance of EVPN services. These Operations, Administration and Maintenance (OAM) protocols enable pro-active monitoring of services to be carried out and a quicker resolution of faults.

Both Link Layer OAM (IEEE 802.3ah) and Service OAM (IEEE 802.1ag/ITU Y.1731) protocols are used in the network providing the following key assurance functions:

• Fault Management (including detection, verification, localization and notification)

• Performance Monitoring (including performance parameters measurements)

5.17.1 Principles of OAM based assurance

Fault Management (FM) OAM PDU’s are exchanged at regular intervals between OAM reference points configured in ports of NID’s and aggregation switches for individual EVPN service instances. The failure to receive a set of PDU’s can indicate a connectivity failure and will result in alarms being raised in Vodafone network management systems. Proactive alarm notification along with OAM based diagnostic tools allows Vodafone fault staff to more quickly identify and resolve service impacting faults.

Performance Monitoring (PM) OAM PDU’s sent between OAM reference points of EVPN service instances enables performance parameters such as Frame Delay and Frame Delay Variation to be measured by comparing timestamp values of specific PDU data fields at transmission and reception. Alarms are raised in the event thresholds for delay or delay variation are exceeded. Performance measurement data is collected and is used in preparation of SLA performance reports available in the reporting portal.

5.17.2 Link Layer OAM (IEEE 802.3ah OAM)

Link Layer OAM is an option for EVPN services that can be enabled on the link between NID UNI port and Subscriber CE equipment UNI port.

Link OAM information is conveyed in slow protocol frames (Type/Length field value = 0x8809). Link OAM PDUs are standard length frames (64-1518 octets) and are untagged. A maximum of 10 Link OAM PDUs may be sent per one second.

Link Layer OAM is used to monitor the link between NID and CE for critical (e.g. link loss) and non-critical events (e.g. low level errors). With Link OAM enabled Vodafone operations staff can:


• Detect if error thresholds are exceeded on the link.

• Detect if connectivity is lost

NB - OAM remote loopback capability is never enabled on TCL NID’s.

Enabling Link OAM can assist in quicker fault identification and resolution. Customers ordering services must indicate if they require Link OAM to be enabled.

5.17.3 Service Layer OAM (IEEE 802.1ag and ITU Y.1731)

The Ethernet Service OAM protocols described in standards documents IEEE 802.1ag (Connectivity Fault Management) and ITU-T Y.1731 (OAM functions and mechanisms for Ethernet based networks) are used to provide “end to end” assurance of EVPN service instances (i.e. EVC/OVC’s).

Each EVPN service instance has Service OAM frame transmission and reception between NID endpoints enabled by default.

SOAM information is conveyed in Ethernet frames which are identified by a Type/Length field value of 0x8902 and may have either a destination Multicast MAC address or Unicast MAC address depending on message type.

SOAM Frames are sent in-band with live customer traffic and flow on the same EVC/OVC path. As such a small amount of bandwidth (approx. 1 – 2 kbit/s) may be consumed by the OAM traffic. For full rate services this overhead will reduce throughput slightly. For sub-rate services an allowance is made in the bandwidth profile that increases the CIR to compensate for the OAM overhead.

Devices that cannot interpret SOAM messages forward them as normal data frames.

End to end connectivity monitoring and Availability SLA performance is carried out using three CFM protocol messages:

• Continuity Check (heartbeat)

• Link Trace

• Loopback

Performance monitoring for SLA parameters FD, IFDV and FLR is carried out using Y.1731 protocol messages:

• ETH-DM (Delay Measurement) messages (DMM/DMR)

• ETH-LM (Loss Measurement) messages (LMM/LMR)

The Service OAM protocol message format is shown below in figure 17:

S Tag C Tag

DA SA TPID 0x88a8

PCP/ SVID

TPID 0x8100

PCP/ CVID

ETYPE 0x8902

Payload Data FCS

Bytes 6 6 2 2 2 2 2 46 - 1500 Bytes

4

Bytes 0 1 2 3

0 MA Lev

Ver Op Code Flags TLV Offset

4

8 12

Last End TLV

Figure 17 – SOAM Frame format


5.17.4 Maintenance Entities

OAM reference points that can generate and receive SOAM PDU’s and track responses are referred to as MEG End Points (MEP’s).

A Maintenance Entity (ME) is an OAM component that identifies an OAM flow. An ME is defined as an association between two MEP’s each located at a boundary of an OAM domain (or the boundaries of two adjacent OAM domains). An ME provides connection monitoring.

A ME Group (MEG) consists of the MEs that belong to the same service instance (i.e. EVC/OVC) within an OAM Domain. A MEG identifies all MEP’s in a service instance.

Figure 18 shows a MEG and its component ME’s that have been provisioned to monitor an EVPN EPLAN service.

UNI A

UNI CME 3

ME 1

ME 2

UNI B

1

2

3

UNI

MEP

ME

Key

Figure 18 – MEG for 3 site EVPN EPLAN service consisting of three ME’s

EVPN E-LAN type services being based on Multipoint- to-Multipoint EVC’s can have MEG’s with one or more ME’s depending on the number of UNI’s in the service. For a Multipoint-to-Multipoint EVC of n UNIs, a MEG contains n*(n-1)/2 MEs.

EVPN E-Line or E-Access type services that are based on point to point EVC or OVC will always have a MEG that contains a single ME.

OAM reference points that are capable of reacting to diagnostic OAM frames initiated by MEPs are referred to as MEG Intermediate Points (MIP’s). A MIP does not initiate proactive or diagnostic OAM frames. MIP’s can add, check and respond to information in received OAM PDU’s, thereby supporting path discovery among MEP’s and location of faults along paths.

5.17.5 Service OAM Domains

The Vodafone network elements used to provide EVPN services support hierarchical Service OAM domains enabling Subscribers (i.e. customers) to manage their own OAM domains (if required) through an EVPN service.

Providing an EVPN service between remote locations for a Subscriber will usually require the establishment of connections through equipment that is owned and controlled by one or more separate administrative entities. These entities may be acting in different roles depending on the business relationships that exist between them.

For example Vodafone could supply an Access EPL service instance to a Service Provider who uses the connectivity and connectivity across its own network to provide an EPL service instance to a Subscriber who extends the connectivity to devices in the Subscriber’s own networks at each end point. In this scenario Vodafone is acting in a Network Operator role, the Service Provider in both a Network Operator and Service Provider role and the end user in a Subscriber role.

To monitor this end to end connectivity using SOAM, through the equipment used by the different administrative entities, portions of the network under the control of each administrative entity are identified by an OAM Domain.

Service OAM standards support eight OAM Domain levels (numbered 0 to 7) to identify the position of one domain


in a hierarchy relative to another. Where multiple administrative entities share a domain space a mutually agreed domain level number (aka MEG Level) that is encoded in 3 bits of the OAM PDU is used to distinguish which domain of the hierarchy an OAM flow is part of.

With hierarchical OAM Domains it is a requirement that any lower level domain is always totally enclosed by (i.e. nested within) any higher level domain.

Service OAM frames belonging to an OAM Domain originate and terminate within that OAM Domain. Service OAM frames from outside an OAM Domain are discarded (when they belong to another domain at the same or lower level) or transparently passed across a domain (when they belong to another higher-level OAM Domain)

Figure 19 illustrates a possible domain hierarchy. In this example entity acting in Service Provider role is providing an EPL connectivity service to a Subscriber. The Service Provider is also a Network Operator with its own network and is using the Vodafone network to reach one of the Subscriber sites via an EVPN Access EPL service.

As shown the Subscriber OAM Domain completely overlaps the Service Providers’ OAM Domain. The Service Providers domain remains transparent to any Subscriber domain OAM PDU’s passing between the Subscriber networks at each end. Similarly the Service Provider OAM Domain also completely overlaps both Network Operators’ OAM Domains such that Network Operators OAM Domains remain transparent to Service Provider’s OAM Domain.

E-NNI

Other Operator Network

Subscribe Network

Subscribe Network

Operator Domain - Other

Service Provider Domain

Subscriber Domain

Operator Domain - Vodafone

Vodafone Network

MEP Ethernet Link Ethernet Switches

MIP EVC

Legend

Figure 19 – OAM Domains

Domains on the same level can touch but not intersect each other.

5.17.6 Domain Hierarchy

Vodafone’s preference when customers wish to share a common domain space with Vodafone is that both parties agree to implement the OAM Domains and Maintenance Entities defined by the MEF and described in MEF Technical Specifications (MEF 30 - Service OAM Fault management Implementation Agreement and MEF 35 - Service OAM Performance Monitoring Implementation Agreement)

Figure 20 shows the MEF hierarchy of domains. Also shown are pairs of MEP’s (i.e. ME’s) that could be communicating across each domain.


Subsciber CE

Subsciber CE

Service Provider/ Operator Other NE’s Operator Vodafone NE’s

Service Provider Other Domain

Subsciber CE

Operator Other ME

Operator Vodafone ME

EVC ME

Test ME

Service Provider ME

2

3

4

22

3

4

2

E-NNI MEUNI ME UNI ME1

5 5

6 66 6

2 22 2

3 3

1 11 1 1

1 53 72 64 8 9

MEP (Up direction) MIP

MEP (Down direction) Logical path of SOAM PDU’s

Figure 20 – MEF OAM Domain Hierarchy

The suggested usages of the MEG/ME’s provisioned in each MEF domain are shown in Table 18.

MEG/ME name MEG Level Suggested Use

Subscriber 6 Subscriber monitoring of an Ethernet service

Test 5 Service Provider isolation of subscriber reported problems

EVC 4 Service Provider monitoring of provided service

Service Provider 3 Service Provider Monitoring of Service Provider network

Operator 2 Network Operator monitoring of the portion of a network

UNI 1 Service Provider monitoring of a UNI

E-NNI 1 Network Operators’ monitoring of an ENNI

Table 18 – Suggested MEG’s, MEG Levels and usages

5.17.7 Vodafone SOAM Implementation

Vodafone provisions SOAM only on EVC’s and OVC’s. SOAM can however be configured if required on External Interfaces (UNI and E-NNI) on request by customers.

The default MEG names and levels provisioned for EVPN service types are shown in Table 19.


EVPN Service MEG Name MEG Level

EPL EVC MEG 4

EVPL EVC MEG 4

EPLAN EVC MEG 4

EVPLAN EVC MEG 4

Access EPL Operator MEG 2

Access EVPL Operator MEG 2

Table 19 – EVPN default SOAM configuration

Customers may request MIP’s may be provisioned on ports of network elements at the edges of the Vodafone network at the EVC MEG and Subscriber MEG Levels if required to allow Subscribers and Service Providers to determine if a connectivity problem exists in the Vodafone network.

On EVPN EVC’s that have a Multi CoS profile the CoS for CCM frames will be configured to be the CoS Name with the highest priority.

The performance measurements for Frame Delay, Inter-Frame Delay Variation and Frame Loss will be performed between a pair of MEP’s. For multipoint to multipoint EVC’s (EPLAN and EVPLAN) measurement will be limited to one pair of MEP’s in the MA. The customer must select which pair of UNI’s will be configured for measurement.

