44:49 AM Nova Southeastern University IP Address: 137.52.76.29 Analysis of Issues in SDN Security and Solutions McKeown, N., Anderson, T., Balakrishnan, H., Parulkar, G., Peterson, L., Rexford, J., & Turner, J. et al. (2008). Openflow: Enabling innovation in campus networks. Computer Communication Review, 38(2), 69-74. doi: 10.1145/1355734. 1355746 KEY TERMS AND DEFINITIONS Denial of Service: A type of attack on network where attackers prevents the legitimate users from accessing the service. Distributed Denial of Service: Interruption of online services by overwhelming it with services from different sources. Entropy: Entropy is randomness of an application in security aspect. A lack of entropy can have a negative impact on performance and security. Flooding: Flooding is forwarding of packet from a router to every other router/ node except the node from which the packet has been arrived. OpenFlow: An open source network protocol which is programmable in nature and directs and handles the traffic flow of the network. The SDN controller can run on multiple protocols but it is one of the most popular ones. It segregates the programming of the layer 2 and 3 devices from the hardware they are running over. SDN Controller: Being the vortex of the SDN architecture, all the controller agents present in the devices answer to the controller which in turn enables intelligent networking by managing and handling the traffic flow of the network. Software-Defined Network: A technology that allow network administrator to programmatically initialize, control, change network behaviour dynamically. Downloaded 4/15/2022 9:44:49 AM Nova Southeastern University IP Address: 137.52.76.29 Chapter 11 WSN Structure Based on SDN Premkumar Chithaluru University of Petroleum and Energy Studies, India Ravi Prakash University of Petroleum and Energy Studies, India Subodh Srivastava Vallurupalli Nageswara Rao Vignana Jyothi Institute of Engineering and Technology, India ABSTRACT In this chapter, a general structure for a product-characterized r