ITU-T X-Series Recommendations

(last updated: 1-Nov-2000 12:27)
 

Series X: Data Networks and Open System Communication

Public Data Networks - Services and Facilities

  1. X.1 (03/00)
    International user classes of service in, and categories of access to, public data networks and integrated services digital networks (ISDNs).
     
  2. X.2 (03/00)
    International data transmission services and optional user facilities in public data networks and ISDNs.
     
  3. X.3 (03/00)
    Packet assembly/disassembly facility (PAD) in a public data network.
     
  4. X.4 (11/88)
    General structure of signals of International Alphabet No. 5 code for character oriented data transmission over public data networks.
     
  5. X.5 (10/96)
    Facsimile packet assembly/disassembly facility (FPAD) in a public data network.
     
  6. X.6 (08/97) + Ammend 1 (03/00)
    Multicast service definition.
     
  7. X.7 (03/00)
    Technical characteristics of data transmission services.
     
  8. X.8 (07/94)
    Multi-aspect PAD (MAP) framework and service definition.
     
  9. X.10 (1993)
    Categories of access for data terminal equipment (DTE) to public data transmission services.

Interfaces

  1. X.20 (11/88)
    Interface between data terminal equipment (DTE) and data circuit-terminating equipment (DCE) for start-stop transmission services on public data networks.
     
  2. X.20 bis (11/88)
    Use on public data networks of data terminal equipment (DTE) which is designed for interfacing to asynchronous duplex V-Series modems.
     
  3. X.21 (09/92)
    Interface between data terminal equipment and data circuit-terminating equipment for synchronous operation on public data networks.
     
  4. X.21 bis (11/88)
    Use on public data networks of data terminal equipment (DTE) which is designed for interfacing to synchronous V-Series modems.
     
  5. X.22 (11/88)
    Multiplex DTE/DCE interface for user classes 3-6.
     
  6. X.24 (11/88)
    List of definitions for interchange circuits between data terminal equipment (DTE) and data circuit-terminating equipment (DCE) on public data networks.
     
  7. X.25 (10/96) + Corr 1 (09/98)
    Interface between data terminal equipment (DTE) and data circuit-terminating equipment (DCE) for terminals operating in the packet mode and connected to public data networks by dedicated circuit.
     
  8. X.26 (03/93) (same as V.10)
    Electrical characteristics for unbalanced double-current interchange circuits operating at data signalling rates nominally up to 100 kbit/s.
     
  9. X.27 (10/96) (same as V.11)
    Electrical characteristics for balanced double-current interchange circuits operating at data signalling rates up to 10 Mbit/s.
     
  10. X.28 (12/97) + Ammend 1 (03/00)
    DTE/DCE interface for a start-stop mode data terminal equipment accessing the packet assembly/disassembly facility (PAD) in a public data network situated in the same country.
     
  11. X.29 (12/97)
    Procedures for the exchange of control information and user data between a packet assembly/disassembly (PAD) facility and a packet mode DTE or another PAD.
     
  12. X.30 (03/93) (same as I.461)
    Support of X.21, X.21 bis and X.20 bis based data terminal equipments (DTEs) by an integrated services digital network (ISDN).
     
  13. X.31 (11/95) (same as I.462)
    Support of packet mode terminal equipment by an ISDN.
     
  14. X.32 (10/96)
    Interface between DTE and DCE for terminals operating in the packet mode and accessing a packet switched public data network through a public switched telephone network or an integrated services digital network or a circuit switched public data network.
     
  15. X.33 (10/96)
    Access to packet switched data transmission services via frame relaying data transmission services.
     
  16. X.34 (10/96) + Corr 1 (03/00)
    Access to packet switched data transmission services via B-ISDN.
     
  17. X.35 (11/93)
    Interface between a PSPDN and a private PSDN which is based on X.25 procedures and enhancements to define a gateway function that is provided in the PSPDN.
     
  18. X.36 (03/00)
    Interface between Data Terminal Equipment (DTE) and Data Circuit-terminating Equipment (DCE) for public data networks providing frame relay data transmission service by dedicated circuit.
     
  19. X.37 (04/95)
    Encapsulation in X.25 packets of various protocols including frame relay.
     
  20. X.38 (10/96)
    G3 facsimile equipment/DCE interface for G3 facsimile equipment accessing the facsimile packet assembly/disassembly facility (FPAD) in a public data network situated in the same country.
     
  21. X.39 (10/96)
    Procedures for the exchange of control information and user data between a facsimile packet assembly/disassembly (FPAD) facility and a packet mode data terminal equipment (DTE) or another FPAD.
     
  22. X.42 (03/00)
    Procedures and methods for accessing a Public Data Network from a DTE operating under control of a generalized polling protocol.
     
  23. X.45 (10/96)
    Interface between Data Terminal Equipment (DTE) and Data Circuit-terminating equipment for terminals operating in the packet mode and connected to public data networks, designed for efficiency at higher speeds.
     
  24. X.46 (09/98)
    Access to FRDTS via B-ISDN.
     
  25. X.48 (10/96)
    Procedures for the provision of a basic multicsast service for Data Terminal Equipments (DTEs) using Recommendation X.25.
     
  26. X.49 (10/96)
    Procedures for the provision of an extended multicast service for Data Terminal Equipments (DTEs) using Recommendation X.25.

Transmission, Signalling and Switching

  1. X.50 (11/88)
    Fundamental parameters of a multiplexing scheme for the international interface between synchronous data networks.
     
