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Cisco Bug: CSCvu35094 - Switch reloads due to fed crash after sending multicast data packets in pvlan

Last Modified

Oct 14, 2020

Products (6)

  • Cisco Catalyst 3850 Series Switches
  • 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


Description (partial)

A 3850 switch can crash suddenly, generating a system report with a FED process core within:

Switch uptime is 3 minutes
Uptime for this control processor is 5 minutes
System returned to ROM by Critical process fed fault on fp_0_0 (rc=139) at <timestamp>
System restarted at <timestamp>
System image file is "flash:cat3k_caa-universalk9.16.12.03a.SPA.bin"
Last reload reason: Critical process fed fault on fp_0_0 (rc=139)

- The switch has a Private VLAN configured
- The switch is forwarding Multicast data packets through that Private VLAN

Other requisite conditions are unknown.
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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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