| Multiprotocol Label Switching
Traffic Engineering (MPLS/TE) provides a way to integrate TE capabilities (such
as those used on Layer 2 protocols like ATM) into Layer 3 protocols (IP). MPLS
TE uses an extension to existing protocols (Resource Reservation Protocol
(RSVP), IS-IS, Open Shortest Path First (OSPF)) to calculate and establish
unidirectional tunnels that are set according to the network constraint.
Traffic flows are mapped on the different tunnels depending on their
destination. See also MPLS.
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