  2. X.50 bis (11/88)
    Fundamental parameters of a 48-kbit/s user data signalling rate transmission scheme for the international interface between synchronous data networks.
     
  3. X.51 (11/88)
    Fundamental parameters of a multiplexing scheme for the international interface between synchronous data networks using 10-bit envelope structure.
     
  4. X.51 bis (11/88)
    Fundamental parameters of a 48-kbit/s user data signalling rate transmission scheme for the international interface between synchronous data networks using 10-bit envelope structure.
     
  5. X.52 (11/88)
    Method of encoding anisochronous signals into a synchronous user bearer.
     
  6. X.53 (03/93)
    Numbering of channels on international multiplex links at 64 kbit/s.
     
  7. X.54 (11/88)
    Allocation of channels on international multiplex links at 64 kbit/s.
     
  8. X.55 (11/88)
    Interface between synchronous data networks using a 6 + 2 envelope structure and single channel per carrier (SCPC) satellite channels.
     
  9. X.56 (11/88)
    Interface between synchronous data networks using an 8 + 2 envelope structure and single channel per carrier (SCPC) satellite channels.
     
  10. X.57 (11/88)

     
  11. Method of transmitting a single lower speed data channel on a 64 kbit/s data stream.
     
  12. X.58 (11/88)
    Fundamental parameters of a multiplexing scheme for the international interface between synchronous non-switched data networks using no envelope structure.
     
  13. X.60 (11/88)
    Common channel signalling for circuit switched data applications.
     
  14. X.61 (11/88) (same as Q.741)
    Signalling System No. 7 - Data user part.
     
  15. X.70 (11/88)
    Terminal and transit control signalling system for start-stop services on international circuits between anisochronous data networks.
     
  16. X.71 (11/88)
    Decentralized terminal and transit control signalling system on international circuits between synchronous data networks.
     
  17. X.75 (10/96) + Corr 1 (09/98)
    Packet-switched signalling system between public networks providing data transmission services.
     
  18. X.76 (03/00)
    Network-to-network interface between public data networks providing the frame relay data transmission service.
     
  19. X.77 (08/97) + Corr 1 (03/00)
    Interworking Between PSPDNs via B-ISDN.
     
  20. X.78 (06/99) + Corr 1 (03/00)
    Interworking Procedures Between Networks Providing Frame Relay Data Transmission Services via B-ISDN.
     
  21. X.80 (11/88)
    Interworking of interexchange signalling systems for circuit switched data services.
     
  22. X.81 (11/88)
    Interworking between an ISDN circuit-switched and a circuit-switched public data network (CSPDN).
     
  23. X.82 (11/88)
    Detailed arrangements for interworking between CSPDNs and PSPDNs based on Recommendation T.70.
     
  24. X.85 (03/00)
    IP Over SDH Using LAPS.

Network Aspects

  1. X.92 (11/88)
    Hypothetical reference connections for public synchronous data networks.
     
  2. X.96 (03/00)
    Call progress signals in public data networks.
     
  3. X.110 (10/96)
    International routing principles and routing plan for public data networks.
     
  4. X.115 (04/95) + Ammend 1 (10/96)
    Definition of address translation capability in public data networks.
     
  5. X.116 (10/96)
    Address translation registration and resolution protocol.
     
  6. X.121 (10/96)
    International numbering plan for public data networks.
     
  7. X.122 (03/98) (same as E.166)
    Numbering plan interworking for the E.164 and X.121 numbering plans.
     
  8. X.123 (10/96)
    Mapping between escape codes and TOA/NPI for E.164/X.121 numbering plan interworking during the transition period.
     
  9. X.124 (06/99)
    Arrangements for the Interworking of the E.164 and X.121 Numbering Plans for Frame Relay and ATM Networks.
     
  10. X.125 (09/98)
    Procedure for the Notification of the Assignment of International Network Identification Codes for Public Frame Relay Data Networks and ATM Networks Numbered Under the E.164 Numbering Plan.
     
  11. X.130 (11/88)
    Call processing delays in public data networks when providing international synchronous circuit-switched data services.
     
  12. X.131 (11/88)
    Call blocking in public data networks when providing international synchronous circuit-switched data services.
     
  13. X.134 (08/97)
    Portion boundaries and packet layer reference events: basis for defining packet-switched performance parameters.
     
  14. X.135 (08/97)
    Speed of service (delay and throughput) performance values for public data networks when providing international packet-switched services.
     
  15. X.136 (08/97)
    Accuracy and dependability performance values for public data networks when providing international packet-switched services.
     
  16. X.137 (08/97)
    Availability performance values for public data networks when providing international packet-switched services.
     
  17. X.138 (08/97)
    Measurement of performance values for public data networks when providing international packet-switched services.
     
  18. X.139 (08/97)
    Echo, drop, generator and test DTEs for measurement of performance values in public data networks when providing international packet-switched services.
     
  19. X.140 (09/92)
    General quality of service parameters for communication via public data networks.
     
  20. X.141 (11/88) + Corr (06/90)
    General principles for the detection and correction of errors in public data networks.
     
  21. X.144 (04/95) + Ammend 1 (08/97)
    User information transfer performance parameters for data networks providing international frame relay PVC service.
     
  22. X.145 (10/96)
    Performance for data networks providing international frame relay SVC service.
     
  23. X.146 (09/98)
    Performance Objectives and Quality of Service Classes Applicable to Frame Relay.

Maintenance

  1. X.150 (11/88)
    Principles of maintenance testing for public data networks using data terminal equipment (DTE) and data circuit-terminating equipment (DCE) test loops.
     
