With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
shelfCardCpuUtil
shelf Card Cpu Utilization
1.3.6.1.4.1.43.1.12.3.1.1.2.2.14.1.2
This attribute indicates an approximation of the current processor utilization level (expressed as a percentage).
Back to Nortel-Magellan-Passport-ShelfMIB MIB page.
IPHost Network monitor allows you to monitor shelfCardCpuUtil 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 speech servers right now.