ITU-T Study Group 15ITU-T Study Group 15 Update for IEEE 802.1 Update for IEEE 802.1

Glenn Parsons gparsons@nortelnetworks.com

May 2003

Three Liaisons to IEEE 802.1 from ITU-T Study Group 15

Ethernet Activities in SG15Ethernet Activities in SG15

To MEF, OIF, IEEE 802.1, IEEE 802.3To MEF, OIF, IEEE 802.1, IEEE 802.3

Optical Transport Networks & Technologies Standardization WorkplanOptical Transport Networks & Technologies Standardization Workplan

To MEF, T1, IETF, TIA, OIF, IEEE 802, IEC, ATMFTo MEF, T1, IETF, TIA, OIF, IEEE 802, IEC, ATMF

Ethernet ServicesEthernet Services

To IEEE 802.1To IEEE 802.1

May 2003

Location of Relevant Information

Ethernet activities in SG15:Ethernet activities in SG15:

ITU-T LS15-23ITU-T LS15-23 January 2003January 2003

Optical Transport Networks & Technologies Standardization WorkplanOptical Transport Networks & Technologies Standardization Workplan

ITU-T LS15-49ITU-T LS15-49 January 2003January 2003

Ethernet Services in G.ethsrv: Ethernet Services in G.ethsrv:

ITU-T Q12/15 WD 70ITU-T Q12/15 WD 70 May 2003 (not yet sent)May 2003 (not yet sent)

ITU-T SG15 Liaisons and draft documentsITU-T SG15 Liaisons and draft documentsfftptp://sg15opticalt:://sg15opticalt:otxchangeotxchange@ftp.@ftp.ituitu..intint/tsg15opticaltransport/COMMUNICATIONS/index.html/tsg15opticaltransport/COMMUNICATIONS/index.html

May 2003

ITU-T Study Group 15Ethernet Activities

Working Party 1 – Question 2Working Party 1 – Question 2Network Access (Ethernet Access)Network Access (Ethernet Access) G.985G.985 100 Mb point-to-point Ethernet Access – Requirements & Architecture100 Mb point-to-point Ethernet Access – Requirements & Architecture G.cesG.ces Circuit Emulation Services over EthernetCircuit Emulation Services over Ethernet

SG 15 - Working Party 4 – Question 16 SG 15 - Working Party 4 – Question 16 OTN Technology (Ethernet over Fibre)OTN Technology (Ethernet over Fibre) G.cappG.capp CWDM Applications (including Ethernet)CWDM Applications (including Ethernet)

SG 15 - Working Party 5 - Questions 1 & 19SG 15 - Working Party 5 - Questions 1 & 19Projects and Promotion (Coordination)Projects and Promotion (Coordination) OTNT SWPOTNT SWP Optical Transport Networks and Technologies – Optical Transport Networks and Technologies –

Standardization Work PlanStandardization Work Plan ANT SWPANT SWP Access Network Transport – Standardization Work PlanAccess Network Transport – Standardization Work Plan

May 2003

ITU-T Study Group 15Ethernet Activities (contd)

Working Party 3Working Party 3OTN Structure (Ethernet over Transport)OTN Structure (Ethernet over Transport) G.ethnaG.ethna Ethernet Layer Network ArchitectureEthernet Layer Network Architecture Q12Q12 G.eotaG.eota Ethernet over Transport ArchitectureEthernet over Transport Architecture Q12Q12 G.esmG.esm Ethernet over Transport – Ethernet Service Multiplexing Ethernet over Transport – Ethernet Service Multiplexing Q12Q12 G.ethsrvG.ethsrv Ethernet over Transport – Ethernet Service CharacteristicsEthernet over Transport – Ethernet Service Characteristics Q12Q12 G.smcG.smc Service Management Channel – private line Service Management Channel – private line Q12Q12 G.etnniG.etnni Ethernet over Transport Network Node InterfaceEthernet over Transport Network Node Interface Q11Q11 G.euniG.euni Ethernet User to Network InterfaceEthernet User to Network Interface Q11Q11 G.eeqG.eeq Ethernet over transport Equipment Functional BlocksEthernet over transport Equipment Functional Blocks Q9Q9 G.eemfG.eemf Ethernet Equipment Management FunctionEthernet Equipment Management Function Q9Q9 G.efrwG.efrw Ethernet FrameworkEthernet Framework Q9Q9

