With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
mpanlDlciDiscDeCongestedFromIf
mpanl Dlci Disc De Congested From If
This attribute counts the number of discarded frames, with the Discard Eligibility (DE) bit set, at the MPANL service, due to local congestion, in the direction toward the network. When this count reaches maximum, it wraps to zero.
Back to Nortel-Magellan-Passport-MpaNetworkLinkMIB MIB page.
IPHost Network monitor allows you to monitor mpanlDlciDiscDeCongestedFromIf 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.