[Starlink] Portability Now Available (fwd)

Fri May 6 05:17:23 EDT 2022

To your specific question, I was not running traffic during this test, but I have in a previous one, and I can say that up to 100Mbps in downlink the data rate is stable, above that you start seeing bursts and buffering. Will post more results after the weekend (flying back to Barcelona right now).

I do various things with this setup:

• I read the gRPC as fast as I can. Some items on it update quite fast, such as POP latency, others such as throughput once per second.
• I read power usage at about 4-5 Hz
• I read GPS at 1 Hz (also used for PPS sync)
• I can optionally run iPerf3 tests in either uplink, downlink, or both, with various target tput (using TCP for now, will add UDP)
• The data is stored on a local SQLite DB, and if there is a link, also gets sent to a logging server which is sat at the POP (literally, it’s in MAD, sub-millisecond away), so no delay from extra hops once out of the POP.
• All data sent to the server contains whatever is being read, plus the microsecond timestamp of the client, and a UUID that ties all readings to a particular logging run.
• The logging server adds its own microsecond timestamp to every record when received, so I can measure time delay between client packets, but also inter-packet delay between logger box and server.

I had to patch iPerf3 to add a —custom-uuid flag, to replace the random generated one, so I can match iperf tests to all the other data sources by a common uuid.

I have written some code to time-align the various data streams at different rates, but still working on visualization layer.

