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Cisco IOS Multiprotocol Label Switching (MPLS) enables Enterprises and Service Providers to build next-generation intelligent networks that deliver a wide variety of advanced, value-added services over a single infrastructure.
http://www.cisco.com/c/en/us/products/ios-nx-os-software/multiprotocol-label-switching-mpls/index.html
An exemple of implementation using OSPF :
http://www.cisco.com/c/en/us/support/docs/multiprotocol-label-switching-mpls/mpls/13736-mplsospf.html
MPLS is core network technology uses improved method for the transmission of data packets in core networks. It uses32 bit mpls labels lookup instead of long ip header of20/24 bytes to transfer data packets in core networks..
To implement mpls in network, specialized dedicated mpls routers (lsr, ler) or upgraded ATM switches to provide and support MPLS functionality.. are needed and mpls configuration...
Multiprotocol Label Switching (MPLS) is a mechanism in high-performance telecommunications networks that directs data from one network node to the next based on short path labels rather than long network addresses, avoiding complex lookups in a routing table. The labels identify virtual links (paths) between distant nodes rather than endpoints. MPLS can encapsulate packets of various network protocols. MPLS supports a range of access technologies, including T1/E1, ATM, Frame Relay, and DSL
