INNACOMM W3400V, User Manual

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each queue. The weighted value represents the proportion of the obtained
resources. For example, the weighted value of WRR queue schedule algorithm of
a 100M port is configured as 50, 30, 10 and 10 (corresponding to w3, w2, w1 and
w0), so that the queue with minimum priority obtains a bandwidth of at least
10Mbps, which avoids the disadvantage that a message in queue with low priority
during PQ schedule may not obtain service for a long time. WRR queue still has
another advantage. Although the schedule of these queues are conducted in turn,
each queue is not assigned with a fixed service time slice-if a certain queue is null,
it is immediately changed to the next queue. In this way, the bandwidth resources
can be fully utilized.
3.4.6.3 QoS-QoS Classification
Some applications require specific bandwidth to ensure its data be forwarded in
time. QoS classification can creates traffic class rule to classify the upstream traffic.
Assign queue which defines the precedence and the interface and optionally
overwrite the IP header DSCP byte. After QoS classification, QoS divides capacity
between different applications and provides undelayed, continuous data transfer
where data packet with higher priority is given preference. The follow figure shows
QoS classification.
Click QoS Classification and the following page appears. In this page, you can
configure network traffic classes.