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ISO/IEC 8208:2000

Current

Current

The latest, up-to-date edition.

Information technology — Data communications — X.25 Packet Layer Protocol for Data Terminal Equipment

Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English

Published date

16-11-2000

Free

This International Standard specifies the procedures, formats and

facilities at the Packet Layer for Data Terminal Equipment (DTE)

operating in conformance with ITU-T Recommendation X.25.

Both Virtual Call and Permanent Virtual Circuit modes of

operation are covered.

The Packet Layer protocol specified herein can be used in both

Open Systems Interconnection (OSI) and non-OSI environments.

When used within the context of OSI, the Packet Layer protocol

is encompassed in the Network Layer of the OSI Reference

Model, ITU-T Rec. X.200 | ISO/IEC 7498-1.

This International Standard covers DTE operation at the Packet

Layer when accessing a public or private packet-switched

network conforming to ITU-T Recommendation X.25 by means

of a dedicated path or a circuit-switched connection. It also

covers the additional Packet Layer procedures necessary for two

DTEs conforming to this International Standard to communicate

directly (i.e., without an intervening packet-switched network)

over a dedicated path, a circuit-switched connection, or a local

area network (LAN).

This International Standard also covers private networks that use

ITU-T Recommendation X.25 to connect to packet-switched

public data networks and that may also offer an X.25 interface to

a DTE (see annex A).

To evaluate conformance of a particular implementation, it is

necessary to have a statement of which capabilities and options

have been implemented. Such a statement is called a Protocol

Implementation Conformance Statement (PICS), as defined in

ITU-T Rec. X.290 | ISO/IEC 9646-1. Annex B provides the PICS

proforma in accordance with the relevant guidance given in ITUT

Rec. X.296 | ISO/IEC 9646-7.

The first edition of this International Standard was based on the

1984 CCITT Red Book text of Recommendation X.25. It also

contained the necessary provisions for compatibility with the

earlier 1980 CCITT Yellow Book text of Recommendation X.25.

The second edition was based on the 1988 CCITT Blue Book

text of Recommendation X.25. The third edition is based upon

the 1993 version of X.25. This fourth edition is based on the

1996 version of X.25. Retained within this fourth edition are the

necessary provisions for compatibility with the 1993, 1988, 1984

and 1980 versions of X.25. The differences between various

editions of this International Standard are summarized in annex

C.

CCITT Recommendation X.613 (1992) | ISO/IEC 10588 : 1993,

Information technology Use of X.25 Packet Layer Protocol in

conjunction with X.21/X.21bis to provide the OSI connectionmode

Network Service

CCITT Recommendation X.614 (1992) | ISO/IEC 10732 : 1993,

Information technology Use of X.25 Packet Layer Protocol to

provide the OSI connection-mode Network Service over the

telephone network

Committee
ISO/IEC JTC 1/SC 6
DevelopmentNote
Supersedes BS ISO/IEC 8208. (09/2003)
DocumentType
Standard
Pages
170
ProductNote
THIS STANDARD ALSO REFERS TO RFC 1166
PublisherName
International Organization for Standardization
Status
Current
Supersedes

