Platform Notes: SunFDDI Adapter

ECM shows the current state of the Entity Coordination Management state machine, which controls the following features and facilities:

Table 2-1 lists the states that may be returned by pf_stat under the ECM heading.

Table 2-1 pf_stat States Under the ECM Heading


State	Meaning
`OUT`	ECM is inactive and is waiting for a connect request (initial state).
`IN`	ECM is active; normal state after successful connection request.
TRACE	ECM is propagating a trace request to the appropriate entity.
LEAVE	ECM is closing all connections prior to the station leaving the ring.
PATH_TEST	ECM is entering a path test state following trace completion.
INSERT	ECM is sending a request to the optical bypass switch to indicate that the station is entering the ring. This disengages the switch.
CHECK	ECM is verifying that symbols are being received from the network.
DEINSERT	ECM is sending a request to the optical bypass switch, to indicate that the station is leaving the ring. This engages the switch.