With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
zoneDbTable
zone Db Table
1.3.6.1.4.1.9.9.294.1.1.30
This table contains one entry for each VSAN that is configured. These entries provide the capability to perform operations on the local zone server database on a VSAN.
Back to CISCO-ZS-MIB MIB page.
IPHost Network monitor allows you to monitor zoneDbTable 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.