With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
htdsFramerLargeFrmErrors
htds Framer Large Frm Errors
This attribute counts the total number of frames received which were too large. The frame was longer than 8 kbytes or it contained more than the 255 block hardware limit. This count wraps to zero after reaching its maximum value.
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IPHost Network monitor allows you to monitor htdsFramerLargeFrmErrors 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 speech servers right now.