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Cisco Bug: CSCus68464 - In RSTP/MST during conversion, port ALT BLK does not send agreement

Last Modified

Mar 03, 2018

Products (1)

  • Cisco Catalyst 6000 Series Switches

Known Affected Releases

15.2(1)SY0.1

Description (partial)

Symptom:
In RSTP/MST during conversion, port ALT BLK does not send BPDU with agreement flag set. This cause port on other end to go through blocking and learnign states (it takes 30 seconds for port to go into forwarding state).

Conditions:
Problem is observed every time when there is change in topology. Problem is observed on all Catalyst switches
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