Chapter 9: Managing Device Diagnostics; Testing Copper Ports - Cisco 200 Series Administration Manual
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Managing Device Diagnostics
Testing Copper Ports
!
CAUTION
Cisco Small Business 200 Series Smart Switch Administration Guide
This chapter contains information for configuring port mirroring, running cable
tests, and viewing device operational information.
It includes the following topics:
•
Testing Copper Ports
•
Displaying Optical Module Status
•
Configuring Port and VLAN Mirroring
•
Viewing CPU Utilization
The Copper Ports Page displays the results of integrated cable tests performed
on copper cables.
Two types of tests are used:
•
Time Domain Reflectometry (TDR) technology tests the quality and
characteristics of a copper cable attached to a port. Cables of up to 100
meters long can be tested. Cables over 100 meters might not have accurate
results.
•
DSP-based tests are performed on active GE links to measure length.
When a port is tested, it is set to the Down state and communications are
interrupted. After the test, the port returns to the Up state. It is not recommended
that you run the copper port test on a port you are using to run the web-based
switch configuration utility, because communications with that device are
disrupted.
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