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Cisco Bug: CSCvv26075 - On Auth port, timestamp update is not happening for Authz MAC address upon RX of control-plane/BPDU

Last Modified

Sep 01, 2020

Products (1)

  • Cisco IOS

Known Affected Releases

16.12.3

Description (partial)

Symptom:
Authentication inactivity timer does not get affected by control traffic - only data traffic resets the inactivity timer. Since timer was timing out, a reauth was triggered for this interface, flapping the port periodically.

Conditions:
- authentication enabled (neat/mab/dot1x)
- authentication inactivity timer set on the interface
- only control traffic flows on this interface
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  • Full Description (including symptoms, conditions and workarounds)
  • Status
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