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Cisco Bug: CSCvu01639 - After upgrade, switches prior to -EX misprogramming due to shim collision

Last Modified

Oct 03, 2020

Products (24)

  • Cisco Nexus 9000 Series Switches
  • Cisco Nexus 9516 Switch
  • Cisco Nexus 9396PX Switch
  • Cisco Nexus 93108TC-FX Switch
  • Cisco Nexus 9396TX Switch
  • Cisco Nexus 93120TX Switch
  • Cisco Nexus 93240YC-FX2 Switch
  • Cisco Nexus 9372TX-E Switch
  • Cisco Nexus 9332C Switch
  • Cisco Nexus 9504 Switch
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Known Affected Releases


Description (partial)

There are faults for failed contract rules and prefixes on switches prior to the -EX switches. Furthermore, traffic that is destined to an L3Out gets dropped because the compute leaf switches do not have the external prefix programmed in ns shim GST-TCAM. You might also see that leaf switches prior to the -EX switches do not have all contracts programmed correctly in the hardware.

This issue occurs with switches prior to the -EX switches after an upgrade.

-EX, -FX, -FX2, and later switches do not function in the same manner and are not exposed to this issue.
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