With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
appnIsrSessPriStatsRxRuSize
appn Isr Sess Pri Stats Rx Ru Size
This is the maximum request unit (RU) size that can be used on the session.
Back to Nortel-Magellan-Passport-AppnMIB MIB page.
IPHost Network monitor allows you to monitor appnIsrSessPriStatsRxRuSize 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.