Testbed Measurements of Novel Tranport Protocols

OData support
Supervisor:
Dr. Sonkoly Balázs
Department of Telecommunications and Media Informatics

The rapidly growing Internet puts more and more demands on the transport

protocols in use nowadays. The solutions for used for data transmissions were

developed near the beginning of the creation of the Internet, using appropriate

techniques at that time, so now they’ve reached the limits of their efficient operation

and in a variety of network environments they’re unable to provide acceptable

performance for the users.

Recently a good number of theories were proposed for improving and adapting

to the needs of the present the traditional TCP congestion control mechanisms, and

investigations are underway to create new protocols which can replace TCP altogether.

These new mechanisms and TCP versions have appeared in the latest versions of Linux

kernels and new versions of Windows, which has resulted in today's heterogeneous

network traffic control mechanisms working side by side (or "against each other"). The

study and extensive testing of their functioning and interaction are of course essential

for future application of these versions.

In this paper I intend to examine the workings of some of the more important

TCP versions which can be found in the latest Linux kernels in a high-speed network

environment, using different measurement parameters and topologies. I also intend to

assess the viability of a new approach to transport mechanisms where the reliable data

transfer is granted by error correction and redundancy. The main aim of my

investigations is the analysis and evaluation of their performance, to see whether the

new protocols are capable of replacing the traditional TCP.

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