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espanolEn la actualidad es comun compartir gran cantidad de informacion entre los sistemas y los mecanismos de control de congestion son indispensables para evitar la saturacion en las redes de datos. Aunque se han propuesto diferentes mecanismos, las investigaciones actuales siguen siendo de interes en este campo de la ciencia. En este articulo, se propone un mecanismo de control de congestion basado en ventana (window-based) para transferencias de datos en escenarios de multicast multiple. El algoritmo propuesto tiene como objetivo principal evitar la perdida de paquetes manteniendo un equilibrio en la tasa de envio de los emisores. Ademas, el algoritmo constantemente analiza el estado de saturacion del conmutador y de los nodos receptores considerando la tecnologia de almacenamiento utilizada. Experimentos y analisis muestran que se consigue un ancho de banda agregado de red considerablemente alto, se evita en medida de lo posible la retransmision de paquetes perdidos, aun cuando en el sistema de pruebas existe trafico de red adicional. EnglishCurrently, it is common to share a lot of information between systems and congestion control mechanisms are essential to avoid saturation in data networks. Although different mechanisms have been proposed, current research follows a focus on this area of science. In this paper, we propose a window-based congestion control mechanism for data transfers in multiple multicast scenarios. The main purpose of the proposed algorithm is to avoid packet loss maintaining a balance in the sending rate of senders. In addition, the algorithm continually analyzes the state of the saturation of the switch and of the receiver nodes considering the storage technology used. Analysis and experiments show that a considerably high network bandwidth is achieved, retransmission of lost packets is avoided as much as possible, even though there is additional network traffic in the test system.

Mecanismo de control de congestión para transferencias de datos en Multicast múltiple