With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
atmCRStatsTable
atm CR Stats Table
This group represents the operational attributes for the AtmCallRouter component.
Back to Nortel-Magellan-Passport-AtmNetworkingMIB MIB page.
IPHost Network monitor allows you to monitor atmCRStatsTable 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 multiplexers right now.