With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
compClass
comp Class
An object identifier which points to the SNMP Mib Arc for that particular component class. For example, a replication of 1.3.6.1.4.1.562.2.4.1.12 (iso.org.dod. internet.private.enterprises.nortel.magellan.passport. components.lp) corresponds to the Lp component class.
Back to Nortel-Magellan-Passport-StateSummaryMIB MIB page.
IPHost Network monitor allows you to monitor compClass 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.