Cisco Bug: CSCvt31437 - DAD links go into err-disable due to portfast bpduguard global config when both members reload
Sep 10, 2020
- Cisco Catalyst 9500 Series Switches
Known Affected Releases
16.11.1 16.12.2 16.9.4 16.9.5 17.3.1
Symptom: DAD links on a stackwise virtual pair are put into err-disable due to "spanning-tree portfast bpduguard" default configuration. Conditions: Following global configurations (or equivalent) are present: spanning-tree portfast bpduguard default spanning-tree portfast default This can happen upon reload of any member of a stackwise virtual setup. This is a day 1 issue which can potentially affect any Cat9K platform running stackwise virtual setup.
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Bug Details Include
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