With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
shelfCardMemoryUsageAvgIndex
shelf Card Memory Usage Average Index
1.3.6.1.4.1.43.1.12.3.1.1.2.2.276.1.1
This variable represents the shelfCardMemoryUsageAvgTable specific index for the shelfCardMemoryUsageAvgTable.
Back to Nortel-Magellan-Passport-ShelfMIB MIB page.
IPHost Network monitor allows you to monitor shelfCardMemoryUsageAvgIndex 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.