Cisco Bug: CSCuq74531 - Wrong mac acl counters during acl update
May 20, 2017
- Cisco Nexus 7000 Series Switches
Known Affected Releases
Symptom: There will be mismatch of packets counters between interface and acl statistics, when multiple ACL inplace modifications happened before 'show mac access-list' for acl applied on an interface with high rate traffic going on. Conditions: The issue happened in a very specific scenario that, before PI/aclmgr queried ACL-PD for statistics there was two continuous ACE modification, in such cases PD will typically lose the initial stats since the ACL h/w statistics are not preserved during modification due to the h/w indexes change . While because these modification happened before PI query PD for the statistics, the PD counters during this interval will be lost, which cause the mismatch between interface and acl counters.
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