BS ISO/IEC 11577:1995 Information technology. Open systems interconnection. Network layer security protocol
BS ISO/IEC 8882-1:1996 Information technology. Telecommunications and information exchange between systems. X.25-DTE conformance testing General principles
ISO/IEC 8473-5:1997 Information technology — Protocol for providing the connectionless-mode network service: Provision of the underlying service by ISDN circuit-switched B-channels
ISO/IEC 8880-2:1992 Information technology — Telecommunications and information exchange between systems — Protocol combinations to provide and support the OSI Network Service — Part 2: Provision and support of the connection-mode Network Service
I.S. EN 60870-6-601:1997 TELECONTROL EQUIPMENT AND SYSTEMS - PART 6: TELECONTROL PROTOCOLS COMPATIBLE WITH ISO STANDARDS AND ITU-T RECOMMENDATIONS - SECTION 601: FUNCTIONAL PROFILE FOR PROVIDING THE CONNECTION-ORIENTED TRANSPORT SERVICE IN END SYSTEM CONNECTED VIA PERMANENT ACCESS TO A PACKET SWITCHED DATA NETWORK
BS ISO/IEC 8473-3:1995 Information technology. Protocol for providing the connectionless-mode network service Provision of the underlying service by an X.25 subnetwork
CSA ISO/IEC ISP 10614-1 : 0 INFORMATION TECHNOLOGY - INTERNATIONAL STANDARDIZED PROFILE RC - X.25 PROTOCOL RELAYING - PART 1: SUBNETWORK-INDEPENDENT REQUIREMENTS
BS ISO/IEC 8878:1992 Information technology. Telecommunications and information exchange between systems. Use of X.25 to provide the OSI connection-mode network service
BS EN ISP 10609-6:1997 Information technology. International standardized profiles TB, TC, TD and TE. Connection-mode transport service over connection-mode network service Definition of profiles TC1111/TC1121
BS ISO/IEC ISP 12067-3:1996 Information technology. International standardized profile RB. Relaying the connection-mode network service PSDN subnetwork-dependent media-dependent requirements for virtual calls over a permanent access
FIPS PUB 146-1 : NOTICE 1 GOVERNMENT OPEN SYSTEMS INTERCONNECTION PROFILE (GOSIP)
I.S. ENV 41802-4:1993 INFORMATION SYSTEMS INTERCONNECTION - X.25 PROTOCOL RELAYING - PART 4: PSDN SUBNETWORK DEPENDENT MEDIA DEPENDENT REQUIREMENTS FOR VIRTUAL CALLS OVER A PERMANENT ACCESS
CSA ISO/IEC 10589 : 2004 INFORMATION TECHNOLOGY - TELECOMMUNICATIONS AND INFORMATION EXCHANGE BETWEEN SYSTEMS - INTERMEDIATE SYSTEM TO INTERMEDIATE SYSTEM INTRA-DOMAIN ROUTEING INFORMATION EXCHANGE PROTOCOL FOR USE IN CONJUNCTION WITH THE PROTOCOL FOR PROVIDING THE CONNECTIONLESS-MODE NETWORK SERVICE (ISO 8473)
CAN/CSA-ISO/IEC 8473-1-01 (R2015) Information Technology - Protocol for Providing the Connectionless-Mode Network Service: Protocol Specification (Adopted ISO/IEC 8473-1:1998, second edition, 1998-11-01)
CSA ISO/IEC 8473-3 : 1997 : R2010 INFORMATION TECHNOLOGY - PROTOCOL FOR PROVIDING THE CONNECTIONLESS-MODE NETWORK SERVICE: PROVISION OF THE UNDERLYING SERVICE BY AN X.25 SUBNETWORK
ANSI INCITS 240 : 1994 INFORMATION TECHNOLOGY - DOMESTIC PUBLIC/PRIVATE X.25 NETWORK INTERWORKING
BS ISO/IEC 9574:1992 Information technology. Provision of the OSI connection-mode network service by packet mode terminal equipment to an integrated services digital network (ISDN)
BS ISO/IEC ISP 12067-2:1996 Information technology. International standardized profile RB. Relaying the connection-mode network service LAN subnetwork-dependent media-independent requirements
ISO/IEC 11577:1995 Information technology Open Systems Interconnection Network layer security protocol
CEI EN 60870-6-601 : 1997 TELECONTROL EQUIPMENT AND SYSTEMS - PART 6: TELECONTROL PROTOCOLS COMPATIBLE WITH ISO STANDARDS AND ITU-T RECOMMENDATIONS - SECTION 601: FUNCTIONAL PROFILE FOR PROVIDING THE CONNECTION-ORIENTED TRANSPORT SERVICE IN END SYSTEM CONNECTED VIA PERMANENT ACCESS TO A PACKET SWITCHED DATA NETWORK
ASTM F 1757 : 1996 : R2002 Standard Guide for Digital Communication Protocols for Computerized Systems
CAN/CSA-ISO/IEC TR 9577-04 (R2017) Information Technology - Protocol Identification in the Network Layer (Adopted ISO/IEC TR 9577:1999, fourth edition, 1999-12-15)
CSA ISO/IEC 11577 : 1997 : R2010 INFORMATION TECHNOLOGY - OPEN SYSTEMS INTERCONNECTION - NETWORK LAYER SECURITY PROTOCOL
CSA ISO/IEC ISP 10609-9 : 1999 INFORMATION TECHNOLOGY - INTERNATIONAL STANDARDIZED PROFILES TB, TC, TD AND TE - CONNECTION MODE TRANSPORT SERVICE OVER CONNECTION-MODE NETWORK SERVICE - PART 9: SUBNETWORK-TYPE DEPENDENT REQUIREMENTS FOR NETWORK LAYER, DATA LINK LAYER AND PHYSICAL LAYER CONCERNING PERMANENT ACCESS TO A PACKET SWITCHED DATA NETWORK USING VIRTUAL CALLS
EN 301 841-2 : 1.1.1 ELECTROMAGNETIC COMPATIBILITY AND RADIO SPECTRUM MATTERS (ERM); VHF AIR-GROUND DIGITAL LINK (VDL) MODE 2; TECHNICAL CHARACTERISTICS AND METHODS OF MEASUREMENT FOR GROUND-BASED EQUIPMENT; PART 2: UPPER LAYERS
GR 828 CORE : ISSUE 1 REV 2 OPERATIONS TECHNOLOGY GENERIC REQUIREMENTS (OTGR): GENERIC OPERATIONS INTERFACE - OSI COMMUNICATIONS ARCHITECTURE
IEC TS 60870-6-602:2001 Telecontrol equipment and systems - Part 6-602: Telecontrol protocols compatible with ISO standards and ITU-T recommendations - TASE transport profiles
ISO/IEC 8473-1:1998 Information technology — Protocol for providing the connectionless-mode network service: Protocol specification — Part 1:
