Show Cable-Diagnostics Tdr - Cisco Catalyst 2960 Command Reference Manual

Chapter 2 Catalyst 2960 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.
Syntax Description interface-id
| begin
| exclude
| include
expression
Command Modes
Privileged EXEC
Command History Release
12.2(25)FX
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
--------- ----- ---------- ------------------ ----------- --------------------
Gi0/2
Table 2-17
Table 2-17
Field
Interface
Speed
Local pair
OL-8604-04
show cable-diagnostics tdr interface 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.
Modification
This command was introduced.
auto Pair A
Pair B
Pair C
Pair D
lists the descriptions of the fields in the show cable-diagnostics tdr command output.
Fields Descriptions for the show cable-diagnostics tdr Command Output
Description
Interface on which TDR was run.
Speed of connection.
Name of the pair of wires that TDR is testing on the local interface.
Remote pair Pair status
0 +/- 2 meters N/A
0 +/- 2 meters N/A
0 +/- 2 meters N/A
0 +/- 2 meters N/A
show cable-diagnostics tdr
Open
Open
Open
Open
Catalyst 2960 Switch Command Reference
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