That is what I thought, but I had someone questioning me, so I wanted to make sure from the experts... ;) Thanks! -----Original Message----- From: "Alex Bligh" <alex@alex.org.uk> Sent: Thursday, June 28, 2012 10:00am To: dspazman@epicup.com, bird-users@trubka.network.cz Cc: "Alex Bligh" <alex@alex.org.uk> Subject: Re: Routing Question --On 28 June 2012 09:47:56 -0700 dspazman@epicup.com wrote:
If you have 2 discrete sites, both with BGP, one announces a 100.100.100.0/20, and another announcing 100.100.100.0/24, will traffic for the /24 block always go to the site announcing the /24, even if it's closer to the site announcing the /20?
The more specific route, if accepted, will always win, irrespective of any other consideration. This is true on both IPv4 and IPv6, and is fundamental to IP routing rather than specific to BGP. -- Alex Bligh