János Harmatos

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The paper addresses the IP/MPLS network cost optimization problem of selecting localizations of nodes and links, combined with links' dimensioning. As MPLS is flexible in routing demands' flows through the network, the considered problem is similar to the classical NP-hard topological design problems dealt with in the past, mostly in the context of the road(More)
— Multiprotocol Label Switching technology provides efficient means for controlling the traffic of IP backbone networks and thus, offers performance superior to that of traditional Interior Gateway Protocol (IGP) based packet forwarding. However, computation of explicit paths yielding optimal network performance is a difficult task; several different(More)
— In this paper, the application questions of OSPF (Open Shortest Path First) routing protocols in the all–IP based protected UMTS (Universal Mobile Telecommunications System) access networks is investigated. The basic problem here is how the OSPF administrative weights should be adjusted in an adequate way, resulting near–optimal overall network(More)
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