High Availability

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High Availability

L1 Bithead

The Palo Alto instructions to set up High Availability are fairly straightforward, but the devices upstream and downstream barely get a mention. In our case, downstream we have two Cisco switches and multiple VMs attached. Upstream are two Cisco switches to a larger network.

We are considering link-state tracking on the Cisco switches to create the redundancy for the Palo Alto's to failover. Any suggestions or tips?


L5 Sessionator

Hello jmck9999,

The following document illustrates Palo Alto's recommended best practices for HA failover scenarios for link and path monitoring:

High Availability Failover Optimization

Hope that helps!

Thanks and regards,

Kunal Adak

L6 Presenter

Hello Jmck9999,

You can find supporting documents on bellow link.



Hardik Shah

L7 Applicator

Since you have dual switches on both sides you are in a good position for reliability in hardware failure modes.

You do need to be sure that your PA tracking will force the failover if EITHER the upstream OR downstream switch fails.

Steve Puluka BSEET - IP Architect - DQE Communications (Metro Ethernet/ISP)
ACE PanOS 6; ACE PanOS 7; ASE 3.0; PSE 7.0 Foundations & Associate in Platform; Cyber Security; Data Center

L0 Member

Hi Support,


How can we deploy Palo Alto Firewall in existing Cloud Network with HA mode.


Please help!!

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