服务器、交换机等用电设备出现了故障，不能正常供电时还需要依靠网管人员通过人工重启才能解决问题。
If the server and switches get out of the order, it must rely on the website operators to restart to solve the problem.
多数人承认随着新世纪的到来，交换机不大可能丢失拨号音，会继续提供电话处理，但观察家们告诫说一些重要的附属功能可能会失去。
While most admit that switches aren't likely to lose dial tone and will continue to provide call processing as the new century kicks off, they caution the important adjunct functionality may be lost.
一经改进，新的以太网供电设备是一个全功能的IP通信枢纽和网络交换机，可通过以太网为高速球型摄像机，电暖炉，和鼓风机供电。
One enhancement, the new Commander PoE, is a full-featured IP communications hub and network switch that provides power over Ethernet to high-speed domes, heaters, and blowers.
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