Dell Force10 Z9000 Configuration Manual page 804

• 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.
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
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
Track an Interface or Object
You can set 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 affect 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 configured priority on the VRRP group. If the VRRP group is configured 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:
• For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet then the slot/port information.
• For a port channel interface, enter the keywords port-channel then a number.
• For a VLAN interface, enter the keyword vlan then a number from 1 to 4094.
For a virtual group, you can also track the status of a configured object (the track object-id command) by entering its object
number.
NOTE: You can configure a tracked object for a VRRP group (using the track object-id command in INTERFACE-
VRID mode) before you actually create the tracked object (using a track object-id command in CONFIGURATION
mode). However, no changes in the VRRP group's priority occur until the tracked object is defined and determined to be
down.
In addition, if you configure a VRRP group on an interface that belongs to a VRF instance and later configure object tracking on an
interface for the VRRP group, the tracked interface must belong to the VRF instance.
804
Virtual Router Redundancy Protocol (VRRP)