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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)

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.

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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