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Cisco Bug: CSCup49810 - [5.1.2] HSRP standby state is sporadically flapping

Last Modified

Jan 13, 2017

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases


Description (partial)

HSRP's standby state is sporadically changing in a very short time during normal operation without any other specific trigger. This event can be detected 2 ~ 5 times in a day after IOX upgraded to 5.1.2 
Problem Pattern: Standby —> Active —> Speak  —> Standby. 

There was no issue in the previous 4.3.4 in the same ASR9006.
There is no service impact reported up to now.

normal operation. 
this issue begins to be shown after sw upgraded to 5.1.2
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