Vigitron MaxiiNet Vi30126 Series, Operation Manual

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Section 14: QoS Settings
14.0 Priority Mode
This setting allows the administrator to set the scheduling mode for the
TX packets at each port.
14.1 Setting the
Priority Mode
This setting sets the scheduling mode for Transmission packets for each
port.
Field Description
First-In-First-Out
(FIFO) All output packet are queued to one
queue, first comes first out.
All-High-before-Low
(Strict priority)
All packets will be assigned to either
high priority queue or low priority
queue. The low priority packet will not
forwarded until the high priority queue
is empty.
Weight-Round-Robin
(WRR)
There are 2 priority queues for
Weighted-and-round-robin (WRR)
mode. When this mode is selected,
the traffic will be forwarded according
to the number set in each queue. The
queue ID has nothing to do with the
priority.

Selection of the Low and High weight set up ratios of Low/High.

Selecting “0” will result in a 8 number setting.
The numbers indicate the how packets are treated in sequence at each
port so if the ratio is 3 Low/ 5 High the sequence will be 5 packets will be
stored in high followed by 3 packets stored in low, etc.