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port-parent
Syntax
port-parent [cir-level cir-level] [pir-weight pir-weight]
no port-parent
Context
config>qos>sap-egress>queue
config>qos>sap-ingress>queue
Description
The system creates and associates a port-scheduler with every access port on the system. Every
queue within a SAP is associated with the port scheduler available on the port on which the SAP is
created. This command provides the context to configure the queue parameters 'cir-level' and 'pir-
weight'. The port scheduler uses these parameters to apportion the bandwidth to all the queues
competing for the available bandwidth.
The no form of the command reverts the queue to use the default cir-level and pir-weight values.
Default
Port-parent with default values for cir-level "1"and pir-weight "1".
Parameters
cir-level cir-level — Specifies the priority of the queue with respect to other queues. The priority of the
queue is used only in the CIR loop. Level "8" is the highest priority and level "1" is the lowest priority.
Level "8" is treated specially by the schedulers. The scheduler tries to ensure that the configured CIR
rate is always made available to queues configured at this level, irrespective of whether CIR for other
queues are being met or not. In other words, the system tries to satisfy CIR for all the level-8 queues
before it tries to satisfy the CIR of queues configured at other levels. PIR rate configured for level-8
queues is ignored by the system.
In the PIR loop, the priority of the queues cannot be configured. The system assigns the priority to the
queues based on the configured cir-level. Refer to the QoS scheduler section of the user guide to see the
default assignment of pir-levels to the queue corresponding to the cir-level configured by the user.
Values
Default
pir-weight pir-weight — Specifies the relative weight of the queue with respect to the other queues. The
weight parameter is used only in the PIR loop. If the level parameter of a queue is set to '8', the weight
parameter is not used.
Values
Default
queue
Syntax
queue queue-id create
Context
config>qos>sap-egress
config>qos>sap-ingress
Description
This command is used to configure the queue parameters.
7210 SAS-X and 7210 SAS-R6 OS Quality of Service Guide
1 — 8 (8 is the highest priority)
1
1 — 100
1
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