Fortinet Failover

[Logesh08]

Hello Everyone,

I am using device model 200 F. When failover happens from primary to secondary it takes 2 seconds. But the failover from secondary to primary takes 30 seconds.  

any suggestion pls.

[Logesh08]

Hi,

It is a cisco switch. Sure, I will check the logs. Thank you.

[aguerriero]

Since it is based on link status how long are you waiting for the LACP and possible STP protocols and CAM tables to converge before initiating a fail back.

Default LACP timers on some switches are normally defaulted to slow/long (30 seconds) to send LACP PDUs.

Spanning tree on the upstream/downstream switches can also come into play depending on whether or not you are using PVST, RPVST, MST...

[Logesh08]

Hi, I do not have much visibility on the switch side. Let me check that. Thank you for your valuable suggestions. 

[aguerriero]

For cisco check if the switch or switches are stacked, VSS, or vPC. There will also be delay for links that are spread across multiple switches in a virtual ha cluster.

[Logesh08]

ok. Thank you.