Best,

Mike
On May 6, 2022, 07:12 +0400, Dave Taht <dave.taht at gmail.com>, wrote:
> What are you using to drive the pop latency test?
>
> (i was using irtt client -i3ms -d1h fremont.starlink.taht.net)
>
> Is it a test of pure idle latency or do the spikes at (for example)
> t+12m42s represent simultaneous traffic?
>
> Is the peak of the graph there the actual peak, or not autoscaling to
> the actual peak?
>
> On Thu, May 5, 2022 at 7:42 PM Mike Puchol <mike at starlink.sx> wrote:
> >
> > I did a one hour drive test combined with a data logger (calling it LeoBox for now), posted it compressed into 15’
> >
> > https://youtu.be/UExU-_VHWjA
> >
> > Best,
> >
> > Mike
> > On May 6, 2022, 03:46 +0400, Larry Press <lpress at csudh.edu>, wrote:
> >
> > > In a week or two I'm going to take my dish out and drive around for a few hours
> >
> > Roaming in motion works -- see the updates at the end of this post:
> > https://circleid.com/posts/20220225-spacex-is-testing-starlink-roaming
> > But it's not yet officially supported.
> >
> > Elon Musk says it's working in Ukraine.
> >
> > Stationary roaming, portability, is now officially offered at extra cost and with some constraints:
> > https://support.starlink.com/?topic=1426e78a-7384-0334-3fc0-ddf5a76d7afe
> >
> > Larry
> >
> > ________________________________
> > From: Starlink <starlink-bounces at lists.bufferbloat.net> on behalf of David Lang <david at lang.hm>
> > Sent: Thursday, May 5, 2022 2:21 AM
> > To: Ulrich Speidel <u.speidel at auckland.ac.nz>
> > Cc: starlink at lists.bufferbloat.net <starlink at lists.bufferbloat.net>
> > Subject: Re: [Starlink] Portability Now Available (fwd)
> >
> > remember that starlink is getting coverage from many satellites as they come
> > over, it's not like geostationary satellites that can aim specific antennas at
> > specific locations (i.e. 'spotbeams' are not a thing)
> >
> >
> > (just received the inverter I ordered, now to convert the plugs...)
> >
> > I expect the waitlist is a combination of two things.
> >
> > 1. the number of subscribers already in the area
> > 2. supply availability (I expect this is why Ukraine is a waitlist, they have
> > supplied dishes to the government, but if you try to order one yourself, you
> > would have to wait)
> >
> > David Lang
> >
> > On Thu, 5 May 2022, Ulrich Speidel wrote:
> >
> > > Date: Thu, 5 May 2022 19:40:01 +1200
> > > From: Ulrich Speidel <u.speidel at auckland.ac.nz>
> > > To: starlink at lists.bufferbloat.net
> > > Subject: Re: [Starlink] Portability Now Available (fwd)
> > >
> > > Cool. Very interesting! That's one pile of information all of a sudden. They
> > > could do that more often IMHO.
> > >
> > > Nothing like official confirmation that the tropics are an almost
> > > Starlink-free zone, and that places reasonably away from the 53rd parallels
> > > are secondary service zones. They forgot their 50-odd terminals in Tonga (I
> > > heard yesterday about someone in the northern islands who brought a dishy
> > > from overseas and found it didn't work... obviously believed the headlines...
> > > sigh).
> > >
> > > Also interesting that there seems to be, finally, some sort of disclosure on
> > > cell size. Someone will need to explain to me why there are waitlist areas in
> > > the Auckland area surrounded by full service. The areas concerned are rural,
> > > which you'd think they'd want to service with priority over our
> > > well-connected CBD... Too many subscribers there already, or not enough to
> > > warrant a spot beam? Similar soft spots near Sydney, holes in Foveaux Strait,
> > > the Hauraki Gulf, southeast of Murray Bridge in South Australia, southern
> > > Chile, ... What do I read into this? Two-fold: Where it's near 53 degrees,
> > > they're probably oversubscribed or lack terminal supply, or both. Where it's
> > > well away from 53 degrees, I'd guess they probably just lack satellite
> > > capacity full stop.
> > >
> > > Ukraine is waitlisted...? But wait - didn't Starlink just take over the
> > > Internet there? Interesting also that one of the waitlist / no service areas
> > > in Germany is right where they had the floods & where Starlink got deployed
> > > very publicly with (I understand) some success. Did the locals hang on to the
> > > emergency dishys and does this now saturate the network there? And what did
> > > the Greeks do to be all waitlisted?
> > >
> > > So what happens if you roam from a place with availability into a place with
> > > "waitlist" status? Anyone with a dishy up for a road trip with a story to
> > > tell?
> > >
> > > $25/month sounds steep but is probably modest in comparison to the roaming
> > > charges that some cellular providers charge.
> > >
> > > On 5/05/2022 7:00 pm, David Lang wrote:
> > > > received this Wednesday evening.
> > > > Makes sense,
> > > >
> > > > David Lang
> > > >
> > > > ---------- Forwarded message ----------
> > > > Portability Now Available
> > > >
> > > > Starlink is excited to announce Portability as an add-on feature for all
> > > > Starlink customers. Portability enables customers to temporarily move their
> > > > Starlink to new locations and receive high-speed internet anywhere where
> > > > Starlink provides active coverage within the same continent. To see active
> > > > coverage areas, please view the Starlink Availability Map (
> > > > https://urldefense.com/v3/__http://www.starlink.com/map__;!!P7nkOOY!sj8OeR4-Jc81zUlPLyHWjevs2T7WuFV5ewjaeOYg3m3H3_muO_XNGIDy3-WKuyifj4KWtvvwT-EHPQ$ <https://urldefense.com/v3/__http://www.starlink.com/map__;!!P7nkOOY!sj8OeR4-Jc81zUlPLyHWjevs2T7WuFV5ewjaeOYg3m3H3_muO_XNGIDy3-WKuyifj4KWtvvwT-EHPQ$ > ).
> > > >
> > > > You can enable Portability for $25/month on your account page (
> > > > https://urldefense.com/v3/__https://starlink.com/account__;!!P7nkOOY!sj8OeR4-Jc81zUlPLyHWjevs2T7WuFV5ewjaeOYg3m3H3_muO_XNGIDy3-WKuyifj4KWtvus-BPS0Q$ <https://urldefense.com/v3/__https://starlink.com/account__;!!P7nkOOY!sj8OeR4-Jc81zUlPLyHWjevs2T7WuFV5ewjaeOYg3m3H3_muO_XNGIDy3-WKuyifj4KWtvus-BPS0Q$ > ). Once
> > > > enabled, Portability will take effect immediately, and you can disable
> > > > Portability from your account page at any time.
> > > >
> > > > To learn more about Starlink Portability, please read our FAQ page (
> > > > https://urldefense.com/v3/__http://www.starlink.com/faq__;!!P7nkOOY!sj8OeR4-Jc81zUlPLyHWjevs2T7WuFV5ewjaeOYg3m3H3_muO_XNGIDy3-WKuyifj4KWtvsNiQtW4A$ <https://urldefense.com/v3/__http://www.starlink.com/faq__;!!P7nkOOY!sj8OeR4-Jc81zUlPLyHWjevs2T7WuFV5ewjaeOYg3m3H3_muO_XNGIDy3-WKuyifj4KWtvsNiQtW4A$ > ).
> > > > _______________________________________________
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> > >
> > >
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>
> --
> FQ World Domination pending: https://blog.cerowrt.org/post/state_of_fq_codel/
> Dave Täht CEO, TekLibre, LLC
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