3Com 3C389 User Manual

Page 61

5-14

HAPTER

5: T

ROUBLESHOOTING

Address Verification, 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 (claim
token), when this PC Card became the active
monitor.

1 and 2a

Address Verification, Ring Beaconing: The PC Card
has either detected a monitor greaster than or equal
to contention (claim token) failure or received a
beacon greater than or equal to MAC frame from
the ring.

1 and 2b

Address Verification, Duplicate Node Address: The PC
Card has detected that another station on the ring
has a PC Card address that is the same as the PC
card address being tested.

Address Verification, Remove Received: The PC Card
has received a remove ring station MAC frame,
indicating that a network management function has
directed this specific address to get off the ring.

2a and 4

Ring Poll, Signal Loss: The PC Card has detected a
250-ms signal loss (receiver cannot recognize signal)
indicating that an error condition has occurred since
the PC Card successfully completed the ring signal
recognition phase of the open operation.

1 and 2a

Ring Poll, 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 the PC Card’s
successful reception of either the ring poll request
or response MAC frame, or transmission of the
required ring poll response MAC frame.

1 and 2a

Ring Poll, 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 (claim token),
when this PC Card became the active monitor.

1 and 2a

(continued)

Table 5-5 Actions for Open Errors (continued)

Error Code

Explanation

Action