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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