With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
sigChanEIsdnT203
sig Chan E Isdn T203
1.3.6.1.4.1.562.2.4.1.115.14.11.1.4
This attribute specifies the maximum time during which layer 2 frames may be absent. Expiry triggers a check on whether the far end is alive.
Back to Nortel-Magellan-Passport-VnetEuroIsdnMIB MIB page.
IPHost Network monitor allows you to monitor sigChanEIsdnT203 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.