Brocade FastIron Ethernet Switch Traffic Management Guide - Manual (Page 26)

On Brocade ICX 7750 devices, scheduler profiles are applied at the port, rather than at the device
(port region), level. See the description of the scheduler-profile command for more information.
User-configurable scheduler profile configuration
Configuring a user-configurable scheduler profile involves, selecting a proper mechanism and
appropriate weights for the traffic classes (TCs) corresponding to that mechanism. It is highly
recommended that you let the system use the default scheduling mechanism unless user knows what
parameters you intend to modify and for what reasons.
There are two ways of creating a user-configurable scheduler profile. The scheduler-profile can be
created either by specifying a mechanism (WRR, Strict, or Mixed) or by specifying weights.
The user-configurable scheduler profile can be created by specifying a mechanism. There are three
available mechanisms:
• Strict Priority (SP)
• Weighted Round Robin (WRR)
• Mixed (combination of SP and WRR)
Following is the command format for creating a profile while specifying a mechanism.
Syntax: qos scheduler-profile user_profile_namemechanism scheduling_mechanism
The user_profile_name variable is the name of the profile you are creating.
The scheduling_mechanism variable is SP, WRR or Mixed.
The user-configurable scheduler profile can be created by specifying weights from qosp0 through
qosp7 as shown in the following command format.
Syntax: qos scheduler-profile user_profile_name qosp0 w0 qosp1 w1 qosp2 w2 qosp3 w3 qosp4
w4 qosp5 w5 qosp6 w6 qosp7 w7
The user_profile_name variable is the name of the profile you are creating.
Profile qosp0 through qosp7 are the default queue names.
The w0 through w7 variables are the assigned weights.
If you create a profile specifying only the weights (qosp0 through qosp7) without specifying the
mechanism, the default mechanism is used. The default mechanism for stacking systems is Mixed ,
and WRR for stand-alone systems.
If you change the profile mechanism, the weights also get changed according to the mechanism. The
weights can be modified according to the following requirements:
• If the mechanism is changed to WRR , the default system weights get assigned
• If the mechanism is changed to Mixed , the default mix weights get assigned
• If the mechanism is changed to Strict , the weights are ignored and remain untouched.
Scheduler-profile modifications take effect dynamically on an active profile. The operational defaults
for all scheduling types for stacking and stand-alone systems are listed in the Default values for
scheduling type for stacking and stand-alone systems (for FCX and ICX 6450 platforms) table.
Displaying the user-configurable scheduler profile configuration
To display the specified user-configurable scheduler profile configuration, use the show scheduler -
profileuser_profile_name command.
The user_profile_name variable is the name of the profile you are creating.
User-configurable scheduler profile configuration
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