With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
frUniTraceQueueLimit
Frame Relay Uni Trace Queue Limit
This attribute specifies the total number of bytes of traced data which may be queued for transmission to the trace receiver. When this limit is exceeded, incoming traced frames are discarded. This attribute can be set while a trace is active and takes effect immediately.
Back to Nortel-Magellan-Passport-FrameRelayUniTraceMIB MIB page.
IPHost Network monitor allows you to monitor frUniTraceQueueLimit 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.