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Cisco Bug: CSCun13333 - N3k TCAM is not programmed correctly for CoPP ACL

Last Modified

Dec 18, 2017

Products (2)

  • Cisco Nexus 3000 Series Switches
  • Cisco Nexus 3548 Switch

Known Affected Releases

6.0(2)A1(1a) 6.0(2)A1(1b)

Description (partial)

Symptom:
On N3k platform (N3K-C3548P-10G) with NX-OS 6.0(2)A1(1a), 6.0(2)A1(1b) TCAM misprogramming might be seen for CoPP classes. As a consequence some control plane protocol instabilities might be observed as some of the protocols could be mistakenly going into class-default CoPP class. The routing protocol packets could be intermittently dropped, BGP sessions flapping might be seen due to Holdtimer period expired.

Conditions:
The issue was seen after NX-OS upgrade to the affected NX-OS versions.
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