International Telecommunication Union ITU Seminar on Standardization Accra, Ghana, May 2004 ITU activities related to IP-based networks Greg Jones ITU Telecommunication Standardization Sector (ITU-T)

May 2004 ITU-T IP Related Studies 1. ITU-T IP Project 2. ITU-T SG11 Signalling & IP activities 3. IP Cable Communications 4. IP-QoS/Performance 5. IP-Optical Network & Performance Aspects 6. Numbering 7. IP and Security 8. Multimedia (MM)

May 2004 ITU-Ts IP Project o Covers IP related ITU-T work o IP Project Description version 8 see ITU-T Study Group 13 website itu.int/ITU-T/studygroups/com13

May 2004 IP project areas 1. Integrated architecture 2. Impact to telecommunications access infrastructures of access to IP applications 3. Interworking between IP based network and switched- circuit networks, including wireless based networks 4. Multimedia applications over IP 5. Numbering and addressing 6. Transport for IP-structured signals 7. Signalling support, IN and routing for services on IP- based networks 8. Performance 9. Integrated management of telecom and IP-based networks 10. Security aspects 11. Network capabilities including requirements for resource management 12. Operations and Maintenance (OAM) for IP 13. Utilization of IPv6 in telecommunication networks

May 2004 Scope of the IP Project

May 2004 SG13 IP Work o Y IP Access Network Architecture o Y Transport of IP over ATM in public networks o Y General requirements for interworking with IP-based Networks o Y Support of IP-based services using IP transfer capabilities

27-28 May 2004 SG13 IP work o Y Requirements for OAM functionality for MPLS networks o Y IP packet transfer and availability performance parameters o Y IP performance objectives and allocations o Y IP VPN o Y IP VPN over MPLS o Y.satIP - Satellite IP networking (arch, mcst, QoS) o Y.123.qos - IP access quality of service o Y.ipbypass - IP bypass in access networks

27-28 May 2004 SG13 Future o Study groups continue to build links with the IETF o Develop and manage the IP Project o Work programme see itu.int/ITU-T/dbase

May 2004 (2) ITU-T Study Group 11 Signalling & IP activities o 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 o Lead Study Group for IN

May 2004 ITU-T SG11 work focus o Interactions between IN and IP-based networks o IP-related signalling protocols o Bearer (ATM, IP) Independent Call Control (i.e. BICC) o Signalling transport over IP

May 2004 SS7 Convergence towards Packet based Networks o Intelligent Network architecture and protocols enhance o For Call control signalling, Bearer Independent Call Control (BICC) protocols - over Packet based transport networks BICC Recs approved (2000 & 2001). BICC CS3 under development

May 2004 (3) IP Cable Communications IPCablecom (SG9) o Defines architecture and interface specs interactive services over cable television network using IP o Market driver: IP telephony

May 2004 IPCablecom Service Possibilities o Residential/ Business IP Telephony o Video IP telephony o Voice/data/video unified messaging o Enhanced conferencing and media services o Entertainment Services Real-time multiplayer interactive gaming

May 2004 AN Access Node CM Cable Modem CMS Call Management Servers HFC Hybrid Fiber Coax network MTA Multimedia Terminal Adapter PSTN Public Switched Tel. Network Embedded MTA IPCablecom Components PSTN Gateway CMS CM MTA Back Office Servers Managed IP Network AN CM HFC

May 2004 IPCablecom Recs. for interoperability intra-zone and with PSTN Architecture J.160 Architecture Signalling 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.164 Event Messaging J.166 MIB Framework J.167 MTA Provisioning J.168 MTA MIB J.169 NCS MIB Security J.170 (02/02) Security A set of recommendations in 2001/2002

May 2004 IPCablecom Recs. for interoperability inter-zone and inter-domain directly over managed IP backbones Quality of Service J.174 Inter-domain QoS Security J.170 Security Architecture For further study Signalling For further study OSS J.164 Event Messaging

