The evolution of Software Defined Network (SDN) and its guarantees in systems administration innovation has gotten each partner energized. Notwithstanding, it is trusted that each innovative advancement accompanies its own difficulties of which the most conspicuous for this situation is network security. This paper displays a continuous recognition of the disseminated forswearing of administration (DDoS) assaults on the SDN and a control strategy dependent on the sFlow moderation innovation. sFlow investigations tests of bundles gather information from the system traffic and creates dealing with guidelines to be sent to the central administrator in the event of an assault recognition method. The execution was finished by copying the system in Minimum which keeps running on a Virtual Machine (VM) and it was demonstrated that the proposed technique successfully distinguishes and mitigates DDoS assaults.