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Performing loopback testing, Figure 51, Performing – Brocade 6910 Ethernet Access Switch Configuration Guide (Supporting R2.2.0.0) User Manual

Page 778: Loopback testing, Loopback test

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Brocade 6910 Ethernet Access Switch Configuration Guide

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34

Port Configuration

Parameters
These parameters are displayed:

Port – Switch port identifier.

Type – Displays media type. (GE – Gigabit Ethernet, Other – SFP)

Link Status – Shows if the port link is up or down.

Test Result – The results include common cable failures, as well as the status and approximate
distance to a fault, or the approximate cable length if no fault is found.
To ensure more accurate measurement of the length to a fault, first disable power-saving
mode on the link partner before running cable diagnostics.

For link-down ports, the reported distance to a fault is accurate to within +/- 2 meters. For
link-up ports, the accuracy is +/- 10 meters.

Last Updated – Shows the last time this port was tested.

Interface
To test the cable attached to a port:

1. Click Interface, Port, Cable Test.

2. Click Test for any port to start the cable test.

FIGURE 51

Performing Cable Tests

Performing Loopback Testing

Use the Interface > Port > Ethernet Loopback pages to loop traffic back from the destination port
to the source port, display configuration settings and the system resources used by this function.

CLI References

“ethernet loopback”

on page 280

“show ethernet loopback interface”

on page 281

“show ethernet loopback resources”

on page 281