G&D VisionXS-IP-F-TypeC-UHR Installation Und Bedienung Seite 161

Selecting a network switch
 Ensure sufficient performance of the network switch:
regarding forwarding bandwidth, switching bandwidth and forwarding performance and
calculate the expected values of your IP KVM installation in advance.
EXAMPLE:
Typical bandwidth requirements for KVM-over-IP:
 3840 × 2160 = 800-900 Mbit/s
(office application with approx. 40% of changes)
 2560 × 1440 = 600-500 Mbit/s
(office application with approx. 40% of changes)
 1920 × 1080 = 300-400 Mbit/s
(office application with approx. 40% of changes)
 Window maximization: 900 Mbit/s at 3840 × 2160
 Still image: 20 Mbit/s at 3840 × 2160
IMPORTANT: Make sure that the uplink from access switch to core/main switch
is sufficiently dimensioned for the number and operating mode of the connected
end devices.
EXAMPLE:
 30 × VisionXS-IP-DP-HR-CPU at 10Gbit uplink
 uplink with 10 Gbit/s is a bottleneck, since 30 × 1Gbit/s would have to be
ensured with the CPUs.
Parameters such as the size of the MAC address table and the packet buffer memory can
have a significant impact on the performance.
Recommended settings of network switches
Make the following settings in the network switches to ensure a smooth operation:
 QoS incl. DiffServ/DSCP support:
work traffic. In overload situations, a strict priority prevents the loss of KVM data.
NOTE: Take into consideration that some network switches automatically
assign the service class
such environments, the
14 · G&D VisionXS-IP-F-TypeC-UHR
IP KVM traffic can be prioritised over other net-
(DSCP name:
Network Control
option must not be selected!
DSCP 48
Check the switch's specifications
) for all data packets. In
CS6