With IPHost Network Monitor you can run simple snmp requests against a Avaya device in your network.
cjnDdpTooLongErrors
Cajun Ddp Too Long Errors
1.3.6.1.4.1.52.4.43.2.4.10.1.10
The total number of input DDP datagrams dropped because the received data length was greater than the data length specified in the DDP header or because they exceeded the maximum DDP datagram size.
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IPHost Network monitor allows you to monitor cjnDdpTooLongErrors on Avaya device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Avaya routing switches right now.