/24 multihoming issue

Thu Oct 20 06:39:09 UTC 2005

I got an answer for my question.
7018/ATT does ACCEPT /24 routes from 701/mci.
e.g
24.143.13.0/24 on route-server.ip.att.net
has AS-PATH (7018 701 13368). 

Is 7018 preferring 19094 over 701 regardless of
AS-PATH length? Or, 7018 will not take prefixes from
other peers if a particular prefix is coming from
19094 regardless of AS-PATH?

** 7018 is just an example. There a quite a few ISP
with the same behavior.

Well .. I'm still in the maze.

--- Kyaw Khine <joekhine at yahoo.com> wrote:

> Says .. I pick 7018/AT&T.
> 7018 is accepting 701/mci customer routes. But is
> 7018
> accepting 701/mci customer /24 routes ???
> 7018 is definitely accepting 19094/telcove /24
> routes
> because I see 64.9.17.0/24 on ATT route-server
> (route-server.ip.att.net)
> 
> So, why is 7018 receiving/accepting /24 from some
> peers (19094) but not from others (701)???
> 
> That .. I can't figure out.
> 
> 
> 
> 	
> 		
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