Graph-Based Policy Change Detection and Implementation in SDN

摘要: Software Defined Networking (SDN), as a cutting-edge network, splits control and management planes from the data plane for simplifying network manageability well programmability. In SDN, policies change with passage of time due to changes in application environment, topology or user/admin requirements. As result, modifications at take place. existing research works, packet violations occur already installed flow rules (switches) that are not modified case Access Control List (ACL) SDN controller. There has been no carried out identifies inefficiencies policy change. Our novel approach stores generated controller detects change, along conflicting rules, resolve identified problem Afterwards, removed switches new path according ACL policies. It helps minimize violations, which increases efficiency. this work, we deal detection respect access time, cost space. regard, used abstractions formalize detect help multi-attributed graphs. We utilized intent-based representation implementation our proposed approach. addition, extended performance metrics analysis The simulation results show performs better compared approach, by varying number transmission rate. clearly indicate increase