Re: Listing or google map of peering exchange

["Patrick W. Gilmore" <patrick () ianai net>]

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 “participants"
>
> 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’re doing that 400 times per day, it’s all automated with rulesets and a whole lot of 
> exceptions (knowing that AS 701, 702, 703 are the same organization, etc.).
>
> 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’ll 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).

-- 
TTFN,
patrick

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