Allied Telesis AlliedWare Plus Overview page 24

Port speed
10G
Note that by default ports only use the maximum threshold, because they are in tail-drop
mode. The other settings are random-detect mode settings. Having defaults means that you
can change to random-detect mode without having to configure a queue set (see
RED curves to ports" on page
Random-detect mode—using RED
What RED The fundamental entity in the switch's RED curve structure is a single set of minimum
curves are threshold—maximum threshold—drop probability values. These three values define a
"curve" such as the one shown in the following figure.
Page 24 | AlliedWare Plus™ OS: Overview of QoS
Setting
Minimum threshold
Maximum threshold
Drop probability
Averaging factor
100%
Drop
Minimum threshold defines the length that the queue must reach before the packets
start being dropped.
Maximum threshold defines the length that the queue must reach before the shaper
stops dropping randomly, and just drops all further packets.
Drop probability defines the percentage of packets that are being dropped at the point
when the length of the queue reaches the maximum threshold value. Effectively, the drop
probability defines how quickly the rate of dropping packets must increase as the queue
length grows from the minimum threshold to the maximum threshold.
25).
0%
Minimum
threshold
Value
1 MB
1 MB
50%
9
Maximum
threshold
"Applying
QoS2.eps