[172783] in North American Network Operators' Group
Re: Listing or google map of peering exchange
daemon@ATHENA.MIT.EDU (Patrick W. Gilmore)
Wed Jul 9 16:15:26 2014
X-Original-To: nanog@nanog.org
From: "Patrick W. Gilmore" <patrick@ianai.net>
In-Reply-To: <460F19B3-60EA-4961-825C-0AA98765E037@pch.net>
Date: Wed, 9 Jul 2014 16:15:15 -0400
To: NANOG list <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
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On Jul 09, 2014, at 16:03 , Bill Woodcock <woody@pch.net> wrote:
> On Jul 9, 2014, at 12:46 PM, Patrick W. Gilmore <patrick@ianai.net> =
wrote:
>> Taking just Seattle IX (since I have a personal interest there :), it =
says "177" under =93participants"
>=20
> Interesting. We pull automatically from the standard URL, =
https://www.seattleix.net/participants/table but have to try to uniq it =
to not double-count organizations that are peering under multiple ASNs, =
who are peering on multiple subnets, etc. Because we=92re doing that =
400 times per day, it=92s all automated with rulesets and a whole lot of =
exceptions (knowing that AS 701, 702, 703 are the same organization, =
etc.).
>=20
> The SIX is reporting 194 unique ASNs and 195 unique organization =
names. Presumably we have some rules that are detecting that AS42 and =
AS3856, for instance, are the same organization and consolidating those. =
I=92ll have our IXPdir maintenance staff take a look at where the =
differences lie, and whether any of those rules need to be updated.
Is that a good idea?
For instance, if I were stupid enough to peer with as3856 and not with =
as42 (because not peering with either of those is idiotic :), would I =
get the same data as peering with both?
It is absolutely true that if I peer with as702, I do _not_ get the same =
prefixes as peering with as701. Just because one is a downstream of the =
other does not mean they are separate (from BGP's PoV).
--=20
TTFN,
patrick
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