5.18 Access Link ResiliencyThe access link provides the physical transport for Ethernet frame transmission in the “first mile” between the NID demarcation device at the customer premise and the nearest Vodafone PE node.

5.18.1 Non-Resilient Access

The default access delivery for EVPN services is non-resilient as illustrated in Figure 21.

NID

UNI I-NNI I-NNI

CE

PE

Customer Premises Vodafone POP

Edge Aggregation SwitchMulti-fibreCable Sheath

SM fibre

Figure 21 – Non-resilient access link

Connectivity from the Vodafone PE node to the NID is via single mode fibre cable. A single bi-directional circuit path is provided on a single fibre (or two fibres with separate transmit (TX) and receive (RX) paths) that connects I-NNI ports on the NID and on the PE node. The fibre(s) are carried within a common multi fibre cable sheath. The end to end fibre path may consist of a number of separate cable sheath segments with the fibre(s) jointed at intermediate points. The lead in cable sheath to the customer premise and Vodafone POP is via a single building entry.

The standard access does not provide any protection against failure of the fibre path (e.g. fibre cut by external party) or failure of the network elements at each end of the access link.

For customers that have high availability requirements at a site, options may be available (subject to feasibility) that can provide additional resilience in the access network.


5.18.2 Resilient Access – Option A

With Option A resilience connectivity from PE node to NID uses dual bi-directional circuit paths on two fibres (or four fibres with separate TX and RX each path) as shown in Figure 22. Fibres are carried in the same cable sheath with a single building entry each end. Two ports are consumed on the PE node and NID.

NIDCE PE

Customer Premises Vodafone POP

Working

Protection

Figure 22 – Option A resilience

Option A provides automatic protection using Link Aggregation technology in a 1+1 arrangement. One circuit path is designated as the working link that carries all customer Ethernet frames under normal conditions (i.e. no-failure). The second path is designated as the protection link which does not carry any customer frames under normal conditions.

The link currently carrying traffic is referred to as the active link and the link currently not carrying traffic the standby link. Should the working link experience failure traffic will automatically switch to the protection link and the protection link becomes the active link. Upon restoration of the working link it is held in standby mode.

Option A resilience has no separation between circuit paths and can protect against failure of one fibre path or one equipment port failure.

5.18.3 Resilient Access – Option B

Option B resilience uses LAG 1+1 protection with dual routing of circuit paths as shown in Figure 23. There is diversity over part of the circuit path but without full separation between PE and NID. A single building entry (single duct) is used at each end and two ports consumed on the NID and PE. Working and protection are on different paths.

NIDCE PE

Customer Premises Vodafone POPWorking

Protection

Figure 23 – Option B resilience

Option B resilience is dual routed with partial separation between circuit paths and can protect against fibre failure of one fibre path or cable failure where there is cable separation or one equipment port failure.

5.18.4 Resilient Access – Option C

Option C resilience also uses LAG 1+1 protection with dual routing of circuit paths with full separation as shown in Figure 24. There is separation over the entire circuit path provided with dual cables and two building entries (separate ducts) at each end. Working and protection are on different paths.

Option C resilience is dual routed with separation between circuit paths and can protect against fibre failure of one fibre path or cable failure or one equipment port failure.


NIDCE PE

Customer Premises Vodafone POPWorking

Protection

Figure 24 – Option C resilience


6 Service Fulfilment and Assurance

6.1 Ordering

6.1.1 Eligibility

To be eligible to purchase Vodafone EVPN services a new Wholesale customer must have signed a Wholesale Services Agreement (WSA) and have an account opened with Vodafone Wholesale. The criteria used to determine customer eligibility are as follows:

• Must be a Telecommunications Network Operator; and/or

• Must on-sell services received from Vodafone Wholesale to its own customers under its own brand; and/or

• Must be selling services in direct competition to the Vodafone Retail Business Units; and

• Must perform all its own sales, marketing, customer service and billing functions

EVPN services are offered under the terms of the WSA and the associated EVPN Service Description

6.1.2 Pre Sales Support

Vodafone Client Liaison and Communications Consultants are available to provide pre-sales support for customers.

Client liaison staff can assist customers with feasibility checks to determine if sites where customers would like services delivered are reachable on the Vodafone network via intact facilities or whether network augmentation or extension is required to access a site. Formal feasibility studies and quotations are available on request. All quotations include a unique reference number that can be used in any subsequent orders.

6.1.3 Submitting Orders

EVPN services are ordered using the Vodafone all in one order form. An order guide is available on request to assist customers in completing the form for specific EVPN service types.

Orders types fall into three categories:

• New Connections

• Moves, Adds and Changes

• Cancellations (Relinquishment)

The provisioning lead time for an order may vary depending on the nature of the work involved (i.e. whether intact network facilities are in place at all sites or if new facilities are needed to be constructed at some locations). Typical SLA timeframes are given in section 6.4.3.

A Fast-Track Delivery option may be available if earlier delivery is required (additional charges apply)

An acknowledgement confirming receipt of an order, and an estimated completion date and Order reference number are provided for all orders. The order number should be used when requesting any order progress updates.

6.2 Provisioning

6.2.1 Install Co-ordination

Once an order has been placed and accepted, an Install Co-ordination (IC) team member will be assigned who will confirm delivery dates and oversee install and provisioning activities of internal teams through to handover.

An install typically has four stages

• Audit - In this stage delivery methods, capacity checks and approvals are carried out


• Design - In this stage design and building of any required physical infrastructure is carried out and records systems are updated

• Activation – In this stage an order is prepared for cutover which includes bearer stand-up, port configuration and logical connections in network elements

• Cutover – In this stage services are turned up providing end to end connectivity

The IC will notify customers on order completion and provide fulfilment information such as circuit identifiers for the services.

6.2.2 Access Link Installation

Where a new access link is required to deliver a service a Vodafone Installation Manager or Field Service contractor will contact the customers nominated site contact to arrange on site access to the end customer site and to clarify technical details regarding the service delivery.

For fibre based network access links Vodafone will deliver fibre to the customer premise and extend the fibre to the nominated delivery location. The fibre will be terminated on a Vodafone supplied NID. (Should we be charging extra for long run internal cabling?)

6.2.3 Service Commissioning Tests

Prior to handover each Vodafone service will have commissioning tests performed that will be recorded in a service “birth certificate” that will be made available to customers via a web portal.

The RFC 2544 standard (established by the Internet Engineering Task Force (IETF)), is the primary test methodology that is used in commissioning. RFC2544 testing is performed using the generator and reflector capabilities of NID’s as shown in Figure 25.

NID

CE

CE

NID

Generator

Reflector

Figure 25 – RFC 2544 testing using NID’s

RFC2544 benchmarking evaluates performance of services using throughput, burst, frame loss and latency tests as outlined in Table 20. Individual tests validate a specific part of the SLA for the service being tested.

Test Description

Throughput The throughput test identifies the maximum number of frames per second that can be transmitted without any error. This test measures the rate-limiting capability of network elements

Burst The burst test assesses the buffering capability of network elements. It measures the maximum number of frames received at full line rate before a frame is lost. It validates the excess information rate (EIR) SLA parameter.

Frame Loss The frame loss test measures the network’s response in overload conditions

to simulate network performance in real-time applications

Latency The latency test measures the time required for a frame to travel from the originating device through the network to the destination device and back to the originating device.


Table 20 – RFC 2544 tests

The testing is performed point to point between two NID’s. For ELAN multipoint services test are performed from each site to one other site.

6.2.4 Install Warranty

An install warranty period of 1 week is provided following new circuit handover. Customers can contact the IC if any problems are experienced with the new service during this period. The IC will arrange provisioning teams to resolve any issues.

Outside the warranty period any problems must be reported as a fault to the Customer Help Premium Support team.

6.3 Operations and Maintenance

6.3.1 Faults

The Vodafone Customer Help Premium Support helpdesk is the primary point of contact for fault reporting. Through the helpdesk, Vodafone provides a 24x7 fault logging facility. The helpdesk will investigate and manage faults through to resolution, update customers on progress with fault resolution and escalate any unresolved faults to an appropriate manager.

Customers experiencing faults on EVPN services should investigate and perform initial diagnosis to ensure the trouble is not within their own network or equipment before logging a fault with Vodafone.

The following information should be to hand when reporting faults:

• Vodafone Account Number

• Contact details for advice of progress/resolution

• Full description of fault and impact to user

• Arrangements for site access if required

• Vodafone circuit ID (if available)

Faults are prioritised by the helpdesk and are actioned according to their priority. Table 21 describes the criteria for classification for each level.

Fault Prioritisation Level

Description

Critical Impact (P1) A service affecting incident for which there is no alternative solution e.g. complete failure of a circuit that has caused a customer site isolation or severe degraded performance.

Major Impact (P2) A service affecting incident caused by degraded performance of the leased line e.g. errors or intermittent short outages. Or A failure of a circuit where the customer has some form of resilience, which enables normal business operations to continue while the Supplier restores service to the failed lease line.

Minor Impact (P3) Incidents that have no noticeable impact on the customers’ business e.g. errors on the leased line well within normal performance parameters. Typically raised as an attempt to prevent a critical or major Incident.

Table 21 – Fault Prioritisation Criteria


A trouble ticket reference will be provided by Customer Help which can be used in any further interactions and for obtaining trouble ticket status updates

Charges may apply for unnecessary site visits by service personnel to attend a fault when there is no fault found in the Vodafone network.

6.3.2 Planned Outages

Where Vodafone needs to carry out any planned maintenance on its network which may affect an EVPN service Vodafone will endeavour to give the customer a minimum of 10 business day’s notice prior to any service impacting planned outage or a minimum of 3 business day’s notice prior to any Non-service impacting planned maintenance.

6.3.3 Un-planned Outages

In the event of a major unplanned service interruption to EVPN services Vodafone will endeavour to provide customers with a written report (Reason For Outage (RFO) within 10 Business days of the event, outlining:

• Fault timeline

• Incident summary

• Resolution

• Preventive/Corrective action

• Root Cause

6.4 Service LevelsThis section contains Service Level definitions and associated Service Level Targets for the following Service Level Categories:

• Customer Notification Communications

• Service Delivery

• Fault Management

• Service Performance

6.4.1 General Definitions

Business Day - means a day on which registered banks are open for business in Auckland, Wellington and Christchurch other than a Saturday or a Sunday.

Standard Business Hours - means 9.00am to 5.00pm on a Business Day.

Standard Installation - means an install of an Attachment Circuit where facilities to provision the circuit are largely intact and no significant build activity is required.

Non Standard Installation – means an install of an Attachment Circuit where facilities to provision the circuit are not intact and significant build activity is required.

Simple MAC – A move, add or change (MAC) requiring logical changes only to circuit configuration and/or records. These changes can be performed remotely without need for truck roll /technician dispatch.

Standard MAC – A MAC where a truck roll/technician dispatch is required with onsite implementation that can be completed in standard timeframe.

Complex MAC – A MAC where a truck roll/technician dispatch is required with onsite implementation that is complex or cannot be completed within standard timescales or requires network construction activity.


