With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
rtgDpnLpStatsTotalPackets
rtg Dpn Lp Stats Total Packets
This attribute counts the total number of delay and throughput packets handled by DPN packet forwarding on this LP. Note that DPRS packets leaving the network at this module are not counted. The counter wraps to zero when the maximum value is exceeded.
Back to Nortel-Magellan-Passport-DpnRoutingMIB MIB page.
IPHost Network monitor allows you to monitor rtgDpnLpStatsTotalPackets 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 switches right now.