Τεχνικές διαχείρισης φορτίου σε δίκτυα κορμού υψηλών ταχυτήτων

Φωτεινός, Βασίλειος Α.

Master Thesis

Author

Φωτεινός, Βασίλειος Α.

Date

2012-09-28

Abstract

Traffic engineering has become an essential consideration in the design and operation of core networks. One of the reasons is the increasing demands for quality of service (QoS), reliability and efficiency. Traffic engineering addresses the issue of performance optimization of operational networks. An important objective of traffic engineering is the transport of IP traffic through a given network in the most efficient, reliable, and expeditious manner possible. Historically, traffic engineering mechanisms have been hampered by the limited functional capabilities of conventional IP technologies. Recent developments in multiprotocol label switching (MPLS) have opened up new possibilities to address some of the limitations of the conventional technologies. This master thesis discusses the applications of MPLS paths to traffic engineering in IP networks. Especially, examines how traffic splitting through different mpls paths can prevent congestion in network. Also, the concept of energy-efficient networking has begun to spread in the past few years. Besides the widespread sensitivity to ecological issues, such interest also stems from economic needs, since both energy costs and electrical requirements of Internet Service Providers' infrastructures around the world show a continuously growing trend. In this respect, a common opinion among networking researchers is that the sole introduction of low consumption hardware technologies may not be enough to effectively curb energy requirements. Thus, in order to increase energy efficiency in networks, these hardware enhancements must be integrated with traffic engineering mechanisms that explicitly manage energy saving, by exploiting network-specific features.