With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vrVirtualPrivateIntranetIdentifier
Virtual Router Virtual Private Intranet Identifier
1.3.6.1.4.1.562.2.4.1.100.100.1.3
Identifies the Virtual Private Intranet (VPI) associated with this Virtual Router. The vpiId must be unique for each VR on a Passport and ach interconnected VR must have the same vpiId.
Back to Nortel-Magellan-Passport-VirtualRouterMIB MIB page.
IPHost Network monitor allows you to monitor vrVirtualPrivateIntranetIdentifier 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 secure routers right now.