Cluster Failover

[ESpataro]

Can anyone tell me from the below the reason for this failover ?

Cluster Mode:   High Availability (Active Up) with IGMP Membership

ID         Unique Address  Assigned Load   State          Name                                              

1          1.1.1.1         0%              STANDBY        kerberus1      
2 (local)  1.1.1.2         100%            ACTIVE         kerberus2      


Active PNOTEs: None

Last member state change event:
   Event Code:                 CLUS-114904
   State change:               ACTIVE(!) -> ACTIVE
   Reason for state change:    Reason for ACTIVE! alert has been resolved
   Event time:                 Thu Oct 13 14:48:32 2022

Last cluster failover event:
   Transition to new ACTIVE:   Member 1 -> Member 2
   Reason:                     Available on member 1
   Event time:                 Thu Oct 13 12:44:14 2022

Cluster failover count:
   Failover counter:           16
   Time of counter reset:      Thu Nov 25 20:44:45 2021 (reboot)