Status and Statistics
Diagnostics
Cisco 350XG & 550XG Series 10G Stackable Managed Switches
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Diagnostics
This section contains information for configuring port mirroring, running cable
tests, and viewing device operational information.
It covers the following topics:
•
•
Displaying Optical Module Status
Copper Ports Tests
The Copper Test page
displays the results of integrated cable tests performed on
copper cables by the Virtual Cable Tester (VCT).
VCT performs two types of tests:
•
Time Domain Reflectometry (TDR) technology tests the quality and
characteristics of a copper cable attached to a port. Cables of up to 140
meters long can be tested. These results are displayed in the Test Results
block of the Copper Test page.
•
DSP-based tests are performed on active XG links to measure cable length.
These results are displayed in the Advanced Information block of the
Copper Test page. This test can run only when the link speed is 10G.
Preconditions to Running the Copper Port Test
Before running the test, do the following:
•
(Mandatory) Disable Short Reach mode (see the
page)
•
(Optional) Disable EEE (see the
page)
Use a CAT6a data cable when testing cables using (VCT).
Accuracy of the test results can have an error range of +/- 10 for Advanced Testing
and +/- 2 for basic testing.
CAUTION
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.
