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Cisco Bug: CSCus71454 - PVLAN VPC: peer-link flap causes primary legs in PVLAN host mode to flap

Last Modified

Feb 06, 2017

Products (1)

  • Cisco Nexus 7000 Series Switches

Known Affected Releases

6.2(12)S29

Description (partial)

Symptom:
In a Private-Vlan VPC setup in private-vlan host mode, when peer link flaps, VPC leg in private-vlan host mode also flaps and comes back up in some time. There will be traffic loss from the VPC leg until the leg bringup happens again.

Conditions:
The VPC legs have to be private-vlan host mode as follows:  "switchport mode private-vlan host"

Example configuration:
interface port-channel10
  switchport
  switchport mode private-vlan host
  switchport private-vlan host-association 2 3
  vpc 1
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  • Status
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