With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
lecLinkToProtocolPort
LAN Emulation Client Link To Protocol Port
This attribute contains a protocol port component name. The attribute associates the application with a protocol port.
Back to Nortel-Magellan-Passport-LaneClientMIB MIB page.
IPHost Network monitor allows you to monitor lecLinkToProtocolPort 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 speech servers right now.