With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
csiNportEntry
csi Nport Entry
1.3.6.1.4.1.9.9.378.1.1.1.1
An entry in the csiNportTable, that describes a virtual N-port. Each virtual N-port is identified by the ifIndex of the SVC interface on the SVC line card, the type of N-port and the VSAN id of the VSAN it belongs to. Each virtual N-port also has a Fibre Channel Identifier, operational state and a WWN (Worldwide Name).
Back to CISCO-SVC-INTERFACE-MIB MIB page.
IPHost Network monitor allows you to monitor csiNportEntry on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.