[ppml] Proposed Policy: 4-Byte AS Number Policy Proposal

Jeroen Massar jeroen at unfix.org
Mon Dec 12 13:36:14 EST 2005

Andrew Dul wrote:
>>  -------Original Message-------
>>  From: william(at)elan.net <william at elan.net>
>>  On Mon, 12 Dec 2005, Andrew Dul wrote:
>>  > This is proposed as a temporary policy, which to me means that if the
>>  > policy is approved at some point it will automatically be removed from
>>  > the NPRM on 1/1/2010.  Which means we will then only have the current AS
>>  > number policy.  Does everyone feel that the current text will then be
>>  > sufficient in a 4 byte world?  Or do we need additional text to deal
>>  > with the new issues in a 4-byte world?
>>  What issues?
> Suppose I wanted, for some reason, an AS from the old 2-byte space.
> Could I request one?

With Geoff's policy proposal until 2010 you will be able to request
those, after that you won't be able to.

> Or maybe I wanted a 4-byte for another reason could I request one be
> allocated from that range?

After 2007 this proposal should be in effect and you should be able to
request one.

> Mostly I just asking the question, since moving to a 4-byte world
> seems to be a pretty big step and we should try and cover the various
> cases that are going to develop from this change.

It will be a big step indeed, this is why there is a timeframe in the
document to give a clear transitional timeframe, but not a flagday (just
like IPv6 ;) Geoff has run quite a lot of numbers on these subjects and
knowing his other work in this areas his projections are pretty
accurate. ASN's are already at ~40k and have been going out faster the
last couple of years. Moving to 4-byte ASN's will thus be mandatory.
Note also that the draft for the 4-byte ASN's notes that it will be
transparent to most players.

BTW: I support this proposal and would very much like to see this being
proposed to the other RIR's. Geoff, did you also push this in those
directions already? I either haven't seen it yet, though I could have
missed it.


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