By e - mail , we can communicate with any network user in cheap , reapid way wherever the users are , the e - mail can include text , image , audio or other multimedia information , and server system is the key part 通过电子邮件，可以以非常低廉的价格、非常快速的方式，与世界上任何一个网络用户联络，这些电子邮件可以包含文字、图像、声音或其它多媒体信息。而服务器系统正是电子邮件系统最为核心的部分。
Because hackers attack the personal network users with higher and higher frequency and by more and more expert means , the security - protection technology , pointing to pc , has become the focus of research field for current network security 随着全球internet用户数量的激增，黑客对个人网络用户的攻击次数越来越频繁，攻击的手段也越来越先进，针对个人主机的安全防护技术已经成为当前网络安全研究领域的重点。
There are many techniques based on netflow to analyse the traffic flow and provide accounting and billing information of the network service . it has been applied to monitor behavior of network user and traffic flow and usage of network services 目前netflow技术用于对ip网络通信流量进行分析和计量,为网络的运行提供准确的统计数据,在园区网用户行为监控、流量监控、网络服务使用状况监控等方面有很成熟的应用。
10 years professional experience in production skate , owned plants 5000 8372 . machinery production water production , advertising and products to network users reputation direct , efficient , low - cost , and therefore price 20 % lower than the same product category and above 10年专业溜冰鞋生产经验，自有厂房5000米2 ，机器制作流水生产，产品以网络广告与用户口碑直销，高效率，低成本，因此售价比同类产品低20 %以上。
However , even recently , these are not many excellent solutions . it is because that network designers have left few control interfaces in the lower layer of the network , and network users have strong unwillingness to make major changes on the accustomed protocols 而在上层网络，人们虽然一直致力于研究应用层的服务质量保证及其相关的协议问题，但这些大多只是为了个别的业务类型和用户服务，对整体的网络性能贡献有限。
Java language was used as the programming tool , and we gather data which is needed in the performance management from the mib databases in the router by snmp protocol . this system provide web adery of network users by asp technology 该系统采用了java语言进行编写，通过snmp协议对路由器上的mib数据库数据进行定时采集，经过数据整理，得到性能管理所需的各项指标数据，通过使用asp技术，向网络用户提供了网络性能的web查询。
Since ip network users are requiring better quality of network services , the industry promotes concept of " carrier grade ip network " . as a result , introduction of tmn ( telecommunication management network ) to ip network management has already become hotspot of current research of ip network 随着ip网络用户对网络服务质量的要求逐渐提高，业界提出了“电信级的ip网络”的概念，因此，将tmn ( telecommunicationsmanagementnetwork )思想引入ip网络管理领域已成为当前ip网络管理研究的热点。