6.4.2 Customer Notification Communication Timeframes

Attribute

Definition

Service Level Target - Communication method

Order Acknowledgement Acknowledged receipt of a completed service application

1 Business Day from receipt – Email

Order Acceptance Confirm that we can deliver the service and advise the Delivery Commitment Date (DCD)

2 Business Days from order acknowledgement - Email

Site Visit Appointment Confirmation When building access is required, confirm phone discussions that we have scheduled a site visit appointment

Within one Business Day of the phone call that set the

site visit appointment – Email 1

Site Visit Appointment Reschedule If a site visit is rescheduled, confirm phone discussions advising of new appointment

Within one Business Day of the phone call to reschedule the site visit appointment – Email.

Progress Reports For all service applications, we will send an activation status report

Weekly or as agreed with the customer - Email

Order Completion Confirmation order is completed and service is ready for testing

Within one Business Day of network activation - Email

1 Refers to both the technical and site contacts.

Table 22 – Customer Notification Communication Timeframes

6.4.3 Service Delivery Timeframes

Attribute

DefinitionService Level Target Lead Time (ONNET)

New Installation (Category 4) Assumes existing site with existing intact fibre cabling (customer premise to Vodafone POP) and network equipment available to provide service (i.e. Standard Installation).

17 Business Days

New Installation (Category 2) Assumes outside plant construction work required (e.g. trenching, hauling, splicing) to access site (i.e. Non Standard Installation).

34 Business Days

Network Extension (Category 1) For sites requiring network extension to reach the customer premise.

45 Business Days – reliant on building owner and council consents.


Attribute

DefinitionService Level Target Lead Time (ONNET)

Moves/Adds/Changes Remote configuration - No site visit required (Simple MAC)

3 Business Days

Moves/Adds/Changes Work requiring a site visit (Standard MAC)

10 Business Days

Moves/Adds/Changes Complex work requiring a site visit (Complex MAC )

As agreed.

Cancellation 1(Relinquishment) Removal of any associated site equipment , jumpers and deactivation of circuit path

10 Business Days

External Relocation Relocation of UNI/ENNI from one site to another site

As per new installation

Internal Relocation Relocation of UNI/ENNI within a site

10 Business Days

1 This is the service level for the physical cancellation. Contracted terms are not affected by this

Table 23 – Service Delivery Timeframes from Order acceptance

6.4.4 Fault Management

Fault logging, response, status notifications and Incident Reporting Timeframes

Attribute

DefinitionService Target

Fault Reporting Telephone contact with Customer Help Premium Support

Faults can be reported 365 days per year and 24 hours per day

Trouble ticket status updates Telephone contact with Customer Help Premium Support

Status updates can be requested 365 days per year and 24 hours per day

Helpdesk Response Advice Initial notification to advise the issue’s progress and the latest expectation of a resolution timeframe

Target within 0.5 hours of the issue being logged, unless Vodafone Wholesale has agreed otherwise with the Customer

Helpdesk Follow Up Advice An updated notification of the latest progress of the issue and expected resolution timeframe

P1 Faults - Every 1 hours

P2 Faults – Every 2 hours

P3 Faults – Every 8 hours, or - as otherwise agreed with the Customer, or in the event of changed circumstances

Helpdesk Resolution Advice Advise the issue has been resolved

As soon as practical and with consideration to the customer’ requirements


Attribute

DefinitionService Target

Post Incident Reporting After the incident, Vodafone Wholesale can provide a report with details of a particular fault on the service

Reason for Outage (RFO) reports provided on request

Vodafone Wholesale reserves the right to charge customers for costs in the event that we are called to a Customer’s site for a fault call that is subsequently proven to be in the Customer’s equipment or third party equipment used by the Customer. This also applies to faults caused by negligent use or misuse by the Customer, its employees, agents, suppliers, customers or other third parties.

Table 24 – Fault Management Communication Timeframes

Fault Restoration Site Visits - Site Location Categories

Site Classification Definition

Metro Sites Sites that are within 65km of the central business districts of Auckland, Hamilton, Wellington, Christchurch and Dunedin.

Regional Sites Sites that are within 30km of the central business district of Whangarei, Rotorua, New Plymouth, Napier/Hastings, Palmerston North, Nelson, Greymouth and Invercargill.

Other NZ Sites Sites outside of Metro and Regional Sites.

Table 25 – Site Location Classification

Fault Restoration Timeframes

Fault PriorityONNET Equipment fault

Category Elapsed Time

P1 Critical No Site Visit 4 Hours

P1 Critical Site Visit- Metro 6 Hours

P1 Critical Site Visit -Regional 6 hours

P1 Critical Site Visit- Other NZ 8 hours

P2 Major No Site Visit 8 hours

P2 Major Site Visit- Metro 10 hours

P2 Major Site Visit -Regional 10 hours

P2 Major Site Visit- Other NZ 12 hours

P3 Minor Minor Fault 5 days

Table 26 – Fault Restoration Timeframes

NB – SLA targets in the above table are for service interruptions due to equipment failure.


Individual resolution times will be increased where the resolution is delayed due to external factors including:

a. Periods of time during which the end user is not able to assist Vodafone in providing data or technical specifications, or building access (provided such information and/or access requests are reasonable and requested in a timely manner);

b. Malfunction due to hardware or services not provided by Vodafone (directly or indirectly via Subcontractors or otherwise);

c. Incidents caused by the end user, which directly and solely caused delay;

d. General power cuts at the end users Site;

e. Planned network maintenance agreed by the parties, which is carried out entirely within the window agreed by the parties; or

f. A Force Majeure Event;

Where a Service interruption is the result of a fibre optic cable cut by a third party the cable repair time target is 9 hours.

6.4.5 Service Performance

Performance Objective Parameter Definitions

Parameter Definition

Availability A measure of the percentage of time that a service is useable.

Frame Delay The time required to transmit a Service or ENNI Frame from ingress External Interface (EI) to egress External Interface (EI).

Inter Frame Delay Variation

The difference in delay of two Service or ENNI Frames of the same CoS Frame Set.

Frame Loss Ratio Frame Loss Ratio is a measure of the number of lost Service Frames or ENNI Frames between the ingress External Interface (EI) and the egress External Interface (EI). Frame Loss Ratio is expressed as a percentage.

Service Frame An Ethernet frame transmitted across the UNI toward Vodafone or an Ethernet frame transmitted across the UNI toward the Subscriber.

ENNI Frame The first bit of the Destination Address to the last bit of the Frame Check Sequence of the Ethernet Frame transmitted across the ENNI.

External Interface Either a UNI or an ENNI.

CoS Frame Set A set of Service or ENNI Frames that have a commitment from Vodafone subject to a particular set of performance objectives.

CoS Name A designation given to one or more sets of performance objectives and associated parameters by Vodafone.

Cos Performance Objective

An objective for a given performance metric.

Table 27 – Performance Parameter Definitions

Performance Tiers

A Performance Tier consists of a complete set of SLA CoS performance objectives (CPO’s) for all four performance


parameters (i.e. Frame Delay (FD), Inter Frame Delay Variation (IFDV), Frame Loss Ratio (FLR) and Availability) of each CoS Name. There are four Cos Names defined namely Real Time, Interactive, Business Critical and Non Critical.

Three Performance Tiers, each with different objective targets are defined. Each EVC or OVC is assigned a Performance Tier by Vodafone based on distance and access type.

The Performance Tiers and their performance objectives are shown in the following tables:

PT Metro

Performance Metric

CoS Names

Real Time InteractiveBusiness Critical

Non Critical

Parameter Values

Frame Delay ≤6mSec ≤8mSec ≤12mSec ≤22mSec

Inter Frame Delay Variation ≤3mSec ≤4mSec ≤5mSec Not Specified

Frame Loss Ratio ≤0.01% ≤0.01% ≤0.01% ≤0.1%

Performance Metric Parameter Value

Availability 99.9%

Table 28 – Performance Tier Metro CoS Performance Objective

PT Regional

Performance Metric

Cos Names


Non Critical

Parameter Values



Frame Loss Ratio ≤0.01% ≤0.01% ≤0.01% ≤0.1%


Availability 99.9%

Table 29 – Performance Tier Regional CoS Performance Objective


PT National

Performance Metric

Cos Names


Non Critical

Parameter Values



Frame Loss Ratio ≤0.01% ≤0.01% ≤0.01% ≤0.1%


Availability 99.9%

Table 30 – Performance Tier National CoS Performance Objective

Reporting - Vodafone will begin reporting service performance from the beginning of the month after a service is implemented.

6.5 Reporting portalVodafone will set up each customer with a username and password for login to the secure Vodafone Wholesale reporting portal. Through this portal resellers can access SLA performance reporting and birth certificate information.

(Additional details TBA)


7 Pricing and Billing

7.1 PricingThe rate elements associated with EVPN services are as follows:

• Installation Charges

• Attachment Circuit Charges

• EVC/OVC Service Bandwidth Charges

• Moves, Adds and Changes Charges

• Miscellaneous Charges

• Early Termination Charges

• Additional Works Charges

A minimum one year term applies to EVPN services. All charges are in New Zealand Dollars and exclude GST.

Non-recurring and recurring charges may be eligible for fixed term discounts.

7.1.1 Monthly Recurring Charges (MRC)

Attachment Circuits and EVC/OVC’s incur MRC charges. These charges are payable for each whole month, or as a pro-rata charge for each part of a month thereof that each is supplied (commencing on the start Date). Charges are invoiced in advance.

Attachment Circuit pricing takes into account UNI/E-NNI line speeds, first mile media types and resiliency options.

The applicable MRC charges for Attachment Circuits with the same UNI line speed may differ where different first mile access link media types e.g. fibre or radio are used.

In the case of fibre access links, a charge distinction is made between the typical case (where the NID in the Customer Site and the host Provider Edge (PE) node in the serving Vodafone POP site are in separate buildings and some distance apart) and the special case where NID and PE node are co-located at the Customer Site. “Co-located Fibre” Attachment Circuits have a reduced MRC charge reflecting the reduced outside plant fibre requirement.

EVC/OVC pricing takes into account service bandwidth amount, local or national charge zones and Classes of Service.

7.1.2 Non Recurring Charges

Installation Charge – Each Attachment Circuit installed incurs an NRC charge. This charge is invoiced in arrears.

Network Extension Charge – An additional charge may apply where the Installation of an Attachment Circuit requires the extension of network infrastructure or work (including but not limited to trenching, additional cabling or boring) to connect the Vodafone Network with the UNI at the Customer Site.

MAC Charge – MAC charges are incurred following completion and invoiced in arrears for:

a. EVC/OVC Service Bandwidth upgrades/downgrades.

b. UNI Speed upgrades/downgrades

c. UNI Interface presentation change (electrical/optical)

d. UNI Internal Relocation

e. UNI External Relocation

Miscellaneous Charges – These charges may be incurred for:


a. Incorrect Callouts

b. Feasibility Study

c. Relocation of Telecommunications Infrastructure

d. NID loss or damage

Early Termination Charges – A charge may apply when EVPN services are terminated before the minimum term for the service has expired.

