With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
crsAltRidIndex
crs Alt Rid Index
This variable represents the index for the crsAltRid tables.
Back to Nortel-Magellan-Passport-CallRedirectionMIB MIB page.
IPHost Network monitor allows you to monitor crsAltRidIndex 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 switches right now.