With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
vtpVersion2BasicGroup
vtp Version2 Basic Group
1.3.6.1.4.1.9.9.46.3.2.12
The object required to indicate the version of VTP in use by a management domain.
Back to CISCO-VTP-MIB MIB page.
IPHost Network monitor allows you to monitor vtpVersion2BasicGroup on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.