[j-nsp] multiple bgp routing tables

John T. Yocum john at fluidhosting.com
Wed Nov 5 16:15:44 EST 2008


Hopefully someone can give some advice how to configure this.

I've got a Juniper M7i, with 4 interfaces. Three of the interfaces are 
connected to upstream providers receiving full BGP feeds, the fourth is 
connected to our core layer 3 switch.

Most all of our IP blocks are announced, and routed through all three 
upstreams. However, I'd like to restrict a block or two to being routed 
via only two of the upstream providers.

For the inbound routing, I'll announce those blocks to the two upstream 
providers. Where I'm having trouble, is how to handle the outbound 
routing. For the outbound, I was thinking perhaps filter-based 
forwarding. If someone has an example of using that with BGP, I'd be 
most appreciative of it.

Thanks,
John


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