May 2003

ContainsContains

list of standardization bodies relevant to optical standardization, list of standardization bodies relevant to optical standardization,

a list of known holes/overlaps/conflicts in current work, a list of known holes/overlaps/conflicts in current work,

lists of known Standards and Recommendationslists of known Standards and Recommendations

a list of documents being actively workeda list of documents being actively worked

Under studyUnder study

Description of ‘Ethernet over Transport’Description of ‘Ethernet over Transport’

OTNT Standardization Workplanhttp://www.itu.int/ITU-T/studygroups/com15/otn/index.html

May 2003

ITU-T Q12/15 G.exxx draft Recs.

Customer Services(e.g., MEF)

Network Services(G.ethsrv)

XYZ transport(G.esm)

TDM transport(G.eota) M

anag

emen

t c

hann

el(G

.sm

c)

Eth

erne

t Lay

er A

rchi

tect

ure

(G.e

thna

)

May 2003

Q12/15 G.exxx draft RecsConsent October 2003

G.ethnaG.872

G.803

MEF Services

G.ethsrv

G.eota

May 2003

Next steps for G.exxx series G.ethna, G.ethsrv, G.eotaG.ethna, G.ethsrv, G.eota

Editors will clean up and post new versions by June 10Editors will clean up and post new versions by June 10 thth

Submit as ITU-T SG15 White contribution by August 1Submit as ITU-T SG15 White contribution by August 1stst.. Discuss open issues by correspondenceDiscuss open issues by correspondence Contributions to next meeting to propose final textContributions to next meeting to propose final text Consent at October SG15 meetingConsent at October SG15 meeting

G.esm, G.smcG.esm, G.smc Contributions expectedContributions expected Discussion at October SG15 meetingDiscussion at October SG15 meeting

G.etnni, G.euni, G.eeqG.etnni, G.euni, G.eeq Contributions expectedContributions expected Discussion at October SG15 meetingDiscussion at October SG15 meeting

May 2003

Ethernet Network Architecture - G.ethna

Describes the functional architecture of Ethernet public networks Describes the functional architecture of Ethernet public networks using the modeling methodology described in ITU-T Rec. G.805 and using the modeling methodology described in ITU-T Rec. G.805 and G.809. (G.803, G.872 equivalent for Ethernet) G.809. (G.803, G.872 equivalent for Ethernet)

It defines high-level atomic functions. These atomic functions have to It defines high-level atomic functions. These atomic functions have to be further specified in the equipment specifications.be further specified in the equipment specifications.

The bases for this first version of the recommendation are the Ethernet The bases for this first version of the recommendation are the Ethernet specifications in IEEE 802.1D, 802.1Q and 802.3. specifications in IEEE 802.1D, 802.1Q and 802.3.

May 2003

ETH

ETH Link

ETH LF

ETH Link

ETH LF

ETH

ETH_AP

ETH_TFP

ETH FDF ETH FDF ETH FDF

ETH_AP

ETH_TFP

ETH_FP ETH_FP ETH_FP ETH_FP

ETH FD ETH FDETH FD

ETH Trail

Ethernet MAC (ETH) layer network

AP - access pointFD - flow domainFDF - flow domain flowFP - flow pointLF - link flowTFP - termination flow point

May 2003

ETYn ETYn

ETYn_AP

ETYn_TCP

ETYn_AP

ETYn_TCP

ETYn NC and ETYn LC

ETYn Trail

Ethernet PHY (ETY) layer network

AP - access pointNC - network connectionLC - link connectionTCP - termination connection point‘n’ in ETYn - represents interface types

May 2003

ETCn

ETCn/ETH

ETYn/ETCn

ET

Yn

/ET

H

ETY/ETH Adaptation

ETH - Ethernet MACETC - Ethernet codingETY - Ethernet PHY ‘n’ suffix - represents interface types

May 2003

Ethernet Services - G.ethsrv

Defines a set of Ethernet service characteristics that are supported by Defines a set of Ethernet service characteristics that are supported by the common architecture model of G.ethnathe common architecture model of G.ethna

Describes Ethernet services from the Describes Ethernet services from the network point of view network point of view (as (as opposed to the opposed to the customer view customer view of the MEF)of the MEF)

The services should describe the characteristics of the services, The services should describe the characteristics of the services, without referring to a particular network technology.without referring to a particular network technology.

