With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
atmIfIispSide
atm If Iisp Side
This attribute indicates which side the interface is, user or network.
Back to Nortel-Magellan-Passport-AtmIispMIB MIB page.
IPHost Network monitor allows you to monitor atmIfIispSide 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 switches right now.