本文關(guān)鍵詞：基于軟件定義架構(gòu)的IP與光融合網(wǎng)絡(luò)控制技術(shù)研究　出處：《北京郵電大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 軟件定義網(wǎng)絡(luò) 融合網(wǎng)絡(luò) 多層控制 跨層恢復(fù)

【摘要】：隨著新型業(yè)務(wù)的不斷涌現(xiàn),傳統(tǒng)的IP網(wǎng)絡(luò)與光網(wǎng)絡(luò)分離的控制模式將導(dǎo)致昂貴的建設(shè)成本和運(yùn)營成本。由于數(shù)據(jù)業(yè)務(wù)帶寬的爆炸式增長,這種成本代價(jià)與日俱增,而異構(gòu)網(wǎng)絡(luò)的統(tǒng)一控制是解決上述問題的關(guān)鍵所在。 本論文針對IP網(wǎng)絡(luò)與光網(wǎng)絡(luò)統(tǒng)一控制需求,建立了一種基于軟件定義的融合網(wǎng)絡(luò)控制模型,提出了一種面向資源優(yōu)化的Bypass實(shí)現(xiàn)機(jī)制,設(shè)計(jì)了基于軟件定義的層間故障協(xié)同恢復(fù)方案,完成了層間故障協(xié)同恢復(fù)策略的仿真,驗(yàn)證了所提方案與策略的正確性。主要工作和創(chuàng)新成果如下： 一、針對現(xiàn)有IP網(wǎng)和光傳送網(wǎng)分離控制而帶來的成本昂貴、資源浪費(fèi)等問題,提出了一種基于軟件定義的融合網(wǎng)絡(luò)控制模型,通過控制器間信息交互,完成了對異構(gòu)網(wǎng)絡(luò)的集中控制,實(shí)現(xiàn)了IP網(wǎng)絡(luò)與光網(wǎng)絡(luò)的統(tǒng)一控制與資源最優(yōu)利用。 二、基于上述融合模型,提出了一種面向資源優(yōu)化的Bypass實(shí)現(xiàn)機(jī)制,通過IP層和光層控制器之間的協(xié)作,可以實(shí)現(xiàn)Bypass算法的動態(tài)加載,完成大寬帶業(yè)務(wù)的靈活提供,達(dá)到IP與光網(wǎng)絡(luò)資源的全局優(yōu)化,提高網(wǎng)絡(luò)的可靠性和資源利用率。 三、針對多層網(wǎng)絡(luò)中的層間故障問題,設(shè)計(jì)了基于軟件定義的層間故障協(xié)同恢復(fù)方法,在此基礎(chǔ)上提出了兩種基于多層協(xié)同的多業(yè)務(wù)恢復(fù)策略——BCLR (Bundle Cross-Layer Link Restoration)策略和SCLR(Separate Cross-Layer Link Restoration Scheme)策略。測試結(jié)果表明,與傳統(tǒng)的多層網(wǎng)絡(luò)恢復(fù)方法相比,所提的策略能有效提高層間鏈路故障的恢復(fù)成功率以及網(wǎng)絡(luò)資源利用率,使網(wǎng)絡(luò)阻塞率降低30%以上,資源利用率提高約10%。
[Abstract]:With the continuous emergence of new services, the traditional control mode of separation of IP network and optical network will lead to expensive construction cost and operation cost, due to the explosive growth of data service bandwidth. The cost is increasing, and unified control of heterogeneous networks is the key to solve these problems. According to the unified control requirements of IP network and optical network, this paper establishes a fusion network control model based on software definition, and proposes a resource optimization oriented Bypass implementation mechanism. A fault cooperative recovery scheme based on software definition is designed, and the simulation of inter-layer fault cooperative recovery strategy is completed, which verifies the correctness of the proposed scheme and strategy. The main work and innovative results are as follows: Firstly, aiming at the problems of high cost and waste of resources brought by the separation control of IP network and optical transport network, a fusion network control model based on software definition is proposed, which can exchange information between controllers. The centralized control of heterogeneous network is completed, the unified control of IP network and optical network and the optimal utilization of resources are realized. Secondly, based on the above fusion model, a resource optimization oriented Bypass implementation mechanism is proposed. Through the cooperation between IP layer and optical layer controller, the dynamic loading of Bypass algorithm can be realized. The flexible provision of large broadband services can achieve the global optimization of IP and optical network resources and improve the network reliability and resource utilization. Thirdly, aiming at the problem of interlayer fault in multi-layer network, a method of inter-layer fault cooperative recovery based on software definition is designed. On this basis, two multi-service recovery strategies based on multi-layer collaboration are proposed: BCLR bundle Cross-Layer Link restoration). Policies and SCLR(Separate Cross-Layer Link Restoration schemeThe test results show that. Compared with the traditional multi-layer network restoration method, the proposed strategy can effectively improve the success rate of inter-layer link fault recovery and network resource utilization, and reduce the network blocking rate by more than 30%. The utilization rate of resources has increased by about 10%.
【學(xué)位授予單位】：北京郵電大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TP393.06;TN929.1

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本文編號：1383921