IP-RAN SDN自動(dòng)部署技術(shù)實(shí)現(xiàn)研究
發(fā)布時(shí)間：2019-06-24 15:22
【摘要】：伴隨著移動(dòng)回傳網(wǎng)絡(luò)的的快速發(fā)展和網(wǎng)絡(luò)應(yīng)用業(yè)務(wù)的日益多樣化,IP RAN (Internet Protocol Radio Access Network,無(wú)線接入網(wǎng)絡(luò)IP化,在國(guó)外的叫法是Mobile Backhaul)作為一種比較完美的承載技術(shù),運(yùn)用十分廣泛,世界主流運(yùn)營(yíng)商紛紛采用IP RAN來(lái)承載各自的綜合業(yè)務(wù)。IP RAN基于IP/MPLS技術(shù)標(biāo)準(zhǔn)體系可以被廣泛應(yīng)用于運(yùn)營(yíng)商的城域網(wǎng)、骨干網(wǎng)和承載網(wǎng)絡(luò)中。IP RAN具有承載效率高,支持點(diǎn)到多點(diǎn)間通信,擴(kuò)展性好等優(yōu)點(diǎn),也能滿足承載網(wǎng)絡(luò)在高帶寬提供、三層網(wǎng)絡(luò)功能提供、IP化和帶寬化等業(yè)務(wù)要求,可以很好的作為3G (3rd Generation,第三代數(shù)字通信)及LTE (Long Term Evolution,3GPP長(zhǎng)期演)基站的回傳網(wǎng)絡(luò)，但是隨著3GLTE的迅猛發(fā)展，，尤其是近些年4G (4rd Generation,第四代數(shù)字通信)的突起,IP RAN網(wǎng)絡(luò)的高可用性和運(yùn)維復(fù)雜等問(wèn)題逐漸凸現(xiàn)出來(lái)。同時(shí)由于受制于傳統(tǒng)網(wǎng)絡(luò)設(shè)備的“垂直式”封閉設(shè)計(jì),對(duì)新業(yè)務(wù)響應(yīng)慢,對(duì)于客戶的需求反饋也比較滯后。本文通過(guò)研究和運(yùn)用SDN技術(shù)特性及NETCONF技術(shù)來(lái)解決IP RAN網(wǎng)絡(luò)現(xiàn)期所遇到的運(yùn)維難和新業(yè)務(wù)部署慢這兩個(gè)主要問(wèn)題,從而達(dá)到自動(dòng)部署IP RAN網(wǎng)絡(luò)的目的。針對(duì)IP RAN網(wǎng)絡(luò)運(yùn)維,本文引入NETCONF這一標(biāo)準(zhǔn)協(xié)議作為SDN的南向接口,更加靈活地調(diào)度網(wǎng)絡(luò)設(shè)備接口。同時(shí),為了能夠在IP RAN網(wǎng)絡(luò)中更加準(zhǔn)確地查找設(shè)備和快速定位故障,本文引入SDN控制器技術(shù)來(lái)獲取IP RAN網(wǎng)絡(luò)的全局網(wǎng)絡(luò)拓?fù)?集中管理設(shè)備和故障排查,能夠大大減少人工的參與,從而減低IP RAN網(wǎng)絡(luò)運(yùn)維難度,進(jìn)一步提升自動(dòng)部署IP RAN網(wǎng)絡(luò)的能力。針對(duì)IP RAN網(wǎng)絡(luò)新業(yè)務(wù)部署,本文通過(guò)運(yùn)用SDN控制器來(lái)靈活定制業(yè)務(wù)服務(wù),將業(yè)務(wù)APP化且能夠相互獨(dú)立部署,弱化業(yè)務(wù)之間的耦合。同時(shí),本文采用NETCONF技術(shù)來(lái)操作設(shè)備開放的接口,打破原有設(shè)備的封閉式設(shè)計(jì),無(wú)需協(xié)商開放新接口和更換設(shè)備的運(yùn)行環(huán)境,大大縮短新業(yè)務(wù)的部署周期,從而能加快自動(dòng)部署IP RAN網(wǎng)絡(luò)的速度。本論文根據(jù)上述方案,設(shè)計(jì)并實(shí)現(xiàn)了基于SDN的IP RAN自動(dòng)部署,為了驗(yàn)證此系統(tǒng)的可行性,本文使用多臺(tái)虛擬設(shè)備來(lái)模擬L2VPN接入L3VPN的組網(wǎng)測(cè)試,其中使用SOUPUI來(lái)替代SDN控制器集中部署業(yè)務(wù),使用TestCenter測(cè)試儀打流來(lái)測(cè)試組網(wǎng)的穩(wěn)定性,使用NETCONF作為SDN控制器與網(wǎng)絡(luò)設(shè)備的接口調(diào)度協(xié)議。經(jīng)上述測(cè)試,在SDN的控制下的L2VPN和L3VPN能夠相互通信,從而驗(yàn)證了IP RAN SDN組網(wǎng)的正確性,同時(shí)50ms左右的故障恢復(fù)時(shí)間驗(yàn)證了IP RAN SDN組網(wǎng)的穩(wěn)定性和健壯性,測(cè)試結(jié)果達(dá)到了預(yù)期效果,該系統(tǒng)在某項(xiàng)目中的成功應(yīng)用也進(jìn)一步驗(yàn)證了SDN技術(shù)實(shí)現(xiàn)自動(dòng)部署IP RAN網(wǎng)絡(luò)的可行性。
[Abstract]:With the rapid development of mobile return network and the increasing diversification of, IP RAN (Internet Protocol Radio Access Network, wireless access network IP, it is called Mobile Backhaul) as a perfect bearing technology, which is widely used in the world. IP RAN based on IP/MPLS technology standard system can be widely used in the metropolitan area network of operators. . IP RAN in backbone network and bearing network has many advantages, such as high carrying efficiency, supporting point-to-multipoint communication, good expansibility and so on. It can also meet the service requirements of high bandwidth provision, three-layer network function provision, IP and bandwidth, and can be used as 3G (3rd Generation, third generation digital communication) and LTE (Long