  2. X.160 (10/96)
    Architecture for customer network management service for public data networks.
     
  3. X.161 (08/97)
    Definition of customer network management services for public data networks.
     
  4. X.162 (03/00)
    Definition of management information for customer network management service for public data networks to be used with the CNMc interface.
     
  5. X.163 (04/95)
    Definition of management information for customer network management service for public data networks to be used with the CNMe interface.
     
  6. X.170 (06/99)
    Network-Network Management Architecture for Data Networks.
     
  7. X.171 (03/00)
    Network-Network Management Services for Data Networks.

Administrative Arrangements

  1. X.180 (11/88)
    Administrative arrangements for international closed user groups (CUGs).
     
  2. X.181 (11/88)
    Administrative arrangements for the provision of international permanent virtual circuits (PVCs).

Open Systems Interconnection - General - Model and Notation

  1. X.200 (07/94)
    Information technology - Open Systems Interconnection - Basic reference model: The basic model.
     
  2. X.207 (11/93)
    Information technology - Open Systems Interconnection - Application layer structure.
     
  3. X.208 (11/88)
    Specification of Abstract Syntax Notation One (ASN.1).
     
  4. X.209 (11/88)
    Specification of basic encoding rules for Abstract Syntax Notation One (ASN.1).

Service Definitions

  1. X.210 (11/93)
    Information technology - Open systems interconnection - Basic reference model - Conventions for the definition of OSI services.
     
  2. X.211 (11/95)
    Information technology - Open Systems Interconnection - Physical service definition.
     
  3. X.212 (11/95)
    Information technology - Open Systems Interconnection - Data link service definition.
     
  4. X.213 (11/95) + Ammend 1 (08/97) + Ammend 2 (03/00)
    Information technology - Open Systems Interconnection - Network service definition.
     
  5. X.214 (11/95)
    Information technology - Open Systems Interconnection - Transport service definition.
     
  6. X.215 (11/95) + Addendum 1 (11/95) + Ammend 1 (08/97) + Ammend 2 (12/97) + Corr 1 (03/00)
    Information technology - Open Systems Interconnection - Session service definition.
     
  7. X.216 (07/94) + Addendum 1 (11/95) + Ammend 1 (08/97) + Ammend 2 (12/97)
    Information technology - Open Systems Interconnection - Presentation service definition.
     
  8. X.217 (04/95) + Ammend 1 (10/96) + Ammend 2 (08/97)
    Service definition for the association control service element.
     
  9. X.217 bis (09/98)
    Service Definition for the Application Service Object - Association Control Service Element.
     
  10. X.218 (03/93)
    Reliable transfer: Model and service definition.
     
  11. X.219 (11/88)
    Remote operations: Model, notation and service definition.

Connection-Mode Protocol Specifications

  1. X.220 (03/93)
    Use of X.200-Series protocols in CCITT Applications.
     
  2. X.222 (04/95) + Ammend 1 (10/96)
    Use of X.25 LAPB-compatible data link procedures to provide the OSI Connection-mode Data Link service.
     
  3. X.223 (11/93) + Ammend 1 (10/96)
    Use of X.25 to provide the OSI connection-mode network service for ITU-T applications.
     
  4. X.224 (11/95) + Ammend 1 (08/97)
    Protocol for providing the OSI connection-mode transport service.
     
  5. X.225 (11/95) + Addend 1 (11/95) + Ammend 1 (08/97) + Ammend 2 (12/97) + Corr 1 (03/00)
    Information technology - Open Systems Interconnection - Connection-oriented session protocol: Protocol specification.
     
  6. X.226 (07/94) + Addend 1 (11/95) + Ammend 1 (08/97) + Ammend 2 (12/97)
    Information technology - Open Systems Interconnection - Connection-oriented presentation protocol: Protocol specification.
     
  7. X.227 (04/95) + Ammend 1 (10/96) + Ammend 2 (08/97)
    Connection-oriented protocol for the association control service element: Protocol specification.
     
  8. X.227 bis (09/98)
    Connection-Mode Protocol for the Application Service Object Association Control Service Element.
     
  9. X.228 (11/88) + Corr 1 (03/00)
    Reliable transfer: Protocol specification.
     
  10. X.229 (11/88)
    Remote operations: Protocol specification.

Connectionless-Mode Protocol Specifications

  1. X.233 (08/97)
    Information technology - Protocol for providing the connectionless-mode network service: protocol specification.
     
  2. X.234 (07/94) + Ammend 1 (11/95)
    Information technology - Protocol for providing the OSI connectionless-mode transport service.
     
  3. X.235 (04/95) + Ammend 1 (06/99)
    Information technology - Open Systems Interconnection - Connectionless Session protocol: Protocol specification.
     
  4. X.236 (04/95) + Ammend 1 (06/99)
    Information technology - Open Systems Interconnection - Connectionless presentation protocol: Protocol specification.
     
  5. X.237 (04/95) + Ammend 1 (10/96) + Corr/Ammend 1 (06/99)
    Information technology - Open Systems Interconnection - Connectionless protocol for the association control service element: Protocol specification.
     
  6. X.237 bis (09/98)
    Connectionless Protocol for the Application Service Object Association Control Service Element.

Miscellaneous

  1. X.244 (1988)
    Procedure for the exchange of protocol identification during virtual call establishment on packet switched public data networks.

PICS Proformas

  1. X.245 (04/95)
    Information technology - Open Systems Interconnection - Connection-oriented Session protocol: Protocol Implementation Conformance Statement (PICS) proforma.
     
