With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
aRtgPnniTopActiveParentNodeId
a Rtg Pnni Top Active Parent Node Id
This attribute indicates the node identifier being used by the LGN representing this peer group at the next higher level peer group.
Back to Nortel-Magellan-Passport-AtmNetworkingMIB MIB page.
IPHost Network monitor allows you to monitor aRtgPnniTopActiveParentNodeId 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 speech servers right now.