[routing-wg]On BGP Communities

Hello Max,

Thanks for your interest in our work.

> Dear Benoit,
>
> is there a list of communities and what it's mean?

The answer is yes.

The list of communities we used in our work is freely available at  
the following URL: http://inl.info.ucl.ac.be/system/files/ 
CommunityTaxonomy-DataBase.xml_.gz

This list is documented following our taxonomy.

This is presented as an XML file.

The next step in our work would be to propose to the community an on- 
line database that could be queried by anyone to get information on  
BGP communities.  This database should also allow ISPs to document  
their own communities.

Keep on Rockin'

Benoit

>
> 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)
>

--
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