Active/Standby configuration

Hello,

 

I have a question about active/standby configuration.

 

Actually, we have two clusters of F5 configured in active/standby configuration. We had a network failure on the HA vlan during few seconds.

 

Two members of each clusters are passed in active mode.

 

When HA goes back up, which parameter(Self IPs, MAC,...) is used to decide which members become active ?

 

In the first cluster, actif member is the same after network failure. In the second clustrer, I see a failover.

 

Nov 6 14:55:59 bigipadc3 notice mcpd[6517]: 01071432:5: CMI peer connection established to xxx.www.eee.rrr port yyyy Nov 6 14:55:59 bigipadc3 notice sod[5365]: 010c004a:5: Leaving active in favor of active peer.

 

Nov 6 14:55:59 bigipadc3 notice sod[5365]: 010c0052:5: Standby for traffic group /Common/traffic-group-1.

 

Nov 6 14:55:59 bigipadc3 notice sod[5365]: 010c0018:5: Standby

 

Thanks in advance for your response.