ISO/IEC 8885:1993/Amd 9:1995Withdrawn

Information technology — Telecommunications and information exchange between systems — High-level data link control (HDLC) procedures — General purpose XID frame information field content and format — Amendment 9: Extension of HDLC sequence number modulus beyond 128

Technologies de l'information — Télécommunications et échange d'informations entre systèmes — Procédures de commande de liaison de données à haut niveau (HDLC) — Format et contenu du champ d'information de la trame XID pour application générale — Amendement 9: Extension du module du numéro de séquence HDLC au-delà de 128

This edition has been replaced by ISO/IEC 13239:2002.

Abstract / scope

This amendment increases the modulus number (i.e. the sequence number) in steps up to a maximum of 2 147 483 648 which can be represented in 31 bits. This is done by the introduction of a new "Set Mode" command that can be used to negotiate or indicate the modulus in the absence of or to override a default value. This uses an optional information filed in the "Set Mode" command.

Life cycle

Replaced by

ISO/IEC 13239:2002PublishedInformation technology — Telecommunications and information exchange between systems — High-level data link control (HDLC) proceduresInternational Standard · Published 22 Aug 2002 · ISO/IEC JTC 1/SC 6