Brocade TurboIron 24X Series Configuration Guide - Manual (Page 1080)

1046 Brocade TurboIron 24X Series Configuration Guide
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Scheduling
By default, when you specify the combined SP and WRR queuing method, the system balances
the traffic among the queues as shown in
Table 173 . If desired, you can change the default
bandwidth values as instructed in the section “Changing the bandwidth allocations of the
hybrid WRR and SP queues” on page 1048.
Selecting the QoS queuing method
By default, devices use the weighted fair queuing method of packet prioritization. To change the
method to strict priority or back to weighted fair queuing, enter the following command at the
Global CONFIG level of the CLI.
TurboIron(config)#qos mechanism strict
To change the method back to weighted round robin, enter the following command.
TurboIron(config)#qos mechanism weighted
Syntax: [no] qos mechanism strict | weighted
To change the queuing mechanism to the combined SP and WRR method, enter the following
command at the Global CONFIG level of the CLI.
TurboIron(config)#qos mechanism mixed-sp-wrr
Syntax: mechanism mixed-sp-wrr
Configuring the QoS queues
Each of the queues has the following configurable parameters:
• The queue name
• The minimum percentage of a port outbound bandwidth guaranteed to the queue
Renaming the queues
The default queue names are qosp7, qosp6, qosp5, qosp4, qosp3, qosp2, qosp1, and qosp0. You
can change one or more of the names if desired.
To rename queue “qosp3” to “92-octane”, enter the following command.
TurboIron(config)#qos name qosp3 92-octane
TABLE 173 Default bandwidth for combined SP and WRR queueing methods
Queue Default bandwidth
qosp7 Strict priority (highest priority)
qosp6 Strict priority
qosp5 25%
qosp4 15%
qosp3 15%
qosp2 15%
qosp1 15%
qosp0 15% (lowest priority)