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Cisco Bug: CSCvv07632 - EVPN SYNC IPv6 ND entry is not synced to standby RP causing traffic loss during RPFO

Last Modified

Sep 16, 2020

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases

7.2.2.BASE 7.3.1.BASE

Description (partial)

Symptom:
Issue was observed only on Hot-Standy supported platform RSP4 with EVPN feature.
After RPFO there is a traffic drop for around ~40s. 
As there was no SYNC entry installed on the Standby post RPFO there is a traffic drop, after a delay of ~40s the entry was installed by EVPN and traffic resumed.

Conditions:
Issue is seen on HA supported platform with EVPN feature.
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Bug Details Include

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