Network Card User's Manual

Configuration 4-3
FDDI Management
MAC State
This field indicates the current state of the selected module’s MAC component.
(The RMT component of SMT monitors MAC operation and takes actions
necessary to aid in achieving an operational ring.) Possible states are:
Not Available There is no MAC on the FDDI ring associated with the
SMT entity, or the selected SMT entity is not attached to
the main ring through the backplane FNB A and B ports.
Ring-Op The ring is functioning normally. While in this state, the
MAC being managed is part of an operational FDDI ring.
Isolated SMT has just initialized RMT or RMT has entered this
state during a path test (trace) after ring beaconing; RMT
is not aware of the ring path or state.
Non-Op The MAC being managed by the selected SMT is
participating in ring recovery; the ring is not operational.
Detect The claim (beacon) process of the FDDI ring protocol has
exceeded one second. There may be a problem on the
ring; any duplicate address conditions are being
detected. In this state, the ring is still alive, but no data is
being transmitted.
Non-Op-Dup The ring is not operational; the address of the MAC
under control of the SMT entity has been found to
duplicate that of another MAC on the ring. The duplicate
address condition prevented ring recovery and
initialization after a claim and beacon process. This state
will not occur unless you are using locally-administered
addresses, as factory-set MAC addresses are guaranteed
to be unique.
Ring-Op-Dup The ring is operational; however, the address of the MAC
under control of the SMT entity has been found to
duplicate that of another MAC on the ring. Corrective
actions will be attempted before the duplicate address
condition causes ring initialization to fail after the claim
and beacon recovery process. Like Non-Op-Dup, this
state will not occur unless you are using
locally-administered addresses.
Directed The beacon process did not complete within 7 seconds.
The selected SMT has directed the controlled MAC to
send beacon frames to notify the other stations that a
serious problem exists on the ring, and a Trace state is
soon to follow.
Trace A problem exists on the ring which could not be
corrected during the beaconing process, and a Trace has
been initiated. During a Trace (or Path Test), the SMT
sends a signal that forces its nearest upstream neighbor