| dc.description.abstract | To explore and study the opportunities and threats SDN related technologies in terms of safety are going to face, discuss about SDN technology-specific focus, controllability and network programmable resistance, to improve the safety performance of the relevant network It has advantages, such as spectrum monitoring network extension; but also made SDN technology will also be introducing new security threats and risk exposure and so on. At the same time can be found from the study, SDN technology for Internet security performance improvements especially through the use of a combination of sFlow and Snot, makes it to network traffic with a strong ability to control, will allow traffic safety will become more flexible and efficient, its concentration can be controlled source IP addresses and other aspects of the network traceable solutions. The FRESCO security application development framework itself is a kind of OpenFlow applications, it is the secondary development of NOX Controller undertaken: On the basis of NOX kernel strengthen security on the external Port legacy network to provide security systems to ensure maximum phase Platform Capacitive; and provide convenient FRESCO Script API, and a built-in library 16 provided in the form of reusable modules by using FRESCO Script, and invoking modules, you can accelerate the development of safe applications up. | en_US |