Dell EMC SmartFabric OS10 User Guide Release 10.5.0

Configure the delay restore timer

When the secondary VLT node boots, it waits for a pre-configured amount of time (delay restore) to restore the VLT port status. This delay enables VLT peers to complete the control data information exchange.

If the peer VLT device was up at the time the VLTi link failed, the system delays bringing up the VLT ports after reload or peer-link restoration between the VLT peer switches.

When both the VLT peers are up and running, and if the VLTi fails with the VLT heartbeat up, the secondary peer brings down the VLT ports. When the VLTi comes up, the secondary peer does not bring up its VLT ports immediately. The VLT ports are brought up only after the VLT port restoration timer expires. The delay restore timer enables both VLT peers to synchronize the control information with each other.

The default timer is 90 seconds. You can use the delay-restore seconds command to modify the duration of the timer.

OS10(config)# vlt-domain 1
OS10(conf-vlt-1)# delay-restore 100