From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qt1-x829.google.com (mail-qt1-x829.google.com [IPv6:2607:f8b0:4864:20::829]) (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 70C823B29D for ; Wed, 30 Jun 2021 19:56:43 -0400 (EDT) Received: by mail-qt1-x829.google.com with SMTP id w13so2933410qtc.0 for ; Wed, 30 Jun 2021 16:56:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=forwardingplane-net.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=Rn59xs9kA3F/E7KTLb76K+dfQkZuGDFIEng/J9kANiE=; b=SKFQxxz8T5znc5Hw2KUjdqVtz8SxOY4djkspXKUgOqyD5FQ5g6kiw3s2pvAZp2jDAX RkcljNaKu36KUydGqEvsbiGuFWwpN7f1qyDf/11mG3DJb6+S8w77/FLnav85sg5pUZD4 ujv7NVR+YXVGHvshYDC3n0q9xy5ZE4zbvh6v16RuG5RTYW0e4BJZA63fyTY1GCGi/gUq T9A+VrF7bnEbSZiUj8olKV4SLAdKhnMh67hzxpHd2YQYXybaxpHH/ze33+c8Eu6T6gmB iBr5z5wkGoJX9XwPGkkP+uZQLQBBEh9YCV4tkhvw+3+5rDZqq6ls1lgQD/b9vU0gplJo +tDQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=Rn59xs9kA3F/E7KTLb76K+dfQkZuGDFIEng/J9kANiE=; b=XDJYM+LSsK58IQm0J3dj5OD8KsIRizEc9h6b2v7GWnvon9qdltgCKtIN/Fty5i7eAa Y9NosphUAGXxd8XVBYKwgV+HaUqNBMo/xkRAQd/TzI/2VmuPHBd4TJL4bTByGFuhYLMh uR7VTTTh9pyvmR6LguBmaL1fvsGbkUA9Z5fACYRMDwGseIrKExuu+hMXy/CfFSzh3mTt 7LTk/WB8XBopjDcF0sJ4ungdbHpebhRTVS6lgw7muRVHkhXYfuKaDgxszC7+qA4n/7Af Ctcec4ZymfBeCDoyl4IrJFSg5gKyooo4vfe4d4kWvxAWcZ9KAZbhPGuHM1x57H/MRvuf gQxg== X-Gm-Message-State: AOAM53308JuUvR+8diYPM1Pep6BaCC+SB9rO3UAQ80dM7cW491cq7stm YlspJ+QHEvEYIxJRNlpljb1ecyBdp5GfH3HNQ0qd1/ztKspFnw== X-Google-Smtp-Source: ABdhPJyqUYpGSqiobHw3Xcg0BJhdu5v1wLKb2yHt3bmfq/NrpXJxWwY32wrf0Ik8Js4GMSsgHto2levtO0zDvFNE1yg= X-Received: by 2002:ac8:670f:: with SMTP id e15mr34352046qtp.291.1625097402667; Wed, 30 Jun 2021 16:56:42 -0700 (PDT) MIME-Version: 1.0 References: <85542036-9ff8-75d2-438e-c86cc0c105d8@sokolov.eu.org> <20487.1625064183@localhost> In-Reply-To: <20487.1625064183@localhost> From: Nick Buraglio Date: Wed, 30 Jun 2021 18:56:32 -0500 Message-ID: To: Michael Richardson Cc: Dave Taht , starlink@lists.bufferbloat.net Content-Type: multipart/alternative; boundary="00000000000069698405c6047953" Subject: Re: [Starlink] routing capability in starlinks 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: Wed, 30 Jun 2021 23:56:43 -0000 --00000000000069698405c6047953 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable It=E2=80=99s reasonable to think that it=E2=80=99s segment routed in some w= ay, the advantages there are numerous and pretty clear. It would give them the significant advantage of being able to leverage a PCE controller architecture and provide a lot of LFA options for resiliency. My money would be there, either SR-MPLS or SRv6. Not a lot of options for SRv6 at this time (some ur not many). It=E2=80=99s= not outside the realm of possibilities by any stretch of the imagination. nb On Wed, Jun 30, 2021 at 6:35 PM Michael Richardson wrote: > > Dave Taht wrote: > > going village to village on the same sat would save a ton of backha= ul > > bandwidth and offer less latency for things like phone calls. The C= GN > > (dang it) looks doomed to backhaul somewhere, but perhaps the ipv6 > > stuff? > > As well as resiliency, and perhaps legal protection against NSL. > > > I imagine they do it at the l2 protocol and program the next hop(s) > on > > the ground, but we do live in an age where everything is centralize= d > > "Simpler than IPv6" is all we ever got. > I think that it's MPLS or SR6 based upon some commodity fabric, with SDN = to > create the paths. > > > (for those that don=E2=80=99t know, I=E2=80=99ve been working on di= stance-vector > > routing protocols for decades, most of my work on that front for th= e > > last decade has been focused on making the babel routing protocol > scale > > better than bgp does for meshy links ) > > -- > Michael Richardson . o O ( IPv6 I=C3=B8T consul= ting ) > Sandelman Software Works Inc, Ottawa and Worldwide > > > > > _______________________________________________ > Starlink mailing list > Starlink@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/starlink > --00000000000069698405c6047953 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
It=E2=80=99s reasonable to think that it=E2=80=99s segmen= t routed in some way, the advantages there are numerous and pretty clear. I= t would give them the significant advantage of being able to leverage a PCE= controller architecture and provide a lot of LFA options for resiliency. M= y money would be there, either SR-MPLS or SRv6.=C2=A0
Not a lot of options for SRv6 at this time (some ur not many). It=E2=80= =99s not outside the realm of possibilities by any stretch of the imaginati= on.=C2=A0

nb
<= br>
On Wed,= Jun 30, 2021 at 6:35 PM Michael Richardson <mcr+ietf@sandelman.ca> wrote:

Dave Taht <davet= @teklibre.net> wrote:
=C2=A0 =C2=A0 > going village to village on the same sat would save a to= n of backhaul
=C2=A0 =C2=A0 > bandwidth and offer less latency for things like phone c= alls. The CGN
=C2=A0 =C2=A0 > (dang it) looks doomed to backhaul somewhere, but perhap= s the ipv6
=C2=A0 =C2=A0 > stuff?

As well as resiliency, and perhaps legal protection against NSL.

=C2=A0 =C2=A0 > I imagine they do it at the l2 protocol and program the = next hop(s) on
=C2=A0 =C2=A0 > the ground, but we do live in an age where everything is= centralized

"Simpler than IPv6" is all we ever got.
I think that it's MPLS or SR6 based upon some commodity fabric, with SD= N to
create the paths.

=C2=A0 =C2=A0 > (for those that don=E2=80=99t know, I=E2=80=99ve been wo= rking on distance-vector
=C2=A0 =C2=A0 > routing protocols for decades, most of my work on that f= ront for the
=C2=A0 =C2=A0 > last decade has been focused on making the babel routing= protocol scale
=C2=A0 =C2=A0 > better than bgp does for meshy links )

--
Michael Richardson <mcr+IETF@sandelman.ca>=C2=A0 =C2=A0. o O ( IPv6 I=C3=B8T co= nsulting )
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Sandelman Software Works Inc, Otta= wa and Worldwide




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