This read-write setting marks a port as an edge port-one connected directly to an end station rather than another bridge-which lets it skip STP's listening and learning states and move straight to forwarding, since such ports cannot themselves create a bridging loop. An admin sets this true on access ports feeding servers or workstations to eliminate unnecessary startup delay. For example, setting true(1) on the port connected to a file server lets that server reach the network the instant the cable is plugged in, instead of waiting through STP's normal state transitions.