C9300 failover time in stacking

[osman869]

what is the time C9300  Standby Takes over as Active in stacking?

I have 2 c9300 switches in the stack.

[Georg Pauwen]

Hello,

with Stackwise, the failover time is milliseconds and not noticeable (due to Nonstop Forwarding and Stateful Switchover (NSF/SSO) technology).

[balaji.bandi]

When the Active Until fails, Service nondisruptive (subject to you have Dual Uplinks connected (Switch1 and Switch2) to Core or distribution switch).

example : ( this 4 switches in the stack), if you have 2 switches, second one before active, and wait for failed one to join back, bare in mind, the second will be active (even though active come back online again).