Dell Force10 S25-01-GE-24V FTOS 8.4.2.7 Command Line Reference Guide for E-Ser - Page 626

www.dell.com | support.dell.com TDR is useful for troubleshooting an interface that is not establishing a link; either it is flapping or not coming up at all. TDR detects open or short conditions of copper cables on 100/1000 Base-T modules. • tdr-cable-test • show tdr Important Points to Remember • The interface and port must be enabled (configured-see 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 interface Enter the keyword GigabitEthernet followed by the slot/port information for the 100/1000 Ethernet interface. Defaults No default behavior or setting Command Modes EXEC Command History Version 8.2.1.0 Version 7.7.1.0 Version 7.6.1.0 Version 6.1.1.0 Introduced on E-Series ExaScale Introduced on S-Series Introduced on C-Series Introduced on E-Series Usage Information The interface must be enabled to run the test or an error message is generated: FTOS#tdr-cable-test gigabitethernet 5/2 %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 show tdr Display the results of the TDR test. 626 | Interfaces