Quality of Service Guide Network Queue QoS Policies
Edition: 01 3HE 11014 AAAC TQZZA 241
Parameters pir — defines the constraints enforced when adapting the PIR rate defined within the
queue queue-id rate command. The pir parameter requires a qualifier that defines
the constraint used when deriving the operational PIR for the queue. When the rate
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.
adaptation-rule — specifies the adaptation rule to be used while computing the
operational CIR or PIR value. The max (maximum), min (minimum), and closest
parameters are mutually exclusive.
Values max — causes the network processor to be programmed at an
operational rate that is less than the configured PIR or CIR rate by
up to 1.0%. For a network processor on a Gen-3 adapter card or
platform, the average difference between the operational and the
configured CIR rate is 2.0% (for frame sizes less than 2049 bytes)
or 4.0% (for other frame sizes).
min — causes the network processor to be programmed at an
operational rate that is greater than the configured PIR or CIR rate
by up to 1.0%. For a network processor on a Gen-3 adapter card or
platform, the average difference between the operational and the
configured CIR rate is 2.0% (for frame sizes less than 2049 bytes)
or 4.0% (for other frame sizes).
closest — causes the network processor to be programmed at an
operational rate that is closest to the configured PIR or CIR rate
cbs
Syntax cbs percent
no cbs
Context config>qos>network-queue>queue
Description This command specifies the relative amount of reserved buffers for a specific ingress network
adapter card forwarding class queue or egress network port forwarding class queue. The
value is entered as a percentage. The resultant CBS size can be larger than the MBS. This
will result in a portion of the CBS for the queue to be unused and therefore should be avoided.
The no form of this command returns the CBS size for the queue to the default for the
forwarding class.
Default Table 39 lists the cbs forwarding class defaults.
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