With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vrIpxRowStatus
Virtual Router Ipx Row Status
This variable is used as the basis for SNMP naming of vrIpx components. These components can be added and deleted.
Back to Nortel-Magellan-Passport-IpxMIB MIB page.
IPHost Network monitor allows you to monitor vrIpxRowStatus 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.