Dima,
There may be MPLS-LSPs which, at layer 3, make one router in Chicago
to a one-hop-neighbor of another router in Sydney. Certainly, such
links aren't as many as there are between regional neighbor routers.
Nevertheless they have to be considered and are of great importance.
Please explain to all, how this fits into your concept (you haven't
convinced me offlist so far).
Simply put, there are multiple paths between Chicago and Sydney. So a
failure in the US, can be packet rerouted. If you want to compare with
MPLS, it is just a circuit versus datagram argument. Which I will not
get into because that would be way off topic.
Dino
Heiner
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