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A Proposal of Control Method Considering the Path Switching Time of SDN and Its Evaluation

机译：考虑SDN路径切换时间的控制方法及其评价

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Recently, communication demands often change because of the various network services in companies and individuals. Software Defined Networking (SDN) has emerged as a viable control paradigm that allows flexible communication, using OpenFlow as its default standard and enabler. However, when changes happen frequently in SDN networks due to unforeseen reasons -such as a network failure or topology changes- it takes a long time to perform all the operations. For instance, to change a routing path, first new paths must be calculated, then the controller must transmit the commands to the network elements, which has to process those commands. This process can cause a delay, or even disruption, in the communication service. Therefore, this paper proposes a network control method to reduce the time to change a path using OpenFlow.
机译：最近，由于公司和个人的各种网络服务，通信需求经常发生变化。软件定义网络（SDN）已经成为一种可行的控制范例，它使用OpenFlow作为其默认标准和启用码来实现灵活的通信。但是，当由于不可预见的原因（例如网络故障或拓扑更改）在SDN网络中频繁发生更改时，执行所有操作将花费很长时间。例如，要更改路由路径，必须首先计算新路径，然后控制器必须将命令传输到网元，网元必须处理这些命令。此过程可能导致通信服务延迟甚至中断。因此，本文提出了一种网络控制方法，以减少使用OpenFlow更改路径的时间。

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