With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vrBrTbProvTable
Virtual Router Br Tb Prov Table
This group houses all the provisionable attributes applicable to a transparent bridge, those attributes that are global and are not port specific.
Back to Nortel-Magellan-Passport-BridgeMIB MIB page.
IPHost Network monitor allows you to monitor vrBrTbProvTable 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.