GB/T 7421-2008 Active National standards

GB/T 7421-2008 Information technology—Telecommunications and information exchange between systems—High-level data link control (HDLC) procedures

Publish Date: 2008-08-19 Implement Date: 2009-01-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 7421-2008

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Data communication

ICS Name: \nData link layer

Publish Date: 2008-08-19

Implement Date: 2009-01-01

Pages: 117 pages

Scope

This standard specifies the frame structure, protocol elements, protocol categories, the content and format of the Exchange Identifier (XID) frame, and the means of determining/negotiating data link layer addresses in an exchange environment for data communication systems that adopt the high-level data link control (HDLC) protocol oriented to bits.

Development Information

Word Count: 222 Thousand words Pages: 117 pages

Replace the following standards

GB/T 7421-1987 Information processing systems—Data communication—High level data link control procedures—Consolidation of classes of procedures GB/T 7496-1987 Information processing systems—Data communication—High-level data link control procedures—Frame structure GB/T 7575-1987 Data communication—High-level data link control procedures—Consolidation of elements of procedures GB/T 14400-1993 Information processing systems—Data communication—High-level data link control balanced classes of procedures—Data-link layer address resolution/negotiation in switched environments GB/T 15698-1995 Information technology—Telecommunications and information exchange between systems—High-level data link control (HDLC)procedures—General purpose XID frame information field content and format

Referenced Standards

GB/T 1988-1998 Information technology—7-bit Coded character set for information interchange GB/T 5271.9-2001 Information technology—Vocabulary—Part 9:Data communication GB/T 9387.1-1998 Information technology—Open systems interconnection—Basic reference Model—Part 1:The Basic Model GB/T 14399-2008 Information technology—Telecommunications and information exchange between systems—High-level data link control procedures—Description of the X.25 LAPB-compatible DTE data link procedures GB/T 15124-1994 Information processing system—Data communication—Multilink procedures ISO/IEC TR 10171:2000

Adopt standards

ISO/IEC 13239:2002

Related Standards

GB/T 7421-1987 Replaced

GB/T 7421-1987 Information processing systems—Data communication—High level data link control procedures—Consolidation of classes of procedures

Publish Date: 1987-03-14

GB/T 7575-1987 Replaced

GB/T 7575-1987 Data communication—High-level data link control procedures—Consolidation of elements of procedures

Publish Date: 1987-03-20

GB/T 7496-1987 Replaced

GB/T 7496-1987 Information processing systems—Data communication—High-level data link control procedures—Frame structure

Publish Date: 1987-03-24

GB/T 15124-1994 Active

GB/T 15124-1994 Information processing system—Data communication—Multilink procedures

Publish Date: 1994-07-16

GB/T 16653-1996 Active

GB/T 16653-1996 ISDN data link layer specification for frame mode bearer services

Publish Date: 1996-12-17

GB/T 16724.2-1996 Active

GB/T 16724.2-1996 Information technology—Telecommunication and information exchange between systems—X.25-DTE conformance testing—Part 2:Data link layer conformance test suite

Publish Date: 1996-12-26