<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-04-14T02:55:29Z</responseDate><request verb="GetRecord" identifier="oai:www.recercat.cat:2117/16125" metadataPrefix="qdc">https://recercat.cat/oai/request</request><GetRecord><record><header><identifier>oai:recercat.cat:2117/16125</identifier><datestamp>2025-07-17T07:52:32Z</datestamp><setSpec>com_2072_1033</setSpec><setSpec>col_2072_452950</setSpec></header><metadata><qdc:qualifieddc xmlns:qdc="http://dspace.org/qualifieddc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:doc="http://www.lyncode.com/xoai" xsi:schemaLocation="http://purl.org/dc/elements/1.1/ http://dublincore.org/schemas/xmls/qdc/2006/01/06/dc.xsd http://purl.org/dc/terms/ http://dublincore.org/schemas/xmls/qdc/2006/01/06/dcterms.xsd http://dspace.org/qualifieddc/ http://www.ukoln.ac.uk/metadata/dcmi/xmlschema/qualifieddc.xsd">
   <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>
   <dcterms:abstract>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.</dcterms:abstract>
   <dcterms:abstract>Peer Reviewed</dcterms:abstract>
   <dcterms:abstract>Postprint (published version)</dcterms:abstract>
   <dcterms:issued>2011</dcterms:issued>
   <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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