With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
btdsDpnss1LargeFrmErrors
btds Dpnss1 Large Frm Errors
This attribute counts the number of received frames which were longer than 1024 octets. This count wraps to zero after reaching its maximum value.
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IPHost Network monitor allows you to monitor btdsDpnss1LargeFrmErrors 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.