  2. X.246 (10/96)
    Information technology - Open Systems Interconnection - Connection-oriented presentation protocol: Protocol Implementation Conformance Statement (PICS) proforma.
     
  3. X.247 (10/96)
    Information technology - Open Systems Interconnection - Protocol specification for the association control service element: Protocol implementation conformance statement (PICS) proforma.
     
  4. X.248 (11/95)
    Information technology - Open Systems Interconnection - Reliable transfer: Protocol implementation conformance statement (PICS) proforma.
     
  5. X.249 (11/95)
    Information technology - Open Systems Interconnection - Remote operations: Protocol implementation conformance statement (PICS) proforma.
     
  6. X.255 (04/95)
    Information technology - Open Systems Interconnection - Connectionless session protocol: Protocol Implementation Conformance Statement (PICS) proforma.
     
  7. X.256 (04/95)
    Information technology - Open Systems Interconnection - Connectionless presentation protocol: Prototocol Implementation Conformance Statement (PICS) proforma.
     
  8. X.257 (04/95) + Ammend 1 (10/96)
    Information technology - Open Systems Interconnection - Connectionless protocol for the association control service element: Protocol Implementation Conformance Statement (PICS) proforma.

Protocol Identification

  1. X.260 (10/96)
    Information technology - Framework for protocol identification and encapsulation.
     
  2. X.263 (09/98)
    Information technology - Protocol identification in the Network Layer.
     
  3. X.264 (11/93)
    Transport protocol identification mechanism.

Security Protocols

  1. X.272 (03/00)
    Data Compression and Privacy Over Frame Relay Networks.
     
  2. X.273 (07/94)
    Information technology - Open Systems Interconnection - Network layer security protocol.
     
  3. X.274 (07/94)
    Information technology - Telecommunication and information exchange between systems - Transport layer security protocol.

Layer Managed Objects

  1. X.281 (06/99)
    Information technology - Elements of management information related to the OSI Physical Layer.
     
  2. X.282 (06/99) + Ammend 1 (10/96)
    Elements of management information related to the OSI data link layer.
     
  3. X.283 (12/97) + Ammend 1 (10/96) + Corr 1 (04/96)
    Elements of management information related to the OSI network layer.
     
  4. X.284 (12/97) + Ammend 1 (11/95) + Ammend 2 (10/96)
    Elements of management information related to the OSI transport layer.
     
  5. X.287 (03/99)
    Structure of Management Information: Managed Objects for Supporting Upper Layers.

Conformance Testing

  1. X.290 (04/95)
    OSI conformance testing methodology and framework for protocol Recommendations for ITU-T applications - General concepts.
     
  2. X.291 (04/95)
    OSI conformance testing methodology and framework for protocol Recommendations for ITU-T applications - Abstract test suite specification.
     
  3. X.292 (09/98)
    OSI conformance testing methodology and framework for protocol Recommendations for ITU-T applications - The tree and tabular combined notation (TTCN).
     
  4. X.293 (04/95)
    OSI conformance testing methodology and framework for protocol Recommendations for ITU-T applications - Test realization.
     
  5. X.294 (04/95)
    OSI conformance testing methodology and framework for protocol Recommendations for ITU-T applications - Requirements on test laboratories and clients for the conformance assessment process.
     
  6. X.295 (04/95)
    OSI conformance testing methodology and framework for protocol Recommendations for ITU-T applications - Protocol profile test specification.
     
  7. X.296 (11/95)
    OSO conformance testing methodology and framework for protocol Recommendations for ITU-T applications - Implementation conformance statements.

Interworking Between Networks - General

  1. X.300 (10/96)
    General principles for interworking between public networks and between public networks and other networks for the provision of data transmission services.
     
  2. X.301 (10/96)
    Description of the general arrangements for call control within a subnetwork and between subnetworks for the provision of data transmission services.
     
  3. X.302 (11/88)
    Description of the general arrangements for internal network utilities within a subnetwork and intermediate utilities between subnetworks for the provision of data transmission services.
     
  4. X.305 (11/88)
    Functionalities of subnetworks relating to the support of the OSI connection-mode network service.
     
  5. X.320 (10/96)
    General arrangements for interworking between integrated services digital networks (ISDNs) for the provision of data transmission services.
     
  6. X.321 (10/96) (same as I.540)
    General arrangements for interworking between circuit-switched public data networks (CSPDNs) and integrated service digital networks (ISDNs) for the provision of data transmission services.
     
  7. X.322 (11/88)
    General arrangements for interworking between packet switched public data networks (PSPDNs) and circuit switched public data networks (CSPDNs) for the provision of data transmission services.
     
  8. X.323 (11/88)
    General arrangements for interworking between packet switched public data networks (PSPDNs).
     
  9. X.324 (11/88)
    General arrangements for interworking between packet switched public data networks (PSPDNs) and public mobile systems for the provision of data transmission services.
     
  10. X.325 (10/96) (same as I.550)
    General arrangements for interworking between packet switched public data networks (PSPDNs) and integrated services digital networks (ISDNs) for the provision of data transmission services.
     
  11. X.326 (11/88)
    General arrangements for interworking between packet switched public data networks (PSPDNs) and common channel signalling network (CCSN).
     
  12. X.327 (11/93)
    General arrangements for interworking between packet switched public data networks (PSPDNs) and private data networks for the provision of data transmission services.
     
  13. X.328 (10/96)
    General arrangements for interworking between public data networks providing frame relay data transmission services and Integrated Services Digital Networks (ISDNs) for the provision of data transmission services.
     
