With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
btdsLCoPathTable
btds L Co Path Table
This attribute contains the trunk component names over which the path has been instantiated and the remote end point name terminating the path.
Back to Nortel-Magellan-Passport-BitTransparentMIB MIB page.
IPHost Network monitor allows you to monitor btdsLCoPathTable on Allied Telesis device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Nortel switches right now.