With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
rtgDpnRidFilterExportRidListValue
rtg Dpn Rid Filter Export Rid List Value
This variable represents both the value and the index for the rtgDpnRidFilterExportRidListTable.
Back to Nortel-Magellan-Passport-DpnRoutingMIB MIB page.
IPHost Network monitor allows you to monitor rtgDpnRidFilterExportRidListValue 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.