With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
frUniSigLastClearRemoteDataNetworkAddress
Frame Relay Uni Sig Last Clear Remote Data Network Address
This attribute indicates the Data Network Address (DNA) of the remote (the other end of the SVC connection) of the call which cleared last and whose clear and diagnostic codes were recorded.
Back to Nortel-Magellan-Passport-FrameRelayUniMIB MIB page.
IPHost Network monitor allows you to monitor frUniSigLastClearRemoteDataNetworkAddress 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.