CAN/CSA-ISO/IEC 10030-96 (R2015) Information Technology - Telecommunications and Information Exchange Between Systems - End System Routeing Information Exchange Protocol for Use in Conjunction With ISO/IEC 8878 (Adopted ISO/IEC 10030:1995)
NF EN 301841-2 : 2004 ELECTROMAGNETIC COMPATIBILITY AND RADIO SPECTRUM MATTERS (ERM) - VHF AIR-GROUND DIGITAL LINK (VDL) MODE 2 - TECHNICAL CHARACTERISTICS AND METHODS OF MEASUREMENT FOR GROUND-BASED EQUIPMENT - PART 2: UPPER LAYERS
EN 60870-6-601:1995 Telecontrol equipment and systems - Part 6: Telecontrol protocols compatible with ISO standards and ITU-T recommendations - Section 601: Functional Profile for providing the Connection-Oriented Transport Service in End System connected via permanent access to a Packet Switched Data Network
ASTM F 1757 : 1996 Standard Guide for Digital Communication Protocols for Computerized Systems
I-ETS 300 697-3 : MAR 98 INTEGRATED SERVICES DIGITAL NETWORK (ISDN); CONFORMANCE TESTING FOR THE EURO-ISDN PROGRAMMING COMMUNICATION INTERFACE (PCI); PART 3: TEST SUITE STRUCTURE AND TEST PURPOSES (TSS&TP) SPECIFICATION FOR THE NETWORK ACCESS FACILITY (NAF)
ISO/IEC 10589:2002 Information technology — Telecommunications and information exchange between systems — Intermediate System to Intermediate System intra-domain routeing information exchange protocol for use in conjunction with the protocol for providing the connectionless-mode network service (ISO 8473)
EN 300 175-5 : 2.6.1 DIGITAL ENHANCED CORDLESS TELECOMMUNICATIONS (DECT); COMMON INTERFACE (CI); PART 5: NETWORK (NWK) LAYER
ARINC 635-4:2003 HF DATA LINK PROTOCOLS
BS ISO/IEC ISP 10613-7 : 94 AMD 9575 INFORMATION TECHNOLOGY - INTERNATIONAL STANDARDIZED PROFILE RA - RELAYING THE CONNECTIONLESS-MODE NETWORK SERVICE - PSDN SUBNETWORK-DEPENDENT, MEDIA-DEPENDENT REQUIREMENTS FOR VIRTUAL CALLS OVER PERMANENT ACCESS
ISO/IEC ISP 10613-16:1995 Information technology — International Standardized Profile RA — Relaying the Connectionless-mode Network Service — Part 16: Definition of profile RA53.1121, relaying the Connectionless-mode Network Service between Token Ring LAN subnetworks and PSDNs using virtual calls over a digital data circuit/CSDN leased line permanent access
ISO/IEC ISP 12067-3:1996 Information technology — International Standardized Profile RB — Relaying the connection-mode Network Service — Part 3: PSDN Subnetwork-dependent media-dependent requirements for virtual calls over a permanent access
CAN/CSA-ISO/IEC 14519-04 (R2012) Information Technology - POSIX® Ada Language Interfaces - Binding for System Application Program Interface (API) (Adopted ISO/IEC 14519:2001 / IEEE 1003.5, 1999, second edition, 2001-12-15)
BS ISO/IEC TR 9577:1996 Information technology. Protocol identification in the network layer
BS ISO/IEC 8882-3:1991 Information technology. Telecommunications and information exchange between systems. X.25-DTE conformance testing Packet layer conformance suite
BS EN ISP 10609-8:1997 Information technology. International standardized profiles TB, TC, TD and TE. Connection-mode transport service over connection-mode network service Definition of profiles TE1111/TE1121
I.S. EN ISP 10609-10:1996 INFORMATION TECHNOLOGY - INTERNATIONAL STANDARDIZED PROFILE TB, TC,TD AND TE - CONNECTION-MODE TRANSPORT SERVICE OVER CONNECTION-MODE NETWORK SERVICE - PART 10: LAN SUBNETWORK-DEPENDENT, MEDIA-INDEPENDENT REQUIREMENTS
BS EN ISP 10613-9:1997 Information technology. International standardized profile RA. Relaying the connectionless-mode network service Definition of profile RA51.1121, relaying the connectionless-mode network service between CSMA/CD LAN subnetworks and PSDNs using virtual calls over a digital data circuit/CSDN leased line permanent access
BS ISO/IEC ISP 10614-4:1995 Information technology. International standardized profile RC. X.25 protocol relaying PSDN subnetwork-dependant, media-dependant requirements for virtual calls over a permanent access
ARINC 656 : 1999 AVIONICS INTERFACE DEFINITION FOR FLIGHT MANAGEMENT AND COMMUNICATIONS MANAGEMENT FUNCTIONS
ARINC 629 : 90 SUPP 5 MULTI TRANSMITTER DATA BUS - TECHNICAL DESCRIPTION
BS ISO/IEC 10589:1992 Information technology. Telecommunications and information exchange between systems. Intermediate system to Intermediate system intra-domain routeing information exchange protocol for use in conjunction with the protocol for providing the connectionless-mode network service (ISO 8473)
I-ETS 300 697-2 : MAR 98 INTEGRATED SERVICES DIGITAL NETWORK (ISDN); CONFORMANCE TESTING FOR THE EURO-ISDN PROGRAMMING COMMUNICATION INTERFACE (PCI); PART 2: ABSTRACT TEST SUITE (ATS) SPECIFICATION FOR THE PCI USER FACILITY (PUF)
DD IEC/TS 60870-6-602:2001 Telecontrol equipment and systems. Telecontrol protocols compatible with ISO standards and ITU-T recommendations TASE transport profiles
CSA ISO/IEC TR 9577 : 2004 INFORMATION TECHNOLOGY - PROTOCOL IDENTIFICATION IN THE NETWORK LAYER
BS 7232:1990 Specification for information exchange systems. End system to intermediate system routeing exchange protocol for use in conjunction with the protocol for providing the connectionless-mode network service
CSA Z243.136.3 : 0 INFORMATION PROCESSING SYSTEMS - DATA COMMUNICATIONS - USE OF THE X.25 PACKET LEVEL PROTOCOL IN LOCAL AREA NETWORKS
