With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vrMmOperEntry
Virtual Router Mm Operational Entry
1.3.6.1.4.1.562.2.4.1.100.2.11.1
An entry in the vrMmOperTable.
Back to Nortel-Magellan-Passport-VirtualRouterMIB MIB page.
IPHost Network monitor allows you to monitor vrMmOperEntry 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 speech servers right now.