HP Cisco MDS 9124 Cisco MDS 9000 Family Fabric Manager Configuration Guide, Re - Page 1180

Monitoring Traffic Using Fibre Channel Analyzers Chapter 62 Monitoring Network Traffic Using SPAN Send documentation comments to [email protected] Figure 62-9 Fibre Channel Analyzer Using SPAN SD Port fc2/1 Cisco MDS 9000 switch RX source in session 1 - SD port fc2/1 TX source in session 2 - SD port fc2/2 fc1/1 TX RX SD Port fc2/2 Storage device TX TX Dropped * RX RX TX TX 1 2 FC Analyzer * The egress (TX) traffic coming out from the analyzer ports will be dropped. 85652 Configuring Fibre Channel Analyzers Using SPAN To configure Fibre Channel Analyzers using SPAN for the example in Figure 62-9, follow these steps: Step 1 Step 2 Step 3 Step 4 Configure SPAN on interface fc1/1 in the ingress (Rx) direction to send traffic on SD port fc2/1 using session 1. Configure SPAN on interface fc1/1in the egress (Tx) direction to send traffic on SD port fc2/2 using session 2. Physically connect fc2/1 to port 1 on the Fibre Channel analyzer. 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 62-9. 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 62-10 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 62-9-it uses one SD port and one port on the analyzer, instead of using a full, two-port analyzer. 62-12 Cisco MDS 9000 Family CLI Configuration Guide OL-16184-01, Cisco MDS SAN-OS Release 3.x