This permits each ICMP echo reply to be treated as a self-contained data sample, without any auxiliary state information. The ICMP echo reply contains both the original ICMP echo request transmission timestamp and the reception timestamp. It would not be difficult to port to other BSD-derived IP implementations. Our kernel work is done at the IP layer and not in the NIC drivers, so our solution works for any network interface. Data analysis Most of the data analysis performed by the skping GUI is simple.
Packet loss is a simple measure of lost packets divided by packets sent.
The only reasonably complex data analysis performed by skping at this time is spectral analysis. We use the Lomb periodogram for spectral analysis, mostly due to its ability to handle input samples that are not evenly spaced in time. However, frequency analysis has yielded some interesting results for some measurements. There is nothing revolutionary about the data presentation used by skping . In fact, I consider the GUI mundane.