Alcatel-Lucent 7210 SAS M OS Quality Of Service Manual page 199

rate
Syntax rate [cir cir-percent] [pir pir-percent]
no rate
Context config>qos>network-queue>queue
This command defines the administrative Peak Information Rate (PIR) and the administrative
Description
Committed Information Rate (CIR) parameters for the queue. Defining a PIR does not necessarily
guarantee that the queue can transmit at the intended rate. The actual rate sustained by the queue
can be limited by oversubscription factors or available egress bandwidth.
The CIR defines the percentage at which the system prioritizes the queue over other queues
competing for the same bandwidth. For network egress, the CIR also defines the rate that the
queue isconsidered in-profile by the system. The in-profile and out-profile of the queue influences
the scheduler priority queue metric. The in-profile and out-profile of the queue based on CIR and
PIR is never marked in the packets. The packets at egress are considered in-profile and out-profile
based on the SAP ingress policy meter results.
The rate command can be executed at anytime, altering the PIR and CIR rates for all queues The 8
queues which are available at egress port are always associated with the network queue QoS
policy by the queue-id.
The no form of the command returns all queues created with the queue-id by association with the
QoS policy to the default PIR and CIR parameters (100, 0).
cir percent — Defines the percentage of the guaranteed rate allowed for the queue. When the rate
Parameters
command is executed, a valid CIR setting must be explicitly defined. When the rate command has not
7210 SAS M OS Quality of Service Guide
constraint used when deriving the operational PIR for the queue. When the pir command
is not specified, the default applies.
cir — Defines the constraints enforced when adapting the CIR rate defined within the
queue queue-id rate command. The cir parameter requires a qualifier that defines the
constraint used when deriving the operational CIR for the queue. When the cir parameter
is not specified, the default constraint applies.
max — The max (maximum) option is mutually exclusive with the min and closest
options. When max is defined, the operational PIR for the queue will be equal to or less
than the administrative rate specified using the rate command.
min — The min (minimum) option is mutually exclusive with the max and closest
options. When min is defined, the operational PIR for the queue will be equal to or greater
than the administrative rate specified using the rate command.
closest — The closest parameter is mutually exclusive with the min and max parameter.
When closest is defined, the operational PIR for the queue will be the rate closest to the
rate specified using the rate command.
Operational Commands
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