This read-write value, from 0 to 255, assigns a path cost to the switch's second ring port, working alongside superRingRingPort1PathCost to influence which leg of the ring is preferred. An admin raises this value when the second ring leg runs over a slower or longer physical path that should only be used as a backup. For example, setting ring port2's cost higher than ring port1's ensures traffic only shifts to that leg if the lower-cost path actually fails.