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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

ITU-T Study Group 7

Herbert V. Bertine

Lucent Technologies

itu t study group 7 data networks and open system communications
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

study group 7
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

relations
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

public data networks
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

open communications
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

frame relay
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

ip related lower layer protocols and mechanisms
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

end to end qos multicast
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

directory
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

asn 1
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

security
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

conformance testing
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

further information
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

ITU-T and ITU-D Workshop - Bangalore (India), 30-31 August 2001

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