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I
ntroDuctIon to
Pc
o
IP
6
Figure 14:
Typical.PCoIP.set.up
6. Introduction to PCoIP
6.1 What is PCoIP?
The PCoIP (PC-over-IP) protocol compresses, encrypts and
encodes the entire computing experience on a host PC. In a
PCoIP system, a PCoIP host transmits the computing experience
from a host PC (pixels only) across a standard IP network to a
remote zero client. Actual data never leaves the host PC and all
pixel transfers are encrypted with advanced security algorithms.
PCoIP supports high resolution, full frame rate 3D graphics and
HD media, multiple large displays, full USB peripheral
connectivity, and high definition audio, all connected over the
corporate LAN or WAN.
PCoIP technology allows all desktops in your enterprise to be
centrally located and managed in a data centre, while providing
remote users with full desktop performance. This may be in a
geographically remote location if necessary.
There are three essential features of PCoIP:
• Host rendering ;
• Multi-codec display processing ;
• Dynamically adapts to network conditions .
6.1.1 Host rendering
PCoIP renders display images on the host PC (or virtual
machine). Host rendering preserves the PC environment so
applications perform as they should. After an image is rendered
on the host, PCoIP broadcasts just the encrypted pixels (not
the data) across the network to the remote client. This makes
it possible to have stateless, decode-only client devices – called
zero clients – with all the benefits they bring, such as low main -
tenance, increased security, and cost savings. See 6.2 for details.
Note: This is an advantage over other remote protocols that
use client rendering. To render an image on the client; each
command from the host and response from the client must
travel across the network. This degrades an application’s
performance while it waits for image rendering to complete.