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Provider Backbone Bridge with Traffic Engineering: A Carrier Ethernet Technology Overview

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Provider Backbone Bridge with Traffic Engineering: A Carrier Ethernet Technology Overview

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  • Author: Thierno Diallo
This application note presents this new technology and its evolution compared to legacy Ethernet, provides details about its format and suggests some of the testing requirements for the deployment of such networks. Originally designed as a local-area network (LAN) communication protocol, Ethernet allows computers and nodes to be interconnected within a small network. But to expand its reach into the core infrastructure, Ethernet needed to offer carrier-grade quality of service (QoS) guarantees and reliability to thousands of computers across metropolitan, national and global distances without affecting its simplicity and cost-efficiency. A new addition to the 802.1 standard known as Provider Backbone Bridge with Traffic Engineering (PBB-TE), defined as IEEE 802.1 Qay, is widely regarded as Ethernet’s carrier-class solution to this challenge.

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