With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
vlanTrunkPortVlansXmitJoined
vlan Trunk Port Vlans Xmit Joined
1.3.6.1.4.1.9.9.46.1.6.1.1.11
A string of octets containing one bit per VLAN in the management domain on this trunk port. The first octet corresponds to VLANs with VlanIndex values of 0 through 7; the second octet to VLANs 8 through 15; etc. The most significant bit of each octet corresponds to the lowest value VlanIndex in that octet. If the bit corresponding to a VLAN is set to '1', then this VLAN is presently being forwarded on this trunk port, i.e., it is not pruned; if the bit is set to '0', then this VLAN is presently not being forwarded on this trunk port, either because it is pruned or for some other reason.
Back to CISCO-VTP-MIB MIB page.
IPHost Network monitor allows you to monitor vlanTrunkPortVlansXmitJoined on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.
