Reference Guide

Interfaces | 671
• tdr-cable-test
• show tdr
Important Points to Remember
• The interface and port must be enabled (configured— the interface command)
before running TDR. An error message is generated if you have not enabled the
interface.
• The interface on the far-end device must be shut down before running TDR.
• Since TDR is an intrusive test on an interface that is not establishing a link, do
not run TDR on an interface that is passing traffic.
• When testing between two devices, do not run the test on both ends of the cable.
tdr-cable-test
c e s
Test the condition of copper cables on 100/1000 Base-T modules.
Syntax tdr-cable-test interface
Parameters
Defaults
No default behavior or setting
Command Modes
EXEC
Command
History
Usage
Information
The interface must be enabled to run the test or an error message is generated:
Message 1 FTOS#tdr-cable-test gigabitethernet 5/2
Message 2 %Error: Interface is disabled GI 5/2
The C-Series and S-Series do not generate log messages is generated when the link flaps
down/up during TDR tests. The E-series, does produce these log messages.
Related
Commands
interface
Enter the keyword GigabitEthernet followed by the slot/port
information for the 100/1000 Ethernet interface.
Version 8.3.19.0 Introduced on S4820T
Version 8.3.7.0 Introduced on S4810
Version 8.2.1.0 Introduced on E-Series ExaScale
Version 7.7.1.0 Introduced on S-Series
Version 7.6.1.0 Introduced on C-Series
Version 6.1.1.0 Introduced on E-Series
show tdr Display the results of the TDR test.