With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
modVcsUnitsCounted
mod Vcs Units Counted
This attribute specifies what is counted by frame services. If set to frames, frames are counted, else segments are counted.
Back to Nortel-Magellan-Passport-SubnetInterfaceMIB MIB page.
IPHost Network monitor allows you to monitor modVcsUnitsCounted 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.