Fast Vrrp State Flapping - HPE FlexFabric 5700 Series Configuration Manual

If multiple masters coexist for a longer period, it might be because the masters cannot receive
advertisements from each other, or because the received advertisements are illegitimate.
Solution
Ping between these masters, and do the following checks:
•
If the ping fails, examine network connectivity.
•
If the ping succeeds, check for configuration inconsistencies in the number of virtual IP
addresses, virtual IP addresses, and authentication. For IPv4 VRRP, also make sure a
consistent version of VRRP is configured on all routers in the VRRP group. For VRRPv2, make
sure consistent VRRP advertisement interval is configured on the routers in the VRRP group.

Fast VRRP state flapping

Symptom
Fast VRRP state flapping occurs.
Analysis
The VRRP advertisement interval is set too short.
Solution
Increase the interval for sending VRRP advertisements or introduce a preemption delay.
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