With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
atmIfIispSigCurrentConnections
atm If Iisp Sig Current Connections
This attribute indicates the total number of currently active connections.
Back to Nortel-Magellan-Passport-AtmIispMIB MIB page.
IPHost Network monitor allows you to monitor atmIfIispSigCurrentConnections 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.