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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
This document is uncontrolled if printed or saved to a non-authorised site.
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
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