With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
mpanlDlciDiscardedSegFrm
mpanl Dlci Discarded Seg Frm
If the value of the unitsCounted attribute in moduleData component is segments, this attribute counts the number of segments in invalid frames received from the interface and discarded at the DLCI. If the value of the unitsCounted attribute in moduleData component is frames, this attribute counts the number of invalid frames received from the interface and discarded at the DLCI. Segments of frames are counted since the start of the interval period. The count is reset to zero when an accounting record is generated. The count is a sum of segments in frames or frames discarded due to the number of octets in the information field greater than the subscribed maximum or equal to 0, due to aBit turned off, or due to rate enforcement.
Back to Nortel-Magellan-Passport-MpaNetworkLinkMIB MIB page.
IPHost Network monitor allows you to monitor mpanlDlciDiscardedSegFrm 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.