本文關(guān)鍵詞： 軟件定義網(wǎng)絡(luò) kandoo 負(fù)載均衡 請(qǐng)求控制協(xié)議　出處：《浙江工商大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：軟件定義網(wǎng)絡(luò)(SDN)革命性地改變了現(xiàn)有的網(wǎng)絡(luò)架構(gòu),提供了可編程的網(wǎng)絡(luò)實(shí)現(xiàn),且把原有的網(wǎng)絡(luò)架構(gòu)解耦為數(shù)據(jù)平面、控制平面和應(yīng)用控制平面,使數(shù)據(jù)平面和控制平面分離,提高了性能和可擴(kuò)展性等。同時(shí),由于內(nèi)容服務(wù)已經(jīng)成為網(wǎng)絡(luò)服務(wù)的主體,使得現(xiàn)有的基于IP地址的尋址方式面臨巨大挑戰(zhàn)�；谏鲜鰡栴},我們通過kandoo架構(gòu)以及路由協(xié)議在分布式控制平面上的實(shí)現(xiàn)來進(jìn)一步了解SDN的控制平面,并通過引入基于內(nèi)容尋址方式且可完全部署在SDN框架下的內(nèi)容中心網(wǎng)絡(luò)(CCN),來研究應(yīng)用平面上的一個(gè)新的變革思想。 首先介紹kandoo架構(gòu),它改變了傳統(tǒng)的單一控制單元控制平面,變?yōu)橛啥鄠�(gè)控制器單元分布式互聯(lián)來形成多控制單元的控制平面架構(gòu),介紹了該架構(gòu)思想及相關(guān)實(shí)施細(xì)節(jié)。又根據(jù)本地控制器處理本區(qū)域內(nèi)頻繁事件,使相關(guān)任務(wù)下放該區(qū)域內(nèi)完成這一特性,引入負(fù)載均衡機(jī)制,提出基于最小優(yōu)先策略的加權(quán)輪詢算法來進(jìn)一步優(yōu)化本地控制器的這一功能,提高控制器處理負(fù)載的能力。 然后分析分布式路由協(xié)議在多控制單元控制平面內(nèi)怎樣高效實(shí)現(xiàn)。我們受路由控制平臺(tái)(RCP)架構(gòu)中控制器的功能模塊劃分思想的啟發(fā),把它進(jìn)一步擴(kuò)展到kandoo架構(gòu)的兩層控制器中,并把其路由功能放在單個(gè)AS自治系統(tǒng)下研究,分析BGP與OSPF協(xié)議在分布式控制平面上的實(shí)現(xiàn),并提出了提高根控制器計(jì)算路由信息能力以及本地控制器卸載根控制器負(fù)載壓力的幾點(diǎn)方法。 最后對(duì)CCN中的請(qǐng)求控制協(xié)議ICP的最新研究進(jìn)展進(jìn)行匯總,介紹了ICP協(xié)議的各分過程,如請(qǐng)求包發(fā)送,鏈路上帶寬共享傳輸,路由節(jié)點(diǎn)共享存儲(chǔ)和過濾過程。并對(duì)這些過程的模型化進(jìn)行了概括,然后對(duì)這些過程模型的合理性和準(zhǔn)確性進(jìn)行評(píng)價(jià)分析,給出了ICP協(xié)議的研究趨勢(shì)。
[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(xué)位授予單位】：浙江工商大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TP393.02

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本文編號(hào)：1510897