<p dir="ltr">On 7 Sep 2016 16:52, "John Mann" <<a href="mailto:john.mann@monash.edu">john.mann@monash.edu</a>> wrote:<br>
><br>
> Hi,<br>
><br>
> Assuming "Sky" == "AS5607: BSKYB-BROADBAND-AS"<br>
> We get<br>
> <a href="http://stats.labs.apnic.net/ipv6/AS5607?a=5607&c=GB&x=1&s=1&p=1&w=7">http://stats.labs.apnic.net/ipv6/AS5607?a=5607&c=GB&x=1&s=1&p=1&w=7</a><br>
> 80+% of their users do IPv6 <br>
><br>
> The other good news is that AS5607 has the most Samples (3.1M)<br>
> and so looks to be the busiest ISP in GB.<br>
><br>
> The other big ISPs: BT (2.5%) and Virgin (0%) have a way to go yet.<br>
></p>
<p dir="ltr">Another apnic stats website worth having a look around is their new IPv6 vs IPv4 performance one, announced in Geoff's blog post recently:</p>
<p dir="ltr"><a href="https://blog.apnic.net/2016/08/22/ipv6-performance-revisited/">https://blog.apnic.net/2016/08/22/ipv6-performance-revisited/</a></p>
<p dir="ltr">To put some usability context behind that, humans perceive a response less than or equal to about 100 ms to be reacting instantaneously:</p>
<p dir="ltr"><a href="https://www.nngroup.com/articles/response-times-3-important-limits/">https://www.nngroup.com/articles/response-times-3-important-limits/</a></p>
<p dir="ltr">So, for example, when a user clicks a link, there should be some indication the page is loading, and ideally, although probably pretty hard to achieve, the page has completed loading within 100ms.</p>
<p dir="ltr">That 100ms budget can get pretty stretched if you consider the time to perform a DNS lookup, and then complete a TCP 3 way handshake before any data for the webpage gets sent and then displayed in some form.</p>
<p dir="ltr">That's the motivation for TCP Fast Open:</p>
<p dir="ltr"><a href="https://en.wikipedia.org/wiki/TCP_Fast_Open?wprov=sfla1">https://en.wikipedia.org/wiki/TCP_Fast_Open?wprov=sfla1</a></p>
<p dir="ltr">Regards,<br>
Mark.</p>
<p dir="ltr">> Thanks,<br>
> John<br>
><br>
><br>
> On 7 September 2016 at 16:32, Mark Smith <<a href="mailto:markzzzsmith@gmail.com">markzzzsmith@gmail.com</a>> wrote:<br>
>><br>
>><a href="https://corporate.sky.com/media-centre/news-page/2016/sky-completes-roll-out-of-ipv6-becoming-the-first-major-uk-internet-provider-to-future-proof-its-service-for-customers"> https://corporate.sky.com/media-centre/news-page/2016/sky-completes-roll-out-of-ipv6-becoming-the-first-major-uk-internet-provider-to-future-proof-its-service-for-customers</a><br>
>><br>
>> "Sky today announces that over 90% of its broadband customers are now<br>
>> IPv6 enabled"<br>
>><br>
>> and going by this article, that is 5.34 million subscribers IPv6 enabled.<br>
>><br>
>><a href="http://www.ispreview.co.uk/index.php/2016/04/uk-isp-sky-broadband-grows-6-million-subscribers.html"> http://www.ispreview.co.uk/index.php/2016/04/uk-isp-sky-broadband-grows-6-million-subscribers.html</a><br>
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><br>
><br>
><br>
><br>
> -- <br>
> John Mann<br>
> Network Architect, Infrastructure Automation & Delivery<br>
><br>
> Infrastructure Services, eSolutions<br>
> Monash University<br>
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> Clayton VIC 3168<br>
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><br>
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</p>