[94188] in North American Network Operators' Group
RE: 4 Byte AS tested
daemon@ATHENA.MIT.EDU (Geoff Huston)
Thu Jan 11 18:24:50 2007
Date: Fri, 12 Jan 2007 10:10:05 +1100
To: "Anderson, Matthew R [NTK]" <Matt.R.Anderson@sprint.com>,
"MAEMURA Akinori" <maem@maem.org>, <randy@psg.com>
From: Geoff Huston <gih@apnic.net>
Cc: <nanog@merit.edu>
In-Reply-To: <4EBA591851FDE644A0BAAF9CF389A38E02244BF1@PLSWB06C.ad.sprin
t.com>
Errors-To: owner-nanog@merit.edu
At 09:33 AM 12/01/2007, Anderson, Matthew R [NTK] wrote:
>One test case I would like to see is alternating 2- and 4-byte ASNs
>in the path. This may be harder. E.g., AS_PATH = 1239 23456 1221
>23456 23456 23456. Or how about an AS_PATH including the 4-byte ASN
>placeholder (23456) whose origin is a 2-byte OLD speaker? E.g.,
>AS_PATH = 1239 23456 1221 23456 23456 23456 12234.
I've done a number of small scale permutations with BGP
configurations, but larger tests of the form you describe here will
need some more willing participants, particularly if we are
interested in doing this in the context of the Internet itself rather
than in a collection of small scale ebgp peerings.
Geoff
