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Cisco Bug: CSCup88022 - G bit is not set on SUP but set on LC after vPC peer-link flap

Last Modified

Feb 15, 2018

Products (1)

  • Cisco Nexus 7000 Series Switches

Known Affected Releases

7.1(0)D1(0.162)

Description (partial)

Symptom:
Unicast arp reply destined to vPC peer's mac is forwarded to the RPC in a mixed mode VDC instead of peer-link DI.  The arp reply is then forwarded to the peer-link DI by the M-series LC and dropped on egress of the PL interfaces under the following:

slot x quoted "show hardware internal errors"

73 EB credited packet drop                       0000000000000004  23-24 -

506 Egress crdt pkts LTL/Forwarding drop          0000000000000004  23-24 -

Conditions:
Peer gateway disabled
Peer-link flap
Module reload of module that has peerlink
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