Next Generation Networks – delivering competitive advantageNeil McArthurChairman, TalkTalk Technology

Agenda

What’s an NGNOur NGNThe significance of EthernetThe importance of QoSOpals Network based SIP developmentManaging Legacy to NGN migrationAssurance.

What is an NGN?

Multi-service network

QoS enabled

End to end IP based network

Separation of conveyance and service control (network intelligence) functions/applications

Ability to build new services without changing the network infrastructure

NGNs speed up innovation

Slide 4

PSTNLine Card

DSLAM

CATV

Ethernet switch

ATM / IP

SDH / Etherne

t

NTE / Customer access device

Access Network

Aggregation Node

Backhaul Network

Network Edge

IN platfor

m

Base Station

PSTNV-HLRGMSC

webe-mails

Video server

Core Network

ASP / datacentr

e

Phone

PC

TV

Mobile

Officepremises

Conveyance Applications

Network Intelligence

Ofcom

Current architecture

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Slide 5

IP / MPLS

MSAN

Ethernet switch

WDM / Etherne

t

NTE / Customer access device

Access Network

Backhaul Network

Network Edge &

Core

Base Station

Network Intelligenc

e

Phone

PC

TV

Mobile

Officepremises

Voice

Webe-mails

Video server

ASP / datacentr

e

Games

ConveyanceNetwork

Intelligence

Aggregation Node

Applications

Ofcom

NGN architecture

What does our NGN look like?

Core network two 400 Gig fibre rings around the main population centres. 47 core POPs

800 Gig Supercore fibre network around greater London taking in all the Telehouses and main carriers

Layer 1 & 2, access network building to 2000 exchanges

Exchange MSANs copper and fibre, supporting Residential, SOHO and SME services

Hierarchical QoS enabled network hence supporting voice and data services

Index

Core Network800Gb400Gb10Gb

DWDM Nodes (Optical connectors)

Collector Nodes

Unbundled Exchanges

Fig 3

Covers over 80% of businesses – 2.1 million business premises

Commitment to increase to 2,000 exchanges for both MPF and SMPF by end 2010 85% coverage of businesses

