With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
frMuxFramerStatsEntry
Frame Relay Mux Framer Stats Entry
1.3.6.1.4.1.1570.1.2.13.1
An entry in the frMuxFramerStatsTable.
Back to Nortel-Magellan-Passport-FrameRelayMuxMIB MIB page.
IPHost Network monitor allows you to monitor frMuxFramerStatsEntry 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.