OIF Challenges: Enabling Broadband On-Demand Services

iPOP2009, Tokyo, Japan

OIF Challenges: Enabling Broadband On-Demand Services


Agenda

• Service Drivers, Challenges and Transformations in Network Infrastructure

• OIF Development and Test of Interoperable Networking Solutions

• OIF 2009 Worldwide Interoperability Demonstration


Service Drivers, Challenges and Transformations in Network Infrastructure


Service Drivers and Challenges

• Users demanding lower cost, converged and personalized services– Broadband services with high performance, feature

richness, dynamic control and reliability

• Complexity in networks, services, vendors and markets

• Increasing network diversity in:– Industry standards– Carrier models– Product architectures

• Need for vendor innovation while preserving interoperability


Optical Network TransformationA Work in Progress

Data

Cap

acit

yFeatu

re r

ich

ness

SONET/SDH ringsDCS

WDM pt-to-pt

SONET/SDH ringsDCS

WDM pt-to-pt

Past Future

Key drivers• Capacity• Performance• Reliability

Key drivers• Service assurance• Bandwidth

optimization• Automation

Key drivers• Convergence• Operational

efficiency• Availability

NG-SONET/SDH ASON/GMPLS

ROADM

NG-SONET/SDH ASON/GMPLS

ROADM

Transparent photonicsTransparent photonics

Today

Packet-basedTransport

Packet-basedTransport

ASON/GMPLSASON/GMPLS

Tunable ROADMTunable ROADM OTNOTN

Much attention is on emerging technology, yet carriers must deliver services over diverse networks based on legacy, contemporary and cutting edge technologies.

There is no universal convergence layer or technology that meets everyone’s requirements


ASON Architecture and OIF IAs

• ASON architecture addresses the transport network evolution– Heterogeneous network topologies, technologies, and applications– Diverse internal control plane protocols, including management-based– Separation of transport and control planes

• OIF complements the work of optical standards bodies– Implementation Agreements (IAs) based on standards– Interoperability testing and prototyping of solutions

Domain CDomain A Domain B

NE

NENE

NENE NE NENE

UNI E-NNI UNIE-NNIClient ClientControl

plane

Transport plane

• Each domain can use either management or control plane internally• Control plane topology can differ from transport plane topology

• Transport technology and topology can differ in each domain

NM

DCN DCN

Management plane

NE NE

NE

NE


OIF Development and Test of Interoperable Networking Solutions


OIF UNI and E-NNI Development

Signaling Specifications and Features

UNI 1.0r2

2004

UNI 2.0

2008

E-NNI 1.0

2004

E-NNI 2.0

2009

Connection Types SONET/SDH High Order √ √ √ √

SONET/SDH Low Order √ √

OTN (ODUk, OCh) √ √

Ethernet (EPL) √ *

Ethernet (EVPL) √ *

Connection Services

Connection Setup/Teardown √ √ √ √

Call Control √ √ √

Non-Disruptive Modification √ √

* E-NNI does not directly support Ethernet bearer interfaces but can carry Ethernet services adapted into SONET/SDH or OTN signals


Control Plane EvolutionExtending the Control Plane for Emerging Technologies

Transport TechnologySwitched

EntityKey Features & Technologies

Remaining Challenges

Layer 2 (Packet –

MPLS-based/PBB/PBB-TE)Packets

Packet-based, connection-oriented, L2

transport tunnels

Tailoring MPLS for connection-oriented

operation

Layer 1 (TDM – OTN/ODUk) Time SlotsOptical/TDM switching at

10/40/100G rates

Definition of OTU-4, ODU-4 (100G+ OTN

container)

Layer 0 (Lambda – OTN/OCh/WSON)

Wavelengths

Photonic switching (multidegree,

directionless, colorless ROADM/TOADM/WSS)

continuity, physical impairments, scalability

L0-LambdaOTN/OCh/WSON

L2-PacketMPLS-based/PBB/

PBB-TEL1-TDM

OTN/ODUk

L1-TDMSONET/SDH


OIF Multi-layer Control Plane ModelGeneric Technology Layers with Recursion

• Edge nodes typically provide layer adaptation and multi-layer control plane. Core nodes typically operate in single server layer

• Supports non-disruptive modification (BW or VLAN IDs) to meet varied demands of client while in-service• Versatile – supports only layers needed (e.g Eth-VCAT-SDH, packet over WDM) yet supports multiple

layer adaptations– Server layer call/connection signaling flow completes before client layer

