Multiprotocol Label Switching: An In Depth View

by LoyCurtis Smith
Oct. 2, 2017 1 comment Infosecwriters Management

Multiprotocol Label Switching (MPLS) is a revolutionary packet forwarding WAN technology that operates between Layer 2 and Layer 3 of the OSI model, which has been classified as Layer 2.5. It is placed between the two layers because it integrates the fast paced switching, that takes place in the data link layer ,with IP routing, that takes place in the network layer, to do what is called label based switching. It is a multifaceted technology that shifts the paradigm of how packets are passed throughout the network. Multiprotocol label switching is a core network switching technique that offers numerous benefits such as increased performance, increased traffic control with traffic engineering, Quality of Service (QoS), secure transportation of traffic with MPLS Virtual Private Networks (VPNs), disaster recovery, as well as many other things, to Internet Service Providers (ISPs), telecommunication carriers, as well as large enterprises. It has the capabilities to do so much that often...

http://www.infosecwriters.com/Papers/LSmith_MultiprotocolLabelSwitching.pdf

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Irina Alexandra Negrii 4 months, 1 week ago

it allows most packets to be forwarded at Layer 2 known as the switching level rather than having to be passed up to Layer 3 (the routing level). Each packet gets labeled on entry into the service provider's network by the ingress router

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