[65823] in North American Network Operators' Group
Re: AS Path Loops in practice ?
daemon@ATHENA.MIT.EDU (Stephen J. Wilcox)
Thu Dec 11 18:07:48 2003
Date: Thu, 11 Dec 2003 23:07:03 +0000 (GMT)
From: "Stephen J. Wilcox" <steve@telecomplete.co.uk>
To: Leo Bicknell <bicknell@ufp.org>
Cc: nanog@merit.edu
In-Reply-To: <20031209145941.GC4428@ussenterprise.ufp.org>
Errors-To: owner-nanog-outgoing@merit.edu
> Most (all) large ISP's have a "customer ASN". This allows a customer
> to connect in multiple places, run BGP, and get something approximating
> real redundancy to that carrier. However, rather than allocate one
> ASN to each customer, all customers use the same "customer ASN".
> Yes, that means they must default to the provider (and/or have the
> provider provide a default route) to reach the other customers using
> this technique.
Perhaps I'm missing something having not done this myself but why arent the
customers just using private ASNs? That would also remove the 'must default'
clause.
Steve
