本文设计了一个网络模块，可以实现流量计费、监控中心、作业管理、在线设备管理、预约管理等。

A network management module which implements traffic account, monitor and control center, lab homework management, on-line equipment management and the reservation management is designed.

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广州电信网管维护中心是广州电信网络运行维护作业层的核心部门。

Network Management and Maintenance Center (NMMC) of Guangzhou Telecom is the core department of local network operation and maintenance.

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