Setup guide

Dominion KX II Frequently asked questions Page 4/10
Questions Answers
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/seconds per
active KVM user (connected to and using a server), with very occasional
spikes up to 2MBit/seconds. 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
What is the slowest connection (lowest
bandwidth) over which Dominion KX II
can operate?
33Kbps or above is recommended for acceptable KX performance over
a modem connection.
What is the speed of
Dominion KX II’s Ethernet interfaces?
Dominion KX II supports Gigabit as well as 10/100 Ethernet. KX II
supports two 10/100/1000 speed Ethernet interfaces, with configurable
speed and duplex settings (either auto-detected or manually set).
Can I access Dominion KX II over
a wireless connection?
Yes. Dominion KX II not only uses standard Ethernet, but also very
conservative bandwidth with very high quality video. Thus, if a wireless
client has network connectivity to a Dominion KX II, servers can be
configured and managed at BIOS-level wirelessly.
Can Dominion KX II be used over
the WAN (Internet), or just over the
corporate LAN?
Whether via a fast corporate LAN, the less predictable WAN (Internet),
cable modem or dial-up modem, Dominion KX II’s KVM-over-IP
technology can accommodate the connection
Can I use Dominion KX II with a VPN? Yes. Dominion KX II uses standard Internet Protocol (IP) technologies
from Layer 1 through Layer 4. Traffic can be easily tunneled through
standard VPNs.
How many TCP ports must be open on
my firewall in order to enable network
access to Dominion KX II? Are these
ports configurable?
Only one. Dominion KX II protects network security by only requiring
access to a single TCP port to operate. This port is completely
configurable for additional security.
Note that, of course, to use Dominion KX II’s optional Web browser
capability, the standard HTTPS port 443 must also be open.