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ITU-T SG11 Brain Storming on NGN: Future Directions for Control protocols

ITU-T SG11 Brain Storming on NGN: Future Directions for Control protocols. Alain Le Roux Geneva, 14 November 2002. Potential new areas of activities. WP1 (services and application requirements & control protocols) Multi-media related Network control requirements

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ITU-T SG11 Brain Storming on NGN: Future Directions for Control protocols

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  1. ITU-T SG11Brain Storming on NGN:Future Directions for Control protocols Alain Le Roux Geneva, 14 November 2002

  2. Potential new areas of activities • WP1 (services and application requirements &control protocols) • Multi-media related Network control requirements • NGN control architecture (functional decomposition) • NGN interfaces & control protocols (APIs, SIP …) • WP2 (call/session and resource control requirements) • Resource and QoS control functions • WP3 (signalling/control protocols) • Protocol selection and profile for call/session/bearer (SIP, MPLS, RSVP, COPS …) • Call/bearer control protocol interactions & interworking • WP4 (transport of control protocols) • Signalling transport architecture and protocol profiles (e.g. based on SIGTRAN RFCs)

  3. illustration of Scope of Control Architecture & Protocols in SG11 Service & Application Control (Servers) Scope ITU-T SG11 2 User authentication & Service profile control 2 • Per Session Control Protocols: • Session (call): 1 • Service/Application: 2 • Resources allocation & traffic policy control: 2, 3 1 Session (or call) control (Call Agents) E.g. BICC, H323, SIP, SIP-T/SIP-GTD 3 e.g. H248 3 Resource control & Traffic policing 4 Bearer control (Switch/Routing) E.g. ATM sig, MPLS/RSVP ... • Transport resource control: • Bearer/Connection control: 4 • Backbone resource control: 5, 6 5 (UNI) 5 (UNI) 6 (NNI) Transport (xDSL/GbE/SDH/DWDM/Optical) E.g. GMPLS with RSVP-TE or CR-LDP, or Optical-PNNI

  4. Next steps ... • Confirmation of SG11 as the UIT-T study group lead on Network Control Architectures & Protocols • legacy and emerging ones for NGN architectures • Initiation of a SG11 ‘N2CAP’ project • Part of the NGN 2004 SG13 coordinated Project • Organise its preparation & launch • e-mail activity (moderated by the Project coordinator) • Impacts on the SG11 Questions and Structure • SG11 Questions update • SG11 structure adjustments possibly needed

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