With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
appnIdNumber
appn Id Number
The idNumber is used to identify the local SNA node. It is the last five hexadecimal digits of the SNA node id and is administratively defined. The idNumber will be combined with the three hexadecimal digit block number to form the SNA node id. The SNA node id is included in APPN alerts and in XIDs. A unique value is required for connections to SNA.
Back to Nortel-Magellan-Passport-AppnMIB MIB page.
IPHost Network monitor allows you to monitor appnIdNumber 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 modems right now.