单 位：
河北北方学院教育技术与信息中心;亳州职业技术学院信息工程系
关键词：
软件定义网络;网络虚拟化;动态路径规划;快速故障移转
摘 要：
目的随着云计算等新技术应用的普及,需要一个庞大的网路环境支撑其大量的封包传递,而这种网路设定已超越传统人工设定所能负担的范围,为了解决此问题,由软件自动对网络装置进行维护,可以减少资源浪费。方法开发1套基于局域网的软件定义网路解决方案:Peregrine(虚拟移动网络),主要提供3项核心技术,分别为网路虚拟化、动态路径规划及快速故障移转。结果可使CPU资源不浪费在处理封包之封装及解封装的动作,进而提升CPU使用效率及网路的产能,提高了带宽利用率及网络效能,通过简单的实际测试,证明Peregrine的动态路径规划技术在流量的负载平衡方面具有良好的效能。结论搭建网络环境较为容易,可有效提升CPU使用效率,且无需掌控所有设备的信息;可动态调整数据传输路径,快速恢复网路的连通性;可有效地将流量分散至整个网络上,达到流量负载平衡的目标。大幅降低网路设备的硬体成本并且可以应用到各种场所,扩大设备使用效率,为今后解决网络闭塞等应用问题提供了解决方案。
译 名：
LAN-Based Software-Defined Network Technology
作 者：
CHENG Yuan-yuan;DONG Hui;ZHANG Xiao-guang;Bozhou Vocational and Technical College;Hebei North University;
关键词：
software-defined network;;network virtualization;;dynamic path planning;;fast failover
摘 要：
Objective With the popularity of cloud computing and other new applications,it requires a giant network environment to support its large number of packets transmitted,and this goes beyond the traditional network range manually affordable.To solve this problem,a software was developed to automatically maintain the network device and reduce the waste of resources.Methods This paper developed a LAN-based software-defined networking solution:Peregrine(mobile virtual network),which mainly provided three core technologies,namely,network virtualization,dynamic route planning and fast failover.Results The technology allowed CPU resources not to be wasted in the operation of packaging and unpackaging,thus enhancing the efficient use of CPU and network capacity and improving bandwidth utilization and network performance.By simple practical tests,the Peregrine dynamic path planning demonstrated a good performance on balance of traffic load.Conclusion It is easy to build the network environment with which the CPU efficiency can improve effectively without control of the information for all devices.And the network can dynamically adjust the transmission path of data and quickly recover the web connectivity,thus effectively dispersing traffic to the entire network and achieving the goal of balancing the traffic load.Thereby significantly reducing the cost of network hardware devices,applying to a variety of places and expanding the equipment efficiency provide a solution for future application problems,such as network occlusion,etc.
