From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lf1-x12a.google.com (mail-lf1-x12a.google.com [IPv6:2a00:1450:4864:20::12a]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 227B03B2A4 for ; Thu, 18 Jan 2024 07:44:34 -0500 (EST) Received: by mail-lf1-x12a.google.com with SMTP id 2adb3069b0e04-50f11e3ba3aso1094729e87.1 for ; Thu, 18 Jan 2024 04:44:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1705581873; x=1706186673; darn=lists.bufferbloat.net; h=mime-version:subject:references:in-reply-to:message-id:to:from:date :from:to:cc:subject:date:message-id:reply-to; bh=5cRZ9D/hKKvNU6O/kUsJ44dmQJXyS7G4Xtx7ClafHm4=; b=HOqBoDVLywgbNicex/c80mExvmsv/P7WyNH69SBM9NxcefMF293THHjoxECO8DIDj8 +6yAQrCMXCYt9rQ7TBZslwkzlk7dO6xuuy00jkDlH/alYICI6QHL8JD+LrL87ODwmTN/ NKsj/qme7lpiTMmYbW0Z7/2SxnnaUH1i6svaROzjibYF+anT1jzSy9S8QUyBERJrdTDY WDA6hgB6fzZOZuTyGu9hVwtIVaLXItp2+31KoLhRL+ZmEHbKExVhlG+jqh51lMoHgyZe f6wKlOtV4/iXiScxwn6w792JljJt2/dJZSGzFSYCf64nfecSseXnhiaOFTZ7FoL/o7Av miwg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1705581873; x=1706186673; h=mime-version:subject:references:in-reply-to:message-id:to:from:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=5cRZ9D/hKKvNU6O/kUsJ44dmQJXyS7G4Xtx7ClafHm4=; b=dCggvFIpdnmWOuqYF81F8ImAIH6fNaIWKmQoQ7j2rIvihZ7Mw8VoSEj4SvGQkF4VjK kMeh5FI568GNB+OgWd9oZ+sjgTq3Jh89uqZLBmhOtQ/s1GW3kPuwmqrt8waYtTH2En8U KBvf/xtpBd4h8z+W+vIr3Um6jBGkSd/bHks+QsDW/EAmp1JFljHKEOOJwV6FMcvaLnfw jKdHSrFIaOmg5vBO+vkop31OQGQ/ZoawICtomzQbvuQ3fGVij0s3AR3uI9K/f0MY6O+X UgslGLiqN2qRYCjF1vg2M0jS3Ao9wmZqfBrsEGBnlHkbSZlW/9cBDbP//hiMziLtqOBk VeBg== X-Gm-Message-State: AOJu0Ywmkn/5mEwBKAuOG5qpqtp+96Nqv25n5MQ8M5FP8FkgDjilVbCF fjKKtXQRPoBgE2e9wIAJnto0XYeHjGB6WjsZU0XkppGS0K7SMPKb X-Google-Smtp-Source: AGHT+IGs4dZyDCTAIoteNkDKOHMiZrkJUYnTfAUbZMYOXTIUqi5qqcly/xe+7H8ystS4nlCpGx35vg== X-Received: by 2002:a05:6512:370b:b0:50e:936b:a466 with SMTP id z11-20020a056512370b00b0050e936ba466mr458167lfr.90.1705581872390; Thu, 18 Jan 2024 04:44:32 -0800 (PST) Received: from [127.0.0.1] ([105.116.0.253]) by smtp.gmail.com with ESMTPSA id t6-20020a05600c198600b0040e48abec33sm29540462wmq.45.2024.01.18.04.44.30 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 18 Jan 2024 04:44:31 -0800 (PST) Date: Thu, 18 Jan 2024 13:44:22 +0100 (GMT+01:00) From: Inemesit Affia To: Alexandre Petrescu , Dave Taht via Starlink Message-ID: <7a3dd863-6df3-456a-a4de-4cb4a8cfda9e@gmail.com> In-Reply-To: <47b6b36e-a1cc-4c8a-ae46-5009b2e0ba69@gmail.com> References: <240cc234-0ec7-49c1-be61-1e279cdd07c8@gmail.com> <6de77fa5-ecbb-4f77-88dd-0cff58f55229@gmail.com> <0517e029-234d-488a-873e-da8a82c4cf09@gmail.com> <871B287A-9174-4C11-9231-F1757B9E1235@viagenie.ca> <27747880-2222-497d-923d-65bb560be41e@gmail.com> <99959931-2769-4c64-a2ea-f9fe84daac20@gmail.com> <47b6b36e-a1cc-4c8a-ae46-5009b2e0ba69@gmail.com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_2_184353005.1705581864283" X-Correlation-ID: <7a3dd863-6df3-456a-a4de-4cb4a8cfda9e@gmail.com> Subject: Re: [Starlink] community gateways X-BeenThere: starlink@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: "Starlink has bufferbloat. Bad." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 18 Jan 2024 12:44:34 -0000 ------=_Part_2_184353005.1705581864283 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable This is Ka Band. Not Ku SLA is basically a guarantee from the provider that a particular level of s= ervice will be met. Failure means penalties. There's a single community gateway in Unalaska. The customer is Optimera. Jan 18, 2024 10:17:34 AM Alexandre Petrescu via Starlink : >=20 > Le 17/01/2024 =C3=A0 21:57, Inemesit Affia via Starlink a =C3=A9crit=C2= =A0: >> I don't think the idea of advertising with the association of fiber is o= nly about latency. >>=20 >> Think "symmetrical link" which isn't common even for Enterprise satcom. > IT is true.=C2=A0 That symmetrical aspect - upload speed similar to downl= oad bandwidth, compared to a higher ratio ul/dl - is a great benefit in fib= er and ADSL for home users.=C2=A0 Maybe the latency ratio could also be con= sidered. >>=20 >>=20 >> Also the SLA. Wonder if we can test this link somehow. How performant is= it vs the Ku Band service? Anyone has a connection to the customer? >=20 > I suppose it is not yet possible to compare the SLA of starlink Community= gateways, since the starlink Community gateways seem not to be deployed al= ready.=C2=A0 But I dont really know. >=20 > Alex >=20 > PS: >=20 > I am not sure what you mean by the SLA aspect (service-level agreement).= =C2=A0 Maybe you mean a form of higher reliability and stability of the use= r link. >=20 > Ku band (12GHz-18GHz) is what typical starlink uses to end users. >=20 > Starlink Community gateways might also use Ku band, I think. However, the= photos show these spheres of 'teleports' which probably use something high= er than Ku.=C2=A0 I dont know what freqs these teleports use; and dont know= either whether the Community gateways will use that Ku, or use the D-band = (120-170GHz) recently reserved by 'ESSAFI II for starlink at ITU. >=20 > Then there is this Starlink Direct which promisses data (maybe higher ban= dwidths?) to unmodified smartphone users in year 2025, which might also be = used for communities, albeit much smaller ('tethering' WiFi technology).=C2= =A0 That is at 2.6 or 3.6 GHz (unmodified smartphones). >=20 > JIOSpace fiber seems to be at MEO altitudes and also for unmodified smart= phones,, hence around 2.6 or 3.6GHz. >=20 > Do you think the 'SLA' of smartphones is high? >=20 >=20 >>=20 >>=20 >> _______________________________________________ >> Starlink mailing list >> Starlink@lists.bufferbloat.net >> https://lists.bufferbloat.net/listinfo/starlink > _______________________________________________ > Starlink mailing list > Starlink@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/starlink ------=_Part_2_184353005.1705581864283 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable This is Ka Ban= d. Not Ku

