With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vrIpRipExportOspfTag
Virtual Router Ip Rip Export Ospf Tag
This attribute specifies the OSPF learned external routes to which this export policy applies, based on the learned OSPF tag of the routes. This attribute can only be set to a non default value when protocol is set to ospfExternal. The default value of 4294967295 implies any tag.
Back to Nortel-Magellan-Passport-IpMIB MIB page.
IPHost Network monitor allows you to monitor vrIpRipExportOspfTag 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 modems right now.