The vrrp recover-delay command sets a status recovery delay for all VRRP groups.
The undo vrrp recover-delay command restores the default value.
By default, the status recovery delay is 0 seconds, indicating that VRRP group flapping is not suppressed.
Usage Scenario
If the status of the interface on which the VRRP group is configured frequently changes, the VRRP status frequently flaps. To prevent this problem, run the vrrp recover-delay command to set a status recovery delay to suppress VRRP group flapping.
When a device or board is restarted and a large number of services are configured, the backup device may not immediately receive protocol packets from the master device after the restart. As a result, the backup device becomes the master device because it does not receive protocol packets within a specified period, causing VRRP status flapping or the configured preemption delay to fail to take effect. To prevent this problem, run the vrrp recover-delay command to set a status recovery delay for the VRRP group.Prerequisites
After a status recovery delay is set for a VRRP group, the VRRP group responds to a received interface Up event only after the configured status recovery delay elapses, which prevents interface flapping from causing VRRP group flapping.
Precautions
If the vrrp recover-delay command is run in the system view on a device, the same status recovery delay is set for all VRRP groups on the device.