21. SDN Controller
SDN Control Logic
Southbound API
Northbound API
SDN Controller 架構
• Northbound API
– 將 SDN Applications 及 Controller
串起來溝通的北向介面
• SDN Control Logic
– 處理所有南北向或其他資訊的邏輯中樞
• Southbound API
– 將 Switch 及 Controller
串起來溝通的南向介面
SDN Architecture: https://upload.wikimedia.org/wikipedia/commons/e/e6/SDN-architecture-overview-transparent.png
22. SDN Control Logic
Southbound API
Northbound API
SDN Controller
Northbound API Driver
SDN Application Logic
SDN Application
Southbound Agent
Forwarding Engine
SDN Switch
Controller Framework
OpenFlow Driver
BGP Agent
BGP Driver
BGP Logic
OpenFlow Agent
Forwarding Engine