Enabling Loop Monitoring; Verifying Loop Monitoring Configuration; The Show Tech-Support Command - Cisco AP776A - Nexus Converged Network Switch 5020 Configuration Manual

Chapter 58 Troubleshooting Your Fabric
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m

Enabling Loop Monitoring

To enable the loop monitoring feature, follow these steps:
Command
Step 1
switch# config t
switch(config)#
Step 2
switch(config)# fcinterop loop-monitor
switch(config)# no fcinterop loop-monitor

Verifying Loop Monitoring Configuration

Use the show running-config command to verify the loop monitoring configuration.
switch# show running-config | include loop-monitor
fcinterop loop-monitor

The show tech-support Command

The show tech-support command is useful when collecting a large amount of information about your
switch for troubleshooting purposes. The output of this command can be provided to technical support
representatives when reporting a problem.
The show tech-support command displays the output of several show commands at once. The output
from this command varies depending on your configuration. Use the show tech-support command in
EXEC mode to display general information about the switch when reporting a problem.
You can choose to have detailed information for each command or even specify the output for a particular
interface, module, or VSAN. Each command output is separated by line and the command precedes the
output.
Explicitly set the terminal length command to 0 (zero) to disable auto-scrolling and enable manual
Note
scrolling. Use the show terminal command to view the configured the terminal size. After obtaining the
output of this command, remember to reset your terminal length as required (see the
Terminal Screen Length" section on page
You can save the output of this command to a file by appending > (left arrow) and the filename to the
Tip
show tech-support command (see the
save this file, verify you have sufficient space to do so—each of these files may take about 1.8 MB.
However, you can zip this file using the gzip filename command (see the
Uncompressing Files" section on page
command and unzip the file using the gunzip command (see the
The default output of the show tech-support command includes the output of the following commands:
•
•
OL-18084-01, Cisco MDS NX-OS Release 4.x
show version
show environment
Purpose
Enters configuration mode.
Enables the loop polling for FL ports.
Disables (default) the loop monitoring feature and
reverts the switch to the factory defaults.
2-20).
"Saving Command Output to a File" section on page
2-32). Copy the zipped file to the required location using the copy
Cisco MDS 9000 Family CLI Configuration Guide
The show tech-support Command
"Setting the
"Compressing and
"Copying Files" section on page
2-32). If you
2-30).
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