With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
lpImaReceiveCellUtilization
lp Ima Receive Cell Utilization
This attribute indicates the ratio of the number of valid, assigned user cells received on the IMA group to the IMA cell capacity (based on the number of active links). The utilization is calculated over a one minute period. This attribute will always have a value of 0 if the protocol for the IMA group is proprietary.
Back to Nortel-Magellan-Passport-ImaMIB MIB page.
IPHost Network monitor allows you to monitor lpImaReceiveCellUtilization 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 modems right now.