Term Evolution,3GPP long-term performance base station return network, but with the rapid development of 3GLTE, Especially in recent years, the problems of high availability and complex operation and maintenance of 4G (4rd Generation, fourth generation digital communication), IP RAN network have gradually emerged. At the same time, due to the "vertical" closed design of traditional network equipment, the response to new services is slow, and the demand feedback for customers is also lagging behind. In this paper, the characteristics of SDN technology and NETCONF technology are studied and applied to solve the two main problems of IP RAN network, such as the difficulty of operation and maintenance and the slow deployment of new services, so as to achieve the purpose of automatic deployment of IP RAN network. Aiming at IP RAN network operation and maintenance, this paper introduces the standard protocol of NETCONF as the southbound interface of SDN, and schedules the network device interface more flexibly. At the same time, in order to find the equipment and locate the fault more accurately in IP RAN network, this paper introduces SDN controller technology to obtain the global network topology of IP RAN network, centrally manages the equipment and fault detection, which can greatly reduce the manual participation, thus reduce the difficulty of IP RAN network operation and maintenance, and further improve the ability of automatic deployment of IP RAN network. Aiming at the new service deployment of IP RAN network, this paper uses SDN controller to flexibly customize the service, APP the service and can deploy each other independently, and weakens the coupling between the services. At the same time, this paper uses NETCONF technology to operate the open interface of the equipment, breaks the closed design of the original equipment, does not need to negotiate the opening of the new interface and the operating environment of the replacement equipment, greatly shortens the deployment cycle of the new service, so as to speed up the automatic deployment of the IP RAN network. According to the above scheme, this paper designs and implements the automatic deployment of IP RAN based on SDN. In order to verify the feasibility of this system, this paper uses several virtual devices to simulate the networking test of L2VPN access to L3VPN, in which SOUPUI is used instead of SDN controller centralized deployment service, TestCenter tester is used to stream to test the stability of networking, and NETCONF is used as the interface scheduling protocol between SDN controller and network equipment. Through the above tests, L2VPN and L3VPN under the control of SDN can communicate with each other, thus verifying the correctness of IP RAN SDN networking. At the same time, the fault recovery time of 50ms verifies the stability and robustness of IP RAN SDN networking, and the test results achieve the desired results. The successful application of the system in a project further verifies the feasibility of automatic deployment of IP RAN network by SDN technology.
