This paper proposes an approach to the management of traffic in telecommunication networks. It was motivated by the growing need for intelligent network management in current telecommunication networks such as PSTN, ISDN or transmission networks. The goal is to constantly act upon the network in order to control the traffic flow, trying to maximize the number of calls that reach their destinati...

Multi Protocol Label Switching (MPLS) is generally considered as a mature technology. Many Internet Service Providers (ISPs) and telecommunication carriers have deployed it or are considering deploying it. An easy-to-use integrated management solution is requested by these ISPs. To realize a truly integrated management solution, a combined management information model is essential. In this pape...

High-performance event filtering is an essential service in a distributed processing environment. We are developing an object-oriented event filtering framework to efficiently process the large volume of event traffic generated by dynamic multi-point (DMP) applications (such as automated fault management in telecommunication systems). Our framework, which is based on CORBA, supports the automat...

The estimation of quality for real time services over telecommunication networks requires realistic models in order to generate impairments and failures during transmission. Starting with the classical Gilbert-Elliot model, we derive the second order statistics over arbitrary time scales and fit the parameters to match the packet loss pattern of traffic traces. The results show that simple Mark...

With the rapid evolution of telecommunication networks, real-time traffic management is becoming more and more crucial. We propose here a neural network modular architecture for performing diagnosis at different levels of the telephone network. This system is designed as an aid to the operator. We present results of different experiments with a first version of the architecture which mainly ope...

Quasi Simultaneous-Multiple Births and Deaths (QBD-M) Processes are used to model many of the traffic, service and related problems in modern communication systems. Their importance is on the increase due to the great strides that are taking place in telecommunication systems and networks. This paper presents the overview of the Spectral Expansion (SE) for the steady state solution of QBD-M pro...

Multi Protocol Label Switching (MPLS) is generally considered a mature technology. Many Intemet Service Providers (lSPs) and telecommunication carriers have deployed it or are considering deploying it. An easy-to-use integrated management solution is requested by these ISPs. To realize a truly integrated management solution, a combined management information model is essential. In this paper, w...

International Telecommunication Union, Telecommunications Sector (ITU-T) Recommendation Q.2110 states that the update of a granted credit window to the transmitter (VR(MR)) is implementation dependent. In this paper, a new algorithm is designed to control the traffic flow coming from malfunctioning users. The VR(MR) parameter is controlled for that purpose. The simulation results show that this...

Traffic congestion has become inevitably exuberant at the edge nodes of metroand/or wide-area networks due to the triple play transports of voice, data and video information globally supported on the bricolage of modern Internet. Commensurately, the local exchange carriers improvise necessary infrastructure at the physical-layer level across the entire turf of the service area. Pertinent to thi...

We consider a multi-layer network design model arising from a real-life telecommunication application where traffic routing decisions imply the installation of expensive nodal equipment. Customer requests come in the form of bandwidth reservations for a given origin destination pair. Bandwidth demands are expressed as a multiple of nominal granularities. Each request must be single-path routed....