With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
parIfType
par If Type
1.3.6.1.4.1.351.130.2.1.1.2
This object specifies the type of interface. User ports need to be UNI interface. The trunks can be either UNI or NNI. userport(1) : UNI interface. This is for user ports. routingtrunk(2) : NNI interface. This value can be set provided there are no connections on the interface. feedertrunk(3) : It is feeder trunk. clkport(4) : Clock port. virtualtrunk(5): Virtual Trunk. Type of interface can be changed from nni(2) to uni(1) if the trunk is not added.
Back to CISCO-WAN-PAR-MIB MIB page.
IPHost Network monitor allows you to monitor parIfType 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.