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Catalyst 3750 Switch Command Reference
OL-8552-07
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 10/100/100 copper Ethernet ports. It is not supported on 10/100 ports,
10-Gigabit module ports, or 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 on
a switch other than a Catalyst 3750G-24PS or 3750G-48PS switch:
Switch#
show cable-diagnostics tdr interface gigabitethernet1/0/2
TDR test last run on: March 01 20:15:40
Interface Speed Local pair Pair length Remote pair Pair status
--------- ----- ---------- ------------------ ----------- --------------------
Gi1/0/2 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
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
12.1(19)EA1
This command was introduced.
