[184030] in North American Network Operators' Group
Re: Service Providers behaviour for dual homed enterprises
daemon@ATHENA.MIT.EDU (Blake Hudson)
Thu Sep 24 12:23:03 2015
X-Original-To: nanog@nanog.org
To: nanog@nanog.org
From: Blake Hudson <blake@ispn.net>
Date: Thu, 24 Sep 2015 11:22:53 -0500
In-Reply-To: <56041E03.7080608@satchell.net>
Errors-To: nanog-bounces@nanog.org
Stephen Satchell wrote on 9/24/2015 11:00 AM:
> On 09/24/2015 07:05 AM, Blake Hudson wrote:
>> However, the ultimate way to control routing would be to advertise more
>> specific prefixes via the path that you want traffic to flow.
>
> Tried that, no joy.
I could only assume then that your peers were either not accepting your
advertisements or there was an error in your configuration. All routers
will choose the most specific route they have when performing
destination based routing. This overrides how the route was installed
(static, connected, dynamic) or any metrics considered within each
routing protocol for its best path selection.
