IP-RAN SDN自动部署技术实现研究
发布时间：2019-06-24 15:22
【摘要】：伴随着移动回传网络的的快速发展和网络应用业务的日益多样化,IP RAN (Internet Protocol Radio Access Network,无线接入网络IP化,在国外的叫法是Mobile Backhaul)作为一种比较完美的承载技术,运用十分广泛,世界主流运营商纷纷采用IP RAN来承载各自的综合业务。IP RAN基于IP/MPLS技术标准体系可以被广泛应用于运营商的城域网、骨干网和承载网络中。IP RAN具有承载效率高,支持点到多点间通信,扩展性好等优点,也能满足承载网络在高带宽提供、三层网络功能提供、IP化和带宽化等业务要求,可以很好的作为3G (3rd Generation,第三代数字通信)及LTE (Long Term Evolution,3GPP长期演)基站的回传网络，但是随着3GLTE的迅猛发展，，尤其是近些年4G (4rd Generation,第四代数字通信)的突起,IP RAN网络的高可用性和运维复杂等问题逐渐凸现出来。同时由于受制于传统网络设备的“垂直式”封闭设计,对新业务响应慢,对于客户的需求反馈也比较滞后。本文通过研究和运用SDN技术特性及NETCONF技术来解决IP RAN网络现期所遇到的运维难和新业务部署慢这两个主要问题,从而达到自动部署IP RAN网络的目的。针对IP RAN网络运维,本文引入NETCONF这一标准协议作为SDN的南向接口,更加灵活地调度网络设备接口。同时,为了能够在IP RAN网络中更加准确地查找设备和快速定位故障,本文引入SDN控制器技术来获取IP RAN网络的全局网络拓扑,集中管理设备和故障排查,能够大大减少人工的参与,从而减低IP RAN网络运维难度,进一步提升自动部署IP RAN网络的能力。针对IP RAN网络新业务部署,本文通过运用SDN控制器来灵活定制业务服务,将业务APP化且能够相互独立部署,弱化业务之间的耦合。同时,本文采用NETCONF技术来操作设备开放的接口,打破原有设备的封闭式设计,无需协商开放新接口和更换设备的运行环境,大大缩短新业务的部署周期,从而能加快自动部署IP RAN网络的速度。本论文根据上述方案,设计并实现了基于SDN的IP RAN自动部署,为了验证此系统的可行性,本文使用多台虚拟设备来模拟L2VPN接入L3VPN的组网测试,其中使用SOUPUI来替代SDN控制器集中部署业务,使用TestCenter测试仪打流来测试组网的稳定性,使用NETCONF作为SDN控制器与网络设备的接口调度协议。经上述测试,在SDN的控制下的L2VPN和L3VPN能够相互通信,从而验证了IP RAN SDN组网的正确性,同时50ms左右的故障恢复时间验证了IP RAN SDN组网的稳定性和健壮性,测试结果达到了预期效果,该系统在某项目中的成功应用也进一步验证了SDN技术实现自动部署IP RAN网络的可行性。
[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.
【学位授予单位】：东南大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TP393.0
本文编号：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.
【学位授予单位】：东南大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TP393.0
【参考文献】
相关期刊论文 前10条
1 刘楚;黄永亮;王海军;王光全;;基于SDN的本地综合承载传送网技术研究[J];邮电设计技术;2014年04期
2 郭林;王俏妮;;SDN标准进展研究[J];邮电设计技术;2014年04期
3 高揆;吴军平;;基于MPLS技术的IP RAN研究[J];电子测试;2014年01期
4 刘晶;;IP RAN保护方案的研究与设计[J];光通信研究;2013年06期
5 吴海波;王泉中;;分组传送网络的业务承载方案分析与部署规划[J];邮电设计技术;2013年11期
6 范春萍;王海龙;;浅析分组传送网的业务承载方案[J];中国新通信;2013年21期
7 王茜;赵慧玲;解云鹏;;SDN标准化和应用场景探讨[J];中兴通讯技术;2013年05期
8 吴承治;罗正华;;可编程的网络——软件定义网络[J];现代传输;2013年04期
9 ;SDN发展历程回顾[J];中国教育网络;2013年08期
10 陈晶鑫;耿忠;;IPRAN承载网LTE业务的业务部署[J];电子测试;2013年12期
本文编号：2505166
本文链接：https://www.wllwen.com/guanlilunwen/ydhl/2505166.html
