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ISO/IEC 8885:1993/Amd 9:1995

Extension of HDLC sequence number modulus beyond 128

General information

Withdrawn from 22.08.2002
Directives or regulations
None

Standard history

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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.

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