All the analytics (computation) is performed at the edge in the camera. The metadata (results) are stored in the cloud. This hybrid approach means we can offer cool functionality like motion search, heat maps, and motion based retention with low bandwidth usage. This allows for deployments on small WAN links like cellular.
When you create a motion search, dashboard is querying the cloud's store of metadata, the table that is created at the bottom of the screen is derived from this. When you click an entry it then pulls the associated video from the camera and streams it to you.
What this means is the amount of up-link WAN bandwidth needed by a camera is variable dependent on the amount of metadata. The maximum it will be (design limit) is 50Kbps. We expect a typical camera to average about 11Kbps, and a camera that sees very little activity to average <3Kbps.