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Cisco Bug: CSCvt22238 - C9200L/C9200 : Interface counter/MAC learning/MAC ageing does not work/ 32 prefix stuck

Last Modified

Oct 12, 2020

Products (6)

  • Cisco LAN Switch Software
  • Cisco Catalyst 9500 Series Switches
  • Cisco Catalyst 9200 Series Switches
  • Cisco Catalyst 9600 Series Switches
  • Cisco Catalyst 9300 Series Switches
  • Cisco Catalyst 9400 Series Switches

Known Affected Releases

16.12.1 16.12.1s 16.12.2 16.12.3 17.1.1 17.2.1

Description (partial)

Below symptoms can be observed:

1. Interface counters do not increment but traffic is forwarded
2. MAC learning issue : new MACs will not be learned, existing MACs may not be aged out, and MAC moves wont be updated. 
3. Packet drops to specific hosts in subnet

Catalyst 9200L/9200 platforms running 16.12.1 or 16.12.2 or 16.12.3 or 17.1.1 or 17.2.1 versions after 7weeks of  uptime.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
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