Alcatel-Lucent 7950, Quality Of Service Manual, Page: 288 / 612

Service Queue QoS Policy Commands
Page 288 7950 XRS Quality of Service Guide
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 — 100
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 0 — 8 (8 is the highest priority)
Default 0
rate
Syntax rate pir-rate [ cir cir-rate | police ]
no rate
Context config>qos>sap-ingress>queue
Description This command defines the administrative Peak Information Rate (PIR) and the administrative 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 rate at which the system prioritizes the queue over other queues competing for the same
bandwidth. For SAP ingress, the CIR also defines the rate that packets are considered in-profile by the
system. In-profile packets are preferentially queued by the system at egress and at subsequent next hop
nodes where the packet can traverse. To be properly handled as in- or out-of-profile throughout the network,
the packets must be marked accordingly for profiling at each hop.
The CIR can be used by the queue’s parent commands cir-level and cir-weight parameters to define the
amount of bandwidth considered to be committed for the child queue during bandwidth allocation by the
parent scheduler.
The rate command can be executed at anytime, altering the PIR and CIR rates for all queues created through
the association of the SAP ingress or SAP egress QoS policy with 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 ( max , 0).
Default rate max cir 0 — The max default specifies the amount of bandwidth in kilobits per second (thousand bits
per second). The max value is mutually exclusive to the pir-rate value.
Parameters pir-rate — Defines the administrative PIR rate, in kilobits, for the queue. When the rate command is
executed, a valid PIR setting must be explicitly defined. When the rate command has not been
executed, the default PIR of max is assumed.
Fractional values are not allowed and must be given as a positive integer.