With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
frMuxDlciRowStatusEntry
Frame Relay Mux Dlci Row Status Entry
1.3.6.1.4.1.1570.1.4.1.1
A single entry in the table represents a single frMuxDlci component.
Back to Nortel-Magellan-Passport-FrameRelayMuxMIB MIB page.
IPHost Network monitor allows you to monitor frMuxDlciRowStatusEntry 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.