With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
x25DtePleOpTable
x25 Dte Ple Operation Table
1.3.6.1.4.1.562.2.4.1.90.6.11
This group contains the Operational attributes relevant to an interface used to carry Multiprotocol Interconnect traffic over X.25.
Back to Nortel-Magellan-Passport-X25DteMIB MIB page.
IPHost Network monitor allows you to monitor x25DtePleOpTable 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 secure routers right now.