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Cisco Bug: CSCvu44284 - Incorrect dot1q/dot1p priority PCP value set for IPv6 ND packets

Last Modified

Aug 31, 2020

Products (1)

  • Cisco Catalyst Digital Building Series Switches

Known Affected Releases

15.6(1.6)

Description (partial)

Symptom:
Transit IPv6 ND packets received on access switch that needs to be forwarded on uplink trunk, are marked in dot1q ethernet header as Priority: Excellent Effort (0x03), e.g.:

    011. .... .... .... = Priority: Excellent Effort (3)
    ...0 .... .... .... = CFI: Canonical (0)
    <SNIP>
    Type: IPv6 (0x86dd)

Conditions:
CDB switch with transit IPv6 ND packets
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