With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
vsanDynamicListNumber
vsan Dynamic List Number
1.3.6.1.4.1.9.9.282.1.2.6
The number of WWN lists configured for dynamic membership. This is the number of rows in the vsanDynamicTable.
Back to CISCO-VSAN-MIB MIB page.
IPHost Network monitor allows you to monitor vsanDynamicListNumber on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.