[c-nsp] Encapsulating MPLS for transport over Internet?

[Garry]

Hi,

I'm currently working on some redundancy plans for a customer hookup ... 
currently, they are exclusively in our backbone infrastructure, where we 
have no problem delivering MPLS connections. The plan is getting a 
second uplink via another provider, with full BGP etc. ... I'm now 
looking in to a way of transporting MPLS VRF information/routing to them 
via the external link in case the primary link dies ... I could probably 
just set up a GRE tunnel between our border router and theirs, do a "ip 
vrf forwarding MPLSVRF" on the tunnel interface, and run BGP over that 
link, also, with lower priority ... should work I reckon, but is there a 
better way?

Tnx, -garry