CIDR FAQ

>   So what would the normal implementation of such a design be?  ebgp-multihop
>   all of your peers into the PC, and then a single peering session the Cisco,
>   presuming no "next-hop-self" routes?
>
>   I can see some amount of value in such a design, if it could be made to work
>   correctly.  Does anybody have the spare equipment to build a lab?  (pfeh, yeah,
>   right)
It's just as 'routing policy server' works. There is such projects
and it seems there is some good things in this idea.

But did anybody see real realisation of this?