backup-hello-interval

Configures the interval at which backup Virtual Router Redundancy Protocol (VRRP) routers advertise their existence to the master router.
Syntax
backup-hello-interval seconds
no backup-hello-interval seconds
Command Default

The default backup hello interval is 60 seconds.

Parameters
seconds
The interval, in seconds, at which a backup VRRP router advertises its existence to the master router. Valid values range from 60 through 3600.
Modes

VRID interface configuration mode

Usage Guidelines

The interval is the length of time, in seconds, between each advertisement sent from the backup routers to the master router. The advertisement notifies the master router that the backup is still active. If the master router does not receive an advertisement from the backup router within a designated amount of time, the backup router with the highest priority can assume the role of master.

The backup-hello-interval command is configured only on VRRP backup routers and is supported by VRRP and VRRP Extended (VRRP-E).

The no form disables the advertisement of a VRRP backup router to a VRRP master router.

Examples

The following example enables advertisements from the VRRP backup router and sets the hello message interval to 80 seconds. 

device# configure terminal
device(config)# router vrrp
device(config)# interface ethernet 1/1/6
device(config-if-e1000-1/1/6)# ip address 10.53.5.1/24
device(config-if-e1000-1/1/6)# ip vrrp vrid 1
device(config-if-e1000-1/1/6-vrid-1)# backup priority 90
device(config-if-e1000-1/1/6-vrid-1)# advertise backup
device(config-if-e1000-1/1/6-vrid-1)# backup-hello-interval 80
Parent topic: Commands A and B