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PCoIP Technology User Guide (Vol I)

8 Network Characterization

This section outlines basic network impact for

PCoIP Technology implementations.

Note: This base analysis is conservative and

weighted towards a perception free experience.

Administrators must study use case(s) typical for

their deployment and adjust network

requirements accordingly.

User Categories

It is important to understand the user experience

desired to determine the network footprint

required. The following are generalized user

categories from lowest to highest bandwidth

utilization:

• Task Worker - Primarily text entry into forms

• Knowledge Worker – Uses standard office

applications such as word processing,

spreadsheets, and presentation tools. Uses

web, reads and writes emails, etc.

• Performance User/Basic CAD – Similar to

Knowledge Worker with the exception of

occasional use of high-end visual applications,

and may perform analysis on static images

• Video Editing – Similar to performance user,

but requires consistent high-quality multimedia

playback

• Extreme User – Discerning users of high-end

visual applications such as 3D CAD rendering,

video editing or animation. Typically content

has a higher resolution and the user performs

technical analysis by dynamically manipulating

images (CAD design, healthcare MRI/CAT

scan analysis etc)

The Enterprise Networks White Paper [3] also

provides a primer on the network requirements

for PCoIP Technology deployments.

Bandwidth Planning

Bandwidth planning requires understanding the

desired user experience. The following are

conservative considerations for bandwidth

planning:

• For conservative planning, plan using the

bandwidth a user needs during a worst case

congestion period

• Conservative, worst-case scenario is

continuously changing full screen

TER0806003 Issue 1

• Plan for worst-case network congestion during

simultaneous worst-case users

• Minimum Image Quality and Maximum Initial

Image Quality settings define user experience

during the instances of congestion (see

Section 7 Imaging Considerations)

• Minimum acceptable frame rate is 10-30 fps

for most users

Planning Basics

The following generalities are provided as a

starting point for planning network requirements

of a PCoIP System:

• More graphically demanding applications

command higher bandwidth usage than less

graphically demanding applications

• User applications and scenarios vary

• Users will likely not require peak bandwidth all

at the same time

• Some users are more critical then others –

acceptable performance is subjective

• If the network is rarely congested, no one will

experience degradation

Conservative Planning

To ensure a perception free experience, it is

recommended to begin with conservative

measures when planning the required network

for PCoIP Technology:

• Provision network with the sum of all Planning

Bandwidths plus 10%

• Knowledge Workers and below can use 100

Mbps connections, while demanding user

categories should use 1 Gbps connections to

take advantage of available bandwidth,

Once a baseline is established, there are more

application characteristics to consider:

• Few applications can consistently produce full

screen changes all the time

• Video has durations of low bandwidth

• Graphic screen savers will consume

bandwidth

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