1. The 21st Century Network Keith Dickerson Head of Standards BT Group Standards Requirements

2. Agenda Why a 21st Century Network? What does a 21st Century Network look like? What new Standards are required? What do ITU and fora need to do?

3. Why a 21 st Century Network? Make it easier to create new services –Faster –More people can create Make it easier to buy and use services –Enable customers Make it simpler to deliver and maintain service –Process automation 30-40% cost reduction

4. What does it mean? New services –Open APIs and applications platforms –Mobile enabled –Re-usable components/capabilities –Build on broadband Cost reduction –Not enough to do efficiencies and automation –Radical network convergence to fewer networks and systems carrying more services –Converge in from the edge

5. 21 st Century Services Vision “A world where all our customers feel empowered and are treated as individuals”

6. New Services (1) Multimedia calling (SIP) Video Downloads Broadcast TV Teleworking Gaming Virus scanning Firewalls Back-up Encryption Security VoIP, video,Instant messaging, photos, movies,sharing, games 4.7Gbyte DVD can be stored on CD Could be streamed (nrt) in ~3 hours Microsoft XBox will become a STB Digital Rights Management? Wholesale Broadcast TV distribution service Only available to BB Customers Biplay service (or tri-play) Services integrated by CPE (or by SP) Remote LAN access Security / encryption Roaming Low latency downloading QOS management

7. New Services (2) Broadband –Move from selling best effort pipe to assured services charged per session/time/ –Provide one way assurance (VOD, Turbo button etc) but also two- way multimedia calling –Allow anyone to create services Business –Provide ICT service, managed desktop, storage, hosted applications… Build on IPVPN to have any access, including work at home, cellular and WLAN Future voice –Derived/replacement where needed –Multi-media in both consumer and business Mobility –Support mobile terminals –Build on IM/mobile presentation to provide roaming over any access –Personal and terminal mobility

8. Cost Reduction Efficiencies and automation not enough –need to enable customers and partners in the service management processes Have to include future of PSTN (voice) Radical steps required –need closure of legacy networks and systems More important to converge in access and backhaul than in core –because opex and capex centred there

9. 21 st Century Network Vision Begin Fibre to the PCP ~30,000 Multi- Service Access Devices ~100 Metro Routers ~10 Core Routers End Customer Internet Peering Data Centre International Networks Logical Nodes ~ 80,000 PCPs in the Access Network ~100,000 Remote Concs, DLAMS and Data Muxes ~ 1000 + Voice Switches and Data Cross Connects ~170 Core Switches (DMSU / NGS) Data Centre Logical Nodes Today Aggregation Service Edge Core

10. Today's network has many access aggregation devices Voice Broadband Copper Fibre MDF PDH/PSTN MSIP/MSH MESH/MSH PDH/MESH/MSH Data Services ~6000 exchange sites CWSS DPCN.. DWSS ASDH… RCU DSLAMs Network Infrastructure 400,000 fibres ~30,000 boxes ~32,000 boxes 500,000 circuits ~25,000 boxes 5m pairs 23m pairs 5m pairs ~9,000 boxes For 5 million Broadband and 23 million PSTN customers 40 m pairs TOTAL ~74 m pairs : 400,000 fibres TOTAL ~100,000 boxes Service Management Multiple service management organisations and systems Multiple Fibre Data Service Mgt Narrow Band Service Mgt Mid Band Service Mgt Broad Band Service Mgt Multiple Copper Data Service Mgt 6+ service Mgt Organisations

11. The future will be based on a multi-service access node Voice or Broadband Copper Fibre MDF Integrated test and operations MULTIMEDIAMULTIMEDIA Data Services Multi-Service Access Aggregator For 5 million Broadband and 23 million PSTN customers 40m pairs Up to 23m pairs 500,000 circuits 400,000 fibres ~ 63m pairs : 400,00 fibres ~30,000 boxes Up to 15% reduction!Up to 70% reduction! Single service management organisation Fewer devices, simpler service management Network Infrastructure Service Management Multi Band Service Management Transmission e.g.MSH

12. Today's service network edge is made up of many dedicated switches and routers MESH MSH and UBB PDH DPCN MESH and MSH MSIP MSH Ethernet UBB Fixed Internet Dial Internet KiloStream ATM and FR EtherStream MetroStream MSH and UBB IPVPN BTnet Metro Equip IPClear Fusion IPenabled Webport Surfport PDH DLE PSTN Network Infrastructure Service Management IPVPN Data Service Mgt Narrow Band Service Mgt Private Cct Service Mgt Internet Service Mgt L2 Data Services Service Mgt SDH Service Mgt 6+ service management organisations Multiple service management organisations and systems

