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Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-6965-03, Cisco MDS SAN-OS Release 2.x
Chapter 35 Troubleshooting Your Fabric
Configuring a Fabric Analyzer
Figure 35-1 Cisco Fabric Analyzer Usage

Local Text-Based Capture

This component is a command-line driven text-based interface that captures traffic to and from the
supervisor module in a Cisco MDS 9000 Family switch. It is a fully functional decoder that is useful for
quick debug purposes or for use when the remote capture daemon is not enabled. Additionally, because
this tool is accessed from within the Cisco MDS 9000 Family switch, it is protected by the roles-based
policy that limits access in each switch.

Remote Capture Daemon

This daemon is the server end of the remote capture component. The Ethereal analyzer running on a host
is the client end. They communicate with each other using the Remote Capture Protocol (RPCAP).
RPCAP uses two endpoints, a TCP-based control connection and a TCP or UDP-based data connection
based on TCP (default) or UDP. The control connection is used to remotely control the captures (start or
stop the capture, or specify capture filters). Remote capture can only be performed to explicitly
configured hosts. This technique prevents an unauthorized machine in the network from snooping on the
control traffic in the network.
FC analyzer
GUI output
IP
network
Textual output
IP
network
FC analyzer
RS-232
(Serial console)
Fibre Channel
fabric
10/100 Ethernet
(00B Mgmt)
85482
Remote mode Local mode