Cisco Bug: CSCtf25646 - cat4k in MST mode does not send BPDU's unless access vlan1 or trunk .
Feb 05, 2017
- Cisco Catalyst 4000 Series Switches
Known Affected Releases
Symptom: Cat4k stops sending BPDU's unless port is configured in access vlan 1 or configured for trunk . seen on 12.2(46)SG for SUP4/5 and 12.2(46)SG for SUP6, Issue not seen with 12.2(40)SG on SUP4/5. Conditions: STP loop is triggered if switchport access ports are configured with access vlan other than vlan 1. Not seen if mode trunk configured.
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Bug Details Include
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