Determines the priority of the interface for being elected as a designated IS.
<interface xmlns="urn:brocade.com:mgmt:brocade-interface"> <ethernet> <name>{req_val}</name> <interface-eth-isis-conf xmlns="urn:brocade.com:mgmt:brocade-isis"> <intf-isis> <interface-isis> <interface-priority/> </interface-isis> </intf-isis> </interface-eth-isis-conf> </ethernet> </interface>