Ethernet termination at 1,300 exchanges in 2010

But, we still have one of these to run

BT Shrewsbury

BT Salisbury

BT Bristol

GLASGOWPOP

BRISTOLPOPBT Cardiff

Derby POP

M/C 2

LON 2 LON 1

M/C 1

LEICESTERPOP

SHEFFIELD POP

STOKEPOP

B'HAM

BT Manchester

BT Slough

BT Guildford

CHELMSFORDPOP BT

Chelmsford

CAMBRIDGEPOP

BT Norwich

BTSouthampton

GLOUCESTERPOP

BT Wolverhampton

CLYDE VALLEY

BT Warrington

BT Liverpool

BT Cardiff

BT Ealing

BT Colindale

BT Kingston

BT Croydon BT Maidstone

OTHERCARRIERS

BT Ipswich

BT WoodGreen

BT Peterborough

BT Baynard

BT N.Paddington

BT Luton

BT Glasgow

BT Clyde Valley

BT Gloucester

BT Cambridge

BT Swindon

SWINDONPOPEXETER

POP

BT Reading

READING POP

ALDERSHOTPOP

MAIDSTONEPOP

NEWCASTLEPOP

BT Bolton

EDINBURGHPOP

BT Preston

OTHERCARRIERS

BT Chester

BT Bournemouth

PRESTONPOP

BT Edinburgh

OXFORDPOP

BT Exeter

BT Oxford

PORTSMOUTHPOP

SOUTHAMPTONPOP

BT Coventry

BT Reditch

DARLINGTONPOP

BRADFORD POP

BT Southbank

BT Eltham

LEEDS POP

BISHOPS STORTFORD

POP

TUNBRIDGE WELLS

POP

BRIGHTON POP

BT Portsmouth

OTHERCARRIERS

CARDIFFPOP

BT Birmingham

BT Aldershot

Milton Keynes

POP

BT Milton Keyenes

CARLISLEPOP

PLYMOUTHPOP

IPSWICHPOP

NORWICHPOP

NORTHAMPTONPOP

BT ROMFORD

BT WATFORD

BT POTTERS

BAR

BT ESHER

SWANSEAPOP BT

NEWPORT

BT TAUNTON

BT Dundee

BT Aberdeen

BT Brighton

BT Tunbridge

Wells

BT Swansea

BT Plymouth

BT Medway

BT Tower

BT Ilford

BT Sheffield

BT Northampton

BT Bishops Stortford

BT Derby

BT Leeds

BT Bradford

PETERBOROUGHPOP

BT Stoke

BT Leicester

BT Nottingham

BT Middlesborough

BT Newcastle

BT Sunderland

BT Darlington

DUNDEEPOP

ABERDEENPOP

INVERNESSPOP

BT Inverness

BT Carlisle

BELFAST POP

BT BELFAST

TALKTALK TECHNOLOGY

BT INTERCONNECT

NETWORK

MPF

MPF

EthernetBackhaul

High Level View of Opal NGN and TDM Networks

MSAN

MSAN

TDM Switches

TDM Switches

TDM Switches

ASX Switches

ASX Switches

ASX Switches

IP/TDM Transit

TDM

GSX Switches

GSX Switches

Opal NGN

Manchester

BirminghamLondon

Fig 1

Impact of Ethernet

Source: Analysis Research, 2007

The significance of Ethernet Has become the established standard for network

interconnectivity, at work and in the home

A disruptive technology, replacing Frame Relay, ATM, E1,Token ring etc

Can be delivered cost effectively across large scale NGNs

Not distance dependant and highly scalable

End to end standards based, meaning compatibility

Creates another telecoms inflection point

Three phases of Carrier Ethernet

E-LAN, E-Line, E-Tree services P2P, P2MP, MP2MP Metro and national Ethernet Layer 2 Access circuits to MPLS 10/100/1000Mbps fibre access, with resilience options Incremental, flexible service bandwidths/internet over Ethernet option Aim to be MEF 9 and 14 compliant

Standard Ethernet

Phase 1

EFM/NGAEthernet over

copper

Phase 3

Enhanced Ethernet

Phase 2

3Mbps-40Mbps service bandwidths over copper To be included in Ethernet and MPLS services Option for a lower-cost alternative / different SLA

EOAM 802.1ah - end to end QoS management and reporting Remote diagnostics capability, enhanced alarm functionality resulting in better SLA, reduced downtime, greater visibility of service performance Bandwidth profiling Burstable bandwidth option

Tactical and Strategic EthernetEthernetPhase

Product Offered Access medium Demarcation of service

Opal/Reseller Tools

Tactical

Wholesale implementation of:

IPVPN AccessP2P EthernetP2MP Ethernet

Fibre only Local ExchangePricing

Strategic

Wholesale and managed variants of:

IPVPN AccessP2P EthernetP2MP EthernetM2MP Ethernet

Fibre

Copper

Local Exchange

Customer Premises

PricingOrderingReportingService changes

QoS enabled network QoS is the differentiator on NGN service delivery.

Network supports Hierarchical QoS in the core, edge and access

QoS Protocols - MPLS, COS, DiffServ

Precision Time Protocols. IEEE 1588v2

Layer 2 Ethernet OAM, ITU 1731

Layer 3 IPSLA

Opal’s SIP development Our NGN already carries 1.5Billion minutes of VoIP traffic

month

So where are the network based SIP products?

Connectivity is key in the SIP business

Functionality around In/ Outbound Centrex- Featureline services IVR services Number portability

Voice Solution Overview

1 – 6 Channels

ADSL

Annex M

EFM

Ethernet

VoicemailDDI

Extension DiallingPresentation Number

Hunt Groups CLIP / CLIR

Caller DisplayCall DiversionCall Pick-Up

Call HoldCall TransferCall Barring

IVR

Data Capture

REPLAY

Call Queuing

AutoAttendant

Call Ratio

7 – 15 Channels

16 – 30 Channels

30 + Channels

Customer AccessNetwork Hosted

Featureset

SIP

SIP / CES

Network Value AddsTransport

Access to suit customer requirements Customer has transport choice Network Hosted Features as standard Up Sell to Network Value Adds

Managing TDM to NGN migration Leave the choice to the customer.

Our view is we should accept voice traffic into the NGN either as TDM or IP. For both PSTN and ISDN.

Customers migrating to IP PBX may send traffic direct as IP over DSL or Ethernet.

