[routing-wg]On BGP Communities

Dear Benoit,

is there a list of communities and what it's mean?

For example, community 12530:51020 means say to Golden Telecom not to
announce that prefix to C&W (see whois AS12530).

Some ISPs publish this info on RIPE DB (like AS12530), but is there a
place for publish these communities?

Often it is very useful to make some ISP to accept certain way to your
network, even if this ISP is in three-for hops from your upstream.

Benoit Donnet wrote:
> Dear RIPE Routing Working Group,
> 
> During the past years, we have seen an increasing usage of the BGP
> community attribute.  For instance, in a recent BGP table dump from
> routeviews, 99% of the routes stored by the router carries BGP communities.
> 
> In this context, we are currently working on a BGP community taxonomy,
> i.e., we want to classify and document communities according to their
> usage.  We describe our taxonomy on the following url:
> http://inl.info.ucl.ac.be/communities
> 
> Based on this taxonomy, we tried to collect as much as possible
> information on BGP communities.  This was a daunting task as we mainly
> relied on public database, such as whois server and ISP web sites.
> 
> Our current database of classified BGP communities currently contains
> more than 27,000 entries.
> 
> As researchers, we are now in the process of writing a paper on our work
> on BGP communities.
> 
> We plan to submit this paper to ACM SIGCOMM Computer Communication
> Review for the April issue.  This is an editorial paper (max. 4 pages).
> 
> You can find a preprint of the paper at the following URL:
> http://inl.info.ucl.ac.be/communities or directly at 
> http://inl.info.ucl.ac.be/system/files/communities.pdf
> 
> Any comments on the paper is welcome.
> 
> Thank you very much.
> 
> Keep on Rockin'
> 
> Dr. Benoit Donnet & Prof. Olivier Bonaventure
> 
> -- 
> Dr. Benoit Donnet
> Université Catholique de Louvain (UCL)
> Faculté des Sciences Appliquées - Département d'Ingénierie Informatique
> (INGI)
> Place Sainte Barbe, 2
> 1348 Louvain-la-Neuve
> Belgium
> Phone: +32 10 47 87 18
> Home page: http://inl.info.ucl.ac.be/donnet
> 
> 
> 


-- 
WBR,
Max Tulyev (MT6561-RIPE, 2:463/253 at FIDO)