This paper presents a new framework for Voice over IP (VoIP) traffic modeling based on a nonhomogeneous Poisson process. The telecom industry is heading towards replacing the legacy TDM networks with an IP core network. The purpose of traffic engineering is to minimize call blocking probability and maximize resource utilization. A challenge of migrating to an IP core network is to develop an en...

As Internet evolves into a standard communications network, new techniques for the management of the available assets must be introduced. This paper discusses the mechanisms of exercising traffic engineering in IP networks. It provides a thorough analysis of the existent traffic engineering approaches and focuses on presenting the most recent proposals made in the specified area. The interestin...

This document describes a common practice on how the existing metric of Interior Gateway Protocols (IGP) can be used as an alternative metric to the Traffic Engineering (TE) metric for Constraint Based Routing of MultiProtocol Label Switching (MPLS) Traffic Engineering tunnels. This effectively results in the ability to perform Constraint Based Routing with optimization of one metric (e.g., lin...

Traffic demands in data centres are steadily increasing. Simple, yet commonly used round-robin algorithms are not able to meet these demands since they distribute the demands unevenly. Manually planning and redistribution, also called traffic engineering (TE), alleviates this problem. Traffic engineering is common in wide area networks (WANs). The high amount of manual work and associated cost ...

We investigate a general model of route selection for interdomain traffic engineering where the routing of multiple destinations can be coordinated. We identify potential instability and inefficiency problems, derive practical guidelines to guarantee stability without global coordination, and evaluate routing instability of interdomain traffic engineering using realistic Internet topology. We f...

We analyze several types of interdomain traffic engineering techniques. First, we briefly describe interdomain routing and the BGP protocol. Then, we summarize the characteristics of interdomain traffic based on measurements with two different ISPs. We evaluate how a typical ISP can select its upstream providers and show that with the BGP decision process many routes are selected non-determinis...

The Internet is constantly growing but the available resources, i.e. bandwidth, are limited. Using bandwidth efficiently to provide high quality of service to users is referred to as traffic engineering. This is of utmost importance. Traffic in IP networks is commonly routed along shortest paths with respect to auxiliary link weights, e.g. using the OSPF or IS-IS protocol. Here, shortest path r...

We have recently proposed Adaptive Multi-Path (AMP) routing as a novel algorithm for dynamic traffic engineering which provides significant performance improvements over competing routing strategies. In this paper we present microscopic investigations of the algorithm’s stability. Using a novel dedicated fluid simulation framework, several experiments have been carried out using appropriate top...

Safety is one of the most important and complex aspects of transportation engineering. It takes a traffic professional considerable time and effort to keep abreast of research in the field of safety as it relates to traffic engineering improvements. Reading through research reports and summarizing the results is an overwhelming task; especially when having to identify the constraints of each st...

The design of IP networks to support traffic engineering for both unicast and multicast traffic is a very difficult problem. This paper proposes a heuristic design algorithm called M-MENTOR that concern routing of both types of traffic. However, since multicast traffic model could be employed in many situations and could be managed by various kinds of multicast routing protocols, this paper con...