An extended weighted fair queuing (EWFQ) algorithm for broadband applications including multicast traffic

Theme 1 - Reseaux et systemes - Projet AdpSIGLEAvailable from INIST (FR), Document Supply Service, under shelf-number : 22588, issue : a.1997 n.1158 / INIST-CNRS - Institut de l'Information Scientifique et TechniqueFRFranc

An Extended Weighted Fair Queuing (EWFQ) algorithm for broadband applications including multicast traffic

Ensuring end-to-end bounded delay and fair allocation of bandwidth to a backlogged session are no more the only criterias for declaring a queue service scheme good. With the evolution of packet-switched networks, more and more distributed and multimedia applications are being developed. These applications demand that service offered to them should be homogeneously distributed at all instants contrarily to back-to-back packet's serving in WFQ scheme. There are two reasons for this demand of homogeneous service: ffl In feedback based congestion control algorithms, sources constantly sample the network state using the feedback from the receiver. The source modifies its emission rate in accordance to the feedback message. A reliable feedback message is only possible if the packet service is homogeneous