With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
x25DtePeerRowStatus
x25 Dte Peer Row Status
1.3.6.1.4.1.562.2.4.1.90.2.1.1.1
This variable is used as the basis for SNMP naming of x25DtePeer components. These components can be added and deleted.
Back to Nortel-Magellan-Passport-X25DteMIB MIB page.
IPHost Network monitor allows you to monitor x25DtePeerRowStatus 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 multiplexers right now.