With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
appnPortMaxTxBtuSize
appn Port Max Tx Btu Size
This is the maximum basic transmission unit (BTU) size that can be sent. The BTU is the unit of data and control information passed between path control components.
Back to Nortel-Magellan-Passport-AppnMIB MIB page.
IPHost Network monitor allows you to monitor appnPortMaxTxBtuSize 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.