發(fā)布時間：2018-11-23 11:18

【摘要】：隨著因特網(wǎng)的發(fā)展,用戶對網(wǎng)絡(luò)可靠性的要求也越來越高。NSF(Non-Stop Forwarding:不間斷轉(zhuǎn)發(fā))是一項重要的HA(High Availability:高可靠性)技術(shù)。它可以保證路由器控制層面出現(xiàn)故障時,數(shù)據(jù)轉(zhuǎn)發(fā)仍然正常進行,從而保證業(yè)務(wù)短時間內(nèi)不中斷。而NSR(Non-Stop Routing:不間斷路由)是比NSF可靠性更高的一種技術(shù),它在NSF的硬件結(jié)構(gòu)基礎(chǔ)上增加了軟件層面的備份機制。NSF雖然可以保證數(shù)據(jù)轉(zhuǎn)發(fā)的持續(xù)性,但無法保證故障期間轉(zhuǎn)發(fā)表的正確性,而NSR的目標是始終保持轉(zhuǎn)發(fā)的可用性與正確性,最小化本端故障給網(wǎng)絡(luò)業(yè)務(wù)造成的影響。 MPLS(Multi-Protocol Label Switching)是一種在骨干網(wǎng)中廣泛使用的交換技術(shù),使用標簽標識轉(zhuǎn)發(fā)路徑,可以在無連接的網(wǎng)絡(luò)中引入連接模式的優(yōu)點。LDP(Label Distribution Protocol)是MPLS的一種控制平面協(xié)議,負責為MPLS網(wǎng)絡(luò)生成標簽轉(zhuǎn)發(fā)路徑。本課題來源于某公司‘'MPLS LDP模塊支持NSR特性”項目,本文詳細分析了其可行性原理與LDP各運行數(shù)據(jù)在批量備份和實時備份下的必要性與時機,給出了一種解決方案并測試驗證了其有效性。
[Abstract]:With the development of Internet, the requirement of network reliability is becoming higher and higher. (. NSF (Non-Stop Forwarding: uninterrupted forwarding) is an important HA (High Availability: high reliability) technology. It can ensure that the router control level failure, the data forwarding is still normal, so as to ensure that the service will not be interrupted in a short period of time. NSR (Non-Stop Routing: uninterrupted routing) is a technology with higher reliability than NSF. It adds software backup mechanism to the hardware structure of NSF. NSF can guarantee the continuity of data forwarding. However, it is impossible to guarantee the correctness of forwarding table during failure, and the goal of NSR is to keep the availability and correctness of forwarding at all times, and to minimize the impact of local failure on network services. MPLS (Multi-Protocol Label Switching) is a kind of switching technology widely used in backbone network. The advantage of using label to identify forwarding path and introducing connection mode in connectionless network is that. LDP (Label Distribution Protocol) is a kind of control plane protocol of MPLS. Responsible for generating tag forwarding path for MPLS network. This topic comes from a company 'MPLS LDP module supporting NSR feature' project. This paper analyzes its feasibility principle and the necessity and opportunity of LDP running data in batch backup and real time backup. A solution is presented and tested to verify its effectiveness.
【學位授予單位】：南京理工大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TP393.06

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本文編號：2351398