Alcatel-Lucent 7450 Quality Of Service Manual page 452

QoS Queue Group Template Command Reference
cir-weight cir-weight — Defines the weight the queue or scheduler will use at the within-cir port
cir-level cir-level — Defines the port priority the queue or scheduler will use to receive
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.
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Children of the parent scheduler with a lower strict priority or that are weighted will not
receive bandwidth until all children with a higher strict priority have either reached their
maximum bandwidth or are idle. Children with the same strict level are serviced in a round
robin fashion.
Values 1 to 100
Default 1
priority level (defined by the cir-level parameter). The weight is specified as an integer value
from 0 to 100 with 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
0 to 100
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 0 to 8 (8 is the highest priority)
Default 0
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