MPLS label question

What happens to the router when it receives same label from 2 downstream routers?

P1 --- P2 --- P3
       |
        P4

If p1 and p3 tells p2 to use label 10 for 1.1.1.1, and 3.3.3.3.
What would happened?

Thanks

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Received on Thu Dec 02 2010 - 03:05:49 ART