Show Cable-Diagnostics Tdr - Cisco Catalyst 3560X-24P Command Reference Manual

Chapter 2 Catalyst 3750-X and 3560-X 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(53)SE2
Usage Guidelines TDR is supported only on 10/100/100 copper Ethernet ports. It is not supported on 10-Gigabit Ethernet
ports and small form-factor pluggable (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 on
a switch:
Switch# show cable-diagnostics tdr interface gigabitethernet1/0/23
TDR test last run on: March 01 00:04:08
Interface
--------- ----- ---------- ------------------ ----------- --------------------
Gi1/0/23
Table 2-28
Table 2-28
Field
Interface
Speed
Local pair
OL-21522-02
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.
Speed Local pair
1000M 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.
Pair length Remote pair
1 +/- 1 meters Pair A
1 +/- 1 meters Pair B
1 +/- 1 meters Pair C
1 +/- 1 meters Pair D
Catalyst 3750-X and 3560-X Switch Command Reference
show cable-diagnostics tdr
Pair status
Normal
Normal
Normal
Normal
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