With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
parTrkRemoteTrunkId
par Trk Remote Trunk Id
1.3.6.1.4.1.351.130.2.2.1.23
This object specifies the logical trunk number at the node on the remote end of the trunk.
Back to CISCO-WAN-PAR-MIB MIB page.
IPHost Network monitor allows you to monitor parTrkRemoteTrunkId 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.