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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
show cable-diagnostics tdr
show cable-diagnostics tdr
To display the test results for the TDR cable diagnostics, use the show cable-diagnostics tdr command.
show cable-diagnostics tdr {interface {interface interface-number}}
Note This command will be deprecated in future Cisco IOS releases; use the diagnostic start command
instead.
Syntax Description
Defaults This command has no default settings.
Command Modes Privileged EXEC mode
Command History
Usage Guidelines The TDR test is supported on Catalyst 4500 Series Switches running Cisco IOS Release 12.2(25)SG for
the following line cards only:
• WS-X4548-GB-RJ45
• WS-X4548-GB-RJ45V
• WS-X4524-GB-RJ45V
• WS-X4013+TS
• WS-C4948
• WS-C4948-10GE
The distance to the fault is displayed in meters (m).
Examples This example shows how to display information about the TDR test:
Switch# show cable-diagnostics tdr interface gi4/13
Interface Speed Local pair Cable length Remote channel Status
Gi4/13 0Mbps 1-2 102 +-2m Unknown Fault
3-6 100 +-2m Unknown Fault
4-5 102 +-2m Unknown Fault
7-8 102 +-2m Unknown Fault
Switch#
interface interface Interface type; valid values are fastethernet and gigabitethernet.
interface-number Module and port number.
Release Modification
12.2(25)SG Support for this command was introduced on the Catalyst 4500 series switch.