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Cisco Bug: CSCup65482 - Nexus3500: Traffic incorrectly punted to CPU matching copp-s-l3mtufail

Last Modified

Mar 06, 2018

Products (2)

  • Cisco Nexus 3000 Series Switches
  • Cisco Nexus 3548 Switch

Known Affected Releases

6.0(2)A1(1)

Description (partial)

Symptom:
Traffic flowing through the switch may get punted to the CPU, matching the 'copp-s-l3mtufail' class in the CoPP.

Conditions:
Nexus 3500 switch running one of the affected releases
AND
This issue is triggered after SVI(s) flap or going down.
On SVI flap, due to this bug, MTU value is getting misprogrammed.
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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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