CompTIA Network+ Review Guide Exam N10-007 Fourth Edition by Jon Buhagiar

Author:Jon Buhagiar [Buhagiar, Jon]
Language: eng
Format: epub
ISBN: 9781119432302
Published: 2018-04-13T14:30:00+00:00

MPLS

Multiprotocol Label Switching (MPLS) is an emerging connectivity technology that uses packet-switching technology. It operates by adding MPLS labels to each packet generated from the customer and switching them in the provider’s network. This MPLS label allows the MPLS provider to packet-switch the data based on the label and not the layer 3 network addressing. This is why MPLS is considered to work at layer 2.5; it is not a true layer 2 protocol because it is augmented with an MPLS label. It is also not a true layer 3 protocol since the destination IP address is not used for routing decisions. This makes it an extremely efficient protocol for moving data. It is considered a packet-switched technology and can be used across many different types of connectivity technologies, such as SONET, Ethernet, and ATM.

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