Abstract

ISBN 978-1-61520-791-1; The Internet is an interconnection of multiple networks called domains. Inter-domain routing is ensured by BGP which preserves each domain's independence and announces routes arbitrarily chosen by domains. BGP messages carry no information concerning quality [...]

Abstract

The issue of providing Quality of Service (QoS) in the Internet is becoming more and more important because of two phenomena: (1) the growth of value added services that require QoS (e.g., IPTV) and (2) network convergence towards a unified IP-based architecture, for voice, image [...]

Abstract

The recent trend toward Network Softwarization is driving an unprecedented technoeconomic shift in the Telecom and ICT (Information and Communication Technologies) industries. By separating the hardware on which network functions/services run and the software that realizes and controls [...]

Abstract

This work seeks to improve the energy efficiency of backbone networks by automatically managing the paths of network flows to reduce the over-provisioning. Compared to numerous works in this field, we stand out by focusing on low computational complexity and smooth deployment of the [...]

Abstract

Most major operators use MPLS technology to manage their network via signalling and label distribution protocols. However, these protocols are complex to deploy, maintain and troubleshooting is often very difficult. The IETF has initiated the standardization of a segment routing architecture [...]

Abstract

This thesis mainly focuses on all-optical lightpaths establishment. We consider all along the thesis optical networks with finite resources, that is with a given maximum amount of wavelengths per fiber. Both exact and approximate optimization techniques are considered. In a first [...]

Abstract

This paper presents the software architecture of a traffic engineering toolbox. The methods already included cover MPLS-based intra-domain traffic engineering (TE), but will soon cover IP-based TE and inter-domain TE. This toolbox provides an open source software that allows an operator [...]

Abstract

The calculation of virtual topologies on mapped onto physical topologies is one of the main techniques in traffic engineering. For a given physical network topology with fixed capacities, and a traffic matrix to route, the problem is the one of finding a virtual topology which will [...]