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  本文關鍵詞： 軟件定義網絡 kandoo 負載均衡 請求控制協議　出處：《浙江工商大學》2014年碩士論文　論文類型：學位論文

【摘要】：軟件定義網絡(SDN)革命性地改變了現有的網絡架構,提供了可編程的網絡實現,且把原有的網絡架構解耦為數據平面、控制平面和應用控制平面,使數據平面和控制平面分離,提高了性能和可擴展性等。同時,由于內容服務已經成為網絡服務的主體,使得現有的基于IP地址的尋址方式面臨巨大挑戰(zhàn)。基于上述問題,我們通過kandoo架構以及路由協議在分布式控制平面上的實現來進一步了解SDN的控制平面,并通過引入基于內容尋址方式且可完全部署在SDN框架下的內容中心網絡(CCN),來研究應用平面上的一個新的變革思想。 首先介紹kandoo架構,它改變了傳統的單一控制單元控制平面,變?yōu)橛啥鄠�控制器單元分布式互聯來形成多控制單元的控制平面架構,介紹了該架構思想及相關實施細節(jié)。又根據本地控制器處理本區(qū)域內頻繁事件,使相關任務下放該區(qū)域內完成這一特性,引入負載均衡機制,提出基于最小優(yōu)先策略的加權輪詢算法來進一步優(yōu)化本地控制器的這一功能,提高控制器處理負載的能力。 然后分析分布式路由協議在多控制單元控制平面內怎樣高效實現。我們受路由控制平臺(RCP)架構中控制器的功能模塊劃分思想的啟發(fā),把它進一步擴展到kandoo架構的兩層控制器中,并把其路由功能放在單個AS自治系統下研究,分析BGP與OSPF協議在分布式控制平面上的實現,并提出了提高根控制器計算路由信息能力以及本地控制器卸載根控制器負載壓力的幾點方法。 最后對CCN中的請求控制協議ICP的最新研究進展進行匯總,介紹了ICP協議的各分過程,如請求包發(fā)送,鏈路上帶寬共享傳輸,路由節(jié)點共享存儲和過濾過程。并對這些過程的模型化進行了概括,然后對這些過程模型的合理性和準確性進行評價分析,給出了ICP協議的研究趨勢。
[Abstract]:Software defined Network (SDN) revolutionizes the existing network architecture, provides programmable network implementation, decouples the original network architecture into a data plane, a control plane and an application control plane, and separates the data plane from the control plane. At the same time, since content service has become the main body of network services, the existing addressing methods based on IP address are faced with great challenges. Through the implementation of kandoo architecture and routing protocol on the distributed control plane, we can further understand the control plane of SDN. A new idea of change in application plane is studied by introducing the content-based addressing method which can be completely deployed in the framework of SDN. This paper first introduces the kandoo architecture, which changes the traditional control plane of single control unit, and becomes the control plane architecture of multiple control units by distributed interconnection of multiple controller units. The architecture idea and related implementation details are introduced. According to the local controller to deal with frequent events in the region, the related tasks are decentralized to complete this feature in the region, and load balancing mechanism is introduced. A weighted polling algorithm based on minimum priority strategy is proposed to further optimize the function of the local controller and improve the controller's ability to handle the load. Then we analyze how to implement the distributed routing protocol efficiently in the multi-control unit control plane. We are inspired by the idea of functional module partition of the controller in the RCP-based routing control platform. It is further extended to the two-layer controller of kandoo architecture, and its routing function is studied under a single as autonomous system. The implementation of BGP and OSPF protocols on the distributed control plane is analyzed. Several methods to improve the ability of calculating routing information of the root controller and the load pressure of the local controller to unload the root controller are put forward. Finally, the latest research progress of request control protocol (ICP) in CCN is summarized, and each process of ICP protocol, such as request packet sending, bandwidth sharing transmission on link, is introduced. The routing nodes share storage and filtering processes, and the modeling of these processes is summarized, then the rationality and accuracy of these process models are evaluated and analyzed, and the research trend of ICP protocol is given.
【學位授予單位】：浙江工商大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TP393.02

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本文編號：1510897