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Cisco Bug: CSCsz25152 - All vlan interfaces go down afer VPC goes down

Last Modified

Feb 09, 2017

Products (1)

  • Cisco Nexus 7000 Series Switches

Known Affected Releases


Description (partial)


On vPC Primary switch, even when there are vPCs or vPC peer-link up (STP Forwarding state) in a VLAN, the VLAN interfaces may go down.


You will see this symptom only on vPC Primary switch, and the following condition triggers incorrect count of forwarding ports in a VLAN which results in this bug.

      when vPC on Primary switch is down, and later the corresponding vPC is down on secondary vPC switch.
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