Chapter 4
| Interface Configuration
Port Configuration
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Web Interface
To configure threshold values for optical transceivers:
1. Click Interface, Port, Transceiver.
2. Select a port from the scroll-down list.
3. Set the switch to send a trap based on default or manual settings.
4. Set alarm and warning thresholds if manual configuration is used.
5. Click Apply.
Figure 45: Configuring Transceiver Thresholds
Performing Cable
Diagnostics
Use the Interface > Port > Cable Test page to test the cable attached to a port. The
cable test will check for any cable faults (short, open, etc.). If a fault is found, the
switch reports the length to the fault. Otherwise, it reports the cable length. It can
be used to determine the quality of the cable, connectors, and terminations.
Problems such as opens, shorts, and cable impedance mismatch can be diagnosed
with this test.
Command Usage
â—† Cable diagnostics are performed using Digital Signal Processing (DSP) test
methods. DSP analyses the cable by sending a pulsed signal into the cable, and
then examining the reflection of that pulse.
â—† Cable diagnostics can only be performed on twisted-pair media.
â—† This cable test is only accurate for cables 7 - 100 meters long.
â—† The test takes approximately 5 seconds. The switch displays the results of the
test immediately upon completion, including common cable failures, as well as
the status and approximate length to a fault.
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