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ITU-T Study Group 7

ITU-T Study Group 7 Herbert V. Bertine Lucent Technologies ITU-T Study Group 7 Data Networks and Open System Communications

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ITU-T Study Group 7

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  1. ITU-T Study Group 7 Herbert V. Bertine Lucent Technologies

  2. ITU-T Study Group 7Data Networks andOpen System Communications • Responsible for studies relating to data communication networks, and for studies relating to the application of open system communications including networking, directory and security • Lead Study Group on: • Frame relay • Communication system security ITU-T and ITU-D Workshop - Bangalore (India), 30-31 August 2001

  3. Study Group 7 • Responsible for 278 ITU-T Recommendations - most of the X-series plus a few in E, F, and Q series • Several on the ITU “top 20” list - X.25, X.509, ASN.1, … • Study Group structure: • WP1 Data Networks • WP2 Open Systems Technology • WP3 E-commerce/E-business ITU-T and ITU-D Workshop - Bangalore (India), 30-31 August 2001

  4. Relations ISO/IEC JTC 1 IETF STUDY GROUP 7 IEEE UN/ECE FRAMERELAY FORUM OTHER STUDY GROUPS OTHER FORUMS ITU-T and ITU-D Workshop - Bangalore (India), 30-31 August 2001

  5. Public Data Networks • Dedicated Data Networks • Digital Data Networks – leased circuits and circuit switched • Packet Data Networks • Frame Relay Networks • Service Definition • Numbering and Routing • Network Performance and QoS • User-Network and Network-Network Interfaces • Access and Interworking Procedures ITU-T and ITU-D Workshop - Bangalore (India), 30-31 August 2001

  6. Open Communications • IP-related Lower Layer Protocols • End-to-end QoS Multicast Communications • Directory (X.500-series) • ASN.1 (X.680/X.690-series) • Security • Conformance Testing • Open Systems Interconnection • Open Distributed Processing ITU-T and ITU-D Workshop - Bangalore (India), 30-31 August 2001

  7. Frame Relay • UNI and NNI protocols mature • Performance parameters in place • Examples of ongoing work: • number plan interworking of public data networks with IP networks • performance when IP is carried over or interworked with a FR network • routing between public FR networks • FR / ATM interworking ITU-T and ITU-D Workshop - Bangalore (India), 30-31 August 2001

  8. IP-related Lower Layer Protocols and Mechanisms • IP over SDH using LAPS (X.85) • Ethernet over LAPS (X.86) • General arrangements for interworking between Public Data Networks and the Internet (X.271) • Carrying an IP address (IPv4, IPv6) in an NSAP address (X.213) ITU-T and ITU-D Workshop - Bangalore (India), 30-31 August 2001

  9. End-to-End QoS Multicast • Recommendationsto enable applications to establish and control multicast communications involving M transmitters and N receivers with a rich set of QoS features over IP-based networks • Approved: Multi-peer communications framework (X.601), Service definition (X.605) • Near final: Simplex multicast transport • Future: Duplex, N-plex ITU-T and ITU-D Workshop - Bangalore (India), 30-31 August 2001

  10. Directory • Updated edition (X.500-series) • Public-key and attribute certificate frameworks (X.509) • Enhancements in progress: • Friend Attribute • Distributed Paged Results • Maximizing alignment with LDAP • Additional support for Related Entries • Enhancement of public key and attribute certificates ITU-T and ITU-D Workshop - Bangalore (India), 30-31 August 2001

  11. ASN.1 • Work nearing completion: • Use of ASN.1 to support legacy protocols (X.692) • Displaying ASN.1 messages using XML browsers (X.693) • Encoding XML-defined messages using ASN.1 (X.694) • New edition of ASN.1 (X.680-/X.690-) • Database of ASN.1 modules • ASN.1 assistance, books, tools ITU-T and ITU-D Workshop - Bangalore (India), 30-31 August 2001

  12. Security • Recommendations on security model, frameworks, protocols, and techniques approved 1991-2000 • Revisiting future work program • Considering workshop on security in 2002 ITU-T and ITU-D Workshop - Bangalore (India), 30-31 August 2001

  13. Conformance Testing • Conformance testing methodology and framework for protocol Recommendations (X.290-series) • New work: • Methodology and framework for interoperability testing • Methodology and framework for performance testing ITU-T and ITU-D Workshop - Bangalore (India), 30-31 August 2001

  14. Further Information • Study Group 7 meeting in Bangalore 28 August - 7 September 2001 • ITU web site: www.itu.int • Study Group 7 page: www.itu.int/ITU-T/com7/index.html • Chairman: hbertine@lucent.com • Secretariat: sebek@itu.int ITU-T and ITU-D Workshop - Bangalore (India), 30-31 August 2001

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