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Appendix D: FAQs
219
Question Answer
How much bandwidth
does Dominion KX II
require?
Dominion KX II offers next generation KVM-over-IP technology - the
very best video compression available. Raritan has received numerous
technical awards confirming its high video quality transmissions and
the low bandwidth utilization.
Raritan pioneered the KVM-over-IP functionality that allows users to
tailor their video parameters to conserve network bandwidth. For
instance, when connecting to Dominion KX II through a dial-up
modem connection, video transmissions can be scaled to grayscale -
allowing users to be fully productive while ensuring high performance.
With that in mind, the following data refers to Dominion KX II at its
default video settings - again, these settings can be tailored to a specific
environment. They can be increased to provide even higher quality
video (color depth), or decreased to optimize for low-speed
connections.
As a general rule, a conservative estimate for bandwidth utilization (at
Dominion KX II's default settings) is approximately 0.5Mbit/second per
active KVM user (connected to and using a server), with very
occasional spikes up to 2MBit/second. This is a very conservative
estimate because bandwidth utilization will typically be even lower.
Bandwidth required by each video transmission depends on what task
is being performed on the managed server. The more the screen
changes, the more bandwidth is utilized. The table below summarizes
some use cases and the required bandwidth utilization at Dominion KX
II's default settings on a 10Mbit/s network:
Idle Windows Desktop 0 Mbps
Move Cursor Around Desktop 0.18Mbps
Move Static 400x600 Window/Dialog
Box
0.35Mbps
Navigate Start Menu 0.49Mbps
Scroll an Entire Page of Text 1.23Mbps
Run 3D Maze Screensaver 1.55Mbps