[114394] in North American Network Operators' Group
Re: ASPATH Loop
daemon@ATHENA.MIT.EDU (Nathan Ward)
Sun May 10 12:28:19 2009
From: Nathan Ward <nanog@daork.net>
To: nanog list <nanog@nanog.org>
In-Reply-To: <10fbbf5a0905100351p1663830aq78b2f82f836ad54c@mail.gmail.com>
Date: Sun, 10 May 2009 22:59:31 +1200
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On 10/05/2009, at 10:51 PM, yangyang. wang wrote:
> As we know, BGP instance running on routers don't allow loop in
> ASPATH, why they can be seen in RIBs? It's some particular technical
> configuration in practice? OR What's wrong with AS3130??
Look at the WHOIS entry for AS3130, and notice in the comments field:
http://psg.com/as3130/
"Regarding strange announcements by AS 3130 of prefixes in
98.128.0.0/16" is in the big headings on the top of that page.
He is no doubt announcing it with an origin AS of 3130 so no person or
router complains about inconsistent origins.
--
Nathan Ward
