Cisco IE-3000-8TC Command Reference - Page 612

test cable-diagnostics tdr Chapter 2 IE 3000 Switch Cisco IOS Commands test cable-diagnostics tdr Use the test cable-diagnostics tdr privileged EXEC command to run the Time Domain Reflector (TDR) feature on an interface. test cable-diagnostics tdr interface interface-id Syntax Description interface-id Specify the interface on which to run TDR. Defaults There is no default. Command Modes Privileged EXEC Command History Release 12.2(44)EX Modification This command was introduced. Usage Guidelines TDR is supported only on 10/100 and 10/100/1000 copper Ethernet ports. It is not supported on SFP module ports. For more information about TDR, see the software configuration guide for this release. After you run TDR by using the test cable-diagnostics tdr interface interface-id command, use the show cable-diagnostics tdr interface interface-id privileged EXEC command to display the results. Examples This example shows how to run TDR on an interface: Switch# test cable-diagnostics tdr interface gigabitethernet1/2 TDR test started on interface Gi1/2 A TDR test can take a few seconds to run on an interface Use 'show cable-diagnostics tdr' to read the TDR results. If you enter the test cable-diagnostics tdr interface interface-id command on an interface that has a link status of up and a speed of 10 or 100 Mb/s, these messages appear: Switch# test cable-diagnostics tdr interface gigabitethernet1/1 TDR test on Gi1/2 will affect link state and traffic TDR test started on interface Gi1/1 A TDR test can take a few seconds to run on an interface Use 'show cable-diagnostics tdr' to read the TDR results. Related Commands Command show cable-diagnostics tdr Description Displays the TDR results. 2-586 Cisco IE 3000 Switch Command Reference OL-13019-01