With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
fcNameServerFabricPortName
fc Name Server Fabric Port Name
1.3.6.1.4.1.9.9.293.1.1.4.1.10
The Fabric Port Name (WWN) of the Fx_port to which this Nx_port is attached. If this object is not set, then it will contain the null value '0000000000000000'h.
Back to CISCO-NS-MIB MIB page.
IPHost Network monitor allows you to monitor fcNameServerFabricPortName on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.