With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
vmpsFallbackVlan
vmps Fallback Vlan
1.3.6.1.4.1.9.9.53.1.1.1.1.6
This is the VLAN returned in the configuration response when a given configuration request contains data that matches nothing in the VMPS database (given the specified classifiers). A value of the empty string signifies that there is no fall-back VLAN.
Back to CISCO-VMPS-MIB MIB page.
IPHost Network monitor allows you to monitor vmpsFallbackVlan on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.
