PPT Presentation

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ITU-T IP Related Studies
Arshey Odedra ITU-T TSB Engineer
arshey.odedra_at_itu.int International
Telecommunication UnionITU-T Seminar Botswana
24-26 July 2002
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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)

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(1) The ITU-T IP Project

• ITU-T IP Project Cover IP related ITU-T work
• Project Doc Issue 4 SG13 Website

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Scope of the Project
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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

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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

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SG13 Future Plans

• SGs continue to build links with the IETF
• SG13 develop and manage the IP Project

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(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

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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

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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.

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(3) IP Cable Communnications

• IPCablecom (SG9)
• Defines architecture and interface specs
• ? interactive services over cable television
  network using IP
• Market driver IP telephony

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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

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

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(4)IP-QoS/Performance

• QoS Classes Basis for IP Network QoS Control
• IP QoS control ?IP/PSTN network convergence
• Y.1541(05/2002)
• Y.1540I.380
• ? QoS signaling protocols ? Y.1541

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QoS Parameters
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Some Discussion topics on IP Network QoS Control

• Harmonised IP QoS signaling
• Interworking IP QoS mechanisms

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(5) IP-Optical Network Performance Aspects

• IP-Optical Networks Motivation
• - Infrastructure Attributes
• - Capabilities
• - Operational Benefits

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IP/Optical NetworksPerformance 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

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IPPM and Question 6/13

• 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?

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(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?)

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(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

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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

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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 andnetwork architecture
• Q.7/SSG Convergence of fixed and existing
  IMT-2000 systems

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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
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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

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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

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(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

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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
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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)

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MM Element Interdependence
User perspective
Equipment/protocol perspective
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GENEVA
THANK YOU