Congestion Avoidance for Unicast and Multicast Traffic

International audienceThis paper proposes a congestion avoidance mechanism that addresses unicast (TCP or UDP) as well as multicast (UDP) best effort flows. Our mechanism originally combine explicit congestion notification (ECN) based on router active queue management to detect congestion, with ICMP source quench messages to inform the involved sources of the network congestion state. The fairness achieved is a trade-off between TCP-like and max-min fairness. We demonstrate through simulation that the proposed mechanism enforces fairness and provides an efficient and simple solution to congestion avoidance

Quel Contrôle de Congestion Choisir pour l'UDP?

National audienc

Contrôle de congestion dans Internet (un mécanisme unifié pour prévenir la congestion des flots unicast et multicast)

PARIS-BIUSJ-Thèses (751052125) / SudocCentre Technique Livre Ens. Sup. (774682301) / SudocPARIS-BIUSJ-Mathématiques rech (751052111) / SudocSudocFranceF

Congestion Avoidance for Unicast and Multicast Traffic

This paper proposes a congestion avoidance mechanism that addresses unicast (TCP or UDP) as well as multicast (UDP) best effort flows. Our mechanism originally combines Explicit Congestion Notification based on router active queue management to detect congestion, with ICMP source quench messages to inform the involved sources of the network congestion state. The fairness achieved is a trade-off between TCP-like and Max-Min fairness. We demonstrate through simulation that the proposed mechanism enforces fairness and provides an efficient and simple solution to congestion avoidance

Requirements for OPES Callout Protocols

In the context of the Content Networks, the Open Pluggable Edge Services represents an infrastructure that enables quick and easy creation of value-added networking services. This document attempts to present requirements for callout protocols that provide communication between an in-path OPES intermediary (e.g. a cache)and remote callout servers

Communications

International audienceMulticast communication is by definition greedier in bandwidth than unicast communications within the same number of receivers. The design of a multicast congestion control algorithm is then an important and useful task. There are two potential approaches for congestion control: within the network (it involves routers and distribution trees rather than simple paths as in the unicast case), and end-to-end