With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
trkDprsStatsDiscBpValue
trk Dprs Stats Disc Bridge Port Value
This variable represents an individual value for the trkDprsStatsDiscBpTable.
Back to Nortel-Magellan-Passport-TrunksMIB MIB page.
IPHost Network monitor allows you to monitor trkDprsStatsDiscBpValue 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.