[c-nsp] mpls route target export question

[David Freedman]

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Nick Chettle wrote:
> Using multiple RD's is important for convergence when you are using
> route-reflectors as a route-reflector will only advertise the "best"
> BGP route to it's clients. If you use the same RD for a VPN across
> two (Or more) PE's then the route-reflector will see that route as
> the same and only pick the one it considers the best. If you use
> unique RD's the route-reflector will not consider the routes the same
> and will advertise both of them.
> 

Sure, understand the perils of RR and  was just trying to work out what
was different in an vpn environment, and the answer it seems is (quite
obviously) rda:x.x.x.x != rdb:x.x.x.x and this therefore is being used
to get around the bestpath selection problem.

I'm personally holding out for a good addpaths implementation :)

Dave.
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