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Cisco Bug: CSCur49241 - Buffer Boost ACL take Precidence over vPC redirect ACL

Last Modified

Sep 11, 2019

Products (11)

  • Cisco Nexus 9000 Series Switches
  • Cisco Nexus 9516 Switch
  • Cisco Nexus 9396TX Switch
  • Cisco Nexus 9396PX Switch
  • Cisco Nexus 9504 Switch
  • Cisco Nexus 3164Q Switch
  • Cisco Nexus 9332PQ Switch
  • Cisco Nexus 9508 Switch
  • Cisco Nexus 93128TX Switch
  • Cisco Nexus 9372PX Switch
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Known Affected Releases

6.1(2)I2(2b) 6.1(2)I3(1)

Description (partial)

L3 switched packets that need to cross a vPC peer-link will be dropped with the buffer boost feature enabled under certain circumstances.

Also Port-channel consistency will fail.

sh consistency-checker membership port-channels 
Checks: Trunk group and trunk membership table.
Consistency Check: FAILED

Local interface of vPC  is down. So traffic after L3 switch need to cross vPC peer link to  remote vPC "UP" on peer.

Only for 9564TX/9564PX/9536PQ and TOR -N9K-C93128TX N9K-C9396PX
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