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Cisco Bug: CSCup60475 - Synced MACs missing in HW after VPC peer-reload

Last Modified

Feb 19, 2016

Products (7)

  • Cisco Nexus 9000 Series Switches
  • Cisco Nexus 9516 Switch
  • Cisco Nexus 9396PX Switch
  • Cisco Nexus 9504 Switch
  • Cisco Nexus 3164Q Switch
  • Cisco Nexus 9508 Switch
  • Cisco Nexus 93128TX Switch

Known Affected Releases

6.1(2)I2(2a) 6.1(3)EV(0.1)

Description (partial)

Under rare circumstances it is seen that when a VPC node reloads and comes back online, some MACs may be missing in hardware in the reloaded switch causing flooding for traffic destined to those MACs

The problem usually occurs on large Port,Vlan (vxlan vlan) scale, and seen more often on Redmond2 which has multiple forwarding asics.
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