IBM 8239 Token-Ring Stackable Hub, Руководство по установке и эксплуатации

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Table 5-5. Port Status (Yellow LED)
State Meaning
On Port is wrapped due to wrong speed or beacon error. Use DISPLAY PORT to obtain the port
status.
Cause Action
Cabling problem when port status is BEACON WRAPPED
Make sure that all cable connections are secure. Check the
cable for breaks or other damage. Replace suspect cables with
cables that are known to be good. Make sure the cable length
and specifications comply with the requirements in “Cable Types
and Distances” on page 1-4.
Workstation failure when port status is BEACON WRAPPED
Make sure the workstation is installed and operating correctly.
Workstation entered at the wrong speed when port status is SPEED MISMATCH
Make sure the workstation is configured for the same ring speed
as the 8239. Ring speed can be 4 or 16 Mbps. Ring speed
LEDs on the front panel indicate the ring speed. Use DISPLAY
PORT for more information.
Off Port does not have a fault.
Blinking The port is administratively disabled due to security violation or threshold exceeded. Use
DISPLAY PORT to obtain the port status.
Cause Action
A MAC address that is not in the port’s security table was inserted at that port when port status
was SECURITY BREACH
If it is OK for that workstation to be inserted at
that port, add the workstation’s MAC address
to the port’s security table (using SET
SECURITY_PORT MAC_ADDRESS) or
disable port security (using DISABLE
SECURITY_PORT).
A workstation has exceeded threshold for entering at the wrong speed when port status is
THRES ERROR SPEED
Make sure the workstation is configured for
the same ring speed as the 8239. Ring speed
can be 4 or 16 Mbps. Ring speed LEDs on
the front panel indicate the ring speed. Use
DISPLAY PORT for more information.
The port has exceeded the threshold for beacon faults when port status is BCN THRES
ERROR
Beaconing is typically due to a faulty
workstation or cable. Use DISPLAY PORT for
more information. Resolve the fault.
A port that is administratively disabled remains in that state until the command is
issued to enable or disable the port. The administratively disabled state takes
precedence over any other state. For example, if a port is administratively disabled
due to a beacon threshold being exceeded and the cable is removed from the port,
Chapter 5. Problem Determination Procedures
5-5