This document contains:This document contains: 1. Ethernet services1. Ethernet services 2. Network architecture topology description required to support 2. Network architecture topology description required to support

these servicesthese services

May 2003

Definitions Private servicePrivate service

One or more ETH links within the transport network are allocated to transport the ETH_CI of a single customer’s service instance.

The ETH_CI in a private service either doesn’t compete for bandwidth

Virtual private serviceVirtual private service One or more ETH links within the transport network are allocated

to transport the ETH_CI of multiple service instances The ETH_CI in a virtual private service competes for bandwidth

with ETH_CI from another service instance of the network

May 2003

Definitions Line serviceLine service

One ETH link within the transport network is allocated to transport the ETH_CI of one customer service instance, between at most two flow points.

No additional ETH links can be added to the service

LAN serviceLAN service One (or more) ETH link(s) within the transport network is

allocated to transport the ETH_CI of one customer, between at least two flow points.

Additional ETH links can be added/deleted to/from this service

May 2003

Ethernet Services

Ethernet Private Line (EPL)Ethernet Private Line (EPL) Only this service will be fully described in the first versionOnly this service will be fully described in the first version

Ethernet Virtual Private Line (EVPL)Ethernet Virtual Private Line (EVPL) Ethernet Private LAN (EPLan)Ethernet Private LAN (EPLan) Ethernet Virtual Private LAN (EVPLan)

May 2003

Ethernet Service Attributes Multiplexed AccessMultiplexed Access

Yes, NoYes, No Interface typeInterface type

10BASE, 100 BASE, 1000BASE, 10GBASE-R10BASE, 100 BASE, 1000BASE, 10GBASE-R MAC learningMAC learning

Yes, NoYes, No Traffic ProfileTraffic Profile

CIR, PIR, PBSCIR, PIR, PBS PolicingPolicing

Drop, PAUSEDrop, PAUSE L2 Control Plane ProcessingL2 Control Plane Processing

Process, Discard, TunnelProcess, Discard, Tunnel

May 2003

Summary of Ethernet ServicesEthernetService

ServiceConfigur-ation

MultiplexedAccessAllowed

Characteristic Information

MACaddresslearning

Bandwidthsharing

Transport

Type 1 No Frame Notneeded

No CO-CSEPL

Type 2 No Character Notneeded

No CO-CS

EVPL - Yes Frame Notneeded

Yes CO-PS orCO-CS

EPLAN - No Frame Required No CL-PS,may useCO-CS

EVPLAN - Yes Frame Required Yes CL-PS,may useCO-CS orCO-PS

May 2003

EPL type 1

802.3802.3 CO-CSCustomer Equipment

Customer Equipment

Carrier Equipment

Carrier Equipment

CI = (un)tagged MAC frame stream

802.3x PAUSE

Carrier Network

PhIR1 PhIR2NRoS

CustomerNetwork

802.3x PAUSE

PBS1 PBS2

CIR

802.3802.3 SDHSDHOTNOTNCarrierCarrier

Equipment

LAN(NAP)

WAN(NP)

P2P1

May 2003

EPL type 1 - G.805 model

ETY/ETH ETY/ETH xx /ETH xx /ETH ETY/ETH ETY/ETH

UNI UNI

May 2003

G.ethsrv ‘living list’ EPLAN service characteristics EVPL service characteristics EVPLAN service characteristics Multiplexed Access Rate control (using PAUSE) Service Provider Ethernet MAC filtering Ethernet OAM Ethernet Service Management

May 2003

Defines the assembly of G.ethna layer networks to satisfy the Defines the assembly of G.ethna layer networks to satisfy the requirements defined in G.ethsrv, using particular atomic functions. requirements defined in G.ethsrv, using particular atomic functions.

Contains mainly functional models describing these implementations. Contains mainly functional models describing these implementations. Particular attention given to describing architectures using multiple Particular attention given to describing architectures using multiple transport technologies. transport technologies.

