Configuring Basic Vrrp Parameters; Configuring The Owner; Configuring A Backup; Configuration Rules For Vrrp - Foundry Networks Switch and Router Installation And Configuration Manual

Foundry Switch and Router Installation and Configuration Guide
Parameter Description
Track priority A VRRP or VRRPE priority value assigned to the
tracked port(s). If a tracked port's link goes down, the
VRID port's VRRP or VRRPE priority changes.
•
•
Backup preempt Prevents a Backup with a higher VRRP priority from
mode taking control of the VRID from another Backup that
has a lower priority but has already assumed control
of the VRID.

Configuring Basic VRRP Parameters

To implement a simple VRRP configuration using all the default values, enter commands such as the following.

Configuring the Owner

Router1(config)# router vrrp
Router1(config)# inter e 1/6
Router1(config-if-1/6)# ip address 192.53.5.1
Router1(config-if-1/6)# ip vrrp vrid 1
Router1(config-if-1/6-vrid-1)# owner
Router1(config-if-1/6-vrid-1)# ip-address 192.53.5.1
Router1(config-if-1/6-vrid-1)# activate

Configuring a Backup

Router2(config)# router vrrp
Router2(config)# inter e 1/5
Router2(config-if-1/5)# ip address 192.53.5.3
Router2(config-if-1/5)# ip vrrp vrid 1
Router2(config-if-1/5-vrid-1)# backup
Router2(config-if-1/5-vrid-1)# ip-address 192.53.5.1
Router2(config-if-1/5-vrid-1)# activate

Configuration Rules for VRRP

• The interfaces of all routers in a VRID must be in the same IP sub-net.
• The IP address(es) associated with the VRID must already be configured on the router that will be the Owner
router.
• An IP address(es) associated with the VRID must be on only one router.
• The Hello interval must be set to the same value on both the Owner and Backup(s) for the VRID.
• The Dead interval must be set to the same value on both the Owner and Backup(s) for the VRID.
• The track priority on a router must be lower than the router's VRRP priority. Also, the track priority on the
Owner must be higher than the track priority on the Backup(s).
21 - 12
Table 21.1: VRRP and VRRPE Parameters (Continued)
VRRP – The priority changes to the value of the
tracked port's priority.
VRRPE – The VRID port's priority is reduced by
the amount of the tracked port's priority.
Default See page...
VRRP – 2 21-5
VRRPE – 5 21-17
Enabled 21-18
December 2000