A comparison of automatic protocol generation techniques

Due to the increasing complexity of applications and the availability of high speed networks classical protocols have become the main bottleneck in communication systems. Although tailored protocols are able to respond to the needs of a given application their development is expensive in terms of time and effort. An automatic protocogeneration environment is most desirable. Two approaches currently used are the stub compilation and the runtime adaptive techniques. We have studied these two approaches and the behaviour of the resulting tailored transport protocols. Relative performance comparisons and discussions about these two approaches are presented in this paper

IREEL: remote experimentation with real protocols and applications over emulated network

This paper presents a novel e-learning platform called IREEL. IREEL is a virtual laboratory allowing students to drive experiments with real Internet applications and end-to-end protocols in the context of networking courses. This platform consists in a remote network emulator offering a set of predefined applications and protocol mechanisms. Experimenters configure and control the emulation and the end-systems behavior in order to perform tests, measurements and observations on protocols or applications operating under controlled specific networking conditions. A set of end-to-end mechanisms, mainly focusing on transport and application level protocols, are currently available. IREEL is scalable and easy to use thanks to an ergonomic web interface

Reducing Satellite Communication Cost Using Terrestrial Peer-to-Peer for Lost Recovery

A practical solution to implement IP multicast service may consist in using a geostationary satellite. The broadcast nature and the large coverage zone of such systems make it possible for a source to reach a potentially very large number of receivers with only one hop. In the context of reliable multicast communications, a hybrid satellite/terrestrial approach based on communication costs is described. Due to particular data dissemination resulting from the satellite communication phase, ad-hoc lost recovery peer-to-peer mechanisms are specially designed and evaluated through simulations. I

Automatic Generation of Dynamically Adaptable Protocols

Distributed multimedia applications have different quality of service (QoS) requirements from the simple reliable data transfer QoS provided by transport protocols like TCP and TP4. New protocols can be created to handle some of the general QoS requirements of distributed multimedia applications although this is a costly process in terms of time and money. In addition, given the variety of different multimedia applications and their different requirements, hand-crafting tailored protocols is not a viable approach for the future. A solution to this problem is to automate the process for protocol generation. This paper examines and contrasts two relevant models of automatic protocol generation, namely stub compilation and runtime adaptive approaches. Then, a new model based on the combined strengths of the previous approaches is introduced. The proposed model envelopes concepts like application layer framing, integrated layer processing and dynamic adaption of functionality