Domain C

UNI E-NNI UNI

Domain A Domain B

E-NNINE NE NE NE NE NE

Client Client

Service Layer N Call/Connection Flow (e.g. IP, Ethernet)

Transport Layer N-1 Call/Connection Flow (e.g. SDH)

Transport Layer N-2 Call/Connection Flow (e.g. OTN)


OIF Multi-layer Control Plane ExampleEthernet Services over Connection-Oriented Packet Transport

Domain C

UNI E-NNI UNI

Domain A Domain B

E-NNINE NE NE NE NE NE

Client Client

Client Ethernet Layer Call

Provider Bridge Layer Call

Packet Transport Layer Call (e.g. MPLS-based, PBB-TE)

Provider VLAN

Ethernet Virtual Circuit (EVC)

Control Plane Layering

Transport Plane Layering

L2 Tunnel


OIF 2009 Worldwide Interoperability Demonstration


Putting the Pieces TogetherOIF Implementation Agreements and Interoperability Demos

OIF Implementation Agreements

UNI 1.0 signalingUNI 1.0r2 signalingE-NNI 1.0 signaling E-NNI 1.0 routing

UNI 2.0 signaling

2001 2002 2003 2004 2005 2006 2007

OIF Networking Interoperability Demonstrations

Lab Location

Trade Show

New Capabilitie

s Tested

UNH

SUPERCOMM

Draft UNI 1.0

UNH

OFCDraft E-

NNI signaling & routing

Global – 7 carriers

SUPERCOMMCP-enabled

SONET/ SDH data plane

Ethernet over SONET/SDH data plane-only test (GFP/VCAT/LCAS)


SUPERCOMMDraft

extensions for CP-enabled EPL

Data plane-only test of EVPL and ELAN


ECOCEPL services via

pre-IA UNI 2.0 and E-NNI 2.0 over SONET/SDH transport layers

CP failure recovery

BW modificationCP neighbor

discovery

2008 2009

E-NNI 2.0 signaling


Worldwide InteropEVPL services via

UNI 2.0 and E-NNI 2.0 over diverse transport layers

• Packet (PBB-TE and MPLS-based)

• SONET/SDH• OTNCP-based

restoration

ASON/GMPLS Interworking


OIF Global Topology 2009

USA Europe Asia

Verizon

CienaMarben Products

SycamoreTellabs

ZTE

TelecomItalia

KDDIDeutscheTelekom

NTT

Alcatel-LucentCiena

EricssonMarben Products

Alcatel-LucentEricssonTellabs

Alcatel-LucentCiena

EricssonMarben ProductsNEC Corporation

of America

Alcatel-LucentMarben ProductsNEC Corporation

of America

Alcatel-LucentHuawei

ZTE

Alcatel-LucentCiena

HuaweiMarben ProductsNokia Siemens

Networks

ChinaTelecom

Orangs Labs


OIF 2009 Worldwide Demonstration FeaturesHigh Level Technical Objectives

• EVPL over diverse transport technologies• End-end domain-based service restoration• Simultaneous control plane and data plane testing• Wide range of signal formats and data rates• Switched connections (with UNI-C) and soft permanent

connections (no UNI-C, triggered by management device)• Connections set up over both pre-provisioned and dynamically

established server layer trails• Graceful and forced teardown• Vendor I-NNI interworking with UNI 2.0 and E-NNI 2.0• Test buildup from lab-local to regional to global scope


OIF 2009 Worldwide Demonstration FeaturesExamples of Detailed Technical Objectives

• EVPL over connection-oriented packet transport– Uni- and bi-directional connections– EPL, EVPL type 1, 2, 3 and E-tree– Packet-based forwarding, multiplexing, QoS, OAM and protection (both

failure-induced and user-initiated)

• Restoration– Triggers: node failure, inter/intra domain link failure, user command– E-NNI based restoration flow using upstream Notify message and make-

before-break process– Intra-domain or end-end multi-domain restoration– Failed resource identification to support diverse restoration– Signaling to coordinate traffic roll between working and protection paths


OIF Worldwide Interoperability Model

OIF IAs, Industry Standards

Vendor Equipment

Carrier Lab Resources

Global SCN

Operational Experience

Technology Maturity

Lessons Learned

OIF Worldwide Interoperability Demonstrations


Thank You

Please visit the OIF booth for more information and a live demonstration (booth 102)

OIF Challenges: Enabling Broadband On-Demand Services

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