With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
mpanlVoFrFragmentedHighestPriorityFrames
mpanl Vo Fr Fragmented Highest Priority Frames
This attribute counts egress frames with the highest priority, which had to be fragmented because they were larger than maximumFrameSize. This could happen when a data call is setup to use the highest emission priority, or MPA is provisioned with too low maximum frame size. When the maximum is reached the count wraps to zero.
Back to Nortel-Magellan-Passport-MpaNetworkLinkMIB MIB page.
IPHost Network monitor allows you to monitor mpanlVoFrFragmentedHighestPriorityFrames 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 modems right now.