With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
trkUnAckedRowStatus
trk Un Acked Row Status
1.3.6.1.4.1.562.2.4.1.60.2.1.1.1
This variable is used as the basis for SNMP naming of trkUnAcked components. These components can be added and deleted.
Back to Nortel-Magellan-Passport-UnackTrunksMIB MIB page.
IPHost Network monitor allows you to monitor trkUnAckedRowStatus 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.