Allied Telesis AlliedWare Plus Operating System Version 5.4.4C (x310-26FT,x310-26FP,x310-50FT,x310-50FP) - Manual (Page 995)

Quality of Service (QoS) Introduction
Software Reference for x310 Series Switches
C613-50046-01 REV A AlliedWare Plus TM Operating System - Version 5.4.4C 38.23
Egress Queue Shaping
This section is concerned with how the egress queues are cleared.
Scheduling
The scheduler determines how packets in the egress port queues are serviced. Two
servicing methods can be applied:
■ strict priority
■ weighted round robin (WRR)
Strict priority servicing
By default, all queues on all ports are serviced in a strict priority order. This means that the
highest numbered priority queue (queue 7) is emptied first; then when it is completely
empty, the next highest priority queue is processed, and so on. Thus, for a strict priority
queue to be processed, all higher priority queues must be empty.
Strict priority servicing is the default setting; however if your system is configured for
weighted round robin (WRR), you can return it to priority queueing by using the
commands shown in the following example.
To return queue 2 of port1.0.1 from WRR servicing to strict priority queueing, use the
commands:
awplus# configure terminal
awplus(config)# interface port1.0.1
awplus(config-if)# priority-queue 2