Cisco Bug: CSCte80967 - New HSRP group in ES20 dot1q subint flaps all groups of same phy int.
Jan 28, 2017
- Cisco IOS
Known Affected Releases
Symptom: When configuring new HSRP groups in dot1q subinterfaces of ES20 physical ports, all HSRP groups under that physical ES20 intefrace may flap just right after the implementation of a that HSRP group or when triggering a HSRP failover of any of the existent HSRP groups. Events happening chronologically after the config change: - All HSRP groups are unexpectedly moving to INIT state on c7600 side. - Then the other end connected to the ES20 port is reporting a link updown event. - The link is also flapped in the c7600 side at that moment (link updown). - That causes an other renintialization of HSRP with all groups moving to INIT - That causes the issue to start over again. Conditions: - Same HSRP group is configured in all the subinterfaces.
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.
Bug Details Include
- Full Description (including symptoms, conditions and workarounds)
- Known Fixed Releases
- Related Community Discussions
- Number of Related Support Cases