Additional Works Charges – These charges may be incurred for:

a. Work performed outside Vodafone’s Standard Hours of Business including installation

b. Miscellaneous works associated with service activation

c. Work performed at customer request to resolve a customer problem

7.2 BillingEVPN services are billed on a monthly basis. Installation charges and recurring charges are itemised on the invoice.

Vodafone runs five bill cycles T01, T10, T16, T21 and T26 spread across each month. The bill cycle that a customer account is assigned to will determine the day of the month their bill preparation occurs on.

Vodafone will provide customers with a paper invoice (or pdf copy) for each account they operate showing charges for EVPN services. Electronic billing (E-bill) files supporting the monthly paper bills can be provided on request. E-bill files are available for download from the Vodafone website. Customers requiring E-bill files should contact their Account Support Representative to arrange a website login.

EVPN services are identified on the invoice by a circuit identifier. Each attachment circuit (network access link) and EVC/OVC is given a unique circuit identifier. Each circuit identifier appears as a line item on the invoice. Additional line items associated with the circuit identifier (i.e. billing service instance) provide the following information:

• Charge component description

• From and To dates applicable to the charge

• Charge amount

Attachment circuit recurring charge component descriptions will identify the UNI/E-NNI speed (i.e. 10/100/1000/10000Mbit/s) and the physical media (Fibre/DMR).

EVC/OVC recurring charge component descriptions will identify the service bandwidth amount and EVC/OVC type (point to point or multipoint). CoS Profile short names and charge zone qualifiers for EVC/OVC’s appear appended to the circuit identifier.

Billing enquiries should be directed to customers Account Support Representative in the first instance.


8 Acronyms

Acronym Expansion

BWP Bandwidth Profile

CCM Continuity Check Message

CE Customer Edge

CFM Connectivity Fault Management

CoS Class of Service

DSCP Designated Services Code Point

DMR Digital Microwave Radio

DWDM Dense Wavelength Division Multiplexing

ENNI External Network to Network Interface

EPLAN Ethernet Private LAN

EPL Ethernet Private Line

EVC Ethernet Virtual Connection

EVPLAN Ethernet Virtual Private LAN

EVPL Ethernet Virtual Private Line

IEEE Institute of Electrical and Electronics Engineers

IETF Internet Engineering Task Force

ITU International Telecommunication Union

LAN Local Area Network

LBM Loopback Message

LBR Loopback Reply

LTM Linktrace Message

LTR Linktrace Reply

MAC Media Access Control

ME Maintenance Entity

MEF Metro Ethernet Forum

MEG Maintenance Entity Group

MEN Metro Ethernet Network

MEP MEG End Point

MIP MEG Intermediate Point


Acronym Expansion

MPLS Multi-Protocol Label Switching

MTU Maximum Transmission Unit

MS-SPring Multiplex Section Shared Protection Ring

NID Network Interface Device

OAM Operations Administration and Maintenance

OSI Open Systems Interconnection

OTN Optical Transport Network

PDU Protocol Data Unit

POP Point of Presence

QoS Quality of Service

ROADM Reconfigurable Optical Add Drop Multiplexer

SLA Service Level Agreement

SOAM Service OAM

TDM Time Division Multiplexing

UNI User Network Interface

VLAN Virtual LAN

VPLS Virtual Private LAN Service

VPWS Virtual Private Wire Service

Table 31 - Glossary of Terms


9 Glossary

Term Description

Access EPL An Access EPL service interconnects a dedicated UNI and an ENNI. It provides a high degree of transparency such that Service Frames are delivered unchanged at the ENNI with the addition of an S-VLAN tag and the ENNI Frames are delivered unchanged at the UNI except for the removal of the S-VLAN tag.

Access EVPL Access EVPL service uses a UNI that can support multiple service instances. Vodafone and the Customer coordinate to define the OVC end point map for each OVC at the UNI and for the value of the S-VLAN ID that maps to each OVC end point at the ENNI. Access EVPL provides a high degree of transparency such that Service Frames are delivered unchanged at the ENNI with the addition of an S-VLAN tag and the ENNI Frames are delivered unchanged at the UNI except for the

Access Link The link that provides the physical transport for Ethernet frame transmission in the “first mile” between the customer premise and the nearest Vodafone PE node. Can be single mode fibre or radio.

All to One Bundling A UNI attribute in which all CE-VLAN IDs are associated with a single EVC

Attachment Circuit Circuit used for network attachment derived from the combination of NID, access link and aggregation switch port elements. The Attachment Circuit is a charging component (rate element) for EVPN services.

Availability A measure of the percentage of time that a service is useable. Availability is one of the SLA performance parameters for EVPN services.

Bandwidth Bandwidth is the net bit rate or data transfer rate (measured in bits per second) that can be transmitted between two UNI’s or a UNI and an ENNI that are part of a W-EVPN Service. The UNI speed limits the maximum data transfer rate for a W-EVPN service (e.g. Bandwidth is 100Mbit/s for a 100BASE-TX UNI).

Bandwidth Profile A method of classifying Service Frames for the purpose of rate enforcement and policing. A Bandwidth Profile is used to regulate the amount of traffic at a particular UNI or E-NNI.

Birth Certificate A report that details the results of a series of commissioning tests performed on a new service instance. All EVPN services are acceptance tested before handover using RFC2544 or Y.156sam test procedures to confirm they meet or exceed their performance SLA with results stored in the service Birth Certificate.


A Service Frame that has the broadcast destination MAC address (all 1’s). A Broadcast Frame originated from a UNI is sent to all other UNI’s in the service instance.

Bundling A UNI attribute in which more than one CE-VLAN ID can be associated with an EVC

Carrier Ethernet A term coined by the Metro Ethernet Forum (MEF). Short for Carrier Grade Ethernet it refers to next generation Ethernet that has been enhanced with new features and service attributes making it suitable for use in telecommunications networks for providing Wide Area Networking (WAN) services.

Class of Service A set of frames that have a commitment from Vodafone to receive a particular level of performance.


Term Description

Class of Service Frame Set

A set of Service or ENNI Frames that have a commitment from Vodafone subject to a particular set of performance objectives.

Class of Service Name A designation given to one or more sets of performance objectives and associated parameters by Vodafone.

Class of Service Performance Objective

An objective for a given performance metric.

Colour Mode A Bandwidth Profile parameter. The Colour Mode parameter indicates whether the colour-aware or colour-blind property is employed by the Bandwidth Profile. It takes a value of “colour-blind” or “colour-aware” only. EVPN services are colour blind at the UNI (i.e. the ingress BWP does not take into account any existing colour marking (Green or Yellow) of ingress frames)

Committed Information Rate

CIR is a Bandwidth Profile parameter. It defines the average rate in bits per second of Frames at an EI up to which the network delivers Frames, and is committed to meeting the performance objectives defined by the Service Level Agreement.

Committed Burst Size CBS is a Bandwidth Profile parameter. It limits the maximum number of bytes available for a burst of Frames sent at the EI speed to remain CIR-conformant.

Customer Edge The CE is a device at the end user site (typically a router or bridge/switch) that is connected to the Provider Edge (PE) via the Attachment Circuit.

CE-VLAN ID The VLAN ID of a VLAN tag added to a frame by the customer (also known as C-Tag) as opposed to the VLAN ID of any additional VLAN tag added to the frame by the Service Provider or Network Operator (Provider or S-Tag).

Data Link Layer Residing at Layer 2 of the OSI model the data link layer is responsible for responsible for media access control, flow control and error checking.

Dense Wavelength Division Multiplexing

A fibre optic communications technology that enables mutiplexing of multiple optical carrier signals onto a single optical fibre by using different optical frequencies (also referred to as wavelengths or colours).

Down-MEP A Down-MEP is A MEP residing in an IEEE 802.1 Bridge that receives CFM PDUs from, and transmits them towards, the direction of the LAN

E-Access Service Ethernet Access Service.

E-LAN Service Ethernet LAN Service

E-Line Service Ethernet Line Service

ENNI External Network to Network Interface

ENNI Frame An Ethernet frame transmitted across the ENNI toward Vodafone or an Ethernet frame transmitted across the ENNI toward the Subscriber.

The Service Frame consists of the first bit of the Destination Address to the last bit of the Frame Check Sequence of the Ethernet Frame transmitted across the ENNI.

End User A customer of a Vodafone Wholesale customer. The end user uses services which have been provided to them by the Vodafone Wholesale customer.


Term Description

Ethernet A “best efforts” computer networking technology originally designed for linking computers connected to Local Area Networks (LAN’s). Ethernet comprises both a data link layer protocol and multiple physical layer cabling and signalling variants and has been standardised by the IEEE (802.3 standard)

Ethernet Access Service

A generic MEF service type. The generic E-Access service type is based on the point to point OVC. E-Access services use an OVC that associates at least one UNI OVC End Point and one ENNI OVC End Point. E-LAN service type can be used to create Ethernet services that deliver multipoint to multipoint point connectivity.

Ethernet LAN Service A generic MEF service type. The generic E-LAN service type is based on the multipoint to multipoint point EVC. E-LAN service type can be used to create Ethernet services that deliver multipoint to multipoint point connectivity.

Ethernet Line Service A generic MEF service type. The generic E-Line service type is based on the point to point EVC. E-Line service type can be used to create Ethernet services that deliver point to point connectivity.

Ethernet Private Line An EVPN service option based on MEF E-Line service type that provides connectivity between two UNI’s using a single point to point EVC. EPL is a port based service variant.

Ethernet Private LAN An EVPN service option based on MEF E-LAN service type that provides “any to any” connectivity between two or more UNI’s using a single multipoint to multipoint point EVC. EPLAN is a port based service variant.

Ethernet Virtual Connection

An association of two or more UNIs that limits the exchange of Service Frames to UNIs in the Ethernet Virtual Connection.

EVCs identified by IEEE 802.1Q VLANs ensure that data packets are forwarded only to end stations within a specific subnet, thus reducing broadcast transmissions and allowing the Vodafone Network to be shared between multiple customers.

Ethernet Virtual Private LAN

An EVPN service option based on MEF E-LAN service type that provides “any to any” connectivity between two or more UNI’s using a single multipoint to multipoint point EVC. EVPLAN is a VALN based service variant.

Ethernet Virtual Private Line

An EVPN service option based on MEF E-Line service type that provides connectivity between two UNI’s using a single point to point EVC. EVPL is a VLAN based service variant.

Excess Information Rate

EIR is a Bandwidth Profile parameter. It defines the average rate in bits per second of Frames up to which the network may deliver Frames but without any performance objectives.

Excess Burst Size EBS is a Bandwidth Profile parameter. It limits the maximum number of bytes available for a burst of Frames sent at the EI speed to remain EIR-conformant.

External Interface Either a UNI or an ENNI

External Network to Network Interface

A reference point representing the boundary between two Operator MENs that are operated as separate administrative domains

First Mile The ‘first mile’ (aka “last mile) is the leg of a telecommunications network that connects the customer premise to the Provider Edge


Term Description

Frame Short for Ethernet Frame

Frame Delay The time required to transmit a Service or ENNI Frame from ingress EI to egress EI.

Frame Delay Variation The difference in delay of two Service Frames.

Frame Loss Ratio Frame Loss Ratio is a measure of the number of lost Service Frames or ENNI Frames between the ingress External Interface (EI) and the egress External Interface (EI). Frame Loss Ratio is expressed as a percentage.