CAN/CSA-ISO/IEC 8473-5-01 (R2015) Information Technology - Protocol for Providing the Connectionless-Mode Network Service: Provision of the Underlying Service by ISDN Circuit-Switched B-Channels (Adopted ISO/IEC 8473-5:1997, first edition, 1997-05-01)
CSA ISO/IEC 11577 : 1997 : R2001 INFORMATION TECHNOLOGY - OPEN SYSTEMS INTERCONNECTION - NETWORK LAYER SECURITY PROTOCOL
ETR 086-2 : 20001 TRANS EUROPEAN TRUNKED RADIO (TETRA) SYSTEMS - TECHNICAL REQUIREMENTS SPECIFICATION - PACKET DATA OPTIMISED (PDO) SYSTEMS
IEC TR 60870-6-1:1995 Telecontrol equipment and systems - Part 6: Telecontrol protocols compatible with ISO standards and ITU-T recommendations - Section 1: Application context and organization of standards
ISO/IEC 14519:2001 Information technology — POSIX Ada Language Interfaces — Binding for System Application Program Interface (API)
CSA ISO/IEC ISP 10613-17 : 0 INFORMATION TECHNOLOGY - INTERNATIONAL STANDARDIZED PROFILE RA - RELAYING THE CONNECTIONLESS-MODE NETWORK SERVICE - DEFINITION OF PROFILE RA54.1111, RELAYING THE CONNECTIONLESS-MODE NETWORK SERVICE BETWEEN FDDI LAN SUBNETWORKS AND PSDNS USING VIRTUAL CALLS OVER A PSTN LEASED LINE PERMANENT ACCESS
ARINC 624-1 : 1993 DESIGN GUIDANCE FOR ONBOARD MAINTENANCE SYSTEM
CSA ISO/IEC ISP 10613-16 : 0 INFORMATION TECHNOLOGY - INTERNATIONAL STANDARDIZED PROFILE RA - RELAYING THE CONNECTIONLESS-MODE NETWORK SERVICE - DEFINITION OF PROFILE RA53.1121, RELAYING THE CONNECTIONLESS-MODE NETWORK SERVICE BETWEEN TOKEN RING LAN SUBNETWORKS AND PSDNS USING VIRTUAL CALLS OVER A DIGITAL DATA CIRCUIT/CSDN LEASED LINE PERMANENT ACCESS
NF ETS 300 223 : 1995 TERMINAL EQUIPMENT (TE) - SYNTAX-BASED VIDEOTEXT - COMMON END-TO-END PROTOCOLS
ES 201 684 : 1.1.1 INTEGRATED SERVICES DIGITAL NETWORK (ISDN); FILE TRANSFER PROFILE; B-CHANNEL AGGREGATION AND SYNCHRONOUS COMPRESSION
IEEE DRAFT 1003.5C : D5 98 DRAFT STANDARD FOR INFORMATION TECHNOLOGY - POSIX ADA LANGUAGE INTERFACES - BINDING FOR SYSTEM APPLICATION PROGRAM INTERFACE (API) - AMENDMENT 2: PROTOCOL INDEPENDENT INTERFACES
NF ETS 300 080 : 1995 INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - ISDN LOWER LAYER PROTOCOLS FOR TELEMATIC TERMINALS
BS EN ISP 10609-7:1997 Information technology. International standardized profiles TB, TC, TD and TE. Connection-mode transport service over connection-mode network service Definition of profiles TD1111/TD1121
BS EN ISP 10613-7:1997 Information technology. International standardized profile RA. Relaying the connectionless-mode network service PSDN subnetwork-dependent, media-dependent requirements for virtual calls over a permanent access
ETR 343 : 20001 INTEGRATED SERVICES DIGITAL NETWORK (ISDN); EXTENDED LOWER LAYER PROTOCOLS; DEFINITION OF B AND D CHANNEL PROTOCOLS WITH PROPOSED REQUIREMENTS LIST (RL) AND PROFILE SPECIFIC IMPLEMENTATION CONFORMANCE STATEMENT (ICS)
TS 132 101 : 13.0.0 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+) (GSM); UNIVERSAL MOBILE TELECOMMUNICATIONS SYSTEM (UMTS); LTE; TELECOMMUNICATION MANAGEMENT; PRINCIPLES AND HIGH LEVEL REQUIREMENTS (3GPP TS 32.101 VERSION 14.0.0 RELEASE 14)
TS 101 679 : 1.1.1 DIGITAL ENHANCED CORDLESS TELECOMMUNICATIONS (DECT) - BROADBAND INTEGRATED SERVICES DIGITAL NETWORK (B-ISDN) - DECT/B-ISDN INTERWORKING
SR 3289 : ISSUE 2 PROPOSED IMPLEMENTATION PLAN FOR NTM/NDC OSI/CMISE-BASED OS/NE INTERFACES
BS EN ISP 10613-8:1997 Information technology. International standardized profile RA. Relaying the connectionless-mode network service Definition of profile RA51.1111, relaying the connectionless-mode network service between CSMA/CD LAN subnetworks and PSDNs using virtual calls over a PSTN leased line permanent access
ARINC 758-3:2011 COMMUNICATIONS MANAGEMENT UNIT (CMU) MARK 2
BS ISO/IEC ISP 10609-10 : 94 AMD 9580 INFORMATION TECHNOLOGY - INTERNATIONAL STANDARDIZED PROFILES TB, TC, TD AND TE - CONNECTION-MODE TRANSPORT SERVICE OVER CONNECTION-MODE NETWORK SERVICE - LAN SUBNETWORK-DEPENDENT MEDIA-INDEPENDENT REQUIREMENTS
CSA ISO/IEC 8473-5 : 2001 : R2010 INFORMATION TECHNOLOGY - PROTOCOL FOR PROVIDING THE CONNECTIONLESS-MODE NETWORK SERVICE: PROVISION OF THE UNDERLYING SERVICE BY ISDN CIRCUIT-SWITCHED B-CHANNELS
CSA ISO/IEC 8473-1 : 2001 : R2010 INFORMATION TECHNOLOGY - PROTOCOL FOR PROVIDING THE CONNECTIONLESS-MODE NETWORK SERVICE: PROTOCOL SPECIFICATION
ISO/IEC 10747:1994 Information technology Telecommunications and information exchange between systems Protocol for exchange of inter-domain routeing information among intermediate systems to support forwarding of ISO 8473 PDUs
CAN/CSA-Z243.134-M88 (R2013) Information Processing Systems - Open Systems Interconnection - Internal Organization of the Network Layer (Adopted ISO 8648:1988)
CSA ISO/IEC 10747:1995/AMD 1:1999(R2013) Information technology - Telecom m u n icat ions and information exchange between systems - Protocol for exchange of inter-domain routeing information among intermediate systems to support forwarding of IS0 8473 PDUs AMENDMENT 1: Implementation conformance statement proformas
ANSI INCITS 100 : 1989 : R2000 INTERFACE BETWEEN DATA TERMINAL EQUIPMENT (DTE) AND DATA CIRCUIT-TERMINATING EQUIPMENT (DCE) FOR OPERATION WITH PACKET-SWITCHED DATA NETWORKS (PSDN), OR BETWEEN TWO DTES, BY DEDICATED CIRCUIT
