[65835] in North American Network Operators' Group

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Re: AS Path Loops in practice ?

daemon@ATHENA.MIT.EDU (David Barak)
Fri Dec 12 10:40:02 2003

Date: Fri, 12 Dec 2003 07:36:22 -0800 (PST)
From: David Barak <thegameiam@yahoo.com>
To: nanog@merit.edu
In-Reply-To: <Pine.LNX.4.44.0312121107580.1055-100000@server2.tcw.telecomplete.net>
Errors-To: owner-nanog-outgoing@merit.edu



--- "Stephen J. Wilcox" <steve@telecomplete.co.uk>
wrote:
> > 3) One advantage of using a public, albeit common,
> customer ASN is that if a
> > customer has RIR-allocated space, those IPs will
> make it onto the global
> > table, and will not suffer the filtering which may
> be present for the
> > provider's own routes.
> 
> Ok this seems to be a difference, altho not sure why
> the custs IPs should need 
> to do anything different from the providers IPs as
> presumably both need to be 
> reachable from everywhere?
> 

There are providers out there who treat $PEER
differently from $CUSTOMER_OF_PEER, with regard to
aggregation etc.

Also, I believe that there used to be providers who
would dampen routes on a per-AS basis, rather than on
a per-route basis.  I am not sure whether anyone still
does this.




=====
David Barak
-fully RFC 1925 compliant-

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