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Towards Flexible Qos Provisioning for Inter-Provider Services (Paperback)
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Towards Flexible Qos Provisioning for Inter-Provider Services (Paperback)
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The issue of providing Quality of Service (QoS) in the Internet is
becoming more and more important because of two phenomena: (1) the
growth of value added services that require QoS (e.g., IPTV) and
(2) network convergence towards a unified IP-based architecture,
for voice, image and data services. In this context, the
limitations of existing QoS technologies emerge: it is currently
difficult for an operator to guarantee that its network can offer a
specific level of service. Furthermore, it is very difficult to
ensure a consistent treatment of end-to-end QoS-sensitive flow that
cross networks controlled by several operators. Indeed, the control
on such traffic flows is shared between all the traversed
operators. In the thesis, we have studied these issues and, more
specifically, routing and dynamic traffic engineering at
inter-domain level. We have proposed several algorithms to compute
paths subject to multiple performance constraints. Analytical
studies and simulations show that our algorithms are efficient. Our
work represents an important step towards more effective
inter-domain traffic management in traffic engineered networks.
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