Cisco CATALYST 2960 Command Reference Guide

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Catalyst 2960 Switch Command Reference
OL-8604-03
Chapter 2 Catalyst 3750 Switch Cisco IOS Commands
show cable-diagnostics tdr
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
Command Modes Privileged EXEC
Command History
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 gigabitethernet0/2
TDR test last run on: March 01 20:15:40
Interface Speed Local pair Pair length Remote pair Pair status
--------- ----- ---------- ------------------ ----------- --------------------
Gi0/2 auto Pair A 0 +/- 2 meters N/A Open
Pair B 0 +/- 2 meters N/A Open
Pair C 0 +/- 2 meters N/A Open
Pair D 0 +/- 2 meters N/A Open
Table 2-17 lists the descriptions of the fields in the show cable-diagnostics tdr command output.
interface-id Specify the interface on which TDR was run.
| begin (Optional) Display begins with the line that matches the expression.
| exclude (Optional) Display excludes lines that match the expression.
| include (Optional) Display includes lines that match the specified expression.
expression Expression in the output to use as a reference point.
Release Modification
12.2(25)FX This command was introduced.
Table 2-17 Fields Descriptions for the show cable-diagnostics tdr Command Output
Field Description
Interface Interface on which TDR was run.
Speed Speed of connection.
Local pair Name of the pair of wires that TDR is testing on the local interface.

Cisco CATALYST 2960 Specifications

General

Manageable	Yes
Stacking	No
Model	Catalyst 2960 Series Switches
Power over Ethernet (PoE)	Available on some models (IEEE 802.3af)
VLANs	255 active VLANs
Features	QoS
Operating Temperature	32 to 113°F (0 to 45°C)
Relative Humidity	10% to 85% non-condensing
Power Consumption	Varies by model (30W to 400W)