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Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-17256-03, Cisco MDS NX-OS Release 4.x
Chapter 66 Troubleshooting Your Fabric
Configuring a Fabric Analyzer
Using capture filters, you can limit the amount of traffic that is actually sent to the client. Capture filters
are specified at the client end—on Ethereal, not on the switch.
GUI-Based Client
The Ethereal software runs on a host, such as a PC or workstation, and communicates with the remote
capture daemon. This software is available in the public domain from
http://www.ethereal.com. The
Ethereal GUI front-end supports a rich interface such as a colorized display, graphical assists in defining
filters, and specific frame searches. These features are documented on Ethereal’s website.
While remote capture through Ethereal supports capturing and decoding Fibre Channel frames from a
Cisco MDS 9000 Family switch, the host running Ethereal does not require a Fibre Channel connection
to the switch. The remote capture daemon running on the switch sends the captured frames over the
out-of-band Ethernet management port. This capability allows you to capture and decode Fibre Channel
frames from your desktop or laptop.
Configuring the Cisco Fabric Analyzer
You can configure the Cisco Fabric Analyzer to perform one of two captures.
• Local capture—A local capture cannot be saved to persistent storage or synchronized to standby.
Launches the textual version on the fabric analyzer directly on the console screen. The capture can
also be saved on the local file system.
• Remote capture—A remote capture can be saved to persistent storage. It can be synchronized to the
standby supervisor module and a stateless restart can be issued, if required.
To use the Cisco Fabric Analyzer feature, traffic should be flowing to or from the supervisor module.
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