Switching
[ Switching > QoS/Priority ]
181
RM GUI GRS
Release
8.0
09/2019
5.7 QoS/Priority
[ Switching > QoS/Priority ]
Communication networks transmit a number of applications at the same time that have different
requirements as regards availability, bandwidth and latency periods.
QoS (Quality of Service) is a procedure defined in IEEE 802.1D. It is used to distribute resources
in the network. You therefore have the possibility of providing minimum bandwidth for necessary
applications. The prerequisite is that the end devices and the devices in the network support
prioritized data transmission. Data packets with high priority are given preference when transmitted
by devices in the network. You transfer data packets with lower priority when there are no data
packets with a higher priority to be transmitted.
The device provides the following setting options:
You specify how the device evaluates QoS/prioritization information for inbound data packets.
For outbound packets, you specify which QoS/prioritization information the device writes in the
data packet (for example priority for management packets, port priority).
Note: If you use the functions in this menu, then disable the flow control. The flow control is inactive
if in the
Switching > Global
dialog,
Configuration
frame the
Flow control
checkbox is
unmarked
.
The menu contains the following dialogs:
QoS/Priority Global
QoS/Priority Port Configuration
802.1D/p Mapping
IP DSCP Mapping
Queue Management
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