NFD » ndn-tools

Here is an example of a ndncatchunks summary:

All segments have been received.
Time elapsed: 4984.3 milliseconds
Total # of segments received: 23676
Total size: 104174kB
Goodput: 167.203002 Mbit/s
Total # of packet loss events: 1
Packet loss rate: 4.22369e-05
Total # of retransmitted segments: 1789
Total # of received congestion marks: 50
RTT min/avg/max = 0.877/87.216/634.587 ms

However, the statistics about packet loss are confusing. The actual number of lost packets are 1789, thus the loss rate is 7.56%.

Proposed solution:

• Write "Total # of packet loss: 1789 (which caused 1 window decrease)"
• "Packet loss rate" should be calculated by actual number of lost packets, not "loss events" (window decreases)
• Keep # of retx, as they may differ from the packet loss count.