With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vrIpCacheIndex
Virtual Router Ip Cache Index
This variable represents the index for the vrIpCache tables.
Back to Nortel-Magellan-Passport-IpMIB MIB page.
IPHost Network monitor allows you to monitor vrIpCacheIndex 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.