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Cisco Bug: CSCtf30588 - K5: for PS entries logical lookup order is broken occasionally

Last Modified

Jan 23, 2017

Products (1)

  • Cisco Catalyst 4000 Series Switches

Known Affected Releases

12.2SG

Description (partial)

Symptom:
Very occasionally, with odds increasing towards moderate to high level of mac-address table utilization, port security (on a random port) might exhibit symptoms that host behind secured port does not receive any traffic (except local CPU outbound traffic)

Conditions:
This problem exposure is related to the dynamic picture of utilization of mac-address table and odds of used mac-address table distribution. It's impossible to predict whether certain combination of MACs/Ports/vlns would to prone to this problem or not.
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  • Status
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