[j-nsp] Troubleshooting BGP

Jason Lixfeld jason at lixfeld.ca
Thu Oct 8 09:07:41 EDT 2009

On 2009-10-07, at 10:24 PM, Stefan Fouant wrote:

> Yep, the OSPF route is preferred, you can see that in your display by
> looking at the * symbol next, which indicates which route is  
> active.  Also
> you can see that the BGP route has an "Inactive reason: Route  
> Preference",
> which makes sense in this case because as you indicate the default
> preference value for OSPF externals is lower than BGP routes.  By  
> default,
> BGP will only advertise active BGP routes.  You'll need to either  
> put in a
> policy to redistribute the OSPF route to BGP, or use the advertise- 
> inactive
> command to advertise the inactive BGP route.
> -- 
> Stefan Fouant

We decided that instead of using advertise-inactive, we'd instead just  
prevent this prefix from being redistributed into OSPF in the first  
place.  It's a customer prefix, so there's really no reason why it  
would need to be in our IGP.

Thanks to all who contributed on/off-line replies.

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