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Cisco Bug: CSCvs22600 - FWM crash when bringing up VPC link

Last Modified

Jan 16, 2020

Products (12)

  • Cisco Nexus 5000 Series Switches
  • Cisco Nexus 5548P Switch
  • Cisco Nexus 5596UP Switch
  • Cisco Nexus 5624Q Switch
  • Cisco Nexus 6004 Switch
  • Cisco Nexus 5672UP Switch
  • Cisco Nexus 6001 Switch
  • Cisco Nexus 5696Q Switch
  • Cisco Nexus 56128P Switch
  • Cisco Nexus 5548UP Switch
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Known Affected Releases


Description (partial)

A switch may crash with an FWM hap reset when bringing up a port-channel used as VPC peer link:

2019 Oct 31 20:31:47 %$ VDC-1 %$ %SYSMGR-2-SERVICE_CRASHED: Service "fwm" (PID 3777) hasn't caught signal 11 (core will be saved).
2019 Oct 31 20:31:47  %$ VDC-1 %$ %SYSMGR-2-HAP_FAILURE_SUP_RESET: System reset due to service "fwm" in vdc 1 has had a hap failure
2019 Oct 31 20:32:03  %$ VDC-1 %$ Oct 31 20:32:03 %KERN-0-SYSTEM_MSG: [ 1761.089574] Shutdown Ports.. - kernel

Suspected multiple VPC port-channels across several FEXs
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