With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
vtpNotificationsEnabled
vtp Notifications Enabled
1.3.6.1.4.1.9.9.46.1.1.3
An indication of whether the notifications/traps defined by the vtpConfigNotificationsGroup, vtpConfigNotificationsGroup2, and vtpConfigNotificationsGroup8 are enabled.
Back to CISCO-VTP-MIB MIB page.
IPHost Network monitor allows you to monitor vtpNotificationsEnabled 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.