With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
atmMpeLinkToProtocolPort
atm Mpe Link To Protocol Port
This attribute contains a protocol port component name. The attribute associates an AtmMpe application with a protocol port.
Back to Nortel-Magellan-Passport-AtmMpeMIB MIB page.
IPHost Network monitor allows you to monitor atmMpeLinkToProtocolPort 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.