© 2006 Turin Networks, Inc. All Rights Reserved1

Building the Next-Generation Converged Services Infrastructure

Ralph Santitoro Director of Product Line ManagementRalph@Marcom-Services.net

24 October 2006

© 2006 Turin Networks, Inc. All Rights Reserved2

What problem are you trying to solve?

All Services over a Common Network Infrastructure

All services over an Ethernet Transport Network

Network needs to support Ethernet services and TDM services

Different ways to implement – each having pros and cons

Different approaches to take Different approaches to take depending upon which problem you depending upon which problem you

want to solve want to solve

Converged Services Infrastructure

© 2006 Turin Networks, Inc. All Rights Reserved3

Converged Transport Technology Choices

IEEE 802.1ad (Provider Bridges / QinQ)

IEEE 802.1ah (Provider Backbone Bridges)

Provider Backbone Transport (PBT)

Ethernet over SONET/SDH

Ethernet over MPLS (Pseudo wires)

© 2006 Turin Networks, Inc. All Rights Reserved4

Converged Transport Technology Choices- Ethernet Transport

IEEE 802.1ad (Provider Bridges / QinQ)Most commonly implemented Ethernet service delivery technology

S-VLAN ID (S-VID) used to identify 4095 services

Uses customer’s MAC address for forwarding

RSTP or MSTP for protection/restoration

IEEE 802.1ah (Provider Backbone Bridges)I-SID used to identify 16M services

B-VLAN ID (B-VID) used to identify backbone tunnel

RSTP or MSTP for protection/restoration

Provider Backbone Transport (PBT)Backbone tunnels (working and protected) identified via globally unique 60 bit B-VID+Destination MAC address

Can use GMPLS to pre-provision protected tunnel

Disables Ethernet control plane (BPDUs)

Can use GMPLS (g-LSPs) as control plane for simplified tunnel provisioningRSVP-TE for CAC for deterministic QoS and BW management

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Converged Transport Technology Choices- SONET/SDH Transport

Uses 802.1ad (S-VID) or 802.1ah (I-SID) for service identification

Uses VCAT and LCAS for bandwidth on demand

Dynamic resizing of SONET/SDH VC containers

Can use RSTP/MSTP or SONET/SDH APS for protectionCan use GMPLS to pre-provision or calculate protected path/tunnel

Uses GMPLS (g-LSPs) as control plane for simplified end-to-end path/tunnel provisioning

RSVP-TE for CAC for Ethernet packet services for deterministic QoS and BW management

Simultaneously supports TDM services

MSPPs today support Switched Ethernet and EPL Services over SONET/SDHMSPPs today support Switched Ethernet and EPL Services over SONET/SDH

GMPLS provides the common control plane for Ethernet and TDM servicesGMPLS provides the common control plane for Ethernet and TDM services

© 2006 Turin Networks, Inc. All Rights Reserved6

Service Types and RequirementsA look at the services and converged infrastructure

performance requirements

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Converged Services Transport

Business, Government, Business, Government, EducationEducation

E-Line (EPL, EVPL), E-LAN, TDM Voice and Private Lines ResidentialResidential

Triple-PlayTriple-Play

Ethernet P2P and P2MP Ethernet Virtual Connections (EVCs)

ISP

TSP

VSP

WirelessWirelessBackhaulBackhaul

DS1s/E1sand

PDHoE(PWE/CESoP)

WSP

Converged Services Transport

Network

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Services to support over Converged Transport Network – Residential Services

Unicast Services

Telephone service

Internet Access (Basic/Premium HS)

Per View VoD

Network-based Personal Video Recorder

Multicast Services

IPTV (Standard and High Definition)

IPTV and VoD are all about ‘total user control’IPTV and VoD are all about ‘total user control’

© 2006 Turin Networks, Inc. All Rights Reserved9

Transport Network Topology Considerations for Triple Play Services

Internet Access and VoIPEach subscriber has unicast stream to ISP and TSP, respectively

Video on Demand (VoD)/Movies on Demand (MoD)Each viewer watches different “personalized” unicast video stream

