OAM (operation, Administration and Maintenance) functionality is important in public net - works for ease of network operation, for verifying network performance and to reduce network operating costs.
网络操作、管理与维护(oam)在公用网中非常重要，它能够提高网络可靠性，简化操作，降低网络运行成本。
Use wired sensors monitoring network cabling composed of large quantity, installation and maintenance costs high, poor reliability, and in some parts of the complex building things cannot wiring.
使用有线传感器组成的监测网络布线量大、安装和维护费用高、可靠性差，并且在复杂楼宇物中的某些地方无法布线。
Because the hardware, network and maintenance costs of these virtualized environments are distributed between multiple users, the overall cost is minimized for the end consumer.
因为这些虚拟环境的硬件、网络和维护成本会分摊到很多使用者身上，所以最终每个人的使用成本会降到最低。
Increased network security monitoring in the final stage of testing, in order to enhance the reliability of software quality fully and cost savings in maintenance costs later.
在测试最后阶段增加网络安全的监控，全面增强软件质量可靠性，节省后期维护费用开销。
Nowadays, diskless teaching network has been widely applied in a number of colleges and! universities for the lower costs, convenience of administration and maintenance.
无盘教学网因成本低、管理和维护方便被广泛用于各大专院校的教学。
But recently, costs of network maintenance is sharply increasing as the operators require higher service level.
然而近两年，随着运营商对服务要求的不断提高，网络维护运营成本也不断增加。
This scheme lessens efficiently multicast traffic in network, and reduces multicast tree maintenance costs, but does not cause multicast data delivery to incur too large delivery delay.
该方案有效地减少了网络中的多播通信量并降低了多播树的维护代价，却没有给多播数据传输带来太大的延迟。
This scheme lessens efficiently multicast traffic in network, and reduces multicast tree maintenance costs, but does not cause multicast data delivery to incur too large delivery delay.
该方案有效地减少了网络中的多播通信量并降低了多播树的维护代价，却没有给多播数据传输带来太大的延迟。
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