Handling Of Traffic Classes; Setting Prioritization - Hirschmann RS20 User Manual

Network load control

7.4.6 Handling of traffic classes

For the handling of traffic classes, the device provides:
Strict Priority
Description of Strict Priority
With the Strict Priority setting, the device first transmits all data packets
that have a higher traffic class before transmitting a data packet with the
next highest traffic class. The device transmits a data packet with the low-
est traffic class only when there are no other data packets remaining in
the queue. In some cases, a high level of data traffic can prevent packets
with lower traffic classes from being sent.
In applications that are time- or latency-critical, such as VoIP or video, this
method ensures that high-priority data is sent immediately.

7.4.7 Setting prioritization

Assigning the port priority
Select the
QoS/Priority:Port Configuration dialog.
In the "Port Priority" column, you can specify the priority (0-7) with
which the device sends data packets which it receives without a
VLAN tag at this port
Note: If you have set up VLANs, pay attention to the "Transparent
mode" (see on page 128 „Configuring
enable
configure
interface 1/1
Basic Configuration L2P
Release 4.2 07/08
VLANs").
Switch to the Priviledged EXEC mode.
Switch to the Configuration mode.
Switch to the Interface Configuration mode of
interface 1/1.
7.4 QoS/Priority
117