CSA ISO/IEC 10747 : 1995 : INC : AMD 1 : 1999 : R2008 INFORMATION TECHNOLOGY - TELECOMMUNICATIONS AND INFORMATION EXCHANGE BETWEEN SYSTEMS - PROTOCOL FOR EXCHANGE OF INTERDOMAIN ROUTEING INFORMATION AMONG INTERMEDIATE SYSTEMS TO SUPPORT FORWARDING OF ISO 8473 PDUS
CSA ISO/IEC ISP 10614-4 : 0 INFORMATION TECHNOLOGY - INTERNATIONAL STANDARDIZED PROFILE RC - X.25 PROTOCOL RELAYING - PART 4: PSDN SUBNETWORK-DEPENDENT, MEDIA-DEPENDENT REQUIREMENTS FOR VIRTUAL CALLS OVER A PERMANENT ACCESS
EG 201 299-2 : 2.1.1 INTEGRATES SERVICES DIGITAL NETWORK (ISDN); NETWORK INTEGRATION TESTING (NIT); ISDN END-TO-END TESTING; PART 2: ABSTRACT TEST SUITE (ATS) AND PARTIAL PROTOCOL IMPLEMENTATION EXTRA INFORMATION FOR TESTING (PIXIT) PROFORMA FOR THE NETWORK
ISO/IEC ISP 10614-4:1995 Information technology — International Standardized Profile RC — X.25 protocol relaying — Part 4: PSDN subnetwork-dependent, media-dependent requirements for virtual calls over a permanent access
I.S. EN 60870-6-2:1999 TELECONTROL EQUIPMENT AND SYSTEMS - PART 6: TELECONTROL PROTOCOLS COMPATIBLE WITH ISO STANDARDS AND ITU-T RECOMMENDATIONS - SECTION 2: USE OF BASIC STANDARDS (OSI LAYERS 1-4)
ISO/IEC ISP 12067-1:1996 Information technology — International Standardized Profile RB — Relaying the connection-mode Network Service — Part 1: Subnetwork-independent requirements
TS 102 112-1 : 1.1.1 SERVICES AND PROTOCOLS FOR ADVANCED NETWORKS (SPAN); NETWORK INTEGRATION TESTING BETWEEN IN, PLMN AND ISDN PART 1: TEST SUITE STRUCTURE AND TEST PURPOSES (TSS&TP)
ASTM F 1757 : 1996 : R2008 Standard Guide for Digital Communication Protocols for Computerized Systems
ASTM F 1757 : 1996 : R2015 Standard Guide for Digital Communication Protocols for Computerized Systems
TS 102 113-1 : 1.1.2 SERVICES AND PROTOCOLS FOR ADVANCED NETWORKS (SPAN); NETWORK INTEGRATION TESTING BETWEEN GSM PHASE 2+, ISDN AND PSTN; PART 1: TEST SUITE STRUCTURE AND TEST PURPOSES (TSS&TP)
ISO/IEC ISP 10609-9:1992 Information technology International Standardized Profiles TB, TC, TD and TE Connection-mode Transport Service over connection-mode Network Service Part 9: Subnetwork-type dependent requirements for Network Layer, Data Link Layer and Physical Layer concerning permanent access to a packet switched data network using virtual calls
ENV 41802-4 : DRAFT 1992 INFORMATION SYSTEMS INTERCONNECTION - X.25 PROTOCOL RELAYING - PART 4: PSDN SUBNETWORK DEPENDENT MEDIA DEPENDENT REQUIREMENTS FOR VIRTUAL CALLS OVER A PERMANENT ACCESS
ISO/IEC ISP 10609-10:1994 Information technology — International Standardized Profiles TB, TC, TD and TE — Connection-mode Transport Service over connection-mode Network Service — Part 10: LAN subnetwork-dependent, media-independent requirements
ANSI INCITS 100 : 1989 : R2005 INTERFACE BETWEEN DATA TERMINAL EQUIPMENT (DTE) AND DATA CIRCUIT-TERMINATING EQUIPMENT (DCE) FOR OPERATION WITH PACKET-SWITCHED DATA NETWORKS (PSDN), OR BETWEEN TWO DTES, BY DEDICATED CIRCUIT
CAN/CSA-ISO/IEC 7498-3-00 (R2013) Information Technology - Open Systems Interconnection - Basic Reference Model: Naming and Addressing (Adopted ISO/IEC 7498-3:1997, second edition, 1997-04-15)
TR 101 380 : 1.1.1 DIGITAL TERMINALS AND ACCESS (DTA) - DEFINITIONS, ABBREVIATIONS AND SYMBOLS
I-ETS 300 697-4 : MAR 98 INTEGRATED SERVICES DIGITAL NETWORK (ISDN); CONFORMANCE TESTING FOR THE EURO-ISDN PROGRAMMING COMMUNICATION INTERFACE (PCI); PART 4: ABSTRACT TEST SUITE (ATS) SPECIFICATION FOR THE NETWORK ACCESS FACILITY (NAF)
ISO/IEC ISP 10614-2:1995 Information technology — International Standardized Profile RC — X.25 protocol relaying — Part 2: LAN subnetwork-dependent, media-independent requirements
BS ISO/IEC ISP 10608-5:1992 Information technology. International standardized profile TAnnnn. Connection-mode transport service over connectionless-mode network service TA1111/TA1121 profiles including subnetwork-dependent requirements for X.25 packet-switched data networks using virtual calls
CSA ISO/IEC ISP 10609-22 : 0 INFORMATION TECHNOLOGY - INTERNATIONAL STANDARDIZED PROFILES TB, TC, TD AND TE - CONNECTION-MODE TRANSPORT SERVICE OVER CONNECTION-MODE NETWORK SERVICE - PART 22: SUBNETWORK-TYPE DEPENDENT REQUIREMENTS FOR NETWORK LAYER AND DATA LINK LAYER FOR ISDN B-CHANNEL X.25 DTE TO DCE OPERATION
ISO/IEC 8882-3:2000 Information technology Telecommunications and information exchange between systems X.25 DTE conformance testing Part 3: Packet layer conformance test suite
BS EN 60870-6-601:1995 Telecontrol equipment and systems. Telecontrol protocols compatible with ISO standards and ITU-T recommendations Functional profile for providing the connection-oriented transport service in end system connected via permanent access to a packet switched data network
TS 102 110-2 : 1.1.1 SERVICES AND PROTOCOLS FOR ADVANCED NETWORKS; NETWORK INTEGRATION TESTING OF UNIVERSAL MOBILE TELECOMMUNICATIONS SYSTEM (UMTS) WITH GLOBAL SYSTEM FOR MOBILE COMMUNICATION (GSM) PHASE 2+, PUBLIC SWITCHED TELEPHONE NETWORK (PSTN) AND INTEGRATED SERVICES DIGITAL NETWORK (ISDN); PART 2: ABSTRACT TEST SUITE (ATS) AND PARTIAL IMPLEMENTATION EXTRA INFORMATION FOR TESTING (PIXIT) PROFORMA
ARINC 637 : 1993 INTERNETWORKING SPECIFICATION
