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。

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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。

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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。

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Dr Beeching said half the railway network was not carrying sufficient traffic to cover its maintenance costs.

BBC: Shadow falls on rural railways

Verizon has been replacing high-maintenance portions of its residential copper network with fiber optics to provide enhanced services and to reduce ongoing repair costs.

ENGADGET: Verizon adds 'record-high' 2.1 million subscribers in Q4 2012, but still makes a loss