Monitoring Network Traffic Using SPAN
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
FC Analyzer usage without SPAN
This type of connection has the following limitations:
Using SPAN you can capture the same traffic scenario shown in
disruption. The Fibre Channel analyzer uses the ingress (Rx) link at port 1 to capture all the frames going
out of the interface fc1/1. It uses the ingress link at port 2 to capture all the ingress traffic on interface
Using SPAN you can monitor ingress traffic on fc1/1 at SD port fc2/2 and egress traffic on SD port fc2/1.
This traffic is seamlessly captured by the FC analyzer as shown in
OL-16184-01, Cisco MDS SAN-OS Release 3.x
Fibre Channel Analyzer Usage Without SPAN
It requires you to physically insert the FC analyzer between the two network devices.
It disrupts traffic when the Fibre Channel analyzer is physically connected.
The analyzer captures data only on the Rx links in both port 1 and port 2. Port 1 captures traffic
exiting interface fc1/1 and port 2 captures ingress traffic into interface fc1/1.
Cisco MDS 9000 Family CLI Configuration Guide
Monitoring Traffic Using Fibre Channel Analyzers
without any traffic