Command Line Reference Guide

Usage
Information
If the TDR test has not been run, an error message is generated:
%Error: Please run the TDR test first
The following describes the TDR test status.
Status Definition
OK Status:
Terminated
TDR test is complete, no fault is detected on the cable, and
the test is terminated.
Length: 92 (+/- 1)
meters, Status:
Shorted
A short is detected on the cable. The location, in this
Example is 92 meters. The short is accurate to plus or minus
one meter.
Length: 93 (+/- 1)
meters, Status:
Open
An opening is detected on the cable. The location, in this
Example is 93 meters. The open is accurate to plus or minus
one meter.
Status:
Impedance
Mismatch
There is an impedance mismatch in the cables.
Example
Dell#show tdr tengigabitethernet 1/1
Time since last test: 00:00:02
Pair A, Length: OK Status: Terminated
Pair B, Length: 92 (+/- 1) meters, Status: Short
Pair C, Length: 93 (+/- 1) meters, Status: Open
Pair D, Length: 0 (+/- 1) meters, Status: Impedance Mismatch
Related
Commands
vlan tagged— Runs the TDR test.
show vlan
Displays the current VLAN configurations on the switch.
Syntax
show vlan [brief |id vlan-id | name vlan-name]
Parameters
brief (OPTIONAL) Enter the keyword brief to display the
following information:
• VLAN ID
• VLAN name (left blank if none is configured.)
• Spanning Tree Group ID
• MAC address aging time
• IP address
id vlan-id (OPTIONAL) Enter the keyword id followed by a number
from 1 to 4094. Only information on the VLAN specified is
displayed
176
Interfaces