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ITU-T IP Related Studies

ITU-T IP Related Studies. Arshey Odedra ITU-T TSB Engineer: arshey.odedra@itu.int International Telecommunication Union [ITU-T Seminar Botswana 24-26 July – 2002]. ITU-T IP Related Studies. (1) ITU-T IP Project (2 ) ) ITU-T SG11Signalling & IP activities (3)IP Cable Communications

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ITU-T IP Related Studies

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  1. ITU-T IP Related Studies Arshey Odedra ITU-T TSB Engineer: arshey.odedra@itu.int International Telecommunication Union[ITU-T Seminar Botswana 24-26 July – 2002]

  2. ITU-T IP Related Studies • (1) ITU-T IP Project • (2) ) ITU-T SG11Signalling & IP activities(3)IP Cable Communications • (4)IP-QoS/Performance • (5)IP-Optical Perfce • (6)Numbering • (7)IP and Security • (8)Multimedia (MM)

  3. (1) The ITU-T IP Project • ‘ITU-T IP Project’ Cover IP related ITU-T work • Project Doc Issue 4: SG13 Website

  4. Scope of the Project

  5. SG13 IP Work • Y.1231 - IP Access Network Architecture • Y.1310 - Transport of IP over ATM in public networks • Y.1401 - General requirements for interworking with IP-based Networks • Y.1241 - Support of IP-based services using IP transfer capabilities

  6. SG13 IP work • Y.17oam - OAM and protection switching for IP-based networks • Y.1540 - IP packet transfer and availability performance parameters • Y.1541 - IP performance objectives and allocations • Y.1311 - IP VPN • Y.1311.1 - IP VPN over MPLS • Y.satip - Satellite IP networking architecture • Y.123qos - IP access quality of service • Y.ipbypass - IP bypass in access networks

  7. SG13 Future Plans • SGs continue to build links with the IETF • SG13 develop and manage the IP Project

  8. (2) ITU-T SG11Signalling & IP activities • SCOPE: • Defines Signalling requirements and protocols for: • enhancements to existing Recommendations on access (UNI) and (inter)-network (NNI) signalling protocols for PSTN, ISDN and Packet (ATM and IP)-based networks • Some Mobility & MM related functions • the support of voice, data and Multi-media communications and services • emerging NGN architectures, signalling requirements, and control Protocols including Internet Protocol (IP) related control functions • Lead Study Group for IN

  9. ITU-T SG11 Current work focus: • Interactions between IN and IP-based networks • IP-related signalling protocols • Bearer (ATM, IP) Independent Call Control (i.e. BICC) • Signalling transport over IP

  10. SS7 Convergence towards Packet based Networks - Intelligent Network architecture and protocols enhanced - For Call control signalling, Bearer Independent Call Control (BICC) protocols - over Packet based transport networks • BICC Recs approved (2000 & 2001). • BICC CS3 Recs approval target: 2003.

  11. (3) IP Cable Communnications • IPCablecom (SG9) • Defines architecture and interface specs  interactive services over cable television network using IP • Market driver: IP telephony

  12. IPCablecom Service Possibilities • Residential/ Business IP Telephony • Video IP telephony • Voice/data/video unified messaging • Enhanced conferencing and media services • Entertainment Services Real-time multiplayer interactive gaming

  13. IPCablecom Components AN CMS PSTN Gateway Managed IP Network CM PSTN HFC CM MTA EmbeddedMTA AN Access Node CM Cable Modem CMS Call Management Servers HFC Hybrid Fiber Coax network MTAMultimedia Terminal Adapter PSTN Public Switched Tel. Network Back Office Servers

  14. IPCablecom Recs. for interoperability intra-zone and with PSTN A set of recommendations approved (2001/2002) Architecture J.160 Architecture Signaling J.162 Network Call Signalling J.165 IPCablecom Signalling Transport Protocol J.171 Trunk Gateway Control Protocol Quality of Service J.163 Dynamic QoS • Media/Codecs • J.161 Audio Codec Requirements. • OSS • J.164Event Messaging • J.166 MIB Framework • J.167 MTA Provisioning • J.168 MTA MIB • J.169 NCS MIB • Security • J.170 (02/02)Security

  15. IPCablecom Recs. for interoperability inter-zone and inter-domain directly over managed IP backbones • Quality of Service • J.174 (02/02)Inter-domain QoS • Security • J.170 (02/02) Security • Architecture • For further study Signaling For further study OSS • J.164 (03/01)Event Messaging

  16. (4)IP-QoS/Performance • QoS Classes : Basis for IP Network QoS Control • IP QoS control: IP/PSTN network convergence • Y.1541(05/2002) • Y.1540=I.380 •  QoS signaling protocols  Y.1541

