Configuring VRRP Instances to Match ICR Requirements

Each ICR partition is managed by a unique VRRP instance. You can specify an ICR partition as the master partition by assigning a higher priority. Use the ip vrrp priority command to assign priorities to the ICR partitions.

To configure the VRRP instance to match ICR requirements:

  1. Create a VRRP instance by specifying the identification number, and associate an IP address with the identification number.
    host1(config-if)#ip vrrp 1 virtual-address
  2. Specify the priority of the router. Assign the higher priority to the master ICR partition and a lower priority to the backup ICR partition.
    host1(config-if)#ip vrrp priority 200
  3. (Optional) Enable the router to learn the VRRP advertisement interval. Use this only when you plan on upgrading your router by means of a unified in-service software upgrade (ISSU).
    host1(config-if)#ip vrrp 1 timers-learn
  4. Enable the VRRP instance.
    host1(config-if)#ip vrrp 1 enable
  5. (Optional) Configure additional VRRP instances by completing Steps 1 through 4, using unique numbering.

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