Determines the priority of the interface for being elected as a Designated IS.
The default is 64.
Interface subtype configuration mode
IS-IS is supported only on devices based on the DNX chipset family. For a list of such devices, see "Supported Hardware".
You can configure the same priority for both Level-1 and Level-2 or you can configure a different priority for each level. If two or more devices have the highest priority within a given level, the device with the highest MAC address becomes the Designated IS for that level.
You can set the IS-IS priority on an individual interface basis only. You cannot set the priority globally.
The no form of the command resets the priority value to the default value of 64.
The following example changes the priority for Level 1 packets for an Ethernet interface.
device# configure terminal device(config)# interface ethernet 1/1 device(conf-if-eth-1/1)# isis priority level-1 100
The following example changes the hello multiplier for Level 2 packets for a loopback interface.
device# configure terminal device(config)# interface loopback 1 device(config-Loopback-1)# isis priority level-2 80