ITU-T Study Group 13 Multi-protocol and IP-based networks and their internetworking Brian Moore

Contents Terms of reference Management Team SG Organization Statistics Highlights of achievements / Projects / FGs Workshops Issues for WTSA approval Future work

Terms of Reference (I) Responsible for studies relating to inter-networking of heterogeneous networks encompassing multiple domains, multiple protocols and innovative technologies with a goal to deliver high-quality, reliable networking. Specific aspects are architecture, interworking and adaptation, end-to-end considerations, routing and requirements for transport.

Terms of Reference (II) Lead Study Group for: IP related matters B-ISDN Global Information Infrastructure (GII) Satellite matters

Management Team Chair B. Moore (UK) Vice-Chairs J-Y. Cochennec (France) C-S. Lee (Korea) Y. Maeda (Japan) N. Seitz (USA) H. Schink (Germany) WP Chairs J-Y. Cochennec (WP 1) C-S. Lee (WP 2) Y. Maeda (WP 3) N. Seitz (WP 4) TSB F. Bigi/G. Sebek, G. Regan COUNTRY: should be the letter acronym, e.g. USA, I (for Italy), J (Japan), etc, as used in the ITU list of participants Delete UNUSED rows in the PowerPoint table

Study Group Structure Questions 4, 6, 7, 8 and 9/13 WP1 Project Management and Coordination Questions 12 and 15/13 WP2 Architectures and Interworking Principles Questions 1, 5, 10, 13,14 and 16/13 WP3 Multi-protocol Networks and Mechanisms Questions 2, 3 and 11/13 WP 4 Network Performance and Resource Management Questions 4, 6, 7, 8 and 9/13 JRG-NGN; OCAF Focus Group; 3 ITU-T Projects (GII, IP, NGN-2004)

Statistics (I) 31 Rapporteurs meetings held 3 Joint Rapporteur Group on NGN (JRG-NGN) meetings 598 contributions received 6 SG meetings held 5 WP meetings held Max/Min/Average SG participants : 184 / 109 / 142

Statistics (II) 61 New/Revised Recommendations approved 16 Questions assigned by WTSA-2000 No new or revised Questions and one Question deleted during study period 16 Questions proposed for next period

Highlights of achievements (I) Network architecture Work led to Recommendations on architectural models for interworking, support of IP-based services, reference points for interconnection and emergency communications. Work is underway on a number of foundational Recommendations on NGN including general overview, reference and architectural models and migration and management aspects.

Highlights of achievements (II) Network architecture (cont.) Work has also included architecture frameworks for the support of QoS in packet networks and in Ethernet-based access networks as well as an end-to-end QoS architecture. Ongoing work includes requirements and frameworks for QoS in NGNs.

Highlights of achievements (III) Multi-protocol networks Conclusion on the work on OAM and protection switching for MPLS networks and recent starting of similar work for Ethernet based networks (Y.1700-series). Attention is now turning to NGN OAM and network management aspects. Work is completed on ATM - MPLS and TDM-MPLS network interworking. Work continues on voice services interworking with MPLS, voice trunking over IP and ETH/ATM/FR interworking.

Highlights of achievements (IV) Multi-protocol networks (cont.) Recommendations were prepared on IP VPNs and voice services over MPLS, Layer 1 VPNs and mobile IP over MPLS. Basic Recommendations on network-based Virtual Private Networks were developed in close collaboration with other ITU-T Study Groups and the IETF. Work is underway on further VPN-based requirements, mobility requirements and architecture for NGN and service requirements for NGN.

Highlights of achievements (V) Network performance Work led to new/revised Recommendations on IP and TCP transfer and availability performance and MPLS and Ethernet performance aspects. A major output is Recommendation Y.1541 seen as a basis to guarantee QoS on IP-based networks. Transmission performance studies have included AAL information transfer performance and performance of AAL type 2 switched connections. Work also concentrated on updating various Recommendations dealing with error performance of digital paths (G.820-series).

