With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vrIfTableEntryAdditionalInfoEntry
Virtual Router If Table Entry Additional Info Entry
1.3.6.1.4.1.562.2.4.1.100.10.11.1
An entry in the vrIfTableEntryAdditionalInfoTable.
Back to Nortel-Magellan-Passport-VirtualRouterMIB MIB page.
IPHost Network monitor allows you to monitor vrIfTableEntryAdditionalInfoEntry 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.