nanog mailing list archives
Re: Shim6 vs PI addressing
From: Jared Mauch <jared () puck nether net>
Date: Thu, 2 Mar 2006 09:37:12 -0500
On Wed, Mar 01, 2006 at 03:01:22PM -0800, Owen DeLong wrote:
I think you're missing that some people do odd things with their IPs as well, like have one ASN and 35 different sites where they connect to their upstream Tier69.net all with the same ASN. This means that their 35 offices/sites will each need a /32, not one per the entire asn in the table.People who are doing that have not read the definition of the term ASN and there is no reason that the community or public policy should concern itself with supporting such violations of the RFCs. An AS is a collection of prefixes with a consistent and common routing policy. By definition, an AS must be a contiguous collection of prefixes or it is not properly a single AS. Using the same ASN to represent multiple AS is a clear violation. It doesn't fit the RFC definition of AS. Therefore, there is no reason to support such usage on a continuing basis. You violate the RFC's you takes your chances.
I guess all those root servers that use the same asn but connect to different networks (anycast) should get shut down quickly. This is a part of networking life today in the v4 space, and without any current changes, it will (is) the same in v6 routing as there is nothing different except a few more bits 32 => 128. No new routing protocol, nothing, except this shim6 thing which people don't seem interested in because it means network operators can't do the traffic engineering they need to. - jared -- Jared Mauch | pgp key available via finger from jared () puck nether net clue++; | http://puck.nether.net/~jared/ My statements are only mine.
Current thread:
- Re: Shim6 vs PI addressing, (continued)
- Re: Shim6 vs PI addressing Jeroen Massar (Mar 02)
- Re: Shim6 vs PI addressing Owen DeLong (Mar 02)
- Re: Shim6 vs PI addressing Jeroen Massar (Mar 02)
- Re: Shim6 vs PI addressing Owen DeLong (Mar 02)
- Re: Shim6 vs PI addressing Mark Newton (Mar 02)
- Notes on design of IPv6 BGP multihoming with special subroute attributes (was - Re: Shim6 vs PI addressing) william(at)elan.net (Mar 02)
- Re: Notes on design of IPv6 BGP multihoming with special subroute attributes (was - Re: Shim6 vs PI addressing) Iljitsch van Beijnum (Mar 02)
- Re: Notes on design of IPv6 BGP multihoming with special subroute attributes (was - Re: Shim6 vs PI addressing) william(at)elan.net (Mar 02)
- Re: Shim6 vs PI addressing Jared Mauch (Mar 01)
- Re: Shim6 vs PI addressing Owen DeLong (Mar 01)
- Re: Shim6 vs PI addressing Jared Mauch (Mar 02)
- Re: Shim6 vs PI addressing Owen DeLong (Mar 02)
- Re: Shim6 vs PI addressing David Barak (Mar 02)
- Re: Shim6 vs PI addressing Iljitsch van Beijnum (Mar 01)
- Re: Shim6 vs PI addressing David Barak (Mar 01)
- Re: Shim6 vs PI addressing Todd Vierling (Mar 03)
- Re: Shim6 vs PI addressing Stephen Sprunk (Mar 03)
- Re: Shim6 vs PI addressing Stephen Sprunk (Mar 03)
- Re: Shim6 vs PI addressing Roland Dobbins (Mar 03)
- Re: Shim6 vs PI addressing Andy Davidson (Mar 06)