With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
nmisTelnetSessionOperTable
nmis Telnet Session Operational Table
This group contains the operational attributes for a Telnet session.
Back to Nortel-Magellan-Passport-MgmtInterfacesMIB MIB page.
IPHost Network monitor allows you to monitor nmisTelnetSessionOperTable 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.