Dominion
®
KX II - Frequently Asked Questions
©Copyright Raritan, Inc. 2007 Page 4 of 11 Rev. May 2007
Ethernet and IP Networking
Does the Dominion KX II
offer dual gigabit Ethernet
ports to provide redundant
fail-over, or load balancing?
Yes. Dominion KX II features dual gigabit Ethernet ports to provide
redundant failover capabilities. Should the primary Ethernet port (or
the switch/router to which it is connected) fail, Dominion KX II will
failover to the secondary network port with the same IP address –
ensuring that server operations are not disrupted. Note that automatic
failover must be enabled by the administrator.
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
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