We demonstrate the benefits of traffic engineering by studying three realistic network models derived from an actual service provider network. We evaluate traffic engineering in the presence of QoS-based routing schemes compared with the destination-based routing, the default routing behavior for the Internet. We also simulate prioritization of important traffic flows by implementing priority i...

Traffic engineering has been used in IP / MPLS networks for a number of years as a tool for making more efficient use of capacity by explicitly routing traffic demands where there is available network capacity that would otherwise be unused. Deployment of traffic engineering imposes an additional layer of complexity to network design and operations, however, which has constrained its adoption f...

Multi-Protocol Label Switching (MPLS) is in the process of standardization by the Internet Engineering Task Force (IETF). It is regarded as a technology for traffic engineering and QoS in IP-networks. we proposed a IETF Policy-based Network Management Framework and policies with MPLS specific classes. It uses a three-level policy architecture, which includes managing on device, network, and ser...

The principles of systems and software engineering can be re-applied beyond the range of the individual project. Traditional enterprise-wide tasks such as technology management, decision-making, organizational objectives, reuse, innovation and outsourcing are amenable to systems engineering. Examples of all of these areas will be presented. The rewards from a disciplined approach are clearly hi...

This document describes how conventional hop-by-hop link-state routing protocols interact with new Traffic Engineering capabilities to create Interior Gateway Protocol (IGP) shortcuts. In particular, this document describes how Dijkstra’s Shortest Path First (SPF) algorithm can be adapted so that link-state IGPs will calculate IP routes to forward traffic over tunnels that are set up by Traffic...