指管體系若要有效的運作，必須確保指揮管制體系中的資訊、決策以及通信等機 能，不受干擾且暢通無阻；未來戰場將轉型為資訊化戰場，部隊「e」化時代的到來， 使得國防體系運作之各項資訊與國防資訊網路有著密不可分的關係，國防資訊網路(Military Information Network, MINET) 的 運作績 效影響著整體國防事 務的運作績效 。如 何有效 運用國防資訊網路的資源與頻寬，為提昇國軍競爭優勢的重要關键，本研究以國軍後勤 資訊作業為例，藉由國防後勤資訊網路流量差別性服務分類機制，針對各個類型國軍後 勤網路應用資訊流量赋予封包傳输優先權限；同時藉由ns2網路模擬軟體模擬IETF差 別性服務機制之運作，將不同類型的後勤網路應用資訊流量配置多寡不同的網路頻寬， 使具有高封包傳輸優先權的後勤網路應用資訊流量能夠被優先傳送，而不具優先傳送權 的流量將被延遲傳送，藉以提供國防後勤資訊網路的差別性服務，期使國軍後勤資訊網 路應用作業能以最少之投資成本，發揮最大的運作效益，提昇國軍後勤資訊作業效能。

For a command system operating efficiently, it is important to assure the functionalities of information, decision and communication work well in the command system. In the future, battlefield would be digitalized and military would enter an e-era. The operation performance of Military Information Network (MINET) would impact the total operation performance of national defense affairs. Therefore, it is an important issue for R.O.C. military to use MINET resources and bandwidth efficiently in the future. This study tries to focus on R. O. C. logistic affairs information traffic over the MINET. A differentiated service classification scheme is proposed. The proposed differentiated service classification scheme would base on the features of different logistic affairs information traffic to assign them corresponding packet transmission priorities. Moreover, in this study, an ns2 simulator is implemented to simulate the IETF DiffServ scheme operations over the MINET. According to a packet transmission priority of logistic affairs information traffic, the corresponding bandwidth would be assigned by the IETF DiffServ scheme. Usually, a logistic network application with highest packet transmission priority would receive the best packet transmission performance; and a logistic network application with lowest packet transmission priority would receive the worst packet transmission performance. With the proposed differentiated service classification scheme and the IETF DiffServ scheme, a differentiated service behavior would be supported among different logistic affairs information traffic to en-hance the total operation performance of R.O.C. military logistic affairs.