Re: ITU-T Dubai Meeting and IPv15

Donald Eastlake <d3e3e3@gmail.com> Sat, 11 August 2012 17:13 UTC

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From: Donald Eastlake <d3e3e3@gmail.com>
Date: Sat, 11 Aug 2012 13:13:01 -0400
Message-ID: <CAF4+nEEKjSpfyDGPaYeJE6XaG9u4GZPkW5eft94MVgyM3_hxMw@mail.gmail.com>
Subject: Re: ITU-T Dubai Meeting and IPv15
To: David Conrad <drc@virtualized.org>
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One problem with excessively large fields, including variable length
addresses with a high maximum length, is that the next time someone
wants to encode some additional information, they just tuck it inside
that field in some quasi-proprietary way, instead of going to the
trouble of actually adding a field. Witness X.509 Certificate "serial
numbers", which are arbitrary precision integers, but which frequently
are used for a variety of information, all BER encoded...

Thanks,
Donald
=============================
 Donald E. Eastlake 3rd   +1-508-333-2270 (cell)
 155 Beaver Street, Milford, MA 01757 USA
 d3e3e3@gmail.com


On Fri, Aug 10, 2012 at 1:35 PM, David Conrad <drc@virtualized.org> wrote:
> On Aug 10, 2012, at 10:22 AM, "Andrew G. Malis" <agmalis@gmail.com> wrote:
>> Another alternative is self-describing variable-length addresses,
>> again do it once and we'll never have to worry about it again.
>
> Heretic!  That's OSI speak!  Why do you hate the Internet you ISO/ITU lackey?!?
>
> </flashback>
>
> Yeah, variable-length addresses would have been nice. There was even working code. Maybe next IPng.
>
> Regards,
> -drc
>