| | RFC 3031 (rfc3031) - Multiprotocol Label Switching Architecture |
 | | Label Assignment and Distribution In the MPLS architecture, the decision to bind a particular label L to a particular FEC F is made by the LSR which is DOWNSTREAM with respect to that binding. |
 | | LSP Tunnels It is possible to implement a tunnel as a LSP, and use label switching rather than network layer encapsulation to cause the packet to travel through the tunnel. |
 | | LSP Trees as Multipoint-to-Point Entities Consider the case of packets P1 and P2, each of which has a destination address whose longest match, throughout a particular routing domain, is address prefix X. Suppose that the Hop-by-hop path for P1 is , and the Hop-by-hop path for P2 is . |
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