With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
csiSessionTable
csi Session Table
1.3.6.1.4.1.9.9.378.1.1.2
A table of SVC sessions. A SVC session is a FC session between a virtual N-port and any other N-port within a FC fabric.
Back to CISCO-SVC-INTERFACE-MIB MIB page.
IPHost Network monitor allows you to monitor csiSessionTable on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.