With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vrSnmpAdminStatus
Virtual Router Snmp Admin Status
1.3.6.1.4.1.562.2.4.1.100.100.1.1
This sets the desired state of this VirtualRouter. The up state indicates the Vr is operational. The down state indicates the Vr is not operational. The down state is only valid when the managementAccess attribute is disabled. Testing is an invalid state for the Vr.
Back to Nortel-Magellan-Passport-VirtualRouterMIB MIB page.
IPHost Network monitor allows you to monitor vrSnmpAdminStatus 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 modems right now.