With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cbeDot1dVlanOperVlan
Cisco Bridge Dot1d Vlan Operation Vlan
1.3.6.1.4.1.9.9.401.1.3.1.1.1
The VLAN-ID of the VLAN with which the access port is currently associated.
Back to CISCO-BRIDGE-EXT-MIB MIB page.
IPHost Network monitor allows you to monitor cbeDot1dVlanOperVlan on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.