[c-nsp] Global Route Leaking on same PE

[Joe Maimon]

Tim Durack wrote:

> 
> Amen to that.
> 
> I've played around with the various loopback strategies, including
> using a gre tunnel that originates/terminates on the same PE. It
> worked, but didn't seem like a scalable solution.

A dot1q trunk between two ports (if your not using a switch platform as 
your router) or even ATM scales. You just pay 2x pps. And you can scale 
it for however many connections you want. Which is probably faster than 
tunnels, but I havent actually benchmarked it.

> 
> The conclusion I came to is that most MPLS scenarios assume you are
> using a separate PE/firewall to move traffic between global and vrfs
> (and probably even inter-vrf.)
> 
> It would be great to have a simple global-vrf route exchange feature though.

And a way to treat it as an interface on both sides.

> 
> Tim:>
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