  14. X.329 (03/00)
    General Arrangements for Interworking Between Networks Providing Frame Relay Data Transmission Services and B-ISDN.
     
  15. X.340 (03/93)
    General arrangements for interworking between a packet switched public data network (PSPDN) and the international telex network.

Satellite Data Transmission Systems

  1. X.350 (12/97)
    General interworking requirements to be met for data transmission in international public mobile satellite systems.
     
  2. X.351 (11/88)
    Special requirements to be met for packet assembly/disassembly facilities (PADs) located at or in association with coast earth stations in the public mobile satellite service.
     
  3. X.352 (11/88)
    Interworking between packet switched public data networks and public maritime mobile satellite data transmission systems.
     
  4. X.353 (11/88)
    Routing principles for interconnecting public maritime mobile satellite data transmission systems with public data networks.
     
  5. X.361 (10/96)
    Connection of VSAT systems with Packet-Switched Public Data Networks based on X.25 procedures.

Management

  1. X.370 (1988)
    Arrangements for the transfer of internetwork management information.

Message Handling Systems

  1. X.400 (06/99) (same as F.400)
    Message handling services: Message handling system and service overview.
     
  2. X.402 (06/99)
    Message handling systems: Overall architecture.
     
  3. X.403 (1988)
    Message handling systems: Conformance testing.
     
  4. X.404 (06/99)
    Message Handling Systems: MHS Routing - Guide for Messaging Systems Managers.
     
  5. X.407 (1988)
    Message handling systems: Abstract service definition conventions.
     
  6. X.408 (11/88)
    Message handling systems: Encoded information type conversion rules.
     
  7. X.411 (06/99)
    Message handling systems - Message transfer system: Abstract service definition and procedures.
     
  8. X.412 (06/99)
    Message Handling Systems - MHS Routing.
     
  9. X.413 (06/99)
    Message handling systems - Message store: Abstract-service definition.
     
  10. X.419 (06/99)
    Message handling systems - Protocol specifications.
     
  11. X.420 (06/99)
    Message handling systems: Interpersonal messaging system.
     
  12. X.421 (06/99)
    Message handling systems: COMFAX use of MHS.
     
  13. X.435 (06/99)
    Message handling systems: Electronic data interchange messaging system.
     
  14. X.440 (06/99)
    Message handling systems: Voice messaging system.
     
  15. X.445 (04/95)
    Asynchronous protocol specification - Provision of OSI connection mode network service over the telephone network.
     
  16. X.446 (08/97)
    Common Messaging Call API.
     
  17. X.460 (04/95)
    Information technology - Message Handling Systems (MHS) management Model and architecture.
     
  18. X.462 (10/96)
    Information technology - Message Handling Systems (MHS) management: Logging information.
     
  19. X.467 (10/96)
    Information technology - Message Handling Systems (MHS) management: Message transfer agent management.
     
  20. X.480 (09/92)
    Message handling systems and directory services - Conformance testing.
     
  21. X.481 (06/99)
    P2 protocol: Protocol implementation conformance statement (PICS) proforma.
     
  22. X.482 (06/99)
    Message Handling Systems - P1 Protocol - Protocol implementation conformance statement (PICS) proforma.
     
  23. X.483 (06/99)
    Message Handling Systems - P3 Protocol - Protocol implementation conformance statement (PICS) proforma.
     
  24. X.484 (06/99)
    Message Handling Systems - P7 protocol - Protocol implementation conformance statement (PICS) proforma.
     
  25. X.485 (09/92)
    Message handling systems: Voice messaging system protocol implementation conformance statement (PICS) proforma.
     
  26. X.486 (06/99)
    Message Handling Systems: Pedi protocol PICS proforma.
     
  27. X.487 (06/99)
    Message Handling Systems - IPM-MS Attributes PICS Proforma.
     
  28. X.488 (06/99)
    Message Handling Systems - EDI-MS Attributes PICS Proforma.

Directory

  1. X.500 (08/97) + Ammend 1 (03/00)
    Information technology - Open systems Interconnection - The Directory: Overview of concepts, models and services.
     
  2. X.501 (08/97) + Ammend 1 (03/00) + Corr 1 (03/00)
    Information Technology - Open Systems Interconnection - The Directory: Models.
     
  3. X.509 (03/00)
    Information technology - Open Systems Interconnection - The Directory: Authentication framework.
     
  4. X.511 (08/97) + Ammend 1 (03/00) + Corr 1 (03/00)
    Information technology - Open Systems Interconnection - The Directory: Abstract service definition.
     
  5. X.518 (08/97) + Ammend 1 (03/00) + Corr 1 (03/00)
    Information technology - Open Systems Interconnection - The Directory: Procedures for distributed operation.
     
  6. X.519 (08/97) + Ammend 1 (03/00) + Corr 1 (03/00)
    Information technology - Open Systems Interconnection - The Directory: Protocol specifications.
     
  7. X.520 (08/97) + Ammend 1 (03/00) + Corr 1 (03/00)
    Information technology - Open Systems Interconnection - The Directory: Selected attribute types.
     
  8. X.521 (08/97) + Ammend 1 (03/00)
    Information technology - Open Systems Interconnection - The Directory: Selected object classes.
     
  9. X.525 (08/97) + Ammend 1 (03/00) + Corr 1 (03/00)
    Information technology - Open Systems Interconnection - The Directory: Replication.
     
  10. X.530 (08/97)
    Information Technology - Open Systems Interconnection - The Directory: Use of Systems Management for Administration of the Directory.
     
