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Understanding SD-WAN performance

Mostafa Fikry

I wanted to understand how does Sophos firewall measure Latency, Jitter and Packet loss. Is it measuring these metrics between the firewall and the WAN gateway or between the firewall and an external endpoint, if it's the second case then what is this external endpoint and is there a way to specify it (change it) ?

And is it normal to observe higher values of latency and jitter during active usage compared to idle time.



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  • +1 in reply to Mostafa Fikry

    In some scenarios, it's normal to see higher latency/jitter values with active usage. (Mostly when your uplink is being fully utilized.)

    This is mostly caused by bufferbloat.

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