Westermo MR Series - Manual (Page 222)

222 6622-3201
Web Interface and Command Line Reference Guide www.westermo.com
Small weighting factor values result in a weighted queue length that moves quickly, and more
closely matches the actual queue length. Larger weighting factor values result in a queue length
that adjusts more slowly. If a weighted queue length moves too quickly (small weighting factor),
it may result in dropped packets if the transmit rate rises quickly, but will also recover quickly
after the transmit rate dies off.
If a weighted queue length moves too slowly (large weighting factor), it will allow a burst of traf-
fic through without dropping packets, but may result in dropped packets for some time after the
actual transmit rate drops off.
The weighting factor used should therefore be selected carefully to suit the type of traffic using
the queue.
Using Text Commands
From the command line, use the qprof command to configure or display the queue profiles. To dis-
play a queue profile enter the following command:
qprof ?
where is the number of the queue profile to be displayed.
To change the value of a parameter use the following command:
qprof
The parameters and values are:
Parameter Values Equivalent Web Parameter
maxkbps number Maximum Kbps
maxth number WRED Maximum Threshold
minkbps number Minimum Kbps
minth number WRED Minimum Threshold
mprob 0-100 WRED Maximum Drop Probability
(%)
qlen number Maximum Packet Q Length
wfact number WRED Q Length Weight Factor
For example, to set the maximum throughput for queue profile 5 to 10kbps enter the command:
qprof 5 maxkbps 10