I.S. ETS 300 150:1993 TRANSMISSION AND MULTIPLEXING (TM) - PROTOCOL SUITES FOR Q INTERFACES FOR MANAGEMENT OF TRANSMISSION SYSTEMS
BS ISO/IEC ISP 10614-1:1995 Information technology. International standardized profile RC. X.25 protocol relaying Subnetwork-independent requirements
ATIS T1.204 : 97(R2003) OAM&P - LOWER LAYER PROTOCOLS FOR TELECOMMUNICATION MANAGEMENT NETWORK (TMN) INTERFACES, Q3 AND X INTERFACES
DIN ETS 300383:1995-07 INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - FILE TRANSFER OVER THE ISDN EUROFILE TRANSFER PROFILE
BS ISO/IEC 8473-1:1998 Information technology. Protocol for providing the connectionless-mode network service Protocol specification
ARINC 618-8 : 2016 AIR/GROUND CHARACTER-ORIENTED PROTOCOL SPECIFICATION
BS ISO/IEC 10588:1993 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
BS ISO/IEC 10733:1998 Information technology. Elements of management information related to the OSI network layer
BS ISO/IEC 10177:1993 Information technology. Telecommunications and information exchange between systems. Provision of the connection-mode Network internal layer service by intermediate systems using ISO/IEC 8208, the X.25 Packet Layer Protocol
BS ISO/IEC 8880-2:1992 Information technology. Telecommunications and information exchange between systems. Protocol combinations to provide and support the OSI network service Provision and support of the connection-mode network service
BS ISO/IEC 8473-5:1997 Information technology. Protocol for providing the connectionless-mode network service Provision of the underlying service by ISDN circuit-switched B-channels
CSA ISO/IEC 8473-5 : 2001 : FR INFORMATION TECHNOLOGY - PROTOCOL FOR PROVIDING THE CONNECTIONLESS-MODE NETWORK SERVICE: PROVISION OF THE UNDERLYING SERVICE BY ISDN CIRCUIT-SWITCHED B-CHANNELS
I-ETS 300 697-1 : MAR 98 INTEGRATED SERVICES DIGITAL NETWORK (ISDN); CONFORMANCE TESTING FOR THE EURO-ISDN PROGRAMMING COMMUNICATION INTERFACE (PCI); PART 1: TEST SUITE STRUCTURE AND TEST PURPOSES (TSS&TP) SPECIFICATION FOR THE PCI USER FACILITY (PUF)
EG 201 299-1 : 2.1.1 INTEGRATES SERVICES DIGITAL NETWORK (ISDN); NETWORK INTEGRATION TESTING (NIT); ISDN/PSTN END-TO-END TESTING; PART 1: TEST SUITE STRUCTURE AND TEST PURPOSES (TSS&TP) SPECIFICATION
BS ISO/IEC TR 10172:1991 Information technology. Telecommunications and information exchange between systems. Network Transport Protocol interworking specification
CSA ISO/IEC 8473-1 : 2001 : FR INFORMATION TECHNOLOGY - PROTOCOL FOR PROVIDING THE CONNECTIONLESS-MODE NETWORK SERVICE: PROTOCOL SPECIFICATION
CSA ISO/IEC 8878 : 1995 INFORMATION TECHNOLOGY - TELECOMMUNICATIONS AND INFORMATION EXCHANGE BETWEEN SYSTEMS - USE OF X.25 TO PROVIDE THE OSI CONNECTION-MODE NETWORK SERVICE
CSA Z243.134 : 1988 : R2004 INFORMATION PROCESSING SYSTEMS - OPEN SYSTEMS INTERCONNECTION - INTERNAL ORGANIZATION OF THE NETWORK LAYER
CAN/CSA-ISO/IEC 8878-95 (R2013) Information Technology - Telecommunications and Information Exchange Between Systems - Use of X.25 to Provide the OSI Connection-Mode Network Service (Adopted ISO/IEC 8878:1992, second edition, 1992-12-15, including Technical Corrigendum 1:1993 and Technical Corrigendum 2:1993)
CSA ISO/IEC ISP 10613-7 : 2001(R2005) INFORMATION TECHNOLOGY - INTERNATIONAL STANDARDIZED PROFILE RA - RELAYING THE CONNECTIONLESS-MODE NETWORK SERVICE - PART 7: PSDN SUBNETWORK-DEPENDENT, MEDIA-DEPENDENT REQUIREMENTS FOR VIRTUAL CALLS OVER A PERMANENT ACCESS
CSA ISO/IEC ISP 10614-2 : 0 INFORMATION TECHNOLOGY - INTERNATIONAL STANDARDIZED PROFILE RC - X.25 PROTOCOL RELAYING - PART 2: LAN SUBNETWORK-DEPENDENT, MEDIA-INDEPENDENT REQUIREMENTS
I.S. EN ISP 10609-9:1996 INFORMATION TECHNOLOGY - INTERNATIONAL STANDARDIZED PROFILES TB, TC, TD AND TE - CONNECTION-MODE TRANSPORT SERVICE OVER CONNECTION-MODE NETWORK SERVICE - PART 9: SUBNETWORK-TYPE DEPENDENT REQUIREMENTS FOR NETWORK LAYER, DATA LINK LAYER AND PHYSICAL LAYER CONCERNING PERMANENT ACCESS TO A PACKET SWITCHED DATA NETWORK USING VIRTUAL CALLS
ISO/IEC ISP 10614-1:1995 Information technology — International Standardized Profile RC — X.25 protocol relaying — Part 1: Subnetwork-independent requirements
ISO/IEC TR 10172:1991 Information technology Telecommunications and information exchange between systems Network/Transport Protocol interworking specification
SR 2751 : ISSUE 2 OCS OS-NE INTERFACE SUPPORT FOR THE OSI/CMISE PROTOCOL STACK
ISO/IEC 8882-1:1996 Information technology Telecommunications and information exchange between systems X.25 DTE conformance testing Part 1: General principles
ISO/IEC 10733:1998 Information technology Elements of management information related to the OSI Network Layer
IEC 60870-6-2:1995 Telecontrol equipment and systems - Part 6: Telecontrol protocols compatible with ISO standards and ITU-T recommendations - Section 2: Use of basic standards (OSI layers 1-4)
IEC 60870-6-601:1994 Telecontrol equipment and systems - Part 6: Telecontrol protocol s compatible with ISO standards and ITU-T recommendations - Sect ion 601: Functional profile for providing the connection-oriente d transport service in an end system connected via permanent acc ess to a packet switched data network
