I have 3 layers: origin and destination point shapefiles and network line shapefiles. I want to calculate the shortest path on the network between the origin (250 features) and destinations (20 features) by using the v.net.path command. I dont understand what the CENTRE POINT LAYER and NAME OF FILE CONTAINING START AND END POINTS is (as indicated on the photo) and I couldnt find a clear description about it. Could someone please explain?

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