How does Pandora´s Packet Loss test work? - Pandora FMS Community

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How does Pandora´s Packet Loss test work?

Posted by JPSelter on julio 2, 2018 at 10:22

Hello,

I´m trying to analyse an issue I have with a VPN connection between two company sites. When moving a file from fileserver A to fileserver B I should get a transfer speed at 1250 kb/s but instead I only get 85-300 kb/s.

I tested the connection with the Pandora Packet Loss test and I get 65-70% packet loss. When I test with a normal ping command (and fping) I get 0-4% packet loss. I cannot recreate Pandora´s result with standard tools.

So what is the difference and how reliable is the test?

Thanks for your help!

kind regards, Peter

rohithverma replied 4 years, 3 months ago 4 Members · 4 Replies
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amzoun

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septiembre 4, 2020 at 05:57

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Monitoring packet loss
Using Pandora FMS and the packet_loss.sh plugin should give you the feedback you need to identify when and where your packets are bleeding out. It works by pinging a remote component or element, such as an IP address, hostname or website, and checks whether there has been any packet loss

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ismael-moreno

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septiembre 8, 2020 at 20:41

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Hi,
The command used by this plugin to check the packet loss is:

ping -W -q -f -c 50 | grep -o “[0-9.]*. packet loss” | grep -o “[0-9.]*”
rohithverma

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octubre 1, 2020 at 19:43

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The command given by ismael works, do check it out.
rohithverma

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octubre 5, 2020 at 11:36

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The command given by ismael works, do check it out.

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