With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
rtgDpnRowStatus
rtg Dpn Row Status
This variable is used as the basis for SNMP naming of rtgDpn components. These components cannot be added nor deleted.
Back to Nortel-Magellan-Passport-DpnRoutingMIB MIB page.
IPHost Network monitor allows you to monitor rtgDpnRowStatus 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.