Aiming at the abnormal behaviors in SDN architecture. a self-protection system based on Renyi entropy that implemented a set of detection. diagnosis and defense method of SDN abnormal behaviors was proposed. The system did not need to introduce the third-party measurement equipment. https://www.bekindtopets.com/mega-choice-Nutri-Vet-Uri-Ease-Paw-Gel-for-Cats-hot-buy/