Method in use for determining topological structure of cable TV HFC network
A network topology, cable TV technology, applied in the direction of data exchange network, electrical components, cable transmission adaptation, etc.
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[0038] Specific embodiments: see Fig. 1, the partial diagram of HFC network of the present invention.
[0039] 1. The network management computer sends out the command to clear the netlist of the network equipment. In order to ensure that the HFC network equipment regenerates new netlist data, this command can be sent several times to ensure that the netlist of all devices on the network is cleared accurately.
[0040] 2. The network management computer designates device A on the network to forward topology data
[0041] Step 1: After device A receives the forwarding command from the network management computer, it opens the uplink and downlink channels, and sends the device address of the device to the downlink channel in broadcast mode. At the same time, this data is also sent on the uplink channel. After sending Close the up and down channels.
[0042] The second step: the uplink data arrives at the rack demodulator for demodulation and then sent to the network management ...
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