“网管”是网络管理的简称。它集网络运行监视、网络性能测试与控制、网络故障处理、网络安全等功能于一体,是网络操作者和管理者监督、维护和保障网络正常运行的有力工具。若一个运行中的网络没有网管系统的管理,好比在大海 “Network Management” is the abbreviation of network management. It integrates functions such as network operation monitoring, network performance testing and control, network troubleshooting, and network security. It is a powerful tool for network operators and managers to supervise, maintain and ensure the normal operation of the network. If a network in operation without the management of network management system, such as in the sea