With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
appnIsrSessSecStatsTxDataBytes
appn Isr Sess Sec Stats Tx Data Bytes
This is the number of normal flow data bytes sent on the session, the counter wraps to zero.
Back to Nortel-Magellan-Passport-AppnMIB MIB page.
IPHost Network monitor allows you to monitor appnIsrSessSecStatsTxDataBytes 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.