| 摘要 |
A method is disclosed of centralized Power over Ethernet network shutdown, that comprises the steps of:
- sending (19) from a centralized management unit (1, 2) through said network a shutdown binary signal, a first value of which commands a shutdown, and the second value of which authorizes a restart;
- detecting (20) the value of said shutdown signal, in a network element;
- then shutting down (22, 24) at least some of the functions of said network element and propagating the shutdown signal, if the signal has its first value, or authorizing all the functions of said network element if the signal has its second value. The shutdown signal can be constituted by a Power over Ethernet voltage usually used for remotely supplying power to network elements that can be remotely powered. The presence of a Power over Ethernet voltage commands a shutdown, and commands the propagation of a shutdown signal; whereas the absence of the Power over Ethernet voltage authorizes all the functions of said network element.
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