With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
appnLsName
appn Ls Name
1.3.6.1.2.1.34.4.1.1.5.1.1.1
This string identifies which physical interface the link station is associated with.
Back to Nortel-Magellan-Passport-AppnMIB MIB page.
IPHost Network monitor allows you to monitor appnLsName 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.