Cisco IE-3000-8TC Command Reference - Page 344

show cable-diagnostics tdr Chapter 2 IE 3000 Switch Cisco IOS Commands show cable-diagnostics tdr Use the show cable-diagnostics tdr privileged EXEC command to display the Time Domain Reflector (TDR) results. show cable-diagnostics tdr interface interface-id [ | {begin | exclude | include} expression] Syntax Description interface-id | begin | exclude | include expression Specify the interface on which TDR was run. (Optional) Display begins with the line that matches the expression. (Optional) Display excludes lines that match the expression. (Optional) Display includes lines that match the specified expression. Expression in the output to use as a reference point. Command Modes Privileged EXEC Command History Release 12.2(44)EX Modification This command was introduced. Usage Guidelines TDR is supported only on 10/100 and 10/100/1000 copper Ethernet ports. It is not supported on SFP module ports. For more information about TDR, see the software configuration guide for this release. Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear. Examples This is an example of output from the show cable-diagnostics tdr interface interface-id command: Switch# show cable-diagnostics tdr interface gigabitethernet1/2 TDR test last run on: March 01 20:15:40 Interface Speed Local pair Pair length Remote pair Pair status Gi1/2 auto Pair A 0 +/- 2 meters N/A Open Pair B Pair C Pair D 0 +/- 2 meters N/A 0 +/- 2 meters N/A 0 +/- 2 meters N/A Open Open Open Table 2-18 lists the descriptions of the fields in the show cable-diagnostics tdr command output. Table 2-18 Fields Descriptions for the show cable-diagnostics tdr Command Output Field Interface Speed Local pair Description Interface on which TDR was run. Speed of connection. Name of the pair of wires that TDR is testing on the local interface. 2-318 Cisco IE 3000 Switch Command Reference OL-13019-01