Allied Telesis AlliedWare Plus Operating System Version 5.4.4C (x310-26FT,x310-26FP,x310-50FT,x310-50FP) - Manual (Page 996)

Quality of Service (QoS) Introduction
Software Reference for x310 Series Switches
38.24 AlliedWare Plus TM Operating System - Version 5.4.4C C613-50046-01 REV A
Weighted round robin servicing
The following examples show how to configure round robin servicing.
Example To configure a wrr-queue by applying a weighting value of 6 to queues 0 and1:
Example In this example port 1.0.1 has queues configured as follows:
■ queues 6 and 7 are configured strict priority
■ queues 3 and 4 are configured as WRR with weighting values of 6
■ queue 5 is configured as WRR with weighting values of 12
■ queues 0, 1 and 2 are configured as WRR with weighting values of 4
:I
In this example, the queues are processed as follows:
1. Queue 7 is processed first.
2. If queue 7 is empty, Queue 6 is processed next.
3. If queues 6 and 7 are empty, queue 5 is processed next.
4. If queue 5 is empty, queues 3 and 4 are processed with equal weighting.
Drop Mode
The drop mode sets the limits for packets in the egress queues and determines how
packets will be dropped if the queues become congested. The switch supports the Tail
Drop mode and is pre-configured with the following settings:
Data packets will be dropped per color at the following buffer usage:
Red at 60%, Yellow at 80%, and Green at 100%.
These settings cannot be reconfigured.
awplus# configure terminal
awplus(config)# interface port1.0.1
awplus(config-if)# wrr-queue weight 6 queues 0 1
awplus# configure terminal
awplus(config)# interface port1.0.1
awplus(config-if)# priority-queue 6 7
awplus(config-if)# wrr-queue weight 6 queues 3 4
awplus(config-if)# wrr-queue weight 12 queues 5