With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
appnRtpMaxBtuSize
appn Rtp Max Btu Size
The maximum BTU size (the length of the information field in a frame) of the High Performance Routing-Rapid Transport Protocol pipe.
Back to Nortel-Magellan-Passport-AppnMIB MIB page.
IPHost Network monitor allows you to monitor appnRtpMaxBtuSize 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 switches right now.