Full Duplex A mode of operation that allows simultaneous communication in both directions of transmission. Contrasts with Half Duplex that supports both way communication but only in one direction at a time.

IEEE 802.1ad VLAN stacking, standardized in IEEE 802.1ad-2005, Provider Bridges, is a technique whereby a second VLAN tag is inserted into the Ethernet frame header so that overlapping VLAN IDs can be supported across a switched network

IEEE 802.1ag An IEEE Standard for Local and Metropolitan Area Networks Virtual Bridged Local Area Networks Amendment 5: Connectivity Fault Management. It defines protocols and practices for OAM (Operations, Administration, and Maintenance) for paths through 802.1 bridges and local area networks

IEEE 802.3 A working group and associated collection of IEEE standards for Ethernet.

IETF RFC2544 A benchmarking methodology for network interconnect devices. Used in commissioning testing of EVPN services.

Institute of Electrical and Electronics Engineers

The IEEE is a non-profit professional association, dedicated to the advancement of the theory and practice of Electrical, Electronics, Communications and Computer Engineering.

Inter Frame Delay Variation

The difference in delay of two Service or ENNI Frames of the same CoS Frame Set.

International Telecommunication Union

A specialized agency of the United Nations, that assists in the development and coordination of worldwide technical standards for information and communication technologies.

Internet Engineering Task Force

The IETF is an open standards organisation that develops and promotes Internet standards.

ITU-T Y.156sam A new out-of-service test methodology to assess the proper configuration and performance of an Ethernet service.

ITU-T Y.1731 An ITU standard for Ethernet performance monitoring using Ethernet OAM that encompasses the measurement of Ethernet frame delay, frame delay variation, and frame loss and throughput.

Layer 2 The data link layer of the seven layer OSI model of computer networking.

Layer 2 Control Protocol Service Frame

A Service Frame that is used for Layer 2 control, e.g., Spanning Tree Protocol

Layer 3 The network layer of the seven layer OSI model of computer networking.


Term Description

Link OAM A link level OAM protocol specified in IEEE 802.3ah standard. Operates on single point to point link and is not propagated beyond a single hop. Provides functions including OAM discovery, Link Monitoring, Remote Loopback.

Local Area Network A computer network that interconnects computers in a limited geographical area e.g. home or office

Maintenance Entity An association between two maintenance end points within an OAM Domain; where each maintenance end point corresponds to a provisioned reference point that requires management

Maintenance Entity Group

A MEG consists of the maintenance entities (MEs) that belong to the same service inside a common OAM domain.

For a Point-to-Point EVC, a MEG contains a single ME.

For a Multipoint-to-Multipoint EVC of n UNIs, a MEG contains n*(n-1)/2 MEs

A MEG is equivalent to a Maintenance Association as defined in IEEE Std. 802. 1Q CFM

MEG Level A small integer in a field in a SOAM PDU (with a value in the range 0-7) that is used, along with the VLAN ID in the VLAN tag, to identify to which OAM Domain and Maintenance Entity the PDU belongs in.

A MEG Level is equivalent to a Maintenance Domain Level as defined in IEEE Std. 802. 1Q CFM

MEG Intermediate Point A provisioned OAM reference point which is capable of reacting to diagnostic OAM frames initiated by MEPs. A MIP does not initiate proactive or diagnostic OAM frames.

Maximum Transmission Unit

The maximum data payload length (PDU size) that can be encapsulated in the Ethernet frame. In contrast the UNI MTU Size service attribute specifies the maximum Service Frame size (in Bytes) allowed at the UNI.

Media Access Control Sublayer of the Data Link Layer in the OSI model. For 802.3 networks provides functions such as transmitting and receiving frames, discarding malformed frames, half duplex re-transmission and back-off.

MEG End Point A MEP is a provisioned OAM reference point which can initiate and terminate proactive OAM frames. A MEP can also initiate and react to diagnostic OAM frames.

A Point-to-Point EVC has two MEPs, one on each end point of the ME. A Multipoint-to-Multipoint EVC of n UNIs has n MEPs, one on each end point.

Metro Ethernet Forum The MEF is a non-profit international industry consortium, dedicated to worldwide adoption of Carrier Ethernet networks and services.

Metro Ethernet Network

A Service Provider’s network providing Ethernet services. Vodafone has a MEN and is both a network operator and service provider.

Multicast A Service Frame that has a multicast destination MAC address. Ethernet frames with a value of 1 in the least-significant bit of the first octet of the destination address are treated as multicast frames and are flooded to all points on the network e.g. 01-80-C2-00-00-00 is a multicast DA used for the Spanning Tree Protocol.


Term Description

Multi-Protocol Label Switching

A packet based data encapsulation and switching technology that facilitates end to end connections across any type of transport medium using any protocol.

Network Interface Device

An intelligent demarcation device supplied by Vodafone and located at the end user site that can be remotely managed and performs multiple functions including:

• SLA assurance and reporting

• Media conversion (e.g. optical to electrical)

• Class of Service

• Traffic management (e.g. policing and shaping)

Network Layer Residing at Layer 3 of the OSI model the network layer is responsible for packet forwarding including routing through intermediate routers.

OAM Domain A network or sub-network, be-longing to the same administrative entity, within which Ethernet OAM frames can be exchanged. An OAM Domain determines the span of an OAM flow and can cross the administration boundary of other domains.

A OAM Domain is equivalent to a Maintenance Domain as defined in IEEE Std. 802. 1Q CFM

OFFNET Typically used the context of Attachment Circuits, where part of the infrastructure used to provision the Attachment Circuit is being leased from a third party network operator.

Open Systems Interconnection

An attempt to standardise networking to provide multi-vendor interoperability initiated by the International Organisaton for Standardisation (OSI)

ONNET Typically used the context of Attachment Circuits, where the entire infrastructure used to provision the Attachment Circuit is owned and operated by Vodafone.

Operator Virtual Connection

An association of OVC endpoints

Optical Transport Network

A set of optical network elements connected by optical fibre links, able to provide functionality of transport, multiplexing, switching, management, supervision and survivability of optical channels carrying client signals. An OTN enables transparent transport of data services over optical wavelengths in DWDM systems and has been standardized in ITU recommendation G.709.

OSI model A seven layered model of network architecture developed as part of the OSI effort. It describes the functions of a computer communications system in terms of abstraction layers.

OVC Endpoint An association of an OVC with a specific external interface (UNI or E-NNI)

Performance Tier A set of CoS Performance Objectives (CPO’s) specifying values for the four performance parameters (i.e. FD, IFDV, FLR, Availability) that are used in EVPN service performance SLA’s.

Point of Presence Vodafone equipment room or building that houses network equipment or infrastructure associated with provision of the EVPN service


Term Description

Protocol Data Unit A PDU is a unit of data which is specified in a protocol of a given layer and can contain control information such as addresses or OAM parameters and user data.

Provider Edge (PE) Switching elements at the edge of the Vodafone network through which EVPN services are delivered. An Attachment circuit is required to connect CE devices at a customer premise to the network via a PE switch port.

Priority Code Point The 3 bit field in the IEEE 802.1Q VLAN Tag that supports 8 Class of Service (CoS) priority values (CE VLAN CoS) numbered 0 through 7.

Quality of Service Refers to mechanisms used in packet switched networks carrying multiple traffic types to achieve a quality customer experience under network congestion conditions. The mechanisms used to provide QoS in the Vodafone network consist of a combination of traffic classes of service, dedicated queues per traffic class and specific queue scheduling algorithms in network elements

Router Generally a Layer 3 gateway device, that connects two or more networks together operating at the network layer of the OSI model. Typically routers make forwarding decisions for IP packets by maintaining and consulting an internal routing table containing IP destination network and associated interface port information.

Service Bandwidth The headline data rate or operating speed of a service’s virtual connection. EVPN Service Bandwidth is available in 32 speed increments. The chosen service bandwidth amount is a factor in determining service charges and is also used in determining how the bandwidth profile parameters CIR and EIR are configured for each CoS in the services CoS Profile.

Service Frame An Ethernet frame transmitted across the UNI toward Vodafone or an Ethernet frame transmitted across the UNI toward the Subscriber.

The Service Frame consists of the first bit of the Destination MAC Address through the last bit of the Frame Check Sequence.

Service Frames may be classified as Unicast, Multicast, Broadcast or Layer 2 Control Protocol Frames.

Service Level Agreement

A contract between the Customer and Vodafone specifying the agreed to service level commitments and related business agreements.

Service Multiplexing A UNI service attribute in which the UNI can be in more than one EVC instance. Service Multiplexing provides the ability to support multiple EVC’s at a UNI.

Service Profile The complete set of attributes for a particular EVPN service.

Service OAM End to end OAM protocols specified in IEEE and ITU standards 802.1ag and Y.1731. Provides connectivity fault management and performance monitoring.

S VLAN ID Service VLAN ID is the VLAN ID of the outer or Service Provider Tag (S-Tag) as defined in IEEE Standard 802.1ad-2005.

Synchronous Digital Hierachy

A TDM based switching and transport technology that adheres to International Telecommunications Union (ITU) G.707, G.783, G.784 and G.803 international standards and enables multiplexing of multiple digital bit streams for transport over optical fibre.


Term Description

Unicast Service Frame A Service Frame that has a unicast destination MAC address.

Up-MEP An Up-MEP is a MEP residing in an IEEE 802.1 Ethernet Bridge that transmits CFM PDUs towards, and receives them from, the direction of the Bridge Relay Entity.

User Network Interface The physical demarcation point between the responsibility of the Service Provider and the responsibility of the Subscriber

Virtual LAN A Virtual LAN is a switched network that connects two or more customer locations or User-Network Interfaces (UNIs) and:

Enables the transfer of Ethernet frames between locations that are connected by the same VLAN.

Prevents data transfer between customer locations or UNIs that are not part of the same VLAN.

The function of a VLAN is to isolate the Layer 2 Media Access Control (MAC) broadcast domains

Virtual Private LAN Service

A Layer 2 VPN technique used to provide LAN interconnection across an IP/MPLS packet switched network based on psuedowire encapsulation. VPLS supports both point to point and multipoint to multipoint connectivity.

Virtual Private Network A Wide Area Network (WAN) provisioned across a shared network infrastructure that can simultaneously support many discrete WAN’s that each appear to their end users to be a dedicated private network.

Virtual Private Wire Service

VPWS (also known as Virtual Leased Line) is a Layer 2 VPN technique used to provide Ethernet (or other Layer 2 protocol) based communication across an IP/MPLS packet switched network based on psuedowire encapsulation. VPWS supports point to point communication only.

VLAN ID The Virtual LAN ID (VID) is the 12 bit field in an IEEE 802.1Q Tag that identifies the VLAN to which a Service Frame belongs. The VLAN ID field can take values between 0 and 4095.

Wholesale EVPN Wholesale Ethernet Virtual Private Network

A Vodafone product offering that provides a range of packet switched, Layer 2, digital data transport services that can be used by Wholesale customers and their end users in a variety of Wide Area Networking (WAN) data connectivity applications.

