With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
vtpVlanEditMtu
vtp Vlan Edit Mtu
1.3.6.1.4.1.9.9.46.1.4.2.1.5
The MTU size which this VLAN would have, defined as the size of largest MAC-layer (information field portion of the) data frame which can be transmitted on the VLAN. An implementation may restrict access to this object.
Back to CISCO-VTP-MIB MIB page.
IPHost Network monitor allows you to monitor vtpVlanEditMtu 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.
