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MPLS Network Management by Thomas D. Nadeau

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7

Offline Traffic Engineering

“Nature seems … to reach many of her ends by long circuitous routes.”

Rudolph Lotze

Introduction

Traffic engineering (TE) is a process whereby a network operator can engineer the paths used to carry traffic flows that vary from those chosen automatically by the routing protocol(s) in use in that same network. This is done in an effort to steer traffic through the network, which may result in more efficient use of network resources, protect against network node or link failures, as well as provide certain customers with custom services such as guaranteed bandwidth connections. It is possible to create a continuously operating traffic engineering system within MPLS environments that can be used to enhance the ...

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