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The OpenFlow has been widely used as a standard protocol to actualize Software Defined Networking. With the object of reliability and scalability in a control plane of a more realistic network, management methods utilizing multi-controllers has been getting more developed these days. However, implementing the management methods on multi-controllers might(More)
The purpose of this study is to realize a fast failure recovery method with reducing packet loss on a large-scale complicated network. Though conventional failure recovery methods can work fast with a little control messages, they might be limited for a ring topology. Some studies try to apply the ring failure recovery methods to mesh networks by extracting(More)
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