  11. X.581 (11/95)
    Directory access protocol - Protocol implementation conformance statement (PICS).
     
  12. X.582 (11/95)
    Directory system protocol - Protocol implementation conformance statement (PICS).
     
  13. X.583 (12/97)
    The Directory: Protocol Implementation Conformance Statement (PICS) Proforma for the Directory Access Protocol.
     
  14. X.584 (12/97)
    The Directory: Protocol Implementation Conformance Statement (PICS) Proforma for the Directory System Protocol.
     
  15. X.585 (12/97)
    The Directory: Protocol Implementation Conformance Statement (PICS) Proforma for the Directory Operational Binding Management Protocol.
     
  16. X.586 (12/97)
    The Directory: Protocol Implementation Conformance Statement (PICS) Proforma for the Directory Information Shadowing Protocol.

OSI Networking and System Aspects - Networking

  1. X.601 (03/00)
    Multi-Peer Communications Framework.
     
  2. X.605 (09/98)
    Enhanced Communications Transport Service Definition.
     
  3. X.610 (09/92)
    Provision and support of the OSI connection-mode network service.
     
  4. X.612 (09/92)
    Information technology - Provision of the OSI connection-mode network service by packet-mode terminal equipment connected to an integrated services digital network (ISDN).
     
  5. X.613 (09/92)
    Information technology - Use of X.25 packet layer protocol in conjunction with X.21/X.21 bis to provide the OSI connection-mode network service.
     
  6. X.614 (09/92)
    Information technology - Use of X.25 packet layer protocol to provide the OSI connection-mode network service over the telephone network.
     
  7. X.622 (07/94)
    Information technology - Protocol for providing the connectionless-mode network service: Provision of the underlying service by an X.25 Subnetwork.
     
  8. X.623 (07/94)
    Information technology - Protocol for providing the connectionless-mode network service: Provision of the underlying service by a subnetwork that provides the OSI data link service.
     
  9. X.625 (10/96)
    Information technology - Protocol for providing the connectionless-mode network service: Provision of the underlying service by ISDN circuit-switched B-channels.

Efficiency

  1. X.630 (09/98)
    Efficient Open Systems Interconnection (OSI) Operations.
     
  2. X.633 (10/96) + Addendum 1 (09/98)
    Information technology - Open systems interconnection - Network Fast Byte protocol.
     
  3. X.634 (10/96) + Addendum 1 (09/98)
    Information technology - Open systems interconnection - Transport Fast Byte protocol.
     
  4. X.637 (10/96)
    Basic connection-oriented comon upper layer requirements.
     
  5. X.638 (10/96)
    Minimal OSI facilities to support basic communications applications.
     
  6. X.639 (10/96)
    Basic connection-oriented requirements for ROSE-based profiles.
     
  7. X.641 (12/97)
    Quality of Service: Framework.
     
  8. X.642 (09/98)
    Quality of Service - Guide to Methods and Mechanisms.

Naming, Addressing and Registration

  1. X.650 (10/96)
    Information Technology - Open Systems Interconnection (OSI) - Basic Reference Model: Naming and addressing.
     
  2. X.660 (09/92) + Ammend 1 (10/96) + Ammend 2 (08/97)
    Information technology - Open Systems Interconnection - Procedures for the operation of OSI Registration Authorities - General procedures.
     
  3. X.662 (08/97)
    Procedures for the Operation of OSI Registration Authorities: Registration of Values of RH-name-tree Components for Joint ISO and ITU-T Use.
     
  4. X.665 (09/92)
    Information technology - Open Systems Interconnection - Procedures for the operation of OSI Registration Authorities: Application processes and application entities.
     
  5. X.666 (08/97)
    Procedures for registration of international and multinational organization names.
     
  6. X.669 (10/96) + Corr 1 (06/99)
    Procedures for the operation of OSI registration authorities: Registration procedures for the ITU-T subordinate arcs.
     
  7. X.670 (10/96)
    Procedures for registration agents operating on behalf of organizations to register organization names subordinate to country names.
     
  8. X.671 (10/96)
    Procedures for a registration authority operating on behalf of countries to register organization names subordinate to country names.

Abstract Syntax Notation One (ASN.1)

  1. X.680 (12/97) + Ammend 1 (06/99) + Ammend 2 (06/99) + Corr 1 (06/99) + Corr 2 (03/00)
    Information technology - Abstract Syntax Notation One (ASN.1): Specification of basic notation.
     
  2. X.681 (12/97) + Ammend 1 (06/99) + Corr 1 (06/99)
    Information technology - Abstract Syntax Notation One (ASN.1): Information object specification.
     
  3. X.682 (12/97) + Corr 1 (03/00)
    Information technology - Abstract Syntax Notation One (ASN.1): Constraint specification.
     
  4. X.683 (12/97) + Ammend 1 (06/99)
    Information technology - Abstract Syntax Notation One (ASN.1): Parameterization of ASN.1 specifications.
     
  5. X.690 (12/97) + Ammend 1 (06/99) + Corr 1 (06/99)
    Information technology - ASN.1 encoding rules: Specification of Basic Encoding Rules (BER), Canonical Encoding Rules (CER) and Distinguished Encoding Rules (DER).
     
  6. X.691 (12/97) + Ammend 1 (06/99) + Corr 1 (06/99)
    Information technology - ASN.1 encoding rules - Specification of Packed Encoding Rules (PER).

