Show cable-diagnostics – Brocade 6910 Ethernet Access Switch Configuration Guide (Supporting R2.2.0.0) User Manual
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Brocade 6910 Ethernet Access Switch Configuration Guide
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Interface Commands
•
Short: Shorted pair
•
Not Supported: This message is displayed for any Fast Ethernet ports that are linked up, or
for any Gigabit Ethernet ports linked up at a speed lower than 1000 Mbps.
•
Impedance mismatch: Terminating impedance is not in the reference range.
•
Ports are linked down while running cable diagnostics.
•
To ensure more accurate measurement of the length to a fault, first disable power-saving
mode (using the
no power-save
command) on the link partner before running cable
diagnostics.
Example
Console#test cable-diagnostics interface ethernet 1/10
Console#show cable-diagnostics interface ethernet 1/10
Port Type Link Status Pair A (meters) Pair B (meters) Last Update
-------- ---- ----------- ---------------- ---------------- -------------------
Eth 1/10 GE Up OK (65) OK (67) 2010-10-14 06:50:56
Console#
show cable-diagnostics
This command shows the results of a cable diagnostics test.
Syntax
show cable-diagnostics interface [interface]
interface
ethernet unit/port
unit - Unit identifier. (Range: 1)
port - Port number. (Range: 1-12)
Command Mode
Privileged Exec
Command Usage
•
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.
Example
Console#show cable-diagnostics interface ethernet 1/10
Port Type Link Status Pair A (meters) Pair B (meters) Last Update
-------- ---- ----------- ---------------- ---------------- -----------------
Eth 1/10 GE Up OK (21) OK (21) 2009-11-13 09:44:19
Console#