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chernavskyFlag for United States of America

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Help with interpreting SmokePing-generated graphs

I work for a small non-profit organization.  We have a T1 line shared by about 50 Windows PCs (though only some of them are used at any given time).  People often complain about network sluggishness.  A vendor recently installed SmokePing on a Linux box.  Here are some graphs related to pinging news.google.com:

http://chernavsky.dreamhosters.com/temp/smoke_ping_google.jpg

Can someone help with interpreting these graphs?  Does this look like what you would expect from a T1 line?  Looks like there is some packet loss.  I just don't know enough about this stuff to know what to make of it.

Thanks.
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up_grayed_out
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How does this compare vs. Smokeping stats for an internal IP, like the default gateway? Just wondering if the latency occurs on the LAN, or only on the Internet.

I pinged news.google.com from a T1 with only one client, mine. Yes, I have my own personal T1, for now. Awesome.
Anyway, latency was avg=26ms min=25ms max=32ms
0% packet loss

50 users doesn't sound like that much for a T1. You might want to think about a proxy. Also, you could set up a WSUS server, so all your clients aren't pulling updates over the internet.

Kudos to you for using Smokeping. I'm a big fan. It looks like you're running it on Windows? Runs much better on Linux, and you can zoom in on graphs much easier. Check out my blog for a step-by-ste install guide.
http://www.epoxyjournal.com/2010/03/smokeping-server-install-soup-to-nuts.html

Good luck!
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@up_grayed_out: There is very low latency and no packet loss to the default gateway.

If you look at the graph I posted, there are some blue and purple data-points that indicate packet loss.  Is that normal?  Should I be concerned?

Also, if you look at the "Last 10 Days" graph, you see distinct peaks during business hours.  Is the magnitude of those peaks within the range that you'd expect for  T1?

By the way, SmokePing is running an an Ubuntu machine that is being set up as a monitoring server.
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Thanks for the help.  Appreciate it.
@up_grayed_out -- your conduct is most unprofessional.  I've reported it.  For the record, there was not a lot of overlap between your answer and rfc1180's.  And, you said that 50 users is not a lot for a T1.  I've heard otherwise from a number of different sources.
Yup very unprofessional; good riddance!