Systems Management Framework and Architecture

  1. X.700 (09/92)
    Management framework for Open Systems Interconnection (OSI) for CCITT applications.
     
  2. X.701 (08/97)
    Information technology - Open Systems Interconnection - Systems management overview.
     
  3. X.702 (11/95)
    Information technology - Open Systems Interconnection - Application context for systems management with transaction processing.
     
  4. X.703 (10/97) + Ammend 1 (06/98)
    Information Technology - Open Distributed Management Architecture.

Management Communication Service and Protocol

  1. X.710 (10/97)
    Common management information service definition for CCITT applications.
     
  2. X.711 (10/97) + Corr 1 (03/99)
    Common management information protocol specification for CCITT applications.
     
  3. X.712 (09/92) + Corr 1 and 2 (10/96) + Corr 3 (06/98)
    Information technology - Open Systems Interconnection - Common management information protocol: Protocol implementation conformance statement (PICS) proforma.

Structure of Management Information

  1. X.720 (01/92) + Ammend 1 (11/95) + Corr 1 (02/94)
    Information technology - Open Systems Interconnection - Structure of management information: Management information model.
     
  2. X.721 (02/92) + Corr 1 (02/94) + Corr 2 (10/96) + Corr 3 (06/98)
    Information technology - Open Systems Interconnection - Structure of management information: Definition of management information.
     
  3. X.722 (01/92) + Ammend 1 (11/95) + Corr 1 (10/96) + Ammend 2 (08/97) + Ammend 3 (08/97)
    Information technology - Open Systems Interconnection - Structure of Management Information: Guidelines for the definition of managed objects.
     
  4. X.723 (11/93) + Corr 1 06/98)
    Information technology - Open Systems Interconnection - Structure of management information: Generic management information.
     
  5. X.724 (10/96)
    Information technology - Open Systems Interconnection - Structure of management information: Requirements and guidelines for implementation conformance statement proformas associated with OSI management.
     
  6. X.725 (11/95)
    Information technology - Open Systems Interconnection - Structure of Management Information: General Relationship Model.
     
  7. X.727 (03/99)
    Structure of Management Information: Systems Management Application Layer Managed Objects.

Management Functions

  1. X.730 (01/92) + Ammend/Corr 1 (10/96) + Ammend 1 (04/95)
    Information technology - Open Systems Interconnection - Systems Management: Object management function.
     
  2. X.731 (01/92) + Ammend/Corr 1 (10/96) + Corr 1 (04/95) + Ammend 1 (04/95)
    Information technology - Open Systems Interconnection - Systems Management: State management function.
     
  3. X.732 (01/92) + Ammend 1 (04/95) + Ammend/Corr 1 (10/96)
    Information technology - Open Systems Interconnection - Systems Management: Attributes for representing relationships.
     
  4. X.733 (02/92) + Ammend 1 (04/95) + Ammend/Corr 1 (10/96) + Corr 1 (02/94) + Corr 2 (03/99)
    Information technology - Open Systems Interconnection - Systems Management: Alarm reporting function.
     
  5. X.734 (09/92) + Ammend/Corr 1 (10/96) + Corr 1 (02/94) + Ammend 1 (04/95) + Corr 2 (03/99)
    Information technology - Open Systems Interconnection - Systems Management: Event report management function.
     
  6. X.735 (09/92) + Ammend 1 (04/95) + Ammend/Corr 1 (10/96)
    Information technology - Open Systems Interconnection - Systems Management: Log control function.
     
  7. X.736 (01/92) + Ammend/Corr 1 (10/96) + Ammend 1 (04/95)
    Information technology - Open Systems Interconnection - Systems Management: Security alarm reporting function.
     
  8. X.737 (11/95) + Corr 1 (06/98)
    Information technology - Open Systems Interconnection - Systems management: Confidence and diagnostic test categories.
     
  9. X.738 (11/93) + Ammend 1 (10/96) + Corr 1 (06/98)
    Information technology - Open Systems Interconnection - Systems management: Summarization function.
     
  10. X.739 (11/93) + Ammend 1 (08/97) + Corr 1 (06/98)
    Information technology - Open Systems Interconnection - Systems Management: Metric objects and attributes.
     
  11. X.740 (09/92) + Corr 1 (04/95) + Corr 2 (10/96) + Corr 3 (06/98)
    Information technology - Open Systems Interconnection - Systems Management: Security audit trail function.
     
  12. X.741 (04/95) + Corr 1 (10/96) + Corr 2 (06/98)
    Information technology - Open Systems Interconnection - Systems management: Objects and attributes for access control.
     
  13. X.742 (04/95) + Ammend 1 (10/97) + Corr 1 (06/98)
    Information tedchnology - Open Systems Interconnection - Systems management: Usage metering function for accounting purposes.
     
  14. X.743 (06/98)
    Systems Management: Time Management Function.
     
  15. X.744 (10/96) + Corr 1 (06/98)
    Information technology - Open Systems Interconnection - Systems management: Software management function.
     
  16. X.745 (11/93) + Corr 1 (08/97) + Corr 2 (06/98)
    Information technology - Open Systems Interconnection - Systems Management: Test management function.
     
  17. X.746 (02/00)
    Information technology - Open Systems Interconnection - Systems management: Scheduling function.
     
  18. X.748 (03/99)
    Systems Management: Response Time Monitoring Function.
     
  19. X.749 (08/97)
    Systems Management: Management Domain and Management Policy Management Function.
     
  20. X.750 (10/96) + Ammend 1 (10/97)
    Information technology - Open Systems Interconnection - Systems Management: Managament knowledge management function.
     
  21. X.751 (11/95) + Corr 1 (06/98)
    Information technology - Open Systems Interconnection - Systems Management: Changeover function.
     
