Users Guide

• Prevent any BACKUP router with a higher priority from becoming the MASTER router.
INTERFACE-VRID mode
no preempt
Examples of Disabling Preempt
Re-enable preempt by entering the preempt command. When you enable preempt, it does not display in the show commands,
because it is a default setting.
The following example shows how to disable preempt using the no preempt command.
Dell(conf-if-te-1/1)#vrrp-group 111
Dell(conf-if-te-1/1-vrid-111)#no preempt
Dell(conf-if-te-1/1-vrid-111)#
The following example shows how to verify preempt is disabled using the show conf command.
Dell(conf-if-te-1/1-vrid-111)#show conf
!
vrrp-group 111
authentication-type simple 7 387a7f2df5969da4
no preempt
priority 255
virtual-address 10.10.10.1
virtual-address 10.10.10.2
virtual-address 10.10.10.3
virtual-address 10.10.10.10
Dell(conf-if-te-1/1-vrid-111)#
Changing the Advertisement Interval
By default, the MASTER router transmits a VRRP advertisement to all members of the VRRP group every one second, indicating it is
operational and is the MASTER router.
If the VRRP group misses three consecutive advertisements, the election process begins and the BACKUP virtual router with the
highest priority transitions to MASTER.
NOTE: To avoid throttling VRRP advertisement packets, Dell Networking OS recommends increasing the VRRP
advertisement interval to a value higher than the default value of one second. If you do change the time interval between
VRRP advertisements on one router, change it on all participating routers.
To change the advertisement interval, use the following command.
• Change the advertisement interval setting.
INTERFACE-VRID mode
advertise-interval seconds
The range is from 1 to 255 seconds.
The default is 1 second.
Examples of the advertise-interval Command
The following example shows how to change the advertise interval using the advertise-interval command.
Dell(conf-if-te-1/1)#vrrp-group 111
Dell(conf-if-te-1/1-vrid-111)#advertise-interval 10
Dell(conf-if-te-1/1-vrid-111)#
The following example shows how to verify the advertise interval change using the show conf command.
Dell(conf-if-te-1/1-vrid-111)#show conf
!
vrrp-group 111
962
Virtual Router Redundancy Protocol (VRRP)