I am looking for a simple tool that I can monitor available bandwidth on my 3 different ISPs in real time. Not what is being used, but what is available…like a speed test, but one that can show historical data. I have PRTG but that shows what is being used. I also do not want it to constant speed tests, that would take up everything I have. I know I could just as easily do a spreadsheet and fill it in. Anyone maybe have a Powershell script that would do this, do a speed test and then fill in results on a spreadsheet?

3 points

You can probably do something with EXEXML Advaned sensor in PRTG, I’ve used this sensor for various PowerShell scripts.

Here is an example: https://greiginsydney.com/new-ooklaspeedtest-ps1/

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1 point

Thank you, I will check that out.

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4 points

So you want the available bandwidth to be monitored in “real time”, but you don’t want constant speed tests to happen. Then you mention a script doing a speed test.

You’re gonna have to choose: Either you run some kind of Speedtest on a regular basis, which will give you somewhat “real-time” results, or you don’t do it, and you don’t have real-time data as a result.

A very quick google search brought up this power shell script, that even formats the results for PRTG:

https://github.com/greiginsydney/New-OoklaSpeedTest.ps1

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1 point

Yeah, I am a bit scatter brained today…lol. I am not sure what I want, but I will check out that github and see what I can do with that. Thank you!

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1 point

So, a speed test can show bandwidth but so can a graph, when you see the flat line, you’ve hit your limit.

Use interface counter graphs to map out b/s and then you’ll be able to see where you’re actually maxing out. If you’ve hit a bandwidth limit on a connection but your graph is still spiky it’s not you it’s them.

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1 point

But if he wanted that historical data for, say, making sure an ISP delivers promised bandwidth, then unless he’s constantly maxing out the connection, the usage graph is going to be fairly useless.

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