I recently installed SmokePing on a server at work, so that I could monitor the state of our Internet connection to the cloud providers we use. However, I'm having some trouble figuring out the meaning of the graphs that SmokePing generates. For example:
These five graphs cover the same 24-hour time period. The bottom-right host (labeled "Frontier") is the next hop after our default gateway. The other four hosts correspond to four cloud services we use.
What might cause the transient hump to appear for three hosts, but not the other two? Also, what might cause the small, sudden step-wise increase in latency, followed by a decrease later? Finally, is this type of behavior fairly normal, or is something amiss?