<div dir="ltr">Depends on whether you've tuned the TCP stack on the machine you're testing from.. With default window sizes etc, I'd expect maybe 10-20mbps per stream from the US, less from Europe? With nice large window sizes and receive buffers, I'd be expecting 100-150mbps per stream, provided the server on the other end isn't limiting window sizes to something stupidly low? (Have had that issue a few times with SaaS providers in the US.. Usually an email to their helpdesk with some pcaps, and an explanation of how window sizes work, and how they need to tune their servers, will result in a huge jump in performance)<div><br></div><div>A short look with tcpdump, ethereal, etc should tell you whether it's a window size issue, or something further upstream. If you can, adding an adjust-mss rule on your router to say drop your negotiated mss on outbound connections to say 1400, may make a (large) difference if your provider is using a GRE-based DDoS mitigation platform in the US, and they're doing transparent packet fragmentation, rather than just sending back frag-needed packets.</div></div><div class="gmail_extra"><br><div class="gmail_quote">On 12 October 2017 at 18:22, Dino Sosic <span dir="ltr"><<a href="mailto:Dino.Sosic@datacom.com.au" target="_blank">Dino.Sosic@datacom.com.au</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div lang="EN-AU" link="#0563C1" vlink="#954F72">
<div class="m_-4320345892141847853WordSection1">
<p class="MsoNormal">Hi,<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Out of curiosity, if you get a 250 mbps circuit from an ISP (IP transit service) and all is fine within ANZ but as soon as you go international speed tests show 2/2 mbps, FTP transfers show 7/8 mbps, would that be acceptable? (Same towards
multiple US, Europe and Asia destinations)<u></u><u></u></p>
<p class="MsoNormal">What is the minimum you would deem acceptable to international destinations?
<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Cheers<u></u><u></u></p>
<p class="MsoNormal">Dino<u></u><u></u></p>
<p class="MsoNormal"><span lang="EN-NZ" style="font-size:10.5pt;color:#00bce2"><u></u> <u></u></span></p>
<p class="MsoNormal"><u></u> <u></u></p>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">
<p>Damien Gardner Jnr<br>VK2TDG. Dip EE. GradIEAust<br><a href="mailto:rendrag@rendrag.net" target="_blank">rendrag@rendrag.net</a> - <span><a href="http://www.rendrag.net/" target="_blank">http://www.rendrag.net/</a><u><br></u></span>--<br>We rode on the winds of the rising storm,<br> We ran to the sounds of thunder.<br>We danced among the lightning bolts,<br> and tore the world asunder</p></div></div>
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