User manual

C HAPTER 5 | Interface Configuration
Port Configuration
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ES-2000 Series
To show a chart of port statistics:
1. Click Interface, Port, Chart.
2. Select the statistics mode to display (Interface, Etherlike, RMON or All).
3. If Interface, Etherlike, RMON statistics mode is chosen, select a port
from the drop-down list. If All (ports) statistics mode is chosen, select
the statistics type to display.
Figure 26: Showing Port Statistics (Chart)
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
◆ Cable diagnostics are performed using Time Domain Reflectometry
(TDR) test methods. TDR analyses the cable by sending a pulsed signal
into the cable, and then examining the reflection of that pulse.
◆ This cable test is only accurate for Fast Ethernet cables 50-140 meters
long, and Gigabit Ethernet cables 0 - 250 meters long.
◆ 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.