With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
fcmSwitchIndex
fcm Switch Index
1.3.6.1.2.1.10.56.1.2.1.1
An arbitrary integer that uniquely identifies a Fibre Channel switch amongst those managed by one Fibre Channel management instance. It is mandatory to keep this value constant between restarts of the agent, and to make every possible effort to keep it constant across restarts.
Back to FC-MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor fcmSwitchIndex 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.