With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
gvcIfDnaIncomingOptionsTable
General Vc Interface Dna Incoming Options Table
IncomingOptions defines set of options for incoming calls. These options are used for calls arriving to the interface represented by Dna. For calls originated from the interface, IncomingOptions attributes are not used.
Back to Nortel-Magellan-Passport-GeneralVcInterfaceMIB MIB page.
IPHost Network monitor allows you to monitor gvcIfDnaIncomingOptionsTable 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.