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Displaying Port Status
Token Ring Switch Module User Guide Page 4-3
• RX_Q Overflows - number of incoming packets dropped by the port
due to a lack of buffers. This entry shows status only; it is not
selectable. After a reboot, the ATX tries to automatically re-allocate
the Small Buffers among the ports so that the total number of RX_Q
Overflows is minimized.
• Ring State - either opened, closed, or ring failure. This entry shows
status only; it is not selectable.
• Ring Status - normally No Problems Detected. This entry shows status
only; it is not selectable. If there are ring problems, one of the
following will be displayed:
- Ring Recovery - This could be a normal state, indicating that a
new station has just inserted into the ring and temporarily broken
it. The ring should be back to normal in seconds. If it is not, check
for stuck relays on a passive MAU, DB9 connectors plugged into
the video port, mismatched ring speed (some stations at 4, some at
16), or poor wiring or connections.
- Single Station - The module’s Token Ring port is the only station
it sees on the ring.
- Auto Removal - There is a serious problem with the connection,
which resulted in the Token Ring port removing itself from the
ring. Check the conditions listed under Ring Recovery.
- Lobe Wire Fault - The cable between the ATX and the MAU is
defective causing the loopback test to fail. Therefore, the Token
Ring port isn’t inserted into the ring.
- Soft Error - Historically indicates that an error has occurred. This
can be caused by inserting a new station into the ring. Since this
value represents a historical set, it may not necessarily indicate a
current error condition.
- Hard Error - This frequently occurs when a new station is inserted
into the ring; it can be ignored.
- Transmitting Beaconing - As state similar to Ring Recovery.
Follow the guidelines above.
- Signal Loss - The Token Ring port is unable to communicate with
the ring.