軟體定義網路(SDN)技術藉由集中式管理與控制架構， 可提供應用服務可程式化之管控彈 性，以及網路資源使用效率之提升，目前已成為網路產業公認之技術發展趨勢。然而現今之接取 網路(Access Network)設備仍然是傳統的分散式管理架構， 因應如何協助接取網路支援SDN之議 題，本文中提出一個代理技術架構 (Proxy-based)方案，並以接取網路技術中的GPON 網路系統為 例，說明其在支援SDN管控時會遭遇的議題，以及如何實現支援SDN之解決方案。

The software-defined network (SDN) technology, by the centralized management architecture of the network, would allow networks to be run in a more flexible and efficient manner, e.g., by increasing network resource utilization. In recent years, SDN is well recognized as the network technology trend. Besides, the legacy access network devices were still managed by the distributed management architecture. In this paper, we proposes a proxy-based solution for the access network to support SDN, and choose the GPON network systems to illustrate their SDN supporting problems, and also describe how to implement the solution.