With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
vlanStatsInternalVlans
vlan Stats Internal Vlans
1.3.6.1.4.1.9.9.46.1.10.3
This object indicates the number of the internal VLANs existing in the system.
Back to CISCO-VTP-MIB MIB page.
IPHost Network monitor allows you to monitor vlanStatsInternalVlans 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.