The first version of this recommendation specifies the EoT The first version of this recommendation specifies the EoT architecture for point to point Ethernet Private Line services.architecture for point to point Ethernet Private Line services. G.eota.1 point to point PL, G.eota.2 Private LAN,G.eota.3 G.eota.1 point to point PL, G.eota.2 Private LAN,G.eota.3

VPLAN…..VPLAN….. Protocol and equipment specifications will be in separate Protocol and equipment specifications will be in separate

Recomendations (e.g., G.eeq)Recomendations (e.g., G.eeq)

Ethernet over Transport - G.eota

May 2003

EPL type 1 - SDH architecture

SnSn

Sn-Xv/Sn-X-L

Sn-X-L

Sn-X-l/ETH

Sn

Sn

1 23 XMAX

ETYn

ETYn/ETH

SDHNetwork

GFP-F or LAPSencapsulation

VCXLCAS

SnSn

Sn-Xv/Sn-X-L

Sn-X-L

Sn-X-l/ETH

Sn

Sn

12 3 XMAX

ETYn

ETYn/ETHGFP-F or LAPSencapsulation

VCXLCAS

EthernetPhysicalInterface

ETYn_CI ETY_CI EthernetPhysicalInterface

connects XPROV VC-n TCPs in TCP Group Awith XPROV VC-n TCPs in TCP Group Z (XPROV XMAX )

ETH_CI ETH_CI

VC-n TCPGroup A

VC-n TCP Group Z

VC-n Sub Network

Note - The XPROV VC-n Network Connections are between VC-n TCP A[i] and VC-n TCP Z[j], with 1 i XMAX , 1 j XMAX ; e.g. A[1] Z[1], A[3] Z[2]

May 2003

Describes a new layer network architecture supporting Describes a new layer network architecture supporting Ethernet services multiplexing over transport networks. Ethernet services multiplexing over transport networks.

Requirement driven by services of G.ethsrvRequirement driven by services of G.ethsrv Two parts: Two parts:

functional and structural architecture of a Service functional and structural architecture of a Service Multiplexing Layer Network (was ‘XYZ layer’)Multiplexing Layer Network (was ‘XYZ layer’)

adaptation of Ethernet services, as defined by G.ethsrv, adaptation of Ethernet services, as defined by G.ethsrv, to this Layer Network.to this Layer Network.

Ethernet Services Multiplexing - G.esm

May 2003

G.esm ‘living list’ Do we need a new layer architecture at all?Do we need a new layer architecture at all? Review the new requirementsReview the new requirements Candidate technologies under study:Candidate technologies under study:

MPLSMPLS Service Provider Ethernet (MAC-in-MAC)Service Provider Ethernet (MAC-in-MAC) GFP service multiplexing (Switched GFP-F)GFP service multiplexing (Switched GFP-F)

May 2003

Defines a common architecture supporting management of Defines a common architecture supporting management of Client Private Line Services (e.g., private line DSn/En, Client Private Line Services (e.g., private line DSn/En, Ethernet and/or Storage). Ethernet and/or Storage).

Defines, from the service network view, management of Defines, from the service network view, management of the data service from edge to edge of the transport the data service from edge to edge of the transport network, including the formats and protocols that are network, including the formats and protocols that are needed to perform the management tasks.needed to perform the management tasks.

Defines the management parameters and the formats and Defines the management parameters and the formats and protocols that are needed to perform the management protocols that are needed to perform the management tasks.tasks.

Service Management Channel- G.smc

May 2003

SMC using POH

ETY

ETY/ETH

Sn-Xv/Enc

Sn-Xv

Enc/ETH

Enc

Sn-Xv/Sn-X

Sn-X

12

X

..Sn-X

ETY

ETY/ETH

Enc/Sn-Xv

Sn-Xv

ETH/Enc

Enc

Sn-Xv/Sn-X

Sn-X

Sn-X

12

X

..

SNC A SNC B

NMS

SnSMC/Sn

SnSMC

CPESP_A’s NE

SP_B’s EdgeNE

SP_B’sNMSNE

NNI

N/W A N/W B

SLA SLA

CPESP_B’s

CLE NE

Access SNC

SMC [POH] inserted here (can be either

GFP or LAPS)

May 2003

Requests to IEEE 802.1

Invite comments and input to progress the Ethernet over Transport Invite comments and input to progress the Ethernet over Transport

workwork

Request comparison of SG15 work to IEEE 802.1 workRequest comparison of SG15 work to IEEE 802.1 work

Invite comments on Standardization work planInvite comments on Standardization work plan

Request specific review of G.ethsrv Ethernet service ‘L2 control frame Request specific review of G.ethsrv Ethernet service ‘L2 control frame

processing’ attributeprocessing’ attribute