13. Target 21CN metro node - multi-service design Voice KiloStream SDH CellStream FrameStream EtherStream MetroStream BTnet Rich Media Services Webport UBB Outer core TDM Dial Internet ATM/FR Ethernet IP IP VPN MULTIMEDIAMULTIMEDIA Multi Service Edge To/From Aggregation Nodes Single service management organisation Network Infrastructure Service Management Multi-Service Management Fewer devices, simpler service management

14. Today's multiple core networks mirror the individual service networks PDH MESH MSH MSH and UBB WDM UBB IP Core Router WDMUBB ATM Core Switch PSTN DMSU Switch PSTN DISC Switch PSTN NGN Switch Network Infrastructure Service Management PDH Service Mgt IP Service Management UBB Service Mgt WDM Service Mgt 4+ Service Mgt organisations Multiple service management organisation and systems

15. The target is for a multi-service core, with high capacity optical cross connects WDM MPLS Core Network Infrastructure Service Management Single Service Management Organisation Multi-Service Management Multi-service principle - fewer devices, simpler service management, lower cost to build and operate

16. Intelligent applications – today IN Today’s intelligence is built into each PSTN switch - limited central intelligence in the IP network

17. Provide a common Intelligence Layer Authentication Authorisation Presence Monitor ControlAccounting Common Data Model – LDAP interface Application layer – Web Services.Net J2EE Interface Protocols–INAP, MGCP, SNMP, CORBA, GMPLS, etc PSTN and new generation PSTN Flexible user interface Web, DTMF,Voice Mediation and Billing Intelligence Layer Data networks Internet backbone Transmission Layer 3 rd party networks Intelligence layer Intelligent Service Layer – controlling IP and PSTN - and allowing controlled 3 rd party access

18. Home Gateway Customer Gateway Access Interface EUD-HN1 Interface End User device EUD-HNn Interface CG-HN1 Interface End User device IF-1 IF-2IF-4IF-3 IF-6 IF-5 IF-7 IF-8 Management & Control API Diagnostics API CG-HNn Interface Content Provider Service Provider Network Provider IF-9 IF-10 Home Network 1 Home Network n Customer Environment NT M&C API Diag API M&C API Diag API

19. Mobility Architecture PS-CN PSTN PUBLIC IP NETWORK IMS VOIP Internet Services Telephony MGW T-SGW P-CSCFI-CSCFS-CSCF MGCF Service Layer Gateway Traffic Signaling WLAN UE VOIP or MM Services WLAN AP Fixed (e.g. Broadband) Access WLAN NC AAA DSLAM IP v6 Capable Core Network + Mobile IP v6 Gateway FA RAS Application Layer HSS OLO Service Layer HSS Non-SIM HSS

20. OSS Architecture DEF ABC Low OSS Impact Key: High OSS Impact Business Management Middleware Functional Layer CRM Retail Billing Interconnect Billing Wholesale Billing Network Management Logistics Number & Naming Management 3rd Party Management Pre-pay Management Product Management Fraud Management Credit/Address Check Payment Gateway User Portal GIS Usage Mediation Provision Mediation Inventory Management Order Management Trouble Management Personalisation Management Cellular I/W Gateway B2B Gateway Process Manager AAA Process- Specific Function GHI Medium OSS Impact

21. Application Architecture

22. Example Architecture Implementation

23. Highest Priority 21CN Standards Requirements 3GPP Architecture extended to WLAN and fixed Broadband access QoS –MPLS (Session) based QoS Session Control –extensions to SIP with full multimedia capability Manageability –Commoditised componentised OSS Security –Authentication across networks / operators

24. ITU is important to 21CN for: Access Networks – SG15 Core Networks – SG13 Optical Networking – SG15 Spectrum – ITU-R Numbering & Addressing – SG2 Signalling for QoS across multiple networks – SG11 QoS Architecture in SG16?

25. Important Fora for 21CN 3GPP – Mobility Architecture IETF – IPv6, SIP extensions, MPLS, etc TMF – standardised OSS components Open Mobile Alliance (OMA) – (Mobile) Applications, DRM Metro Ethernet Forum (MEF) – Gigabit Ethernet IEEE 802.11x - WLAN W3C – Privacy, Web Services Liberty Alliance – Single Sign On

26. Conclusions 21 st Century Network will only succeed based on standardised components ITU must work with fora and consortia to achieve standards for 21CN ITU-T Informal Forums Summit (IFS) must lead way