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HA Sync Address flapping in a cluster

Question asked by Romaric DUCLOUX on Jul 2, 2018
Latest reply on Jul 26, 2018 by Dameon Welch-Abernathy

Hi everyone,


We are facing a strange issue in one of our cluster. After adding a new interface in the cluster, the unique address of the other member showed in cphaprob state is flapping. the address is constantly changing if I'm watching cphaprob state between all the interfaces addresses (sync address too).


However, the cluster is working fine. (no failover)


On member 1 I have this type :

1 (local)  'SYNC ADDRESS'                       100%            Active
2             'OTHER INTERFACE ADDRESS'     0%              Standby


And on member 2 :

1              'OTHER INTERFACE ADDRESS'   100%            Active
2 (local)     'SYNC ADDRESS'                           0%              Standby


The cphaprob -a if is good (all interfaces UP), I'm in Broadcast CCP due to TP switches.


netstat -in shows no error at all.


The strange thing is that if I remove the new interface from topology, the cluster is back to normal. I already contacted Checkpoint regarding this issue and they gave me the sk43984 but it's not helping me.


Thanks for your time,