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Running the Diagnostics Program 5-15
47 Ring Poll, Ring Beaconing: The PC Card has either
detected a monitor contention (claim token) failure
or received a beacon MAC frame from the ring.
1 and 2b
4A Ring Poll, Remove Received: The PC Card has
received a remove ring station MAC frame,
indicating that a network management function has
directed this PC Card to get off the ring.
2a and 4
55 Request Parameters, Time Out: The insertion timer
expired before this function was completed,
indicating that the ring can be congested,
experiencing a high bit-error rate, or losing an
abnormally high number of tokens or frames. This
prevents successful transmission of the request
parameter MAC frame or reception of either the set
parameter 1 or set parameter 2 MAC frame
(required response to the PC Card’s request).
1 and 2a
56 Request Parameters, Ring Failure: The PC Card,
acting as an active monitor, was unable to complete
the ring purge function successfully. This indicates
that an error condition has occurred since the
successful completion of monitor contention (when
this PC Card became the active monitor).
1 and 2a
57 Request Parameters, Ring Beaconing: The PC Card
has received a beacon MAC frame from the ring.
1 and 2b
59 Request Parameters, Parameter Request - Retry
Count Exceeded: The PC Card has detected that the
ring parameter server is present on the ring but that
the required response (set parameter 1 or set
parameter 2 MAC frame) was not received in the
allotted time. This indicates that the ring can be
congested, experiencing a high bit-error rate, or
losing an abnormally high number of tokens or
frames.
1 and 2a
5A Request Parameters, Remove Received: The PC Card
has received a remove ring station MAC frame,
indicating that a network management function has
directed this PC Card to get off the ring.
2a and 4
Table 5-5 Actions for Open Errors (continued)
Error Code Explanation Action