With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
vsanWWNListGroup
vsan WWN List Group
1.3.6.1.4.1.9.9.282.3.2.5
A collection of objects for creating WWN lists and adding Port WWNs into Port WWN list.
Back to CISCO-VSAN-MIB MIB page.
IPHost Network monitor allows you to monitor vsanWWNListGroup on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.