PA-3260 HA firewalls flapping - Dataplane restarts, PanOS-10.2.5

[UtkarshKumar]

Hello Experts

We have a pair of HA PA-3260 firewalls and we are running into issues of multiple random dataplane restarts causing HA failover. We were initially on 10.2.4-h2 and after facing the issue with random restarts decided to upgrade to the 10.2.5 release.

From the below article, this should have been resolved in 10.2.5. Still, we are having issues and can see in the system logs:

HA Group 1: Dataplane is down: path monitor failure
9: dp0-path_monitor HB failures seen, triggering HA DP down
dp0-path_monitor: Exited 1 times, must be manually recovered.
dp0-path_monitor: exiting because service missed too many heartbeats
Internal packet path monitoring failure, restarting dataplane

https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA14u000000HCcXCAW

>> debug dataplane internal pdt bcm show port status, from both HA Pair shows:
xe8 up 10G FD SW Yes Disable TX RX None D KR 163
xe8 up 10G FD SW Yes Disable TX RX None D KR 16360

As we are aware that PA-3200 series are susceptible to these issues and as per Palo article we have already upgraded to 10.2.5 still we are having these issues.

Any suggestions would be greatly appreciated.

#PANOS-10.2.5 

[S.Cantwell]

Good Day.

I think that you should continue to stick with PANW support and let them know their fix in 10.2.5 is not working.  Perhaps there is something else.  For me, I am already up to 10.2.6, and have not experienced these issues.  I would continue to follow TAC's and Engineering's lead/recommendations.  

Let us know what else we are able to do, to support you.

Good Luck.

[KhaleelE]

Have you resolved the issue?

[KhaleelE]

I have similar issue as well. Is this configuration issue or hardware issue?