Fwd: Re: IPv6 addresses for Exchange Points

[Fearghas McKay <]

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Delivered-To: lists-lir-wg-out@localhost
Date: Mon, 7 May 2001 17:51:56 +0200
From: Gert Doering gert@localhost
To: Mirjam Kuehne mir@localhost
Cc: lir-wg@localhost
Subject: Re: IPv6 addresses for Exchange Points
X-NCC-RegID: de.space
Sender: owner-lir-wg@localhost

Hi,

On Mon, May 07, 2001 at 05:35:11PM +0200, Mirjam Kuehne wrote:
>  An Internet Exchange Point was defined as follows:
>
>  3 or more ASes and 3 or more separate entities attached to a LAN (the
>  same infrastructure) for the purpose of peering and more are welcome
>  to join.
I suggest to change the wording to "a common layer 2 infrastructure"
- an exchange point might be some distributed thing peering over an
ATM/FR cloud or a SRP/DTP ring, which isn't really a "LAN".  Policy
should not be tied to special implementation techniques.

Besides this, I like the proposal.

As discussed with a few people after the WG, it *does* pose the risk of
handing out "lots and lots" of /48s and /64s to people claiming to be
an exchange point.  (It's not that hard to get three ASes together
over "some" medium).

On the other hand: if we reserve a /35 for that, we have 2^13 /48's
to hand out to "would-be IXes".  So the danger of address wastage
is not too big.

The danger of routing deaggregation *is*...

So I'd suggest another thing: add to this a big warning that this
space is not "PI" (whatever that means) and that it is very likely that
it will never be routeable world-wide.  This should stop people wanting
to use such space for something different than an exchange point from
applying for it.

Gert Doering
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