[f-nsp] Netiron B4GMR4 - Need BGP Help

[Stephen Wilcox]

On Fri, Jul 27, 2007 at 10:19:08AM -0700, Stephan M. Mackenzie wrote:
>    I have 2 of these in place at my edge, running eBGP, connected to some
>    cisco routers on an iBGP mesh
> 
>    Each one of the foundries connects to an outside provider.
> 
>    Provider 1 - assigned IP space to us, a /22 and was the first one set up,
>    we announce back to them the /22 and take a full routing table.
> 
>    Provider 2 - is agreeing to let us announce Provider 1's IP space ( the
>    /22 ) and we announce it out as 4 x /24's hoping that this would give
>    Provider 2 a much greater preference and have most if not all incoming
>    request come via Provider 2.

ok icky, you're polluting the routing table with 5x as many routes as is needed, this is not a good thing altho it isnt the cause of your trouble

>    Unfortunately this is not the case, basically I need some help with BGP
>    setup on Foundry, and hopefully, some advanced help to force certain of my
>    customer out going on Provider 1 or 2

have you checked your foundries are announcing the correct prefixes to each provider (sh ip bgp ne <x> advertised-routes)

then can you ask provider 2 what routes they are seeing.. alternatively find a public looking glass and look for some evidence of the routes.. or paste the routes here and i'll take a look in my Renesys Routing Intelligence tool..

>    If anyone is intimiately familiar with this type of setup and is willing
>    to help me out please let me know, I will gladly offer compensation if
>    needed.

i am intimately familiar, and i'll forward you my paypal :)

check the above and if you're unsure can you provide some specifics - config and what the routes and providers are?

thanks
Steve