We consider a problem motivated by the design of ATM (Asynchronous Transfer Mode) networks. Given a physical network and an All-to-All traffic, the problem consists in designing a virtual network with a given diameter, which can be embedded in the physical one with a minimum congestion (the congestion is the maximum load of a physical link). Here we solve the problem when the physical network i...

In this paper, a new two-level ow control scheme using VP credit-based control and stop-and-go rate control for ABR traac in Asynchronous Transfer Mode (ATM) networks is presented. This scheme can eeciently use the leftover band-width after the guaranteed traac has been satissed. Further , cell loss can completely be avoided. It is found that the average end-to-end delay of the proposed scheme ...

Asynchronous Transfer Mode (ATM) core networks constitute the backbone of many geographically spread Virtual Private Networks (VPN). The everincreasing implementation of Frame Relay (FR) based VPNs over ATM backbone is leading to a considerable latency in customer services running over the network. This paper describes the process of build-up delay in FR ATM interworking. In addition, this pape...

A new model to generate Asynchronous Transfer Mode (ATM) video traffic is presented. The model, implemented on neural networks, is capable of accurately adjusting the autocorrelation and probability distribution functions of a given video traffic. This adjustment is performed by capturing the projected conditioned histogram of the real traffic, so that the neural model will be able to yield a s...

This report introduces some basic issues regarding the transmission of variable bit rate (VBR) video in asynchronous transfer mode (ATM) networks with concentration on VBR video models and statistical characterises. Performance modeling for VBR video traac provides the starting point, in both the theoretical analysis and engineering design, for traac management , delay-buuer tradeoos, cell loss...

Research in distributed learning, tele-teaching, and computer-based education evolved over the last five years. Initial approaches of using stand-alone workstations with tutorial programs have been refined to networked solutions, where a lecturer is integrated into a distributed scenario and workstations are applied to handle communication purposes only. Exploiting the rich area of available mu...

This paper presents a VESI implementation of a resource allocation scheme, based on the concept of weighted fair queueing. The design can be used in Asynchronous Transfer Mode (ATM) networks to ensure fairness and robustness. Weighted fair queueing is a scheduling and buffer management scheme that can provide a resource allocation policy and enforcement of this policy. It can be used in network...

Asynchronous Transfer Mode (ATM) network technology is expected to become a central part of the emerging global information infrastructure. ATM networks introduce a number of features that distinguish them from earlier technologies and introduce new issues in network control. This paper ooers a framework for precisely deening and analyzing alternative approaches to the distributed control of AT...

The Point-to-Point Protocol (PPP) over Asynchronous Transfer Mode (ATM) Adaptation Layer 2 defines the encapsulation that allows a PPP session to be transported over an ATM virtual circuit using the ATM Adaptation Layer 2 (AAL2) adaptation layer. This document defines a set of class extensions to PPP over AAL2 that implement equivalent functionality to Multi Class Multi Link PPP over a single A...

In this paper we present the traffic management functions in Asynchronous transfer mode (ATM) networks. In the first part of the paper commonly used traffic models for ATM traffic are discussed. Traffic management and its functions in the network are presented in the next part of the paper. Then connection admission control methods (CAC) as preventive traffic management mechanism are then prese...