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Re: Generic anycast addresses...

Sander Steffann <sander@steffann.nl> Tue, 04 June 2019 12:19 UTC

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From: Sander Steffann <sander@steffann.nl>
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Subject: Re: Generic anycast addresses...
Date: Tue, 04 Jun 2019 14:19:41 +0200
In-Reply-To: <625b5d9c-7532-4b5f-9e1a-b175092cac1c@gmail.com>
Cc: Michael Richardson <mcr+ietf@sandelman.ca>, Christian Huitema <huitema@huitema.net>, 6MAN <6man@ietf.org>
To: Brian E Carpenter <brian.e.carpenter@gmail.com>
References: <1DD451A7-D898-4105-974C-53776A3DA9F2@fugue.com> <20190530152902.l2nmyhadr4e4kt7x@faui48f.informatik.uni-erlangen.de> <0FF19D6D-1A45-41EF-BE34-CC35B5E51E1E@steffann.nl> <D91629F6-73AC-4A80-80EF-16644F73DA36@fugue.com> <701687d4-842c-6a16-3c97-349125324e3f@gmail.com> <D648647D-60E1-4DCE-B0BE-11002E0AE5A4@fugue.com> <25631.1559317738@localhost> <CAO42Z2x9iTrbvZuCxqSpDX-CQ9MtY8V1yyb-hg+XYtXXYn7LKg@mail.gmail.com> <9021.1559397908@localhost> <CAO42Z2xDUYOZqQ2_gjApifaPO3uG-kzjHpzND3nBD=hzw1TW2A@mail.gmail.com> <20190602130300.ebqbmvhb47r7pdog@faui48f.informatik.uni-erlangen.de> <CAO42Z2z9JkczxvYb09d4Fp7O17nnd0RHjPGnTaG26RPxPVa+Xw@mail.gmail.com> <alpine.DEB.2.20.1906030910010.19892@uplift.swm.pp.se> <19028.1559573360@localhost> <3d99d907-669e-46db-e68b-0a1bdf4a1f89@huitema.net> <18638.1559609425@localhost> <625b5d9c-7532-4b5f-9e1a-b175092cac1c@gmail.com>
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Hi Brian,

> If you think about it, shim6 was really an attempt to do this sort of thing
> at layer 3. I never thought of it that way, but shim6 to an anycast address
> could trigger an immediate address switch to a unicast address.
> 
> I'm not suggesting that this is a practical approach - but it's very close
> to a transport-independent solution.

It might be interesting to look at it again in this context. Who knows :)

Cheers,
Sander

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