Metro network needs bandwidth for each unique VoD stream

P2P or Tree-based network topology are optimal

Broadcast IPTVMany viewers watch live multicast video streams simultaneously

Metro transport network needs to replicate the multicast TV stream

Ring or Tree-based based network topologies are optimal

only one copy of TV stream (channel) need be sent

If offering IPTV plus other Triple Play services, If offering IPTV plus other Triple Play services, Ring or Tree topologies are best suitedRing or Tree topologies are best suited

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Access Multiplexer(CMTS, PON,

DSLAM or Power Line Head End)

ISP

VSP (VoD/MoD)

TSP

VSP)IPTV(

IPTV Service

P2MP EVCs

Telephony ServiceInternet Access ServiceVoD/MoD Service

P2P EVCs

Triple Play Service Transport Options

802.1Q VLAN ID can identify subscriber or service

If typical customer subscribes to 3 to 5 services

802.1Q VLAN ID would support ~800 subscribers per Access Mux

DSL, PON, HFC Power line 802.1Q

802.1ad (QinQ)

802.1ah/PBT B-VLAN,MPLS LSP orGMPLS g-LSP

PBB/PBT, MPLS or

SONET/SDH

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Services to support over Converged Transport Network – Business, Govt. and Education Services

Ethernet Private Line and Ethernet Internet Access

“Pipe service” most commonly implemented over SONET/SDH

Ethernet VPNs

EVPL and E-LAN

Can implement over Ethernet, MPLS and SONET/SDH

Legacy services

PBX PRI Trunks

T1/E1 Private Lines

Require PDHoE to implement over Ethernet or MPLS

Transported unaltered over SONET/SDH

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Converged Services Transport – Wireless Backhaul Requirements

Cell site traffic backhauled via DS1s and E1sTransport network bundles TDM circuits into SONET/SDH hierarchy

Cell sites migrating to Ethernet to lower TDM backhaul costsCell site PDH output converted to Ethernet (PDHoE) by CPE deviceTransport network transports TDM pseudo wire to MSPPMSPP decomposes pseudo wire back into TDM circuits

Business Case is compelling6 DS1s per cell site @ $500/month/DS1 = $36K/year per cell siteReplace with 10Mbps Ethernet service @ ~$800/month = $9.6K/year

WirelessWirelessBackhaulBackhaul

DS1/E1

and

PDHoE(PWE/CESoP)

PSTN

Internet

MSPPConverged

Services Transport Network

(SONET/SDH, Ethernet or MPLS)

WSP

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Multiservice Transport Network Service Management Requirements

Fault Isolation

Need to determine if the fault is in the Ethernet Service Layer or Transport Layer

Need to be able to troubleshoot:

Ethernet Service, end to end (Service Continuity Check)

End-to-end path and local interconnections

QoS Performance Monitoring (PM)

Need to measure/report at service level and transport level:

Delay, Delay Variation and Loss

Goodput and Throughput

Required for Service Level Objectives specified in SLA

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Converged Services Transport Technology “Magic Quadrant”

So

me

Man

y

Dep

loym

ents

Technology Maturity

Early Stages MaturePBT(GMPLS) PBB

EoMPLS(PWE)

EoS/EoSDH (VCAT/LCAS/GMPLS)

Potential

PB(QinQ)

© 2006 Turin Networks, Inc. All Rights Reserved15

Summary

Several Technology Choices for converged services infrastructure

The technology choice depends upon your service mix today and how it is changing

Ethernet is becoming the ubiquitous service delivery technology

Ethernet as a networking technology

Dominates the LAN, metro aggregation and many metro core networks

Many obstacles to overcome before it can dominate long haul and first mile networks

© 2006 Turin Networks, Inc. All Rights Reserved16

Turin Networks is a supplier of packet optimized multiservice switching platforms.

Turin has helped more than 300 customers worldwide transition their SONET/SDH networks to high growth Ethernet E-Line, E-LAN and Triple Play services over a multiservice converged transport infrastructure.