Table 32 - Glossary of Terms


10 Appendix A – Layer 2 Control Protocol HandlingThe treatment options of Layer 2 Control Protocols for the different EVPN services are as detailed in the following table.


EVPN Service Type

EPL EPLANAccess EPL

EVPL EVPLANAccess EVPL

Spanning Tree (STP/RSTP/MSTP)

Tunnel Tunnel Tunnel Discard Discard Discard

Flow control (802.3x PAUSE frame)

Discard Discard Discard Discard Discard Discard

Link Aggregation (LACP/LAMP)

Tunnel* or Peer

Discard*

Or Peer

Tunnel* or Peer

Discard Discard Discard

Link OAM Tunnel* or Peer

Discard*

Or Peer

Tunnel* or Peer

Discard Discard Discard

Port Authentication (802.1x)

Tunnel Discard Tunnel Discard Discard Discard

Ethernet Local Management Interface (E-LMI)


Link Layer Discovery (LLDP)


Registration (GARP/MRP) Tunnel Tunnel Tunnel Discard Discard Discard

Cisco Discovery Protocol (CDP)


Cisco VLAN Trunking Protocol (VTP)


Cisco Per VLAN Spanning Tree Protocol (PVST)


Table 33 - L2CP Handling

* - Default value


11 Appendix B – Service Attribute DescriptionsAttributes and valid parameter values for each of the EVPN services are described in the following paragraphs

11.1 UNI and EVC per UNI AttributesA UNI can have a number of characteristics that affect the way that the CE device sees the service. UNI’s in an EVC do not all need to have the same characteristics and may differ e.g. different physical layer speeds.

UNI attributes may be independent of EVC’s at the UNI or associated with EVC’s at the UNI.

11.1.1 UNI Identifier

Each UNI of an EVPN service is assigned a unique Identifier. The UNI ID is not carried in any field of the Service Frames and is independent of EVC’s at the UNI. This identifier (designation) will appear on invoices and should be labelled on the NID at the end user site. The designator can be quoted when reporting service faults as supplementary information.

The format of the designation follows the Vodafone standard and consists of a prefix of three alphanumeric characters followed by a suffix that is a unique 6 or 7 digit integer.

For ONNET sites the prefix is ETN. An example service ID could be ETN446357

11.1.2 Physical Layer

The characteristics of the Physical layers (PHY) that may be used with EVPN UNI’s and E-NNI’s are specified in terms of Speed, Mode and Physical Medium:

Speed UNI ports may be configured to operate at one of four transmission speeds 10, 100, 1000 and 10000Mbit/s. E-NNI ports may be configured to operate at one of two transmission speeds 1000 or 10000Mbit/s.

Mode All EVPN UNI’s are provisioned for full duplex operation. Half duplex mode is not supported. Full duplex operation allows simultaneous communication in both directions of transmission.

Physical Media Unshielded or shielded twisted pair copper based media are supported for UNI Speeds 10; 100 and 1000Mbit/s. The connector type for copper based media is an 8P8C (RJ45) Jack. All NID’s have built in copper ports and this is the default provided for 10; 100 and 1000Mbit/s UNI’s.

Single Mode fibre media is supported for UNI/E-NNI Speeds 1000 and 10000Mbit/s (1G and 10G). 1G optical ports for UNI’s may be provided on request (subject to availability and may incur additional installation charges). For E-NNI’s copper ports are not supported.

The default connector type for optical ports LC. Optical ports require the equipping of SFP or SFP+ devices in the NID’s. The standard SFP used has nominal 10km reach. Alternative optics e.g. Multimode or Single Mode with longer reach optics may be supported on an Individual Case Basis.

NB - The physical Layer UNI attributes of speed, mode and physical medium are independent of the EVCs at the UNI, and UNIs with different speeds and physical media may be mixed in the same EVC.

11.1.3 MAC Layer

Ethernet standards define a format for packets/frames passed from the Medium Access Control (MAC) Layer to the Physical Layer (PHY). EVPN service supports customer traffic with the following standard Ethernet frame formats:

• IEEE 802.3-2005


• Ethernet Version 2 as released by the DIX (Digital Equipment Corporation/Intel/Xerox) consortium

EVPN will accept Ethernet frames at the UNI that adhere to these standards with the exception that the data payload length may be greater than 1500 bytes.

Service Frames are divided into two groups, Data Service Frames (Unicast, Multi-Cast or Broadcast Frames) and Layer 2 Control Protocol Frames. The Service Frame consists of the first bit of the Destination MAC Address through to the last bit of the Frame Check Sequence.

The possible Service Frames types and their delivery at UNI’s are as follows:

• Unicast – These frames have a unicast destination MAC address (single host destination) and will typically be delivered to all UNI’s in the EVC but the ingress UNI if the frame has not been learned by network equipment. Otherwise delivery will be to the UNI learned from the destination MAC address.

• Multicast - These frames have a multicast destination MAC address (group of host destinations) and will typically be delivered only to UNI’s in the EVC interested in receiving the frames.

• Broadcast - These frames have a broadcast destination MAC address (all attached hosts) and will typically be delivered to all UNI’s in the EVC but the ingress UNI. All 1’s in the Destination Address field (Hexadecimal FFFFFF) is defined as the Broadcast Address.

• Layer 2 Control Protocol (L2CP) – These frames are used for various control purposes and typically have a well-known destination MAC address or can be uniquely identified by additional fields such as Ethertype or a protocol identifier. Layer 2 Control Protocols may be tunnelled, peered or discarded at the UNI.

The MAC layer attribute is independent of the EVCs at the UNI.

The typical frame formats for untagged and IEEE 802.1Q VLAN tagged Ethernet frames at a UNI are shown in Figure 26 and 27.

Destination Address

Source Address Length/Type Data Payload Frame Check Sequence

6 Bytes 6 Bytes 2 Bytes 46 - 1500 Bytes 4 Bytes

Figure 26 – Untagged Ethernet Frame Format (64 to 1518 bytes)

The destination and source addresses (MAC addresses) are unique 48 bit (6 byte values).

The Length/Type field can indicate the length of the frame or more commonly the protocol encapsulated in the data payload field which is referred to as an Ethertype value e.g. a typical Ethertype value is hexadecimal 0800 (0x0800) for Internet Protocol version 4 (IPv4) payloads.

The Frame Check Sequence (FCS) is 4 bytes of extra checksum characters added to frames for error detection. The FCS algorithm used is Cyclic Redundancy Check (CRC).


Destination Address

Source Address

802.1Q Tag CE-VLAN Length/Type

Data Payload Frame Check Sequence

6 Bytes 6 Bytes 2 Bytes 46 - 1500 Bytes

4 Bytes

Tag Protocol Identifier0x8100

Priority Code Point

CFI/DPI VLAN ID

16 Bits 3 Bits 1 Bits 12 Bite

2 Bytes 2 Bytes

Figure 27 – 802.1Q tagged Ethernet Frame Format (68 to 1522 Bytes)

The 3 bit Priority Code Point field in the 802.1Q Tag supports 8 Class of Service (CoS) priority values (CE VLAN CoS) numbered 0 through 7.

The 12 bit VLAN ID field in the 802.1Q Tag supports 4095 Customer Edge VLAN ID values (CE-VLAN ID aka CVID) numbered 1 through 4095.

At E-NNI’s Ethernet Frames have two VLAN tags with the outer tag being a Service Provider (S-Tag) and the inner tag being the customer (C-Tag) as defined in IEEE Standard 802.1ad-2005. S-VLAN tag based multiplexing of services occurs at ENNI ’s permitting efficient aggregation while maintaining CE-VLAN ID preservation for all customer traffic. The frame format for double tagged Ethernet frames at an E-NNI is shown in figure 28.

Destination Address

Source Address

802.1ad Tag S-VLAN

0x88a8

802.1Q Tag CE-VLAN 0x8100

Length/Type

Data Payload Frame Check Sequence

6 Bytes 6 Bytes 4 Bytes 4 Bytes 2 Bytes 46 - 1500 Bytes

4 Bytes

Figure 28 – 802.1ad double tagged Ethernet Frame Format

11.1.4 UNI Maximum Transmission Unit (MTU) Size

The term MTU generally refers to the maximum data payload length that can be encapsulated in the Ethernet frame. For example IEEE 802.3 standard frames can support payload lengths between 46 and 1500 bytes so the MTU is 1500 bytes.

In contrast the UNI Maximum Transmission Unit (MTU) Size service attribute specifies the maximum Service Frame size (in Bytes) allowed at the UNI. This includes all the fields from destination address to frame check sequence. For an untagged frame this is 14 bytes of Ethernet header and 4 bytes FCS, plus standard 1500 bytes MTU of payload making total length of 1518 bytes. IEEE 802.1Q tagged frames have an additional 4 byte tag making total length 1522 bytes.

The default UNI Maximum Transmission Unit (MTU) Size for EVPN is 1526 bytes.

Jumbo frames with payload field lengths larger than 1500 bytes are able to be supported with EVPN services. 2000 and 9216 byte UNI MTU sizes can be supplied in some instances. Customers should check with solutions consultant to confirm availability prior to order.

The UNI MTU Size attribute is independent of the EVCs at the UNI.


11.1.5 Service Multiplexing

Service Multiplexing refers to the ability to support multiple EVC/OVC’s at a UNI or E-NNI. A UNI with this attribute enabled can be in more than one EVC or OVC instance. Both point to point and multipoint EVC’s can be multiplexed in any combination at a Service Multiplexed UNI.

Use of Service Multiplexing enables a reduction in the number of UNI’s that a customer would otherwise need to purchase and manage at a site. Potential cost savings may also be realised on CE equipment needed due to decreased port requirements.

For EVPN “Private” services (i.e. EPL, EPLAN and Access EPL) service multiplexing is not supported at any UNI’s. For EVPN “Virtual Private” services (i.e. EVPL, EVPLAN and Access EVPL) service multiplexing can be supported at one or more UNI’s.

The Service Multiplexing attribute is independent of the EVCs at the UNI.

11.1.6 CE-VLAN ID/EVC Map

The CE-VLAN ID/EVC Map provides a mapping table between the CE-VLAN IDs at the UNI and the EVC to which they belong. The mapping table may be different at other UNI’s that an EVC is part of.

The CE-VLAN ID/EVC Map attribute is associated with EVCs at the UNI

At a given UNI, the EVC for a Service Frame is identified by the Customer Edge

VLAN ID (CE-VLAN ID). There are 4095 possible CE VLAN ID’s numbered 1 through 4095.

The CE-VLAN ID is derived from the content of the ingress customer Service Frame.

For an ingress Ethernet frame with an IEEE 802.1Q tag the 12-bit VLAN ID may contain a value between 0 and 4095. For frames with tag values between 1 and 4095 the CE-VLAN ID is equal to the tag value.

For ingress frames that are untagged or frames where the tag value is 0 (referred to as priority tagged frames) a CE-VLAN ID value from the range 1 to 4094 will be assigned in the network. The CE VLAN ID value assigned will always be the same for both Untagged and priority tagged frames.

More than one CE VLAN ID may point to the same EVC (referred to as bundling and described in Section 10.1.8).

