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L4 Transporter

Is there anything such as a particle failover with a palo alto firewall? Can it start to failover and suddenly fail back and block some traffic


L7 Applicator

There should be no partial failover.

Either active/passive or active/active.

Do you see failover event in System log?

Enterprise Architect, Security @ Cloud Carib Ltd

Cyber Elite
Cyber Elite

PAN-OS 8.0.1?


I didn't think it was possible either but someone asked and I wanted more than just my answer I am about to check the system logs 🙂

@Raido_Rattameister  @vsys_remo


what is the event to look for in the system logs for a fail over is it failover?

( subtype eq ha)


Enterprise Architect, Security @ Cloud Carib Ltd


I thought you were lauging at me LOL it seems to have lost it heartbeat connection but could that break anything once that condition is cleared?spiltbraind.PNG

If firewalls don't see each other over HA1 then both are active and accept sessions.

Shut down one firewall if you can't fix HA1 to get things up and running.

You have split brain situation.

Enterprise Architect, Security @ Cloud Carib Ltd



Its no longer in split brain that I can see , but we could restart the passive firewall right now and see what happens. It is trying to send traffice to a router IP that no longer exists

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