How about uploading a 1MB file to a known external location, then writing a MRTG plugin that times a download of this file and converts this time to a bps? You need to have a large enough file else the HTTP protocol overhead will impact the calculations. Of course this is dependent of the speed of the external website, too, so you need to be sure that THAT is not the bottleneck. Possibly doing this for several locations and averaging the results?
If you are going to use MRTG, you probably want to run the checks every 5min and use RRDtool, then routers2, mrtg-rrd or 14all to generate the graphs as required. Steve ________________________________ From: [email protected] [[email protected]] On Behalf Of Matt Baer [[email protected]] Sent: Sunday, 4 October 2009 8:07 a.m. To: mrtg Subject: [mrtg] Monitoring Internet Speeds Does anyone have a method for monitoring internet speeds? I want to create a graph that will basically run a speed test and graph the results every hour or half hour. I'm not sure on the perl script or how to create the cron job correctly. I can figure out the timing part, but the script side, I have no clue. Any suggestions?
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