Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00

"Fred Baker (fred)" <fred@cisco.com> Fri, 16 August 2013 21:12 UTC

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From: "Fred Baker (fred)" <fred@cisco.com>
To: "Antonio M. Moreiras" <moreiras@nic.br>, Alejandro Acosta <aacosta@rocketmail.com>
Thread-Topic: [v6ops] draft-moreiras-v6ops-rfc3849bis-00
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Date: Fri, 16 Aug 2013 21:12:31 +0000
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Cc: "v6ops@ietf.org WG" <v6ops@ietf.org>
Subject: Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00
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Dumb question.

I wonder if there is a less expensive way to go about this. By expensive, I mean "choke. you want a /20?". It has been argued that we need something that is shorter than a /32, and that we need something for ULAs. Whatever we do, it needs to be consistent with class examples that need to get typed into operational equipment. There's a lot more that has been said, but that's what I draw out of it.

What if we shortened 2001:db8::/32 to 2001:db8::/29? I note that the prefix doesn't show up in ftp://ftp.ripe.net/ripe/stats/delegated-ripencc-latest, and the IANA counterpart mentions it only in a footnote.

We could also delegate fc00:db8::/29, or something longer (/44 perhaps, allowing for the description of several ULA prefixes in documentation but not chewing up as much address space), by the same logic.

I see the argument, but not for the size requested.