EN ISP 10613-7 : 1996 INFORMATION TECHNOLOGY - INTERNATIONAL STANDARDIZED PROFILE RA - RELAYING THE CONNECTIONLESS-MODE NETWORK SERVICE - PART 7: PSDN SUBNETWORK-DEPENDENT, MEDIA-DEPENDENT REQUIREMENTS FOR VIRTUAL CALLS OVER A PERMANENT ACCESS
EN ISP 10609-10 : 1996 INFORMATION TECHNOLOGY - INTERNATIONAL STANDARDIZED PROFILE TB, TC,TD AND TE - CONNECTION-MODE TRANSPORT SERVICE OVER CONNECTION-MODE NETWORK SERVICE - PART 10: LAN SUBNETWORK-DEPENDENT, MEDIA-INDEPENDENT REQUIREMENTS
EN ISP 10609-9 : 1996 INFORMATION TECHNOLOGY - INTERNATIONAL STANDARDIZED PROFILES TB, TC, TD AND TE - CONNECTION-MODE TRANSPORT SERVICE OVER CONNECTION-MODE NETWORK SERVICE - PART 9: SUBNETWORK-TYPE DEPENDENT REQUIREMENTS FOR NETWORK LAYER, DATA LINK LAYER AND PHYSICAL LAYER CONCERNING PERMANENT ACCESS TO A PACKET SWITCHED DATA NETWORK USING VIRTUAL CALLS
BS EN ISP 10609-10:1997 Information technology. International standardized profiles TB, TC, TD and TE. Connection-mode transport service over connection-mode network service LAN subnetwork-dependent, media-independent requirements
BS ISO/IEC ISP 12067-1:1996 Information technology. International standardized profile RB. Relaying the connection-mode network service Subnetwork-independent requirements
CSA ISO/IEC ISP 10609-20 : 0 INFORMATION TECHNOLOGY - INTERNATIONAL STANDARDIZED PROFILES TB, TC, TD AND TE - CONNECTION-MODE TRANSPORT SERVICE OVER CONNECTION-MODE NETWORK SERVICE - PART 20: OVERVIEW OF THE GENERALIZED MULTI-PART ISP STRUCTURE FOR TC AND TD GROUP PROFILES FOR OSI USAGE OF ISDN
ISO/IEC 8473-3:1995 Information technology — Protocol for providing the connectionless-mode network service: Provision of the underlying service by an X.25 subnetwork
BS ISO/IEC 10747:1994 Information technology. Telecommunications and information exchange between systems. Protocol for exchange of inter-domain routeing information among intermediate systems to support forwarding of ISO 8473 PDUs
I.S. EN ISP 10613-7:1996 INFORMATION TECHNOLOGY - INTERNATIONAL STANDARDIZED PROFILE RA - RELAYING THE CONNECTIONLESS-MODE NETWORK SERVICE - PART 7: PSDN SUBNETWORK-DEPENDENT, MEDIA-DEPENDENT REQUIREMENTS FOR VIRTUAL CALLS OVER A PERMANENT ACCESS
BS ISO/IEC 10732:1993 Information technology. Use of X.25 packet layer protocol to provide the OSI connection-mode network service over the telephone network
BS EN ISP 10609-9:1997 Information technology. International standardized profiles TB, TC, TD and TE. Connection-mode transport service over connection-mode network service Subnetwork-type dependent requirements for network layer, data link layer and physical layer concerning permanent access to a packet switched data network using virtual calls
CSA ISO/IEC ISP 10608-5 : 0 INFORMATION TECHNOLOGY - INTERNATIONAL STANDARDIZED PROFILE TANNNN - CONNECTION-MODE TRANSPORT SERVICE OVER CONNECTIONLESS-MODE NETWORK SERVICE - PART 5: TA1111/TA1121 PROFILES INCLUDING SUBNETWORK DEPENDENT REQUIREMENTS FOR X.25 PACKET-SWITCHED DATA NETWORKS USING VIRTUAL CALLS
BS ISO/IEC 14519:2001 Information technology. POSIX Ada language interfaces. Binding for system application program interface (API)
ISO/IEC TR 9577:1999 Information technology — Protocol identification in the network layer
BS ISO/IEC ISP 10614-2:1995 Information technology. International standardized profile RC. X.25 protocol relaying LAN subnetwork-dependent, media-independent requirements
BS ISO/IEC 10030:1995 Information technology. Telecommunications and information exchange between systems. End System Routeing Information Exchange protocol for use in conjunction with ISO/IEC 8878
BS ISO/IEC ISP 10609-9 : 93 AMD 9570 INFORMATION TECHNOLOGY - INTERNATIONAL STANDARDIZED PROFILES TB, TC, TD AND TE - CONNECTION MODE TRANSPORT SERVICE OVER CONNECTION MODE NETWORK SERVICE - SUBNETWORK TYPE DEPENDENT REQUIREMENTS FOR NETWORK LAYER, DATA LINK LAYER AND PHYSICAL LAYER CONCERNING PERMANENT ADDRESS TO A PACKET SWITCH DATA NETWORK USING VIRTUAL CALLS
CSA ISO/IEC ISP 10609-10 : 0 INFORMATION TECHNOLOGY - INTERNATIONAL STANDARDIZED PROFILES TB, TC, TD AND TE - CONNECTION-MODE TRANSPORT SERVICE OVER CONNECTION-MODE NETWORK SERVICE - PART 10: LAN SUBNETWORK-DEPENDENT, MEDIA-INDEPENDENT REQUIREMENTS
TS 102 112-2 : 1.1.1 SERVICES AND PROTOCOLS FOR ADVANCED NETWORKS (SPAN); NETWORK INTEGRATION TESTING BETWEEN IN, PLMN AND ISDN; PART 2: IMPLEMENTATION CONFORMANCE STATEMENT (ICS), PARTIAL IMPLEMENTATION EXTRA INFORMATION FOR TESTING (IXIT) PROFORMAS AND ABSTRACT TEST SUITE (ATS)
INCITS/ISO/IEC 10589 : 2002 INFORMATION TECHNOLOGY - TELECOMMUNICATIONS AND INFORMATION EXCHANGE BETWEEN SYSTEMS - INTERMEDIATE SYSTEM TO INTERMEDIATE SYSTEM INTRA-DOMAIN ROUTEING INFORMATION EXCHANGE PROTOCOL FOR USE IN CONJUNCTION WITH THE PROTOCOL FOR PROVIDING THE CONNECTIONLESS-MODE NETWORK SERVICE (ISO 8473)
CAN/CSA-ISO/IEC 8473-3-97 (R2015) Information Technology - Protocol for Providing the Connectionless-Mode Network Service: Provision of the Underlying Service by an X.25 Subnetwork (Adopted ISO/IEC 8473-3:1995)
TS 186 001-5 : 2.3.0 CORE NETWORK AND INTEROPERABILITY TESTING (INT); NETWORK INTEGRATION TESTING BETWEEN SIP AND ISDN/PSTN NETWORK SIGNALLING PROTOCOLS; PART 5: TEST SUITE STRUCTURE AND TEST PURPOSES (TSS&TP) FOR NETWORK INTEGRATION TESTS BETWEEN ISDN-ISDN AND ISDN-PSTN OVER SIP II NNI/SIP-I NNI
