With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vrIpBgpOutdbAggregatorAddr
Virtual Router Ip Bgp Outdb Aggregator Address
This attribute indicates the IP address of the last BGP4 speaker that performed route aggregation. A value of 0.0.0.0 indicates the absence of this attribute.
Back to Nortel-Magellan-Passport-BgpMIB MIB page.
IPHost Network monitor allows you to monitor vrIpBgpOutdbAggregatorAddr 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.