【學(xué)位授予單位】：東南大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：TP393.0
本文編號(hào)：2505166
[Abstract]:With the rapid development of mobile return network and the increasing diversification of, IP RAN (Internet Protocol Radio Access Network, wireless access network IP, it is called Mobile Backhaul) as a perfect bearing technology, which is widely used in the world. IP RAN based on IP/MPLS technology standard system can be widely used in the metropolitan area network of operators. . IP RAN in backbone network and bearing network has many advantages, such as high carrying efficiency, supporting point-to-multipoint communication, good expansibility and so on. It can also meet the service requirements of high bandwidth provision, three-layer network function provision, IP and bandwidth, and can be used as 3G (3rd Generation, third generation digital communication) and LTE (Long Term Evolution,3GPP long-term performance base station return network, but with the rapid development of 3GLTE, Especially in recent years, the problems of high availability and complex operation and maintenance of 4G (4rd Generation, fourth generation digital communication), IP RAN network have gradually emerged. At the same time, due to the "vertical" closed design of traditional network equipment, the response to new services is slow, and the demand feedback for customers is also lagging behind. In this paper, the characteristics of SDN technology and NETCONF technology are studied and applied to solve the two main problems of IP RAN network, such as the difficulty of operation and maintenance and the slow deployment of new services, so as to achieve the purpose of automatic deployment of IP RAN network. Aiming at IP RAN network operation and maintenance, this paper introduces the standard protocol of NETCONF as the southbound interface of SDN, and schedules the network device interface more flexibly. At the same time, in order to find the equipment and locate the fault more accurately in IP RAN network, this paper introduces SDN controller technology to obtain the global network topology of IP RAN network, centrally manages the equipment and fault detection, which can greatly reduce the manual participation, thus reduce the difficulty of IP RAN network operation and maintenance, and further improve the ability of automatic deployment of IP RAN network. Aiming at the new service deployment of IP RAN network, this paper uses SDN controller to flexibly customize the service, APP the service and can deploy each other independently, and weakens the coupling between the services. At the same time, this paper uses NETCONF technology to operate the open interface of the equipment, breaks the closed design of the original equipment, does not need to negotiate the opening of the new interface and the operating environment of the replacement equipment, greatly shortens the deployment cycle of the new service, so as to speed up the automatic deployment of the IP RAN network. According to the above scheme, this paper designs and implements the automatic deployment of IP RAN based on SDN. In order to verify the feasibility of this system, this paper uses several virtual devices to simulate the networking test of L2VPN access to L3VPN, in which SOUPUI is used instead of SDN controller centralized deployment service, TestCenter tester is used to stream to test the stability of networking, and NETCONF is used as the interface scheduling protocol between SDN controller and network equipment. Through the above tests, L2VPN and L3VPN under the control of SDN can communicate with each other, thus verifying the correctness of IP RAN SDN networking. At the same time, the fault recovery time of 50ms verifies the stability and robustness of IP RAN SDN networking, and the test results achieve the desired results. The successful application of the system in a project further verifies the feasibility of automatic deployment of IP RAN network by SDN technology.
【學(xué)位授予單位】：東南大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：TP393.0
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