With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
mpanlSigCurrentQueueSize
mpanl Sig Current Queue Size
This attribute shows the current number of frames in the SVC data link layer transmit queue.
Back to Nortel-Magellan-Passport-MpaNetworkLinkMIB MIB page.
IPHost Network monitor allows you to monitor mpanlSigCurrentQueueSize 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.