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Re: [homenet] dst/src routing drafts (for IETF-91 rtgwg)

"Fred Baker (fred)" <fred@cisco.com> Wed, 29 October 2014 06:50 UTC

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From: "Fred Baker (fred)" <fred@cisco.com>
To: David Lamparter <equinox@diac24.net>
Thread-Topic: [homenet] dst/src routing drafts (for IETF-91 rtgwg)
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Date: Wed, 29 Oct 2014 06:50:17 +0000
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References: <20141020204033.GD236844@jupiter.n2.diac24.net> <20141022190653.GB868521@jupiter.n2.diac24.net> <DFE4317C-E4B6-44AB-AED4-2FBBBD2888DA@cisco.com> <B445E8FD-13EE-4014-8D1C-7C9D4A188D2D@cisco.com> <544FF3F2.3050206@gmail.com> <20141029062837.GH5186@eidolon>
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Cc: Ole Troan <ot@cisco.com>, "homenet@ietf.org" <homenet@ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>, Mikael Abrahamsson <swmike@swm.pp.se>
Subject: Re: [homenet] dst/src routing drafts (for IETF-91 rtgwg)
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On Oct 28, 2014, at 11:28 PM, David Lamparter <equinox@diac24.net> wrote:

> What I'm personally wondering most in this regard is: to what extent
> will larger networks deploy multiple prefixes to the hosts?

Well, define “larger”. Any network that gets a PI prefix is unlikely to deploy multiple prefixes. The question is at what size network is makes sense to obtain an AS number and a PI prefix, and use BGP to talk with one’s upstream. Wherever that boundary is, below that networks will use PA prefixes. The question then becomes: will they multi home?

And I think the answer today is that we don’t know the answer.

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