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Multiprotocol Label Switching

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Also known as MPLS, MLPS, Multi-protocol label switching

network routing scheme based on labels identifying paths

Wikidata facts

Instance of
routing protocol
Show 4 more facts
discoverer or inventor
Ipsilon Networks
publication date
2001-00-00
topic's main category
Category:MPLS networking
Commons category
MPLS
Sources (3)

via Wikidata · CC0

~24 min read

Encyclopedic overview

Multiprotocol Label Switching (MPLS) is a routing technique in telecommunications networks that directs data from one node to the next based on labels rather than network addresses. Whereas network addresses identify endpoints, MPLS labels identify established paths between endpoints. MPLS can encapsulate packets of various network protocols and supports a range of access technologies, including T1/E1, ATM, Frame Relay, and DSL.

MPLS was originally developed to improve packet forwarding by reducing the reliance on complex routing table lookups. With the introduction of hardware-based forwarding engines, forwarding speed is no longer the main reason for deployment, and MPLS today is more often used for traffic engineering, differentiated services quality of service, and BGP/MPLS IP virtual private networks (VPNs).

Excerpted from Wikipedia’s “Multiprotocol Label Switching” article, available under the CC BY-SA 4.0 licence.