With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
appnDlusPipeState
appn Dlus Pipe State
This attribute indicates the current state of the DLUR-DLUS pipe. inactive indicates the pipe is not connected (the session has likely failed), pendingActive indicates the pipe is connecting, active indicates the pipe is currently connected and data is flowing, and pendingInactive indicates the pipe is being disconnected.
Back to Nortel-Magellan-Passport-AppnMIB MIB page.
IPHost Network monitor allows you to monitor appnDlusPipeState 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.