4-Node Cluster (2x Active/Active) and "orphaned" zone

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4-Node Cluster (2x Active/Active) and "orphaned" zone

L1 Bithead

Hi,
I'm looking for some insight into the workings of the multi-node cluster functionality when there are more than two nodes.

 

Let's say I have two Active/Active pairs that are clustered with a HA3 Interface.

 

In this case I more specifically wonder how the behavior of session/state synchronization would work if the HA-Pairs had a Zone named differently than the other pair.

 

E.g.

HA Pair-1 Zones : Internet, LAN, Zone1

HA Pair-2 Zones : Internet, LAN, Zone2

 

I know what the documentation says, but what happens if this would be the case? Zone1 and Zone2 leads to completely different Networks. Internet & LAN is the same networks and HA3 would sync state/sessions for those, so they're covered.

 

It kinda hurts my brain just thinking about it, but does anyone have some insight? Maybe you've tried it?

 

1 REPLY 1

Cyber Elite
Cyber Elite

Hello,

Before going down the A/A rabbit hole, make sure you really want that config, eg requirement for asymmetric routing.

https://live.paloaltonetworks.com/t5/general-topics/active-passive-vs-active-active-recommendations/...

 

However in either case, the configurations of the two firewalls in the HA will must be identical.

 

Regards,

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