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Cisco Bug: CSCvi13167 - 16.8.1: Traffic drops to 50% after SW when there is mulitple core facing SVI

Last Modified

Aug 08, 2019

Products (1)

  • Cisco IOS

Known Affected Releases

16.8.1

Description (partial)

Symptom:
Traffic drops to 50% upon switchover when there are multiple core facing SVIs configured.
After switchover, the standby becomes active but traffic drops by 50%

Conditions:
This is observed when the switch has core facing SVIs.  Also "graceful-restart" is not configured
for BGP and/or LDP.  And OSPF not configured with "nsf/nsr"
Under such conditions, when a switchover happens and standby supervisor becomes active
traffic drops by 50%.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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