Troubleshooting network connections

3

The output from this command appears below.

PowerConnect# show cable-diag tdr 1/1/1

Remote pair

Pair status

Port

Speed Local pair

Pair Length

---------

----- ----------

-----------

-----------

-----------

1/1/1

1000M Pair A

<50M

Pair B

Terminated

 

Pair B

<50M

Pair A

Terminated

 

Pair C

<50M

Pair D

Terminated

 

Pair D

<50M

Pair C

Terminated

Syntax: show cable-diag tdr <port-num>

Table 20 defines the fields shown in this output.

TABLE 20

Cable statistics

 

 

This Line...

Displays...

 

 

Port

The port that was tested.

 

 

Speed

The current line speed of the port.

 

 

Local pair

The local link name.

 

 

Pair Length

The cable length when terminated, or the distance to the point of fault when the line

 

is not up.

 

 

Remote pair

The remote link name.

 

 

Pair status

The status of the link. This field displays one of the following:

 

Terminated: The link is up.

 

Shorted: A short is detected in the cable.

 

Open: An opening is detected in the cable.

 

ImpedMis: The impedance is mismatched.

 

Failed: The TDR test failed.

 

 

Digital optical monitoring

You can configure your device to monitor optical transceivers in the system, either globally or by specified port. When this feature is enabled, the system monitors the temperature and signal power levels for the optical transceivers in the specified ports. Console messages and syslog messages are sent when optical operating conditions fall below or rise above the XFP, SFP, and SFP+ manufacturer’s recommended thresholds. For more information about digital optical monitoring, refer to PowerConnect B-FCX Series Configuration Guide.

PowerConnect B-FCX Switch Hardware Installation Guide

47

53-1002267-01

 

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Dell B-FCX manual Digital optical monitoring, Syntax show cable-diag tdr port-num, This Line Displays