HA Active/Passive with Preemption

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TCK2534
L1 Bithead

HA Active/Passive with Preemption

2 firewalls configured with HA active/passive, And enabled preempt on both of firewalls

Everythings find, can synchronize configuration and session

 

firewall-A is active-firewall with priority 100

firewall-B is passive-firewall with priority 120

HA timer settings is recommended

 

But when I was testing for HA switch over by unplugged a interface on Active firewall (firewall-A), firewall-A moves into passive state, then active state again then passive state finally moves into "Preempt loop detected",

 

Actually I know that it will switchover 3 times after change firewall-A to suspend state

 

Is that a normal situation? Why does firewall-A still need to preempt itself as a active firewall even I did not put cable back (port still down)?

 

NikolayDimitrov
L4 Transporter

Have you checked everything in this article by Palo Alto for such issues?

 

https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA10g000000ClhJCAS

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