Administrator Guide

If are using VRRP version 3, you must congure the timer values in multiples of 25 centisecs.
To change the advertisement interval in seconds or centisecs, use the following command. A centisecs is 1/100 of a second.
1 Change the advertisement interval setting. INTERFACE-VRID mode advertise-interval seconds The range is from 1 to 255
seconds. The default is 1 second.
2 For VRRPv3, change the advertisement centisecs interval setting. INTERFACE-VRID mode advertise-interval centisecs
centisecs
The range is from 25 to 4075 centisecs in units of 25 centisecs.
The default is 100 centisecs.
Example of the advertise-interval Command
Example of Verifying the Congured Advertisement Interval
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
advertise-interval 10
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)#
Track an Interface or Object
You can set the Dell Networking OS to monitor the state of any interface according to the virtual group.
Each VRRP group can track up to 12 interfaces and up to 20 additional objects, which may aect the priority of the VRRP group. If the
tracked interface goes down, the VRRP group’s priority decreases by a default value of 10 (also known as cost). If the tracked interface’s
state goes up, the VRRP group’s priority increases by 10.
The lowered priority of the VRRP group may trigger an election. As the Master/Backup VRRP routers are selected based on the VRRP
group’s priority, tracking features ensure that the best VRRP router is the Master for that group. The sum of all the costs of all the tracked
interfaces must be less than the congured priority on the VRRP group. If the VRRP group is congured as Owner router (priority 255),
tracking for that group is disabled, irrespective of the state of the tracked interfaces. The priority of the owner group always remains at
255.
For a virtual group, you can track the line-protocol state or the routing status of any of the following interfaces with the interface
interface parameter:
• 10 Gigabit Ethernet: enter tengigabitethernet slot/port.
• Port channel: enter port-channel number.
• VLAN: enter vlan vlan-id where valid VLAN IDs are from 1 to 4094.
For a virtual group, you can also track the status of a congured object (the track object-id command) by entering its object
number.
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Virtual Router Redundancy Protocol (VRRP)