Customers retaining TDM PBX may send traffic to the NGN over Ethernet using Circuit Emulation. Traffic is carried into the core of the NGN and broken out into

conventional TDM trunk exchanges. This avoids building out TDM/SDH network out to exchanges.

No 1 in Copper Assurance

Investment of over £5M on copper loop testing Openreach accept our fault data Proactive fault management

Fastest average speeds over copper in the UK

Dynamic line management DLM optimises copper line speeds

Important in EFM deployment.

Key OAM Metrics reported on:

Availability

Throughput (% of CIR/EIR)

Frame Loss

Frame Delay

Frame Delay Variation

Ethernet OAMEnables engineered SLA’s at Layer 3 and above by delivering Layer 2 fault and performance management

End to end functionality validated through implementation of industry standards

802.1ag – Connectivity Fault Management (CFM)

ITU T.Y.1731 – Service Performance

Delay < 5msVariation = N/SLoss < 0.01%

CIR > 0EIR ≤UNI Speed4, 5

Bursty mission critical data applications requiring low loss and delay (e.g., Storage)

Silver

0, 1, 2

3, 4

6, 7

CoS ID

CIR=0 EIR=UNI speed

CIR > 0EIR ≤UNI Speed

CIR > 0EIR = 0

Bandwidth Profile per EVC per CoS

ID

Best effort service

Bursty data applications requiring bandwidth assurances

Real-time IP telephony or IP video applications

Service Characteristics

Delay < 30msVariation = N/S

Loss < 0.5%Standard

Delay < 15msVariation = N/S

Loss < 0.1%Bronze

Delay < 5msVariation < 1msLoss < 0.001%

Premium

Service Performance

Service Class

Delay < 5msVariation = N/SLoss < 0.01%

CIR > 0EIR ≤UNI Speed4, 5

Bursty mission critical data applications requiring low loss and delay (e.g., Storage)

Silver

0, 1, 2

3, 4

6, 7

CoS ID

CIR=0 EIR=UNI speed

CIR > 0EIR ≤UNI Speed

CIR > 0EIR = 0

Bandwidth Profile per EVC per CoS

ID

Best effort service

Bursty data applications requiring bandwidth assurances

Real-time IP telephony or IP video applications

Service Characteristics

Delay < 30msVariation = N/S

Loss < 0.5%Standard

Delay < 15msVariation = N/S

Loss < 0.1%Bronze

Delay < 5msVariation < 1msLoss < 0.001%

Premium

Service Performance

Service Class

Our vision

What does our NGN offer our partners?

Separate service from conveyance Allowing Partners more space to add value

Moving to access based charging Unify B2B connectivity towards Ethernet. Roadmap of migration from legacy to NGN operation Network SIP product set in development. Better transparency of assurance

SIP

CPE

Retain

TDM PBX

ISDN30 C/E Router

NEW

SIP PBX

NGN

Call Server

Media Converter

GSX

C/E

TDM TrunkSwitch

National TDM Network

The Customer’s Choice

?Any questions?

Opal NGN roadmap

Q1 09 Q2 09 Q3 09 Q4 09 Q1 10 Q2 10 2011

EthernetReachDedicated internet access

MPLS IP/VPN- Fibre, DSL, leased line access- Fully meshed, private networking- Performance reporting for customers

Wholesale MPF and L2TP8Mbps, 24MbpsVoice and broadband

Ethernet L2/L3 VPNs E-Line, E-LAN services 3Mbps – 1Gbps options Internet over Ethernet

EFM/NGA (Ethernet)Symmetric bandwidth up to 10Mbps

Enhanced EthernetEOAM – E2E QoSBurstable bandwidth optionsOnline performance reports

Wholesale SMPF and L2TP8Mbps, 24MbpsVoice and broadband

VoIPISDN30 replacement

customer metroexchange core

NGN Network Topology and QoS

edge

www

S

U

P

E

R

C

O

R

E

80

0G

DW

DM

MSAN LAYER 2

SWITCH

10G

10G

10G

10G

DWDM

400G DWDM

BRAs

CU

MPLSL7 VoiceL4 Data

Diffserv+MPLSDF+L7 VoiceEF+L4 Data

PE Router

COSL4 VoiceL0 Data

COS+MPLSL4+L7 VoiceL0+L4 Data

P Router

P Router

CoreSwitch

CoreSwitch