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Chapter 49
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 .
Displaying Configured Hosts
Use the show fcanalyzer command to display the list of hosts configured for a remote capture. See
Example
Example 49-1 Displays Configured Hosts
switch# show fcanalyzer
PassiveClient = 10.21.0.3
PassiveClient = 10.21.0.3
ActiveClient = 10.21.0.3, DEFAULT
Note
The DEFAULT in the ActiveClient line indicates that the default port is used.
Displaying Captured Frames
You can selectively view captured frames by using the display filters feature. For example, instead of
viewing all the frames from a capture, you may only want to view Exchange Link Protocol (ELP) request
frames. This feature only limits the captured view—it does not affect the captured or the saved frames.
Procedures to specify, use, and save display filters are already documented in the Ethereal website
(http://www.ethereal.com). Some examples of how you can use this feature are as follows:
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OL-6973-03, Cisco MDS SAN-OS Release 2.x
49-1.
To view all packets in a specified VSAN, use this expression:
mdshdr.vsan == 2
To view all SW_ILS frames, use this expression:
fcswils
To view class F frames, use this expression:
mdshdr.sof == SOFf
To view all FSPF frames, use this expression:
swils.opcode == HLO || swils.opcode == LSU || swils.opcode == LSA
To view all FLOGI frames, use this expression:
fcels.opcode == FLOGI
To view all FLOGI frames in VSAN 1, use this expression:
fcels.opcode == FLOGI && mdshdr.vsan == 2
To view all name server frames, use this expression:
dNS
Configuring a Fabric Analyzer
Cisco MDS 9000 Family Configuration Guide
49-9
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