With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
mpanlDlciDeFrmToIf
mpanl Dlci De Frm To If
This attribute counts the frames sent to the interface with the Discard Eligibility (DE) bit set. When the count reaches maximum it wraps to zero.
Back to Nortel-Magellan-Passport-MpaNetworkLinkMIB MIB page.
IPHost Network monitor allows you to monitor mpanlDlciDeFrmToIf 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.