With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
colAgIndex
col Ag Index
This variable represents the index for the colAg tables.
Back to Nortel-Magellan-Passport-DataCollectionMIB MIB page.
IPHost Network monitor allows you to monitor colAgIndex 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.