The example below shows the difference that this network design has on the data traffic for each PixLite 16 Mk2. This is achieved using a networking strategy called Internet Group Management Protocol Snooping. Multicasting with a correct network configuration allows the universes to be sent only down the relevant ports on the switch. Consequently, the controller may not be able to keep up with the sheer volume of data, so some packets may be dropped, resulting in a poor quality LED screen. This will then result in a large volume of irrelevant traffic passing through each PixLite’s processor. If the network is delivering all 192 universes to both controllers, then each controller may need to process all 192 universes to determine whether each is needed. Each PixLite 16 Mk2 is set up to control 96 universes of pixels. They are both operating on the same network, along with the sending software. In the example shown below, two PixLite 16 Mk2 controllers are being used to drive a large LED screen. If a network is not designed and configured properly, it could result in dropped packets and/or unstable connections. If the display consists of many controllers, with many universes of data, this can be a significant task for the network to achieve. In a pixel light display, the network needs to transport large amounts of data from the sending software to the pixel controllers at high speeds.
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