[135007] in North American Network Operators' Group
Re: Single AS Number for multiple prefixes in different country
daemon@ATHENA.MIT.EDU (Patrick W. Gilmore)
Fri Jan 14 05:06:59 2011
From: "Patrick W. Gilmore" <patrick@ianai.net>
In-Reply-To: <AANLkTik9zCzP+rOGeC2SX84_PP3YYNkuzZCnBhb_LkVW@mail.gmail.com>
Date: Fri, 14 Jan 2011 05:06:55 -0500
To: NANOG list <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Jan 14, 2011, at 4:58 AM, Harris Hui wrote:
> We have an AS Number AS2XXXX and have 2 /24 subnets belongs to this AS
> Number. It is using in US and peering with US Service Providers now.
>=20
> We are going to deploy another site in Asia, can we use the same AS =
Number
> AS2XXXX and have 2 other /24 subnets and peering with other Asia =
Service
> Providers?
>=20
> Will it affect the routing or BGP Path of our existing subnets in US?
It will not. There was a thread on this a short while ago, check the =
archives.
The big question is whether the two sites will be able to talk to each =
other. There are ways to make that happen, but by default, a router in =
asXXXX will not accept eBGP announcements which include asXXXX (loop =
detection).
--=20
TTFN,
patrick
