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Software Defined Network has a centralized controller that regulates packet forwarding by updating flow tables of switches. The sole responsibility of these OpenFlow-enabled switches is to forward packets according to rules in their flow tables. The function of Software Defined Network is similar to the traditional IPTV protocol that there are Rendezvous Point be the intermediate node. Rendezvous...
This paper extends the well-known Dijkstra's shortest path algorithm to consider not only the edge weights but also the node weights for a graph derived from the underlying SDN topology. We use Pyretic to implement the extended Dijkstra's algorithm and compare it with the original Dijkstra's algorithm and the unit-weighted Dijkstra's algorithm under the Abilene network topology in terms of end-to-end...
This study proposes a Software-Defined Networking (SDN) architecture to help cloud customers receive highly efficient services in a heterogeneous cloud serving system. An application called SDNBroker is designed herein and superposed on the SDN controller by Northbound Application Programmatic Interfaces (Northbound API). When a cloud customer requests a service, the proposed SDNBroker schedules heterogeneous...
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