With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
vmMembershipSummaryExtPorts
vm Membership Summary Ext Ports
1.3.6.1.4.1.9.9.68.1.2.3.1.2
The set of the device's member ports that belong to the VLAN. It has the VLAN membership information of up to 2k ports with the port number starting from the information indicated in vmMembershipPortRangeIndex object of the same row. For example, if the value of vmMembershipPortRangeIndex is 'twoKto4K', the port number indicated in this object starting from 2049 and ending to 4096. A port number is the value of dot1dBasePort for the port in the BRIDGE-MIB (RFC 1493).
Back to CISCO-VLAN-MEMBERSHIP-MIB MIB page.
IPHost Network monitor allows you to monitor vmMembershipSummaryExtPorts 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.
