With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
sigChanMcdnT23
sig Chan Mcdn T23
1.3.6.1.4.1.562.2.4.1.115.17.11.1.1
This attribute specifies the layer 2 enable request timer.
Back to Nortel-Magellan-Passport-VnetMcdnSigMIB MIB page.
IPHost Network monitor allows you to monitor sigChanMcdnT23 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 multiplexers right now.