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               <dc:title>Policy-assisted planning and deployment of virtual networks</dc:title>
               <dc:creator>Davy, Steven</dc:creator>
               <dc:creator>Serrat Fernández, Juan</dc:creator>
               <dc:creator>Astorga Rivera, José Antonio</dc:creator>
               <dc:creator>Jennings, Brendan</dc:creator>
               <dc:creator>Rubio-Loyola, J.</dc:creator>
               <dc:subject>Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors</dc:subject>
               <dc:subject>Virtual computer systems</dc:subject>
               <dc:subject>Computer networks</dc:subject>
               <dc:subject>Ordinadors, Xarxes d'</dc:subject>
               <dc:description>We present an approach for deploying and subsequently managing a virtual network overlay, which is tailored to an end-user’s request. Our approach combines a binary integer optimisation process to decide on the number and placement of virtual routers, and an autonomic network management system&#xd;
that subsequently manages the configuration of the running virtual network. High-level optimisation policies are used to guide&#xd;
the optimisation process to identify a virtual network that favours lower hosting costs or higher network quality (we use mean&#xd;
delays as a quality metric). Low-level deployment policies are generated and used to govern the deployment and management&#xd;
of the virtual networks. Our results indicate that the binary integer optimisation process produces a virtual network that has lower cost as compared to creating a network based on combined&#xd;
shortest paths.</dc:description>
               <dc:description>Peer Reviewed</dc:description>
               <dc:description>Postprint (published version)</dc:description>
               <dc:date>2011</dc:date>
               <dc:type>Conference report</dc:type>
               <dc:relation>http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6104020&amp;tag=1</dc:relation>
               <dc:rights>Restricted access - publisher's policy</dc:rights>
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