CSA - CAN/CSA-ISO/IEC 7776A-96
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 AMENDMENT 1: Modulo 32 768 and multi-selective reject option
inactive
| Organization: | CSA |
| Publication Date: | 1 December 2006 |
| Status: | inactive |
| Page Count: | 79 |
scope:
Introduction
This amendment to ISO/IEC 7776:1995 adds the multi-selective reject option (option 3.3) and modulo 32 768 (option 10.2) from ISO/IEC 7809:1993. This amendment enhances ISO/IEC 7776:1995 in the following areas:
- it allows more efficient recovery of errored or lost I frames by selectively requesting retransmissions of one or more I frames with a single request; this improved efficiency is especially beneficial over links that have high data rates or large propagation delays.
- link efficiency is improved by retransmitting only errored or lost I frames; correctly received I frames are saved by the DTE for deferred delivery;
- allows for a much larger modulo for operation over links that have high data rates or large propagation delays;
- the maximum number of outstanding frames k can be as large as the modulus number minus 1;
- the additional procedures are fairly simple to implement.
Document History
December 1, 2006
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 AMENDMENT 1: Modulo 32 768 and multi-selective reject option
Foreword
ISO (the international Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized System for worldwide standardization. National bodies...
CAN/CSA-ISO/IEC 7776A-96
December 1, 2006
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 AMENDMENT 1: Modulo 32 768 and multi-selective reject option
Introduction
This amendment to ISO/IEC 7776:1995 adds the multi-selective reject option (option 3.3) and modulo 32 768 (option 10.2) from ISO/IEC 7809:1993. This amendment enhances ISO/IEC 7776:1995...
April 1, 1996
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
This International Standard defines an application of the following HDLc standards: ISO/IEC 3309, ISO/IEC 4335, ISO 7478, and ISO/IEC 7809. When there is difficulty in the interpretation of a...
January 1, 1996
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
This International Standard defines an application of the following HDLC standards: ISO/IEC 3309, ISO/IEC 4335, IS0 7478. and ISOiIEC 7809. When there is difficulty in the interpretation of a...
January 1, 1996
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
This International Standard defines an application of the following HDLc standards: ISO/IEC 3309, ISO/IEC 4335, ISO 7478, and ISO/IEC 7809. When there is difficulty in the interpretation of a...