With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
sigChanEQsigT200
sig Chan E Qsig T200
1.3.6.1.4.1.562.2.4.1.115.2.11.1.2
This attribute specifies the maximum time between a layer 2 frame and its acknowledgment.
Back to Nortel-Magellan-Passport-VnetEtsiQsigMIB MIB page.
IPHost Network monitor allows you to monitor sigChanEQsigT200 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.