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Re: BGP communities usage for route origin, entry point

  • From: Jared Mauch
  • Date: Wed Jun 19 12:44:18 2002

	Many providers document their communities
on webpages:

eg:
http://info.us.bb.verio.net/routing.html#communities
http://cw-rr.cw.net/community_receive.htm
http://cw-rr.cw.net/community_announce.htm

	you probally just need to find the uunet specific webpage
as it realtes to this.

	- jared

On Tue, Jun 18, 2002 at 08:13:50PM -0400, Thomas Kernen wrote:
> 
> 
> This started off as me being curious as to why a UUNet engineer I was
> talking to told me he could not understand why a network would support a
> feature such as BGP communities for identifying the origin of a
> route/network entry point. I tried to explain to him the advantage of being
> able to quickly identify where a route originates from (geographically),
> type of interconnect, type of "peer" (in this case I use peer for any BGP
> peer, customer or transit). I explained that it could be usefull for
> debugging and gaining more background info (route analysis is one of my
> favorite tasks) and some of the major and minor networks do provide such a
> feature/service.
> 
> Still the engineer could not understand why and only saw this as a security
> issue, well I guess when you work for a network that does not provide any
> public looking glass or route server it's not really a surprise </rant>
> 
> This triggered a thought, do many people actually use BGP communities to
> pinpoint a route origination point/type, and if so for what purpose
> (debugging, analysis, other)
> 
> Thomas
> 
> PS: If UUNet do actually support this feature please tell me who I should
> contact.

-- 
Jared Mauch  | pgp key available via finger from jared@puck.nether.net
clue++;      | http://puck.nether.net/~jared/  My statements are only mine.




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