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    Setting a Priority to Determine the Designated Router for IPv6

    You can influence whether a particular router is selected as the designated router with the ipv6 pim dr-priority command. A higher priority value increases the likelihood that a router is selected as the designated router, while a lower value decreases the likelihood. The ipv6 pim dr-priority command in Router Configuration mode sets the designated router priority on all the PIM interfaces on the router. To override this global setting on a particular interface, use the ipv6 pim dr-priority command in Interface Configuration mode.

    Note: You cannot configure the designated router priority on PIM DM interfaces.

    • To set a priority value, in the range 1–254, by which a router is likely to be selected as the designated router, issue the ip pim dr-priority command.

      In Router Configuration mode:

      host1(config-router)#ipv6 pim dr-priority 24

      The no version restores the default value. The default value is 1.

      In Interface Configuration mode:

      host1(config-subif)#ipv6 pim dr-priority 24

      The no version restores the value that is specified in Router Configuration mode.

    Published: 2014-08-19