With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
btdsMcdnFrmFromIf
btds Mcdn Frm From If
This attribute counts the number of all hdlc frames, correct or not, received from the PRI. This count wraps to zero after reaching its maximum value.
Back to Nortel-Magellan-Passport-BitTransparentMIB MIB page.
IPHost Network monitor allows you to monitor btdsMcdnFrmFromIf 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.