無庸置疑地SDN已是下世代網路技術的發展趨勢，但在現實企業網路環境中，短時間內要將 全部的網路設備都替換成支援SDN設備，建造一個Full SDN環境是不切實際的，只能進行部分設 備逐步替換， 讓傳統網路與SDN網路可以交錯融合協同運作， 達到SDN網路的平滑演進。本文 針對運用SDN架構於企業網路之Migration議題，研發以Edge Switch為首要移轉目標且不影響 既有網路運作為前提下，提供企業SDN混合式網路介接運作功能、優化VLAN管理與維護機制， 以及提升更換Edge Switch維運效能的解決方案， 並針對解決方案所開發的Enterprise SDN Migration for Edge Switch系統提出系統架構與關鍵技術， 同時對於Controller為建立SDN Migration技術所研發之智能模組功能進行說明，以及結合工研院資科中心針對本系統落實場域 驗證的布建架構與服務功能加以介紹。

SDN is no doubt the trend for the development of next -generation network technology. But in reality, it is impractical to replace in a short time all network devices with SDN-enabled devices for the construction of a full SDN environment. What is more workable is gradual replacement of some of the equipment, so that the traditional network and SDN network can be coordinated in operation to achieve the smooth evolution of SDN networks. Targeting at the issue on the use of SDN architecture in the enterprise network for Edge Switch Migration, the article introduces a technique capable of attaining the goal of migrating the edge switches without affecting the operation of existent network, the developed technique can provide the enterprise SDN mixed network interworking, optimizing the mechanism of VLAN management and maintenance, and improving the maintenance performance of Edge Switch replacement. The article first introduces the system architecture and key technologies developed through Enterprise SDN Migration for Edge Switch system. It then explains the intelligent control programs developed by SDN Controller to c onstruct SDN Migration technology. Also introduced is the system deployment architecture and service functions with the help of ITRI Information Technology Services Center for the deployment to actualize field trial.