How are the Packet Statistics and Port Statistics calculated and what do they mean?
The Packet Statistics dialog in the Telemetry Processing application contains information on how much data TReK is processing and if there are any errors identified when the packets arrive. This information is updated once every second. For each packet the number of packets received and dropped by TReK is calculated. The dropped packets are actually pulled from the network, but removed from the queues because TReK could not process them fast enough. Each packet is also checked for sequence errors. The CCSDS sequence count in the primary header is checked for each packet. If the packet is not the next in the sequence, the number of sequence errors will increment. The maximum packet sequence error for each packet is the maximum difference in sequence counts between successive packets. On the Port tab, information about each port’s data rate, packets received and packets queued are displayed. The packets received on a port are the total number pulled from the network. This number could in
