[Starlink] Starlink ISL data

[David Fernández]

I thought Starlink was not supporting IPv6, because of this:

https://twitter.com/elonmusk/status/967712110661615616

> Date: Sun, 26 Mar 2023 19:32:31 -0700
> From: Dave Taht <dave.taht at gmail.com>
> To: Dave Taht via Starlink <starlink at lists.bufferbloat.net>
> Subject: Re: [Starlink] Starlink ISL data
> Message-ID:
> 	<CAA93jw4kcfXiwMw0zKAuQV3BjpWp6ZvQ2TQFbtEy9CFRN5aY2w at mail.gmail.com>
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>
> Nate gave me the opportunity to test a bit of ipv6 access on one of
> his dishys today. I am going to give p2p a shot, also, and he
> conveniently has bbr2 installed. It is of course difficult to discern
> the difference between transport behaviors and their underlying
> connectivity - for example the BBR2 result attached has a baseline
> (idle!) latency jump of over 40ms which is hard to explain.
>
> Despite these plots saying downloads, they were essentially uploads
> from his box over the internet.
>
> The summary of the data I have so far on this direction is:
>
> Cubic, looks like cubic, usually, but not always. BBR rarely looks like BBR.
>
> On Fri, Mar 24, 2023 at 2:46 PM Dave Taht <dave.taht at gmail.com> wrote:
>>
>> Vint just asked me a difficult question over here about the
>> performance of the ISL links for my upcoming AMA next week
>>
>> https://twitter.com/mtaht/status/1639361656106156032
>>
>> And to date, we really don't know. We do know it is up!? but...
>>
>> has anyone managed to measure p2p ipv6 performance starlink to
>> starlink over an ISL link as yet? Do we know anyone at the poles? In
>> general I always look for flent and irtt data, but I'd settle for a,
>> oh, call it 5-10 minute long packet capture of single iperf flow,
>> running over tcp cubic (bbr would be great too).... one test in each
>> direction.
>>
>> (in fact that would be great from any starlink terminal to any of my
>> servers around the world)
>>
>> I have some data from a couple of you (thx ulrich in particular!), but
>> I have not sat down to take it apart as I have been far, far too busy
>> with libreqos and a bunch of nice, small, competent ISPs deploying
>> that, to worry about fixing a billionaire's network all that much....
>> but I've set aside next week to answer AMAs about everything from all
>> and sundry, so if you got data, please share?
>>
>> --
>> Come Heckle Mar 6-9 at: https://www.understandinglatency.com/
>> Dave Täht CEO, TekLibre, LLC
>
>
>
> --
> https://www.youtube.com/watch?v=tAVwmUG21OY&t=6483s
> Dave Täht CEO, TekLibre, LLC
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