PLANET ADN-4000 - Manual (Page 74)

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3.3.6 Quality of Service
Many communication and multimedia applications require large, high speed bandwidths to
transfer data between the local network and the internet. However, for many applications
there is often only one internet connection available with limited capacity. QoS (Quality of
Service) divides this capacity between the different applications and provides underplayed,
continuous data transfer where data packets with higher priority are given preference.
Click “Quality of Service” to show the following interface. Under “Quality of Service”, there
are two network share mode:” Queue Config”, ”QoS Classification”.
Quality of Service (QoS) for networks is an industry-wide set of standards and mechanisms
for ensuring high-quality performance for critical applications. By using QoS mechanisms,
network administrators can use existing resources efficiently and ensure the required level
of service without reactively expanding or over-provisioning their networks.
Traditionally, the concept of quality in networks meant that all network traffic was treated
equally. The result was that all network traffic received the network’s best effort, with no
guarantees for reliability, delay, variation in delay, or other performance characteristics. With
best-effort delivery service, however, a single bandwidth-intensive application can result in
poor or unacceptable performance for all applications. The QoS concept of quality is one in
which the requirements of some applications and users are more critical than others, which
means that some traffic needs preferential treatment.
3.3.6.1 Enable QoS
In this interface, you can do QoS queue management configuration. By default, the system
is enable QoS and set a default DSCP mark to automatically mark incoming traffic without
reference to particular classifier.
Click ”Advance Setup”Æ”Quality of Classification” to show following interface:
Figure: QoS queue management configuration
Choose “Enable QoS” can enable QoS and the system can set default DSCP mark