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Cisco Bug: CSCvu97189 - Show platform forward (SPF) causes device freeze or reload

Last Modified

Sep 18, 2020

Products (1)

  • Cisco Catalyst 9400 Series Switches

Known Affected Releases

16.12.3 16.9.5

Description (partial)

Symptom:
Device control-plane gets broken (e.g. IGP neighbours are not formed, BFD is down, etc.). 
Device state corresponds control-plane freeze (ping does not work also for locally configured IP addresses).
Also CDP/... other L2 packets are not reaching the neighbor devices.
StackWise Virtual might be impacted and Stack Merge with "stack merge due to incompatibility" error message might be seen.

Conditions:
Running the following command: "show platform hardware fed active forward ..." when there are a lot of (~1000+) packets per second being sent from CPU.
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