Highlights of achievements (VI) Network performance (cont.) New transmission performance work has included Recommendations on error performance aspects of optical networks (G.8201) and availability parameters for digital paths. Work has also included call processing performance in B-ISDNs and in hybrid IP-based networks.

Highlights of achievements (VII) Project Management Activities included development, management and updating of the ITU-T GII and IP Projects in cooperation with other Study Groups and SDOs. The NGN-2004 Project was developed with the aim to identify the necessary standardisation activities in the ITU-T on Next Generation Networks and to coordinate the work with other Study Groups and SDOs.

Workshops (I) Seminar organized by SG 13 - Future Network Evolution, Caracas, 14 May 2001 Workshops co-organized with SG 13 - Next Generation Networks: What, When and How? Geneva, 9-10 July 2003 - Satellites in IP and Multimedia, Geneva, 9-11 December 2002 - IP/Optical, Chitose, July 2002 - IP-Networking and MEDIACOM-2004, Geneva, 24-27 April 2001

Workshops (II) Workshops with SG 13 participation - Home Networking and Home Services, Tokyo, 17-18 June 2004 - All Star Network Access, Geneva, 2-4 June 2004 - End to End Quality of Service. What is it? How do we get it? Geneva, 1-3 October 2003 - Multimedia Convergence, Geneva, 12-15 March 2002 - QoS and user-perceived transmission quality in evolving networks, Dakar, 18-19 October 2001 - IP-Telecoms Interworking, Geneva, 25-27 January 2000

Recommendation presented for WTSA approval Y.1271, Framework(s) on network requirements and capabilities to support emergency communications over evolving circuit-switched and packet-switched networks (COM 13-R 50)

Future of the ICG-SAT SG 13, as the lead Study Group for ICG-SAT, has to submit proposals to the WTSA concerning the future of the ICG-SAT. General feeling amongst ICG-SAT participants is that the ICG is still serving a useful purpose and that it should continue. This view has been endorsed by SG 13, by RA and by TSAG and the proposal that the ICG-SAT should continue is submitted to the WTSA for approval.

Future Work (I) Rapid increase in the interest and involvement in the Next Generation Network (NGN) studies of SG 13 demonstrates that NGN will be a major work area for the ITU-T in the next study period. SG 13 view is that, in the next study period, it will be essential to have a 'core NGN' activity to continue to give focus to the NGN work both within the ITU and with other SDOs, Fora etc. With this in mind SG 13 has developed a set of Questions which will carry forward the work on NGN and other ongoing work of the Study Group.

Future Work (II) Ongoing work falls into two main areas core NGN studies performance and resource management ‘Core NGN’ function in the next study period should have a good mixture of work on architectures and frameworks generic technical new work on NGN profiling of existing specifications project management

Acknowledgements Leading Study Group 13 over the past four years been a stimulating and challenging task and all involved in the Study Group can be proud of their achievements. I would especially like to thank the Vice-Chairmen for their faithful and very dedicated support to the Study Group 13 management team and the TSB staff for their tremendous support behind the scenes. Especially to Georges Sebek, who had the difficult task of taking over from Fabio Bigi but did this with great skill, and Gabrielle Regan. Finally I would like to thank all the Rapporteurs, Associate Rapporteurs and editors who had served in these very important roles during the study period.

B W Moore MSc BSc CEng FIEE Thank you! B W Moore MSc BSc CEng FIEE Brian Moore has been working in the telecoms standardisation field for over thirty years and has held many chairmanships in CEPT, ETSI and the ITU in the area of network standards. He has been involved in standards development for data networks, signalling systems, the ISDN and IP-based networks. He was earlier involved in Study Group 7 (VII), Study Group 11 (XI) where he led the Signalling System No 7 Experts Group and Study Group 18 (XVIII) where he was chairman of the Signalling Working Party. He has been a vice-chairman of and is currently chairman of ITU-T Study Group 13. Brian, after a career of over thirty years with British Telecom, has for the last seven years, been a consultant to Lucent Technologies.