With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
vtpVlanEditType
vtp Vlan Edit Type
1.3.6.1.4.1.9.9.46.1.4.2.1.3
The type which this VLAN would have. An implementation may restrict access to this object.
Back to CISCO-VTP-MIB MIB page.
IPHost Network monitor allows you to monitor vtpVlanEditType 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.