CSA ISO/IEC 8878 : 1995 : INC : COR 3 : 2013 : R200800 INFORMATION TECHNOLOGY - TELECOMMUNICATIONS AND INFORMATION EXCHANGE BETWEEN SYSTEMS - USE OF X.25 TO PROVIDE THE OSI CONNECTION-MODE NETWORK SERVICE
NF ETS 300 218 : 1998 INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - SYNTAX-BASED VIDEOTEX LOWER LAYERS PROTOCOLS FOR ISDN PACKET MODE (CCITT RECOMMENDATION X.31 CASE A AND CASE B)
CSA ISO/IEC TR 9577 : 2004 : R2012 INFORMATION TECHNOLOGY - PROTOCOL IDENTIFICATION IN THE NETWORK LAYER
CSA ISO/IEC ISP 10613-18 : 0 INFORMATION TECHNOLOGY - INTERNATIONAL STANDARDIZED PROFILE RA - RELAYING THE CONNECTIONLESS-MODE NETWORK SERVICE - DEFINITION OF PROFILE RA54.1121, RELAYING THE CONNECTIONLESS-MODE NETWORK SERVICE BETWEEN FDDI LAN SUBNETWORKS AND PSDNS USING VIRTUAL CALLS OVER A DIGITAL CIRCUIT/CSDN LEASED LINE PERMANENT ACCESS
ANSI INCITS 228 : 1993 INFORMATION SYSTEMS - X.25 DATA TRANSFER PHASE (DTP) PROCEDURES FOR OPERATION WITH FRAME RELAY
ISO/IEC 8880-3:1990 Information technology — Telecommunications and information exchange between systems — Protocol combinations to provide and support the OSI Network Service — Part 3: Provision and support of the connectionless-mode Network Service
CSA ISO/IEC ISP 10609-21 : 0 INFORMATION TECHNOLOGY - INTERNATIONAL STANDARDIZED PROFILES TB, TC, TD AND TE - CONNECTION-MODE TRANSPORT SERVICE OVER CONNECTION-MODE NETWORK SERVICE - PART 21: SUBNETWORK-TYPE DEPENDENT REQUIREMENTS FOR NETWORK LAYER AND DATA LINK LAYER FOR ISDN B-CHANNEL X.25 DTE TO DTE OPERATION
CAN/CSA-ISO/IEC 10589-04 (R2012) Information Technology - Telecommunications and Information Exchange Between Systems - Intermediate System to Intermediate System Intra-Domain Routeing Information Exchange Protocol for use in Conjunction with the Protocol for Providing the Connectionless-Mode Network Service (ISO 8473) (Adopted ISO/IEC 10589:2002, second edition, 2002-11-15)
EG 201 066-1 : 1.2.3 INTEGRATED SERVICES DIGITAL NETWORK (ISDN); DIGITAL SUBSCRIBER SIGNALLING SYSTEM NO. ONE (DSS1) PROTOCOL; APPLICATION OF THE BEARER CAPABILITY (BC), HIGH LAYER COMPATIBILITY (HLC) AND LOW LAYER COMPATIBILITY (LLC) INFORMATION ELEMENTS; PART 1: TEST SUITE STRUCTURE AND TEST PURPOSES (TSS&TP) SPECIFICATION
CAN/CSA-ISO/IEC 11577-97 (R2015) Information Technology - Open Systems Interconnection - Network Layer Security Protocol (Adopted ISO/IEC 11577:1995)
ARINC 746-6 : 2010 CABIN COMMUNICATIONS SYSTEMS (CCS)
CSA Z243.135.3 : 0 INFORMATION TECHNOLOGY - TELECOMMUNICATIONS AND INFORMATION EXCHANGE BETWEEN SYSTEMS - PROTOCOL COMBINATIONS TO PROVIDE AND SUPPORT THE OSI NETWORK SERVICE - PROVISIONS AND SUPPORT OF THE CONNECTIONLESS MODE NETWORK SERVICE
INCITS/ISO/IEC 10030 : 1995(R2012) INFORMATION TECHNOLOGY - TELECOMMUNICATIONS AND INFORMATION EXCHANGE BETWEEN SYSTEMS - END SYSTEM ROUTING INFORMATION EXCHANGE PROTOCOL FOR USE IN CONJUNCTION WITH ISO/IEC 8878
ICAO 7300 ANNEX 10 VOL.3 : 2007 ANNEX 10 TO THE CONVENTION ON INTERNATIONAL CIVIL AVIATION (ICAO 7300) - AERONAUTICAL TELECOMMUNICATIONS - VOLUME 3: COMMUNICATION SYSTEMS
ISO/IEC 10030:1995 Information technology Telecommunications and information exchange between systems End System Routeing Information Exchange Protocol for use in conjunction with ISO/IEC 8878
ARINC 629-1-5 : 1999 MULTI-TRANSMITTER DATA BUS - PART 1: TECHNICAL DESCRIPTION
ISO/IEC 9574:1992 Information technology Provision of the OSI connection-mode network service by packet mode terminal equipment to an integrated services digital network (ISDN)
TS 102 113-2 : 1.1.1 SERVICES AND PROTOCOLS FOR ADVANCED NETWORKS (SPAN); NETWORK INTEGRATION TESTING BETWEEN GSM PHASE 2+, ISDN AND PSTN; PART 2: ABSTRACT TEST SUITE (ATS) AND PARTIAL PROTOCOL IMPLEMENTATION EXTRA INFORMATION FOR TESTING (PIXIT)
CSA ISO/IEC ISP 10613-15 : 0 INFORMATION TECHNOLOGY - INTERNATIONAL STANDARDIZED PROFILE RA - RELAYING THE CONNECTIONLESS-MODE NETWORK SERVICE - DEFINITION OF PROFILE RA53.1111, RELAYING THE CONNECTIONLESS-MODE NETWORK SERVICE BETWEEN TOKEN RING LAN SUBNETWORKS AND PSDNS USING VIRTUAL CALLS OVER A PSTN LEASED LINE PERMANENT ACCESS
EN 60870-6-2:1995 Telecontrol equipment and systems - Part 6: Telecontrol protocols compatible with ISO standards and ITU-T recommendations - Section 2: Use of basic standards (OSI layers 1-4)

ISO/IEC 9646-7:1995 Information technology Open Systems Interconnection Conformance testing methodology and framework Part 7: Implementation Conformance Statements
ISO/IEC 8878:1992 Information technology — Telecommunications and information exchange between systems — Use of X.25 to provide the OSI Connection-mode Network Service
ISO/IEC 646:1991 Information technology ISO 7-bit coded character set for information interchange
ISO/IEC 10039:1991 Information technology — Open Systems Interconnection — Local area networks — Medium Access Control (MAC) service definition
ISO/IEC 9646-1:1994 Information technology Open Systems Interconnection Conformance testing methodology and framework Part 1: General concepts
ISO/IEC TR 13532:1995 Information technology Telecommunications and information exchange between systems Protocol combinations to provide and support the OSI Network Service

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