With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
trkDiscBpTable
trk Disc Bridge Port Table
This attribute counts the number of packets received from the remote module that have been discarded. It is a vector indexed by the emission priorities (ep0, ep1 and ep2) of the packets. The highest emission priority is ep0. These counters wrap around to zero when the maximum value is exceeded. Two main reasons that cause this counter to increment are: (1) the remote protocol is not compatible to the local protocol stack and, (2) the packet cannot be forwarded due to either a recent loss of connectivity or due to congestion. DESCRIPTION
Back to Nortel-Magellan-Passport-TrunksMIB MIB page.
IPHost Network monitor allows you to monitor trkDiscBpTable 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.