device state after loss of connection

Hi,

So to answer your question, it depends on which communication channels are down. If all channels including the HA, then the boxes will work as Active-Active since each box will claim the Active role since there is no communication with the peer. This will cause something called Split-Brain and will definitely cause service interruption.

If the HA channel is still up and both devices can reach each other, then the Active box will be determined upon the HA Active Election Criteria. You can check this reply on another cummunity thread explaining the election process.

Hi Giorgio,

Don't mind me to share some idea for your reference.

I think the answer is B) Active Active too.

If you encountering the situation on BIG-IP hardware platform, all connectivity between HA-peer units lost to cause no communication Device Connectivity (Config Sync, Failover unicast...).

But both units failover port connected, the HA connectivity lost still keep Active Standby state.

Thanks and Best Regards,
Alvin Ng