With EVPN services a range of mapping scenarios is possible and in some scenarios, it may be necessary for the customer and Vodafone to agree upon the CE-VLAN ID/EVC Map at the UNI. While every effort will be made to accommodate a specific customer CE VLAN ID/EVC Map request, Vodafone reserves the right to dictate the mapping.

11.1.7 Maximum number of EVC’s

This attribute defines the maximum number of EVCs that a UNI can support. For EVPN “Private” services (i.e. EPL, EPLAN and Access EPL) the value will be one as these services only support a single EVC. For EVPN “Virtual Private” services (i.e. EVPL, EVPLAN and Access EVPL) that support service multiplexing the value can be more than one.

The Maximum number of EVC’s attribute is independent of the EVCs at the UNI.

11.1.8 Bundling

Bundling refers to the ability for more than one CE-VLAN ID to be associated with an EVC. A UNI with the Bundling attribute enabled can have more than one CE-VLAN ID map to a particular EVC at the UNI.

The Bundling attribute is independent of the EVCs at the UNI.

Figure 29 shows an example of bundling. As shown, there are three EVPL services (point to point EVC’s) linking three customer sites A, B and C. Each UNI supports Service Multiplexing. The bundling attribute applies to UNI A


and B.

Three CE VLAN IDs (47, 48 and 49) map to the BLUE EVC at these UNI’

UNI B

UNI A UNI C

RED EVC

BLUE EVC GREEN EVC

47,48,49 1

47,48,49 1 1

1

113 47

Figure 29 – Bundling example

Any EVC such as BLUE EVC that has more than one CE-VLAN ID mapping to it must also have its CE-VLAN ID Preservation Service Attribute (see Section 10.2.5) enabled and the list of CE-VLAN IDs mapped to the EVC must always be the same at each UNI in the EVC.

11.1.9 All to One Bundling

All to One Bundling is a special case of bundling but it is sufficiently important to be called out as a separate attribute.

The All to One Bundling attribute is independent of the EVCs at the UNI.

When a UNI has the All to One Bundling attribute enabled, all CE-VLAN IDs MUST map to a single EVC at the UNI. This means that Service Multiplexing is not supported.

Table 34 shows the Bundling and Service Multiplexing combinations that are supported at the UNI’s of the various Vodafone EVPN services.

Service Attribute

EPL EVPL EPLAN EVPLANAccess EPL

Access EVPL


No Yes No Yes No Yes

Bundling No Yes or No No Yes or No No Yes or No

All to one Bundling

Yes No Yes No Yes No

Table 34 – EVPN service Service Multiplexing and Bundling Support

11.1.10 Bandwidth Profiles

A Bandwidth Profile is a method of classifying Frames for the purpose of rate enforcement and policing.

The Bandwidth Profile defines the set of traffic parameters applicable to a sequence of Service Frames.


EVPN services use ingress Bandwidth profiles to regulate the amount of ingress traffic at a particular UNI. The bandwidth profile allows Vodafone to offer bandwidth to customers in increments less than the UNI (Physical port speed).

The Ingress Bandwidth Profile attribute is associated with EVCs at the UNI.

Where there are multiple EVC’s at a UNI each can have its own bandwidth profile.

The bandwidth profile effectively specifies the average rate of “committed” and “excess” Ethernet Frames allowed into the network at the UNI (from a customer perspective).

An algorithm is used in conjunction with the bandwidth profile to classify traffic to determine if it is compliant with the bandwidth profile parameters. The algorithm declares frames compliant or non-compliant with the profile. The level of compliance is expressed as one of three colours Green, Yellow or Red.

Frames sent up to the committed EVC rate are viewed by the algorithm as in profile or compliant and are marked as Green. These frames will be delivered according to the Service Level Agreement (SLA) for the service

Frames sent up to excess information rate are viewed by the algorithm as out of profile or non-compliant and are marked as Yellow but they are delivered without any SLA objectives

Frames above the excess information rate are viewed by the algorithm as non-conformant and are marked as Red and will be discarded (i.e. dropped at ingress and not delivered)

A bandwidth profile consists of the following parameters:

• Committed Information Rate (CIR) expressed as bits per second.

• Committed Burst Size (CBS) expressed as bytes.

• Excess Information Rate (EIR) expressed as bits per second.

• Excess Burst Size (EBS) expressed as bytes.

• Color Mode (CM) - has only one of two possible values, “color-blind” and “colour-aware.”

The CIR defines the average rate in bits per second of Service Frames up to which the network delivers Service Frames and meets the performance objectives defined by the service SLA

The CBS limits the maximum number of bytes available for a burst of Service Frames sent at the UNI speed to remain CIR-conformant. Eg for 10Mbit/s UNI speed a CBS of 200 bytes allows would allow 3 x 1500byte frames to be sent at 10Mbit/s line rate and still be CIR compliant

The EIR defines the average rate in bits per second of Service Frames up to which the network may deliver Service Frames but without any SLA performance objectives

The EBS limits the maximum number of bytes available for a burst of Service Frames sent at the UNI speed to remain EIR-conformant.

A Bandwidth Profile algorithm is said to be in colour aware mode when each Service Frame already has a level of compliance (i.e., a colour) associated with it and that colour is taken into account in determining the level of compliance by the Bandwidth Profile algorithm. The Bandwidth Profile algorithm is said to be in colour blind mode when the colour (if any) already associated with each Service Frame is ignored by the Bandwidth Profile Algorithm.

EVPN services do not take into account whether frames entering the network have already been classified and marked as compliant and so the colour mode is always colour blind.

Bandwidth Profiles are associated with the UNI. This allows different Bandwidth Profiles at ach UNI in an EVC. Bandwidth profiles are able to be applied per EVC and per CoS ID as illustrated in figures 30 and 31.


EVC1

EVC2UNI

EVC3

Bandwidth profile per EVC1



Figure 30 – BW profile per EVC

EVC1

EVC2

CE-VLAN Cos 0,1,2,3

CE-VLAN Cos 1

CE-VLAN Cos 2,3UNI




Figure 31 – BW profile per CoS ID

11.1.11 Layer 2 Control Protocol Processing

There are a number of layer 2 protocols that may be used for control purposes in LAN’s. A common example is the Spanning Tree Protocol that can be used to avoid Layer 2 switching loops and broadcast storms in LAN’s consisting of multiple interconnected IEEE 802.1D bridges.

The Layer 2 Control Protocol Processing attribute is independent of the EVCs at the UNI.

For customers or end users who choose to deploy IEEE 802.1D or IEEE 802.1Q bridges (as opposed to routers) as CEs it may be important that a service can process some of these protocols effectively.

Some Layer 2 Control protocols share the same destination MAC address and are identified by additional fields such as the Ethertype and a protocol identifier. A Service Frame whose destination MAC address is one of the 33 multicast addresses listed in the following table will be treated as a Layer 2 Control Protocol Service Frame by the Vodafone network.

Destination MAC Addresses Description

01-80-C2-00-00-00 through 01-80-C2-00-00-0F Bridge PDU block protocols. Used for multiple bridge management functions including configuration and fault management. An IEEE 802.1D bridge never forwards any frame sent to any address in the BPDU block.


Destination MAC Addresses Description

01-80-C2-00-00-20 through 01-80-C2-00-00-2F GARP block protocols. Used as a framework for registering attributes (such as MAC addresses) between switches and hosts in a bridged LAN. Applications using GARP include GMRP that constrains multicasts to ports whose addresses have been registered. An IEEE 802.1D bridge stops frames sent to the GARP block that it understands, and forwards as normal multicasts frames sent to the GARP block that it does not understand

01-80-C2-00-00-10 All Bridges protocol. Used to reach all bridges in a bridged LAN. An IEEE 802.1D bridge both receives, and forwards as a normal multicast, frames addressed to the All Bridges MAC address

Table 35 – Layer 2 Control Protocol Destination MAC addresses

Table 36 lists the well known L2CP’s

Protocol Relevant StandardDestination MAC address

Other identifiers

Spanning Tree / Rapid Spanning Tree

IEEE 802.1D-2004, “Part 3: Media Access Control (MAC) Bridges”

01-80-C2-00-00-00 LLC PDU header

DSAP/SSAP= 0x42

CTL=0x03

Multiple Spanning Tree IEEE 802.1Q-2005, “Virtual Bridged Local Area Networks”

01-80-C2-00-00-00 LLC PDU header

DSAP/SSAP= 0x42

CTL=0x03

PAUSE IEEE 802.3-2005, “Part 3: Carrier sense multiple access with collision detection (CSMA/CD) access method and physical layer specifications”

01-80-C2-00-00-01 Ethertype: 0x8808

Link Aggregation Control / Link Aggregation Marker

IEEE 802.3-2005, “Part 3: Carrier sense multiple access with collision detection (CSMA/CD) access method and physical layer specifications”

01-80-C2-00-00-02 Ethertype: 0x8809

Slow Protocols subtype: 1 - LACP

Slow Protocols subtype: 2 - LAMP


Protocol Relevant StandardDestination MAC address

Other identifiers

Link OAM IEEE 802.1X-2005, “Part 3: Carrier sense multiple access with collision detection (CSMA/CD) access method and physical layer specifications”

01-80-C2-00-00-02 Ethertype: 0x8809

Slow Protocols subtype: 3

Port Authentication IEEE 802.1X-2004, “Port-Based Network Access Control”

01-80-C2-00-00-03 Ethertype: 0x888E

Ethernet Local Management Interface (E-LMI)

MEF Technical Specification MEF 16, “ Ethernet Local Management Interface” January 2006

01-80-C2-00-0007 Ethertype: 0x88EE

Link Layer Discovery IEEE 802.1AB-2005, “Station and Media Access Control, Connectivity Discovery”

01-80-C2-00-00-0E Ethertype: 0x88CC

Generic Attribute Registration

IEEE 802.1Q-2004, “Virtual Bridged Local area Networks”

01-80-C2-00-00-20 through 01-80-C2-00-00-2F

Multiple Registration IEEE 802.1ak-2007, “Virtual Bridged Local Area Networks, Amendment 07: Multiple Registration Protocol”

01-80-C2-00-00-20

through

01-80-C2-00-00-2F

MMRP

DA: 01-80-C2-00-00-20 Ethertype: 0x88F6

MVRP

DA: 01-80-C2-00-00-21 Ethertype:0x88F5

Cisco Discovery Protocol Cisco Proprietary 01-00-0C-CC-CC-CC LLC SNAP PDU header

PID 0x2000

Cisco VLAN Trunking Protocol

Cisco Proprietary 01-00-0C-CC-CC-CC LLC SNAP PDU header

PID 0x2003

Cisco Per VLAN Spanning Tree Protocol

Cisco Proprietary 01-00-0C-CC-CC-CD LLC SNAP PDU header

PID 0x010B

Table 36 – Well known L2CP’s

Any L2CP’s with one of the above destination addresses that are presented at an EVPN service UNI may be handled in one of the following ways:


1. Discard - means that the network will discard ingress L2CP frames of a given protocol and destination address pair and will not generate that protocol and address pair on egress from the network.

