Perhaps L3 is preferring the routes it hears from TW over the ones it hears from you. Perhaps there is a community string you can attach to your announcements to one or both providers which can help you further manipulate what they do with your routes ...
-----Original Message----- From: Joseph Jenkins [mailto:[email protected]] Sent: Wednesday, January 29, 2014 7:45 AM Cc: [email protected] Subject: Re: BGP multihoming with two address spaces I am announcing two separate /24s. 8.37.93.0 and 207.114.212.0. Joe On Jan 29, 2014, at 4:21 AM, Sasa Ristic <[email protected]> wrote: > How are you announcing your address space now? > > On Wed, Jan 29, 2014 at 12:32 PM, Joseph Jenkins > <[email protected]> wrote: >> I am seeking some feedback/help with my BGP configuration. I am peering with two providers level3 and tw. Unfortunately all of my address spaces are preferring the route over tw rather than level3. I have tried Prepending my AS and the carriers AS to the path on the tw side and I see those update being accepted by internet routers, but everyone is still preferring to install the tw routes rather than level3. I was trying to advertise each provider's address space out their connections and then use the other for backup. Now however everything is coming in through tw and no one seems to like level3. >> >> >> Thanks in advance for any guidance or assistance. >> >> Joe >> > > > > -- > Ristic Sasa > -- > mob: +381652221123 > fax: +381618208488 > -- > Molim Vas da ne štampate ovaj e-mail ukoliko Vam zaista nije potreban > na papiru. Hvala! >
