PHY Diagnostics Commands 1441
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PHY Diagnostics Commands
This chapter explains the following commands:

show copper-ports tdr

Use the show copper-ports tdr command in Privileged EXEC mode to display
the stored information regarding cable lengths.
Syntax
show copper-ports tdr [
interface
]
•
interface
— A valid Ethernet port. The full syntax is

unit / port.

Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode
User Guidelines
The copper-related commands do not apply to the stacking, CX-4, or
10GBaseT ports associated with these plug -in modules.
The maximum length of the cable for the Time Domain Reflectometry
(TDR) test is 120 meters. Disable green-mode on the port in order to obtain
accurate results.
show copper-ports tdr test copper-port tdr
show fiber-ports optical-transceiver
2CSPC4.XCT-SWUM2XX1.book Page 1441 Monday, October 3, 2011 11:05 AM