2. Peer means that the network will actively participate with the protocol if the destination address is as specified. L2CPs that could be peered include: Link Aggregation Control Protocol (LACP/LAMP), IEEE 802. 3ah Link OAM protocol and Ethernet LMI protocol (E-LMI).

3. Tunnel means that frames are transparently passed to a given EVC for transport across the network to the destination UNI(s). Tunnelled frames are carried like other Service Frames.

The available EVPN services have differing capabilities in regard to support for processing Layer 2 Control Protocols (L2CP’s). Appendix A contains a list of L2CP treatment by protocol type for each EVPN service.

NB - The All LANs Bridge Management Group Address (01-80-C2-00-00-10) has been officially deprecated in 802.1Q-2005, which states that address should not be used for Bridge management or for any other purpose. The recommended protocol for remote Bridge management is SNMP, which typically uses IP as a Network Layer protocol.

11.2 Ethernet Virtual Connection Service AttributesAn EVC is an association of two or more UNI’s. It connects UNI’s enabling the transfer of Service Frames between them and prevents transfer between UNI’s that are not part of the same EVC.

A UNI can support more than one EVC if the Service Multiplexing attribute is enabled.

EVC’s are bi-directional with Service Frames able to originate at any UNI in an EVC. Service Frames are never delivered back to the UNI they originated from.

EVC service attributes listed in the following paragraphs describe the characteristics of the EVC(s) at each UNI.

11.2.1 EVC Type

EVPN services currently support two types of EVC

• Point to Point

• The point to point EVC is associated with exactly two UNI’s and a Service Frame originated at one UNI can only egress at the other UNI.

• Multipoint to Multipoint

• The multipoint to multipoint EVC is associated with two or more UNI’s and a Service Frame originated at one of the UNI’s can egress at one or more of the other UNI’s.

11.2.2 EVC Identifier

Each EVC or OVC of an EVPN service is assigned a unique Identifier. The EVC ID is not carried in any field of the Service Frames. This identifier (designation) will appear on invoices and should be quoted when reporting service faults as primary information.

The format of the designation follows the Vodafone standard and consists of a prefix of three alphanumeric characters followed by a suffix that is a unique 6 or 7 digit integer.

Each EVPN service type has a specific prefix as shown in Table 37.

Service Type Designation Prefix Example Service Designation

EPL EPL EPL446358

EVPL EVL EVL446402


Service Type Designation Prefix Example Service Designation

EPLAN EPN EPN446444

EVPLAN EVN EVN446521

Access EPL APL APL446562

Access EVPL AVL AVL446579Table 37 – EVPN service identifiers

11.2.3 Maximum number of UNI’s

This attribute defines the maximum number of UNI’s that can be in the EVC/OVC. For EVPN services that use point to point EVC’s or OVC’s this value will be two. For EVPN services that use multipoint to multipoint EVC’s this will be two or greater.

11.2.4 Service Frame Delivery

Service Frames are classified as either Data Service Frames or Layer 2 Control Protocol Frames and may be Unicast, MultiCast or Broadcast. The Service Frame Delivery attribute defines how EVPN Ingress Services Frames may be processed by the network as follows:

a. Discard: The Service Frame is discarded. An example is a Service Frame containing a particular Layer 2 Control protocol, (e.g., IEEE 802.3x), that is always discarded at the UNI. All ingress Service Frames with an invalid FCS will be discarded by the network.

b. Deliver Unconditionally: No matter what the content (assuming correct FCS) of the Service Frame, it is delivered across the other (egress) UNI(s). This might be the behaviour of a Point-to-Point EVC.

c. Deliver Conditionally: The Service Frame is delivered across an egress UNI if certain conditions are met. An example of such a condition is broadcast throttling where some Service Frames with the broadcast destination MAC address are dropped to limit the amount of such traffic. When this option is in force the conditions will be specified.

d. Tunnel: This applies only to Layer 2 Control Protocol Service Frames (refer 4.15.7).

11.2.5 CE VLAN ID Preservation

A Service Frame is said to have its CE-VLAN ID preserved when the relationship between an ingress Service Frame and its corresponding egress Service Frame(s) is as described in Table 38.

Ingress Service Frame Egress Service Frames

Has no IEEE 802.1Q Tag Has no IEEE 802.1Q Tag

Contains an IEEE 802.1Q Tag Contains an IEEE 802.1Q Tag with the VLAN ID equal to the VLAN ID of the Tag on the ingress Service Frame

Table 38 – CE VLAN ID Preservation definition

An EVPN EVC with the CE-VLAN ID Preservation Service Attribute enabled will preserve the CE-VLAN ID for Service Frames as described in Table 39.


CE-VLAN ID/EVC Map

CharacteristicService Frames with CE-VLAN ID Preserved

All to One Bundling at all UNIs All Data Service Frames

All other cases All tagged Data Service Frames with VLAN ID in the range 1 – 4094

Table 39 – CE VLAN ID/EVC Map and CE VLAN ID Preservation

When an EVC includes a UNI with the bundling attribute enabled the EVC will have the CE-VLAN ID Preservation service attribute.

For EVPN services with CE VLAN ID Preservation there is no constraint on the customer choice of VLAN ID or the number of CE-VLAN IDs (i.e. no co-ordination of numbering required with Vodafone).

11.2.6 CE VLAN CoS Preservation

In an EVC with the CE-VLAN CoS Preservation attribute enabled, an egress Service Frame resulting from an ingress Service Frame that contains a CE-VLAN CoS value will have the identical CE VLAN CoS value.

11.2.7 EVC Layer 2 Control Protocol Processing

In an EVPN EVC the Layer 2 Control Protocol Processing attribute can be set to either tunnel or discard. When tunnelling is enabled the frame will be carried across the Vodafone network without being processed and delivered to the proper UNI or UNI’s. The egress frame will be identical to the ingress frame when tunnelled.

11.2.8 CoS Identifier

A Class of Service (CoS) is a commitment by Vodafone to provide a defined level of performance to a set of Ethernet frames. For EVPN services there are four available CoS traffic classes. Each class has specified performance objectives that are described in the Service Level Agreement (SLA) for the service.

The CoS traffic class that applies to a Service Frame, is identified by a Class of Service Identifier (CoS ID) that is indicated by the content in one or more fields in the Service Frame.

There are three ways that may be used to determine the CoS ID from the content of an EVPN frame as follows:

a. Class of Service Identifier Based on EVC

b. In this case, all ingress Data Service Frames mapped to the EVC will be assigned the same Class of Service Identifier.

c. Class of Service Identifier Based on Priority Code Point Field

d. In this case, the Class of Service Identifier for an ingress Data Service Frame will be determined by the EVC and the value of the 802.1Q VLAN PCP field (i.e. CE-VLAN CoS).

e. Class of Service Identifier Based on DSCP

f. In this case, the Class of Service Identifier for an ingress Data Service Frame containing an IP packet in the payload will be determined by the EVC and the value of the DSCP field in the IP packet header.

11.2.9 EVC Related Performance

EVC Related performance attributes specify Service Frame delivery performance. For EVPN services there are four performance attributes that are used in SLA’s:

• Frame Delay (FD) – the time to deliver a frame from source to destination

• Inter Frame Delay Variation (IFDV) - the difference in delay of two Service Frames belonging to the same CoS


instance

• Frame Loss Ratio (FLR) - a measure of the number of lost frames between the ingress UNI and the egress UNI

• Availability - a measure of the percentage of time that a service is useable

Performance Attributes apply to “Qualified” Service Frames, which are frames that have an Ingress Bandwidth Profile compliance of Green and have the correct CoS ID.

11.2.10 EVC Maximum Transmission Unit Size

The EVC Maximum Transmission Unit size service attribute specifies the maximum Service Frame size (in bytes) allowed on the EVC.

The default EVC MTU Size for EVPN is 1526 bytes. Jumbo frames with payload field lengths larger than 1500 bytes are able to be supported with EVPN services. 2026 and 9126 byte UNI EVC MTU sizes can be supplied in some instances. Customers should check with solutions consultant to confirm availability prior to order.

Every UNI in the EVC must be capable of supporting the EVC MTU Service Frame size.

The EVC MTU size for each EVC at the UNI must be less than or equal to the UNI MTU size. An EVC may contain UNIs that don’t have equal MTU sizes


12 Appendix C - NID Technical Specifications3916 NID Specifications

Figure 32 – 3916 NID

Feature Specification

Power Rating AC System (Single or Dual Power

Input)

100-240 VAC, 50/60 Hz, 2 Amps

DC System (Single Power Input) +/-24 VDC or +/- 48 VDC, 2 Amps max

Power Consumption Maximum Power Consumption 38 W

Connector Types NNI / UNI Ports as follows:

Ports 1 to 4 speed is 100/1000 Mbps

Ports 5 and 6 speed is 1000 Mbps

SFP optics

UNI Ports as follows:

Ports 1 and 2 speed is 10/100/1000 Mbps

RJ-45

Console Port RJ-45 (EIA-561)

Physical Chassis Dimensions 4.4 cm H x 33.3 cm W x 20.1 cm D

(1.75 in H x 13.1 in W x 7.9 in D)

Rack Unit Height 1 RU

Weight (system and SFPs) 2.3 kg (5.1 pounds)

Environmental Ambient Operating Temperature Indoor locations and partially controlled environments 0C to +50C (32F to 122F)

Operating Humidity 5 - 90%, non-condensing

Table 40 – 3916 NID specifications


3902 NID Specifications



Power Rating AC Input Power External AC adapter with input voltages of 100V to 240V, 47 Hz to 63 Hz. Provides 5V DC at 2.5 Amps


Typical 5 W

Connector Types NNI Port (1 Gigabit) SFP optic

UNI Port (10/100/1000 Mbps) RJ-45


Physical Chassis Dimensions 3.1 cm H x 15.1 cm H x 15 cm D

(1.21 in H x 5.96 in H x 5.9 in D)

Form Factor Plastic clamshell

Mounting Options Desktop

Wallmount

Environmental Ambient Operating Temperature Indoor temperature controlled environments 0C to +40 C (32 F to 104 F)

Operating Humidity 15% to 85% non-condensing



Vodafone New Zealand Limited

3930 NID Specifications



Power Rating AC System (Single or Dual Power Input)

100-240 VAC, 50/60 Hz, 2 Amps

DC System (Single Power Input) +/-24 VDC or +/- 48 VDC, 2 Amps max


Connector Types NNI / UNI Ports as follows:

• Ports 1 to 4 speed is 100/1000 Mbps

• Ports 5 and 6 speed is 1000 Mbps

SFP optics

UNI Ports as follows:

• Ports 1 and 2 speed is 10/100/1000 Mbps

RJ-45


Physical Chassis Dimensions 4.4 cm H x 33.3 cm W x 20.1 cm D

(1.75 in H x 13.1 in W x 7.9 in D)

Rack Unit Height 1 RU

Weight (system and SFPs) 2.3 kg (5.1 pounds)

Environmental Ambient Operating Temperature Indoor locations and partially controlled environments 0C to +50C (32F to 122F)

Operating Humidity 5 - 90%, non-condensing


Wholesale Ethernet VPN Product Description · 5.7 Ethernet Private LAN (EPLAN) Service 21 5.8...

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