With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vrPpIpPortArpStatus
Virtual Router Passport Ip Port Arp Status
This attribute specifies whether ARP is enabled or disabled on this IpPort. If auto is specified, an appropriate value will be selected based on the IpPort media type.
Back to Nortel-Magellan-Passport-IpMIB MIB page.
IPHost Network monitor allows you to monitor vrPpIpPortArpStatus 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.