SLA is bas= ically a guarantee from the provider that a particular level of service wil= l be met. Failure means penalties.

There's a = single community gateway in Unalaska. The customer is Optimera.

Jan 18, 2024 10:17:34 AM Alexandre Petrescu via Starlink <starlin= k@lists.bufferbloat.net>:


Le 17/01/2024 =C3=A0 21:57, Inemesit Affia via Starlink a =C3=A9crit&= nbsp;:=20
I don't think the idea of advertising with the association of fiber i= s only about latency.=20

Think "symmetrical link" which isn't common even for Enterprise satc= om.=20
IT is true.  That symmetrical aspect - upload speed = similar to download bandwidth, compared to a higher ratio ul/dl - is a grea= t benefit in fiber and ADSL for home users.  Maybe the latency ratio c= ould also be considered.=20


Also the SLA. Wonder if we can test this link somehow. How performan= t is it vs the Ku Band service? Anyone has a connection to the customer?=20

I suppose it is not yet possible to compare the SLA of starlink Commu= nity gateways, since the starlink Community gateways seem not to be deploye= d already.  But I dont really know.=20

Alex=20

PS:=20

I am not sure what you mean by the SLA aspect (service-level agreemen= t).  Maybe you mean a form of higher reliability and stability of the = user link.=20

Ku band (12GHz-18GHz) is what typical starlink uses to end users.=20

Starlink Community gateways might also use Ku band, I think. However,= the photos show these spheres of 'teleports' which probably use something = higher than Ku.  I dont know what freqs these teleports use; and dont = know either whether the Community gateways will use that Ku, or use the D-b= and (120-170GHz) recently reserved by 'ESSAFI II for starlink at ITU.=20

Then there is this Starlink Direct which promisses data (maybe higher= bandwidths?) to unmodified smartphone users in year 2025, which might also= be used for communities, albeit much smaller ('tethering' WiFi technology)= .  That is at 2.6 or 3.6 GHz (unmodified smartphones).=20

JIOSpace fiber seems to be at MEO altitudes and also for unmodified s= martphones,, hence around 2.6 or 3.6GHz.=20

Do you think the 'SLA' of smartphones is high?=20




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