Dell Precision R5400 Remote Access Device: Networking Considerations - Page 4

The PCoIP Host Processor also adapts its traffic profile to fluctuations in available network resources - a key feature in large-scale PCoIP system deployments where high utilization and fair distribution of available network bandwidth is very important. The PCoIP Host Processor does not load the host PC in any way. The independent PCoIP Host Processor performs all the encoding and communication operations, freeing the host PC resources to perform the application and image rendering at full speed. Additionally, communication of the image is independent of the rendering, so unlike other remoting protocols, the host PC and the application are not slowed down by a reduction in network bandwidth. These features allow the PCoIP system to remain responsive and productive over a wide range of network bandwidths. Experience has shown that as network bandwidth is reduced users may become more aware they are working on a remoted system, but with the continued responsiveness and automatic static image refinement, users retain the same level of productivity. PCoIP Portal Processor The Portal Processor is designed to be integrated into any user appliance, or portal, at the desktop. This appliance is called a "portal" since it is simply a secure window back to the centralized computer. The PCoIP Portal Processor, as shown in Figure 2, decompresses and distributes the desktop-bound PCoIP packet stream to the video, audio and USB interfaces. In the return path, the PCoIP Portal Processor combines audio and USB peripheral input data for transmission back to the PCoIP Host Processor. Figure 2: PCoIP Host and PCoIP Portal Architecture PCoIP Technology To achieve the network delivery of a rich, end-user experience while using a minimum of network resources, PCoIP technology incorporates: • Dynamic image compression rates. • A fully lossless display when static. • Sophisticated network congestion management to fully utilize the available network. • Fully transparent hardware bridging for USB peripherals to ensure interoperability. • Full bi-directional audio support, up to and including 5.1 channel surround sound. • End-to-end security via wire-speed AES encryption on all data traffic between the host and portal. • No drivers, resulting in complete independence from the OS, application software, and graphics drivers. • No impact to host PC performance. All data compression and networking processing occurs on the PCoIP processor. TER0806005 Issue 1 4