The mastery of network simulative tools is important for network pursuers due to increasing of complexity , scale of networks . free ns is amply discussed in this paper 摘要通信网络的日新月异，各种网络方案和协议日趋复杂、网络规模日趋庞大，对网络研究人员而言，掌握网络仿真的重要性是不言而喻的。着重探讨网络仿真免费软件ns 。
When the network scope extends continually , using through mistake mode or for mistake purpose , the network security affaires emerge in endlessly . the loss from the affairs is paid attention by people increasingly 在网络规模不断增大的同时,因为以错误的方式或为达到错误的目的而使用,所引起的网络安全事件造成的损失也日益引起人们的重视。
With the continuous increase of network scale and speed , to design the network traffic burst anomaly detection algorithms which are required to accurately analyze the massive traffic data in real time is really a challenge 而随着网络规模和速度的不断增加,流量突发异常检测算法需要实时准确地分析处理海量的网络业务量数据,具有很大的挑战性。
With the increasing development of telecommunication network and telecommunication service requests , the condition of the signaling no . 7 network will play a more and more important role in the quality of the whole telecommunication network 随着电信网络规模不断扩大、电信业务的增加，七号信令网络的畅通与否直接关系到整个电信网的通信质量。
As the evolution of applications and the expansion of network scale , the traditional pattern of the exploitation and maintenance of the system becomes more and more difficult to meet the needs of network computing 本文所研究的移动智能体技术属于后者。随着应用的不断深入，网络规模的不断扩大，传统的系统开发与维护模式已越来越难以适应发展的需求。
As networks have grown in complexity as well as in size , there is an increasing need for reliable and economical services to transport information . network management is playing an important role in the development of networks 随着网络规模和复杂性的增加，为了向网络用户提供既可靠又经济的信息传输服务，网络管理已成为现代网络发展中不可缺少的一部分。
Based on this condition , an approach efficiently repress the worm in large - scale network is proposed , which is to decrease the scale of network by division , as well as detect and quarantine the worm on the border of network 在此基础上，为了有效地遏制蠕虫在大规模网络上的爆发，提出了对网络进行划分以减小网络规模的方法，在划分边界上对蠕虫进行检测和隔离。
As the expansion of network scale and the service provided by it becomes more complex , the traditional pattern of network management and information retrieval scheme becomes more and more difficult to meet the needs of network users 随着网络规模的不断扩大，网络提供服务的日益多样性，传统的网络管理模式和简单的信息访问策略已越来越难以适应用户对网络发展的需求。
At the same time , these systems set a higher request to the network , the enterprise network scale unceasingly expands , the complexity increases , so the network management becomes one essential part in the whole enterprise network platform 同时,这些系统的正常运行对网络提出了更高的要求,企业网络规模不断扩大,复杂性不断增加,网络管理就成为企业整个网络系统中关键部分。
As the largest fixed - line network service provider , china telecomm is a world leader not only in brand name , network scale and technology , but also the customer base and resource , which provide a great foundation for the future development 作为世界最大固网运营商? ?中国电信来说,无论是品牌、网络规模和技术,还是客户资源都居于世界前列,这为中国电信的未来发展提供了强大物质基础。
