Engenharia de tráfego para obtenção de QoS na comunicação entre tarefas em grades computacionais
Abstract
The advent of grid computing made possible to access distributed resources, even
when they are geographically spread or belong to different organizations. The most used
environment for accessing these distributed resources is the Internet, a worldwide computer
network based in TCP/IP architecture. Grid computing provides the infrastructure necessary
for managing and communicating with the resources offered by different organizations. These
organizations are also known as virtual organizations (VO's).
Some of the applications used in these collaborating environments may have minimum
requirements by quality of service (QoS). However, the "best effort" service, which is offered
by Internet, is not capable to satisfy these QoS requirements. In this case, a different solution
is needed, in order to provide guarantees related to the traffic in communication channels.
This master thesis aims to apply the concepts of quality of service for networks in grid
computing, providing end-to-end quality of service between grid computing applications. In
order to achieve this goal, we investigate the use of commutation infrastructure provided by
MPLS networks. Using traffic engineering mechanisms for routes determination, we aim to
provide better control of data flows, improving the performance of distributed applications in
geographically highly spread environments.