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What is Multi-Protocol Label Switching (MPLS)

Chapter 173
Encyclopedia of Networked and Virtual Organizations
A standards-approved technology that integrates a scheme for label swapping/tagging with layer 3 routing. The purpose of label swapping is to improve performance of layer 3 routing in the switched network environment. In addition to moving traffic faster overall, MPLS makes it easier to manage a network for QoS.
Published in Chapter:
QoS Provisioning Framework in IP-Based VPN
Mirjana D. Stojanovic (University of Belgrade, Serbia) and Vladanka S. Acimovic-Raspopovic (University of Belgrade, Serbia)
Copyright: © 2008 |Pages: 8
DOI: 10.4018/978-1-59904-885-7.ch173
Abstract
A virtual private network (VPN) can be broadly defined as a “restricted communication between a set of sites, making use of a backbone that is shared with other traffic not belonging to that communication” (Carugi & De Clercq, 2004, p.116). Since the late nineties, with pervasive deployment of the Internet protocol (IP) technology in corporate networks, IP-based VPNs, in several forms and based on different network technologies, have become a promising solution for a wide range of corporate network services.
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Chapter 55
Optimizing Inter-Domain Internet Multicast
A datacarrying mechanism which emulates some properties of a circuit-switched network over a packet-switched network. MPLS operates at a OSI model layer that is generally considered to lie between traditional definitions of Layer 2 (data link layer) and Layer 3 (network layer), and thus is often referred to as a “Layer 2.5” protocol. It was designed to provide a unified datacarrying service for both circuit-based clients and packet-switching clients which provide a datagram service model. It can be used to carry many different kinds of traffic, including IP packets, as well as native ATM, SONET, and Ethernet frames.
Published in Chapter: Optimizing Inter-Domain Internet Multicast; From: Encyclopedia of Internet Technologies and Applications
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Chapter 54
Optical Network Survivability
Circuit- switching based mechanism to carry data over a packet-switched network using the concept of label switching.
Published in Chapter: Optical Network Survivability; From: Encyclopedia of Internet Technologies and Applications
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