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60-12
Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-17256-03, Cisco MDS NX-OS Release 4.x
Chapter 60 Monitoring Network Traffic Using SPAN
Monitoring Traffic Using Fibre Channel Analyzers
Figure 60-9 Fibre Channel Analyzer Using SPAN
Configuring Fibre Channel Analyzers Using SPAN
To configure Fibre Channel Analyzers using SPAN for the example in Figure 60-9, follow these steps:
Step 1 Configure SPAN on interface fc1/1 in the ingress (Rx) direction to send traffic on SD port fc2/1 using
session 1.
Step 2 Configure SPAN on interface fc1/1in the egress (Tx) direction to send traffic on SD port fc2/2 using
session 2.
Step 3 Physically connect fc2/1 to port 1 on the Fibre Channel analyzer.
Step 4 Physically connect fc2/2 to port 2 on the Fibre Channel analyzer.
Single SD Port to Monitor Traffic
You do not need to use two SD ports to monitor bidirectional traffic on any interface as shown in
Figure 60-9. You can use one SD port and one FC analyzer port by monitoring traffic on the interface at
the same SD port fc2/1.
Figure 60-10 shows a SPAN setup where one session with destination port fc2/1 and source interface
fc1/1 is used to capture traffic in both ingress and egress directions. This setup is more advantageous and
cost effective than the setup shown in
Figure 60-9—it uses one SD port and one port on the analyzer,
instead of using a full, two-port analyzer.
Cisco
MDS 9000
switch
fc1/1
RX
RXRX
TX
TXTX
1
2
FC Analyzer
* The egress (TX) traffic coming out from
the analyzer ports will be dropped.
85652
Dropped *
SD Port
fc2/1
SD Port
fc2/2
RX source in session 1 - SD port fc2/1
TX source in session 2 - SD port fc2/2
TXTX
Storage
device
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