With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vrIpBgpExportOspfTag
Virtual Router Ip Bgp Export Ospf Tag
This key attribute specifies the OSPF tag when the protocol attribute is set to either ospfInternal or ospfExternal. The default tag value 4294967295 (FFFFFFFF in hex) indicates that the tag not specified.
Back to Nortel-Magellan-Passport-BgpMIB MIB page.
IPHost Network monitor allows you to monitor vrIpBgpExportOspfTag 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.