面向数据中心的光网络资源管理的方法研究

发布时间：2018-06-16 05:28

本文选题：数据中心光网络 + 网络管理　；参考：《北京邮电大学》2015年硕士论文

【摘要】：数据中心是现在网络系统中的重要一环,随着网络用户需求的不断变化,数据中心的规模和复杂度随之增加,这使得传统的数据中心光网络资源的管理方法不能很好的适应新的业务需求,希望有更为智能的方法来管理光网络,能根据业务需求和特点来实现个性化的光网络资源分配策略。对于数据中心光网络管理的新需求,本文引入了软件定义网络技术,并把数据中心的服务迁移场景作为案例进行讨论。软件定义网络把全网的控制功能集中在控制器,各个节点仅需完成简单的转发功能。本文在数据中心的服务迁移中,把控制部分集总在控制器,设计了整体流程方案。本文设计实现了采用软件定义网络的数据中心光网络的网络管理系统。与ASON的网管相比,两者的异同如下： 1)两者在网络信息展示方面相似,都需要可视化显示网络拓扑、收集统计网络信息、实时反映网络故障报警消息等； 2)两者的不同在于网管与控制平面的通信协议及部分分工不同,在使用软件定义网络技术时,需要对协议进行扩展,以适应光网络。因此,在设计实现使用软件定义网络的数据中心光网络网管系统时,完成了如下3个部分： 1)实现常规的网管系统的信息显示功能； 2)把部分控制功能交给控制器,并通过接口获得计算结果,将结果展示给用户。现在软件定义网络使用最广泛的协议是openflow协议,但openflow协议没有明确定义控制器和光网管之间的北向接口。所以在实现光网络管理系统时,本文根据openflow协议中控制器与交换机之间的南向接口,进行了控制器与网管之间北向接口的扩展,以完成网管与控制器的通信功能； 3)实现节点设备配置等人工配置功能,用于网络管理者手动设置网络节点。
[Abstract]:Data center is an important part of network system nowadays. With the continuous change of network user's demand, the scale and complexity of data center increase with it. This makes the traditional data center optical network resource management method can not adapt to the new business requirements, hope to have a more intelligent way to manage the optical network, The resource allocation strategy of individual optical network can be realized according to the service requirement and characteristics. For the new requirement of data center optical network management, this paper introduces software definition network technology, and discusses the service migration scenario of data center as a case study. The software defines the network to concentrate the whole network control function in the controller, each node only needs to complete the simple forwarding function. In the data center service migration, the control part is integrated in the controller, and the overall flow scheme is designed. This paper designs and implements the network management system of data center optical network which is defined by software. Compared with Ason network management, the similarities and differences between them are as follows: 1) both of them are similar in network information display, need to visualize network topology, collect network information, and reflect network fault alarm information in real time. 2) the difference between them lies in the difference of communication protocol and partial division of labor between network management and control plane. When using software to define network technology, it is necessary to extend the protocol to adapt to optical network. Therefore, in the design and implementation of the data center optical network management system using software to define the network, the following three parts are completed: 1) realizing the information display function of the conventional network management system; 2) give part of the control function to the controller, get the calculation result through the interface, and show the result to the user. The most widely used protocol for software-defined networks is the openflow protocol, but the openflow protocol does not clearly define the northward interface between the controller and the optical network management. So in the realization of optical network management system, according to the southern interface between controller and switch in openflow protocol, this paper extends the north interface between controller and network management, in order to complete the communication function between network management and controller. 3) realize manual configuration function such as node equipment configuration, which is used for network manager to set network node manually.
【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TP308;TN929.1

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