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Link scheduler configuration task list
162
SmartWare Software Configuration Guide 
13 • Link scheduler configuration
Mode: Source
Defining the bit-rate
The command 
rate
 is used with shaper link arbitration to assign the (average) bit-rate to the selected source. 
When enough bandwidth is available each source will exactly receive this bandwidth (but no more), when 
overloaded the shaper will behave like a wfq arbiter. Bit-rate specification for shaper (kilobits).
Mode: Source
Defining absolute priority
This command 
priority
 can only be applied to classes, but not to lower level polices. The class is given absolute 
priority effectively bypassing the link arbiter. Care should be taken, as traffic of this class may block all other 
traffic. The packets given “priority” are taken into account by the “rate-limit”. Use the command 
police
 to 
control the amount of “priority” traffic.
Mode: Source
Defining the maximum queue length
The command 
queue-limit
 specifies the maximum number of packets queued for the class name. Excess pack-
ets are dropped. Used in “class” mode—queuing only happens at the leaf of the arbitration hierarchy tree. The 
no
 form of this command reverts the queue-limit to the internal default value, which depends on 
your configuration.
Mode: Source
Specifying the type-of-service (TOS) field
The 
set ip tos
 command specifies the type-of-service (TOS) field value applied to packets of the class name. TOS 
and DSCP markings cannot be used at the same time. The 
no 
form of this command disables TOS marking.
Command
Purpose
node(src)[name]#share percentage
Defines fair queuing weight (relative to other sources) to percent-
age
 for the selected class or policy name
Command
Purpose
node(src)[name]#rate [kilobits | 
remaining]
Defines the (average) bit-rate to the selected in kbps kilobits or as 
remaining if a second priority source is getting the unused band-
width for the selected class or policy name
Command
Purpose
node(src)[name]#priority
Defines absolute priority effectively bypassing the link arbiter for the 
selected class or policy name
Command
Purpose
node(src)[name]#queue-limit 
number-of-packets
Defines the maximum number of packets queued for the selected class 
or policy name