Do i required preempt command on both router ( Active and Standby Router. ).

[Ayush Srinet]

Do i required preempt command on both router ( Active and Standby Router. ).

[Bilal Nawaz]

For HSRP - yes it is common practice to configure preempt on both for faster failover, and to ensure when all participating routers are in HSRP group are alive, that one of them is always the active.