Installation and User Manual
EtherHaul
1200™
Page 84
EH-INST-02, Issue 4.0
Table
7-1
provides an example of WFQ.
Table
7-1 Weighted Fair Queue Example
Radio Rate
320
Mbps
# Queue
Weight
Expected Rate
Stream rate =
60
SP CoS 7
NA
60
Stream rate =
60
SP CoS 6
NA
60
Stream rate =
60
WFQ CoS 5
8
76.2
Stream rate =
60
WFQ CoS 4
6
57.1
Stream rate =
60
WFQ CoS 3
4
38.1
Stream rate =
60
WFQ CoS 2
2
19.0
Stream rate =
60
WFQ CoS 1
1
9.5
Stream rate =
60
BE CoS 0
0
0
Total =
480
In this example, the introduced load exceeds the radio link rate (480>320 Mbps). The
two highest queues (Strict Priority 6 and 7) take precedence over WFQ queues. The
remaining bandwidth (320-60-60=200 Mbps) is split among the weighted queues (1 - 5).
The lowest queue (Best Effort 0) gets no bandwidth.
The following is an example of WFQ configuration:
# Scheduler mode configuration
set scheduler mode wfq
# egress-qos configuring
set egress-qos eth0 1 color-drop blind weight 1 cir 0
set egress-qos eth0 2 color-drop blind weight 2 cir 0
set egress-qos eth0 3 color-drop blind weight 4 cir 0
set egress-qos eth0 4 color-drop blind weight 6 cir 0
set egress-qos eth0 5 color-drop blind weight 8 cir 0
Figure
7-6 WFQ/Shaper Setup
