Alcatel-Lucent 7950 Quality Of Service Manual page 382

Queue Group Commands
100 being the highest weight. When the cir-weight parameter is set to a value of 0 (the default value),
the queue or scheduler does not receive bandwidth during the port schedulers within-cir pass and the
cir-level parameter is ignored. If the cir-weight parameter is 1 or greater, the cir-level parameter comes
into play.
Values
cir-level cir-level — Defines the port priority the queue or scheduler will use to receive bandwidth for its
within-cir offered-load. If the cir-weight parameter is set to a value of 0 (the default value), the queue or
scheduler does not receive bandwidth during the port schedulers within-cir pass and the cir-level
parameter is ignored. If the cir-weight parameter is 1 or greater, the cir-level parameter comes into play.
Values
Default
percent-rate
Syntax percent-rate pir-percent [cir cir-percent]
no percent-rate
Context config>qos>queue-group-templates>egress>queue-group-template>queue
Description
The percent-rate command within the egress queue group template enables support for a queue's PIR and
CIR rate to be configured as a percentage of the egress port's line rate. When the rates are expressed as a
percentage within the template, the actual rate used per instance of the queue group queue-id will vary based
on the port speed. For example, when the same template is used to create a queue group on a 1-Gigabit and a
10-Gigabit Ethernet port, the queue's rates will be 10 times greater on the 10 Gigabit port due to the
difference in port speeds. This enables the same template to be used on multiple ports without needing to use
port based queue overrides to modify a queue's rate to get the same relative performance from the queue.
If the port's speed changes after the queue is created, the queue's shaping and CIR rates will be recalculated
based on the defined percentage value.
The rate and percent-rate commands override one another. If the current rate for a queue is defined using the
percent-rate command and the rate command is executed, the percent-rate values are deleted. In a similar
fashion, the percent-rate command causes any rate command values to be deleted. A queue's rate may
dynamically be changed back and forth from a percentage to an explicit rate at anytime.
The no form of this command returns the queue to its default shaping rate and cir rate.
Parameters pir-percent — This parameter is used to express the queue's shaping rate as a percentage of line rate. The
line rate associated with the queue's port may dynamically change due to configuration or auto-
negotiation and the egress-rate setting.
Values
cir-percent — The cir keyword is optional and when defined the required pir-percent parameter expresses
the queue's committed scheduling rate as a percentage of line rate. The line rate associated with the
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0 — 100
0 — 8 (8 is the highest priority)
0
Percentage ranging from 0.01 to 100.00. The default is 100.00.
7950 XRS Quality of Service Guide