May 2004 (4) IP-QoS/Performance o QoS Classes Basis for IP Network QoS Control o IP QoS control IP/PSTN network convergence o Y.1541 Network performance objectives for IP- based services o Y.1540=I.380 Internet protocol data communication service - IP packet transfer and availability performance parameters o QoS signalling protocols Y.1541

May 2004 Max Packet Loss, Max Mean Delay, Max Delay Variation TRANSPORT APPLICATION Codec Performance, VAD, Frames per Packet, Jitter Buffer Size, Codec Delay, FEC (Redundancy) QoS Parameters ITU-T SG16/11ITU-T SG13/IETF SERVICE User Perceived QoS ITU-T SG12/16

May 2004 Some Discussion topics on IP Network QoS Control o Harmonized IP QoS signalling o Interworking IP QoS mechanisms

May 2004 (5) IP-Optical Network & Performance Aspects o IP-Optical Networks: Motivation Infrastructure Attributes Capabilities Operational Benefits

May 2004 IP/Optical - Performance Benefits & Challenges o Performance Benefits Increased transmission capacity Reduced packet transfer delay, delay variation, loss, error Lower call set up delays and blocking probabilities Improved service availability o Some Challenges Specify interoperable performance signalling protocols Relate IP user/client requirements with control mechanisms Define compatible network management strategies

May 2004 IPPM and Question 6/13 o New RFCs Loss Patterns Bulk Transfer Capacity o Current (IETF) Drafts Packet Reordering Active Meas. Protocol Req. IPPM MIB o New Work Link Bandwidth Capacity o Performance Objectives Y.1541 (May 2002), six QoS Classes o Suggest QoS Signaling Support/Methods o Parameter Revisions Y.1540 (Nov 2002) o other Packet Transfer MPLS?

May 2004 (6) Numbering o 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

May 2004 (7)IP and Security Directory Access Control with X.509 Attribute Certificates: o The user given Attribute Certificate (AC) which strongly binds his/her name to the privileges being given to him/her o The AC is signed by the Attribute Authority (Resource Owner or his delegate) o Similar to X.509v3 certificate, only holds a sequence of attributes rather than a public key o An attribute certificate can be stored anywhere since it is secure and self contained

May 2004 Standardisation Work of Q. 9/17 o Friends attributes in X.501, X.511 o Distributed page results service in X.518 o Related Entries in X.501, X.511, X.518 o Alignment with IETF standards o Defect reports for entire X.500-series

May 2004 ITU-T Special Study Group IMT-2000 and Beyond o Q.3/SSG Identification of existing and evolving IMT-2000 Systems Q GPP security specifications o Q.1/SSG Service and network capability requirements and network architecture o & Q.7/SSG Convergence of fixed and existing IMT-2000 systems

May 2004 Study Group 16 Security-related Questions 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.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 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 Q.F/16 - MM Quality of Service & E-2-E Performance in MM Systems

May 2004 Q.G/16 Work and Study Items Highlights o Investigate confidentiality and privacy of all signaling o Address centralized key management for MM systems o Security for MM Mobility o Optimize voice encryption, develop video encryption o MM security support for emergency services o Consolidate or develop new security profiles o Security interworking H.323-SIP

May 2004 Emergency Telecommunication Services (ETS) Security for MM Applications and Systems o 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 o H.SETS : provisional title for a new work item under study in Q.G/16 - focus on the multimedia security aspects of ETS

May 2004 (8)Multimedia (MM) ITU-T Study Group 16 MediaCom 2004 objective o 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

May 2004 MEDIACOM 2004 Framework in SG16 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 FSA Framework Study Areas

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

May 2004 MM Element Interdependence User perspective Equipment/protocol perspective

May 2004 Other IP related resources o IP Policy Manual see itu.int/ITU-T/special-projects/ip-policy o PP-02 Resolution 102 o ITU-T Workshops see itu.int/ITU-T/worksem o ITU-T and ICANN reform see itu.int/ITU-T/tsb-director/itut-icann