Control method of video transmission device and multi-port forwarding device

The embodiment of the invention provides a control method of a video transmission device and a multi-port forwarding device. The multi-port forwarding device is used for connecting one or more transmission devices, and comprises: a concentrator chip which comprises a plurality of input ports; a power-off module which is used for controlling the transmission equipment connected with the multi-portforwarding equipment to be powered off; a power-on module which corresponds to the power-off module and is used for controlling the transmission equipment connected with the multi-port forwarding equipment to be powered on; and a control module which is used for controlling the power-off module and the power-on module according to a control signal so as to control the transmission equipment connected with the multi-port forwarding equipment to be switched between power-off and power-on. 本说明书实施例提供一种视频传输设备的控制方法以及多端口转发设备。所述多端口转发设备用于连接一个或多个传输设备，所述多端口转发设备包括：集线器芯片，所述集线器芯片包括多个输入端口；断电模块，所述断电模块用于控制与所述多端口转发设备连接的所述传输设备断电；上电模块，所述