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Requested revision
Standard:802.1CBClause:7.4.3.6
Clause title:ShiftSequenceHistory
Rationale for revision
The VectorRecoveryAlgorithm calls ShiftSequenceHistory routine when it processes a packet with a sequence number that is in the future (but still falls within the SequenceHistory). The ShiftSequenceHistory routine erroneously increments the counter frerCpsSeqRcvyLostPackets as it can’t differentiate the packets that are actually lost from the packets that are not yet seen. This is due to the fact that SequencyHistory is initialized to all zeros by the SequenceRecoveryReset routine that initializes the SequenceRecovery instance.
Proposed text
Discuss. Perhaps need an additional variable that indicates the initial state. Size of this variable is same as size of the SequenceHistory array.
Impact on existing networks
No impact given that frerCpsSeqRcvyLostPackets counting is broken with the current definition.
Originator
Name:Venkat ArunarthiEmail:venkat.arunarthi@broadcom.com
Affiliation:Broadcom
Submitted:2024-10-31