PHY Diagnostics Commands
275
PHY Diagnostics Commands
test copper-port tdr
The
test copper-port tdr
Privileged EXEC mode command diagnoses with TDR (Time Domain
Reflectometry) technology the quality and characteristics of a copper cable attached to a port.
Syntax
•
test copper-port tdr
interface
•
interface
— A valid Ethernet port.
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
•
The port under test should be conducted when the fiber link is down.
NOTE:
The maximum distance VCT can function is 120 meters.
Examples
The following example results in a report on the cable attached to port g3.
show copper-ports tdr
The
show copper-ports tdr
Privileged EXEC mode command display the last TDR (Time Domain
Reflectometry) tests on specified ports.
Syntax
•
show copper-ports tdr
[
interface
]
•
interface
— A valid Ethernet port.
Console#
test copper-port tdr
g3
Cable is open at 100 meters
5400_CLI.book Page 275 Wednesday, December 17, 2008 4:33 PM
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