![]() ![]() Semakin berkembangnya teknologi saat ini berbanding lurus dengan kebutuhan akan proses mengelola dan monitoring jaringan yang lebih efektif dan efisien. after changing the Algorithm now we can see the path changed and routes from S1 to S2 then from S2 to S3. Then, each ingress router finds a route with sufficient bandwidth to an egress router for each traffic aggregate. ![]() each router builds a map of the network topology and the bandwidth available on each link. one or multiple UDP flows are created between S1 towards S3 with data rate of 5 Mbps, through the testbed, Original Routing was according the Shortest path, from S1 to S3 directly, because it considered to be the Shortest path between them. In order to check the functionality of Floodlight controller with the TopologyInstance Module, the (LLDP) exchanging between switches (as in Figure 5) the log messages displayed in the controller's console. We changed the weight of the links and the module is going to find the mini max link that has the minimum Band Width. Our work is based on finding the Widest path according to the Band Width. Therefore, each weight has been randomly assigned a positive value. For an accurate approach, the algorithm has been modified and it was considered that the weight on the links correspond to random loads on each aggregation switch. The current version of Dijkstra algorithm in TopologyInstance.java module implemented in the Floodlight Controller is computed based on equal weights (i.e. ![]() Dijkstra is a greedy algorithm which makes at each step in the computation the best choice at that moment. The Widest Path is a routing mechanism based on Dijkstra algorithm. Our purpose is to change the Shortest path to the Widest path Routing. It is designed to enable enormous network automation through programmatic extension and supporting OpenFlow 1.3 protocols except Meters. Open vSwitch is a production quality, multilayer virtual switch licensed under the open source Apache 2.0 license. One of OpenFlow switches is Open vSwitch (OVS). Floodlight is an SDN Controller presented by Big Switch Network that works with the OpenFlow protocol to orchestrate traffic flows in a Software Defined Networking (SDN) environment. Topology The OpenFlow network controller used in the test is Floodlight.
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