  17. Some Discussion topics on IP Network QoS Control • Harmonised IP QoS signaling • Interworking IP QoS mechanisms

  18. (5) IP-Optical Network & Performance Aspects • IP-Optical Networks: Motivation - Infrastructure Attributes - Capabilities - Operational Benefits

  19. IP/Optical Networks:Performance Benefits & Challenges • Performance Benefits • Increased transmission capacity • Reduced packet transfer delay, delay variation, loss, error • Lower call set up delays and blocking probabilities • Improved service availability • Some Challenges • Specify interoperable performance signaling protocols • Relate IP user/client requirements with control mechanisms • Define compatible network management strategies

  20. New RFCs Loss Patterns Bulk Transfer Capacity Current (IETF) Drafts Packet Reordering Active Meas. Protocol Req. IPPM MIB New Work on Link Bandwidth Capacity Performance Objectives Y.1541 (May 2002), six QoS Classes Suggest QoS Signaling Support/Methods Parameter Revisions Y.1540 (Nov 2002) “other” Packet Transfer MPLS? IPPM and Question 6/13

  21. (6) Numbering • ENUM Significance: - Mapping telephone numbers onto Internet. - Could allow conventional telephones to call IP terminals (PCs). - ITU Responsibility: Define and implement administrative procedures that coordinate delegations of E.164 numbering resources into the agreed DNS name servers - Draft Recommendation E.A-ENUM is being prepared by Study Group 2: (target E.A-ENUM, Dec. 2002?)

  22. (7)IP and Security Directory Access Control with X.509 Attribute Certificates: • The user given Attribute Certificate (AC) which strongly binds his/her name to the privileges being given to him/her • The AC is signed by the Attribute Authority (Resource Owner or his delegate) • Similar to X.509v3 certificate, only holds a sequence of attributes rather than a public key • An attribute certificate can be stored anywhere since it is secure and self contained

  23. Standardisation Work ofQ.9/17 • Friends attributes in X.501, X.511 • Distributed page results service in X.518 • Related Entries in X.501, X.511, X.518 • Alignment with IETF standards • Defect reports in entire X.500-series

  24. SSG Role on Security • Q.3/SSG Identification of existing and evolving IMT-2000 Systems • Q.1741 3GPP security specifications • Q.1/SSG Service and network capability requirements andnetworkarchitecture • & Q.7/SSG Convergence of fixed and existing IMT-2000 systems

  25. Study Group 16 - Security-relatedQs in the MediaCom2004 project Q.C/16 - MM Applications & Services F.706 Q.D/16 - Interoperability of MM Systems & Services Q.G/16 - Security of MM Systems & Services H.233, H.234, H.235 Q.F/16 - MM Quality of Service & E-2-E Performance in MM Systems Q.1/16 MM Systems, Terminals & Data Conferencing H.320 H.324 T.120 Q.2/16 MM over Packet Networks using H.323 systems H.225.0 H.323 H.450 H.460 Q.3/16 Infrastructure & Interoperability for MM over Packet Network Systems H.245 H.246 H.248 Q.4/16 Video and Data conferencing using Internet supported Services Q.5/16 Mobility for MM Systems & Services H.501 H.510 H.530

  26. Q.G/16 Work and Study ItemsSome Highlights • Investigate confidentiality and privacy of all signaling • Address centralized key management for MM systems • Security for MM Mobility • Optimize voice encryption, develop video encryption • MM security support for emergency services • Consolidate or develope new security profiles • Security interworking H.323-SIP

  27. Emergency Telecoms Services (ETS) Security for MM Applications and Systems • Security objectives: • prevent theft of service and denial of service by unauthorized user • support access control and authorization of ETS users • confidentiality and integrity of calls • provide rapid and user-friendly authentication of ETS users • H.SETS : provisional title for a new work item under study in Q.G/16 - focus on the multimedia security aspects of ETS

  28. (8)Multimedia (MM) ITU-T Study Group 16 Project: MediaCom 2004 Objective: • to create a framework for the harmonized and coordinated development of multimedia communication standardization for use across all ITU-T and ITU-R Study Groups, and in close cooperation with other regional and international SDOs and industry forums

  29. MEDIACOM 2004 Framework in SG16 FSA Framework Study Areas MEDIACOM 2004 (Q A/16) Generic Questions B/16 to H/16 Framework Standardisation Areas (FSA) Equipment and system questions 1/16 to 15/16

  30. Framework Study Areas (FSA) • Project MediaCom 2004 (A/16) • MM Architecture (B/16) • MM Applications and Services (C/16) • Interoperability of MM Systems and Services (D/16) • Media Coding (E/16) • QoS & E-to-E performance in MM Systems (F/16) • Security of MM Systems and Services (G/16) • Accessibility (H/16)

  31. MM Element Interdependence User perspective Equipment/protocol perspective

  32. GENEVA THANK YOU

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