254 Monitoring and Logging System Information
Integrated Cable Test for Copper Cables
Use the Integrated Cable Test for Copper Cables page to perform tests on
copper cables. Cable testing provides information about where errors
occurred in the cable, the last time a cable test was performed, and the type of
cable error which occurred. The tests use Time Domain Reflectometry
(TDR) technology to test the quality and characteristics of a copper cable
attached to a port. Cables up to 120 meters long can be tested. Cables are
tested when the ports are in the down state, with the exception of the
Approximated Cable Length test. SFP, SFP+, and QSFP cables with passive
copper assemblies are not capable of performing TDR tests.
To display the Integrated Cable Test for Copper Cables page, click System
→
Diagnostics
→
Integrated Cable Test in the navigation panel.
Figure 11-6. Integrated Cable Test for Copper Cables
NOTE: Cable diagnostics may give misleading results if any green Ethernet
modes are enabled on the port. Disable EEE or energy-detect mode prior to
running any cable diagnostics.
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