  22. X.753 (10/97)
    Systems Management: Command Sequencer for Systems Management.
     
  23. X.790 (11/95) + Ammend 1 (10/96) + Corr 1 (03/99)
    Trouble management function for ITU-T applications.
     
  24. X.791 (10/96)
    Profile for trouble management function for ITU-T applications.
     
  25. X.792 (03/99)
    Configuration Audit Support Function for ITU-T Applications.

Security

  1. X.800 (03/91) + Ammend 1 (10/96)
    Security architecture for Open Systems Interconnection for CCITT applications.
     
  2. X.802 (04/95)
    Information technology - Lower layers security model.
     
  3. X.803 (07/94)
    Information technology - Open Systems Interconnection - Upper layers security model.
     
  4. X.810 (11/95)
    Information technology - Open Systems Interconnection - Security frameworks for open systems: Overview.
     
  5. X.811 (04/95)
    Information technology - Open Systems Interconnection - Security frameworks for open systems: Authentication framework.
     
  6. X.812 (11/95)
    Information technology - Open Systems Interconnection - Security frameworks for open systems: Access control framework.
     
  7. X.813 (10/96)
    Information technology - Open Systems Interconnection - Security frameworks in open systems: Non-repudiation framework.
     
  8. X.814 (11/95)
    Information technology - Open Systems Interconnection - Security frameworks for open systems: Confidentiality framework.
     
  9. X.815 (11/95)
    Information technology - Open Systems Interconnection - Security frameworks for open systems: Integrity framework.
     
  10. X.816 (11/95)
    Information technology - Open Systems Interconnection - Security frameworks for open systems: Security audit and alarms framework.
     
  11. X.830 (04/95)
    Information tedchnology - Opn Systems Interconnection - Generic upper layers security: Overview, models and notation.
     
  12. X.831 (04/95)
    Information technology - Open Systems Interconnection - Generic upper layers security: Security Exchange Service Element (SESE) service definition.
     
  13. X.832 (04/95)
    Information technology - Open Systems Interconnection - Generic upper layers security: Security Exchange Service Element (SESE) protocol specification.
     
  14. X.833 (04/95)
    Information technology - Open Systems Interconnection - Generic upper layers security: Protecting transfer syntax specification.
     
  15. X.834 (10/96)
    Information technology - Open Systems Interconnection - Generic upper layers security: Security Exchange Service Element (SESE) protocol implementation conformance statement (PICS) proforma.
     
  16. X.835 (10/96)
    Information technology - Open Systems Interconnection - Generic upper layers security: Protecting transfer syntax Protocol Implementation Conformance Statement (PICS) proforma.

OSI Applications - Commitment, Concurrency and Recovery

  1. X.851 (12/97)
    Information technology - Open Systems Interconnection - Service definition for the commitment, concurrency and recovery service element.
     
  2. X.852 (12/97)
    Information technology - Open Systems Interconnection - Protocol for the commitment, concurrency and recovery service element: Protocol specification.
     
  3. X.853 (11/95)
    Information technology - Open Systems Interconnection - Protocol for the commitment, concurrency and recovery service element: Protocol Implementation Conformance Statement (PICS) proforma.

Transaction Processing

  1. X.860 (12/97)
    Open Systems Interconnection - Distributed transaction processing: Model.
     
  2. X.861 (12/97)
    Open Systems Interconnection - Distributed transaction processing: service definition.
     
  3. X.862 (12/97)
    Open Systems Interconnection - Distributed transaction processing: Protocol specification.
     
  4. X.863 (07/94)
    Information technology - Open Systems Interconnection - Distributed transaction processing: Protocol implementation conformance statement (PICS) proforma.

Remote Operations

  1. X.880 (07/94) + Ammend 1 (11/95) + Corr 1 (11/95)
    Information technology - Remote Operations: Concepts, model and notation.
     
  2. X.881 (07/94) + Ammend 1 (11/95)
    Information technology - Remote Operations: OSI realizations - Remote Operations Service Element (ROSE) service definition.
     
  3. X.882 (07/94) + Ammend 1 (11/95) + Corr 1 (11/95)
    Information technology - Remote Operations: OSI realizations - Remote Operations Service Element (ROSE) protocol specification.

Open Distributed Processing

  1. X.901 (08/97)
    Information Technology - Open Distributed Processing - Reference Model: Overview.
     
  2. X.902 (11/95)
    Information technology - Open distributed processing - Reference Model: Foundations.
     
  3. X.903 (11/95)
    Information technology - Open distributed processing - Reference Model: Architecture.
     
  4. X.904 (12/97) + Ammend 1 (03/00)
    Information Technology - Open Distributed Processing - Reference Model: Architectural Semantics.
     
  5. X.910 (09/98)
    Information Technology - Open Distributed Processing - Naming Framework.
     
  6. X.920 (12/97)
    Information Technology - Open Distributed Processing - Interface Definition Language.
     
  7. X.930 (09/98)
    Information Technology - Open Distributed Processing - Interface References and Binding.
     
  8. X.931 (06/99)
    Information Technology - Open Distributed Processing - Protocol Support for Computational Interactions.
     
  9. X.950 (08/97)
    Information Technology - Open Distributed Processing - Trading Function: Specification.
     
  10. X.952 (12/97)
    Information Technology - Open Distributed Processing - Trading Function: Provision of Trading Function Using OSI Directory Service.
     
  11. X.960 (06/99)
    Information Technology - Open Distributed Processing - Type Repository Function.