With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
vmpsPortName
vmps Port Name
1.3.6.1.4.1.9.9.53.1.2.2.1.3
The ifName of the port on which dynamic access to the specified VLAN is allowed.
Back to CISCO-VMPS-MIB MIB page.
IPHost Network monitor allows you to monitor vmpsPortName 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.