Cisco Catalyst 3650 Series User Manual

show cable-diagnostics tdr
To display the Time Domain Reflector (TDR) results, use the show cable-diagnostics tdr command in
privileged EXEC mode.
show cable-diagnostics tdr interface interface-id
Syntax Description
Specifies the interface on which TDR is run.
interface-id
Command Default
No default behavior or values.
Command Modes
Privileged EXEC
Command History
ModificationRelease
This command was introduced.Cisco IOS XE 3.3SECisco IOS XE 3.3SE
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.
Examples
This example shows the output from the show cable-diagnostics tdr interface interface-id command on a
device:
Device# show cable-diagnostics tdr interface gigabitethernet1/0/23
TDR test last run on: March 01 00:04:08
Interface Speed Local pair Pair length Remote pair Pair status
--------- ----- ---------- ------------------ ----------- --------------------
Gi1/0/23 1000M Pair A 1 +/- 1 meters Pair A Normal
Pair B 1 +/- 1 meters Pair B Normal
Pair C 1 +/- 1 meters Pair C Normal
Pair D 1 +/- 1 meters Pair D Normal
Table 48: Field Descriptions for the show cable-diagnostics tdr Command Output
DescriptionField
The interface on which TDR is run.Interface
The speed of connection.Speed
The name of the pair of wires that TDR is testing on
the local interface.
Local pair
Command Reference, Cisco IOS XE Everest 16.5.1a (Catalyst 3650 Switches)
944
show cable-diagnostics tdr

Cisco Catalyst 3650 Series Specifications

General

Brand	Cisco
Model	Catalyst 3650 Series
Category	Switch
Language	English