12-05-2018 10:38 PM - edited 03-08-2019 04:44 PM
Hi ,
Why do i need or in which senarios i need preempt to be configured on both routers.
Preempt allows the router with it configured to take over the active role if it has a higher priority than the other router.
I heard it is requried when we are tracking interface .
But if you are decreasing the priority based on an external event for Example am tracking an interface on the active router. The active router has a priority of 120 and the standby 110. The tracked interface goes down and the active router decrements it's priority by 20 and will move to standby . Since preempt is configured on Active router , once active router is up it goes back to active router.
Without using preempt on the secondary router it worked as expected during interface tracking . Could you please help on this?
12-06-2018 02:50 AM - edited 12-06-2018 07:19 AM
Hello
In theory when tracking had initiated and decremented the primary hrsp rtr without preemption on the secondary router failover shouldn't occur even with if the secondary rtr now having the higher priority.
The reason being is that when the primary decrements its priority the secondary rtr should not receive any hello message(coup) stating a lower priority from the active primary rtr.
Can you post the output for both rtrs please:
show standby
12-06-2018 06:23 AM
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