40 Brocade FastIron WS Hardware Installation Guide
53-1002188-01
Troubleshooting network connections
3
DRAFT: BROCADE CONFIDENTIAL
Viewing the results of the cable analysis
To display the results of the cable analysis, enter a command such as the following at the Privileged
EXEC level of the CLI.
Syntax: show cable-diag tdr <port-num>
Table 13 defines the fields shown in the command output.
Digital Optical Monitoring
You can configure your FWS 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 SFP
manufacturer’s recommended thresholds. For more information about digital optical monitoring,
refer to the FastIron Configuration Guide
TABLE 13 Cable statistics
This line... Displays...
Port The port that was tested.
Speed The port’s current line speed.
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.
FWSSwitch#show cable-diag tdr 0/1/1
Port Speed Local pair Pair Length Remote pair Pair status
--------- ----- ---------- ----------- ----------- -----------
0/1/1 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
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