With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vrIfTableEntryIfOutOctets
Virtual Router If Table Entry If Out Octets
1.3.6.1.4.1.562.2.4.1.100.10.10.1.6
The total number of octets transmitted out the interface, including framing characters
Back to Nortel-Magellan-Passport-VirtualRouterMIB MIB page.
IPHost Network monitor allows you to monitor vrIfTableEntryIfOutOctets 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.