Need help interpreting graphs from SmokePing
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:
http://chernavsky.dreamhos
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?
http://chernavsky.dreamhos
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?
David Johnson, CD
caching maybe why the delay and the subsequent decrease. To all sites except your nearest neighbor they all slow down from 1800 until 12pm the next day. Some are dramatic .. cyberhost is consistently slow and it gets a tatency bump as the same time as others.
ASKER
David, can you explain about caching? What's being cached? And why is it happening at that particular time? And what about the humps that show up on three of the five hosts? Also, is this normal? Or is something amiss?
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