Alcatel-Lucent 7950 Quality Of Service Manual page 504

Generic Commands
The no form of this command returns the queue to its default shaping rate and cir rate.
Parameters
pir-percent — Specifies the policer's PIR as a percentage of the immediate parent root policer/arbiter rate or
the FP capacity.
Values
Default
cir cir-percent — The cir keyword is optional and when defined the required cir-percent CIR parameter
expresses the policer's CIR as a percentage of the immediate parent root policer/arbiter rate or the FP
capacity.
Values
Default
rate
Syntax rate pir-rate [cir cir-rate]
no rate
Context config>qos>port-scheduler-policy>group
Description
This command specifies the total bandwidth and the within-cir bandwidth allocated to a weighted scheduler
group.
Parameters pir-rate — Specifies PIR rates.
Values
cir cir-rate — Specifies CIR rates.
Values
level
Syntax level priority-level rate pir-rate [cir cir-rate] group name [weight weight]
level priority-level rate pir-rate [cir cir-rate]
no level priority-level
Context config>qos>port-scheduler-policy
Description This command configures an explicit within-cir bandwidth limit and a total bandwidth limit for each port
scheduler's priority level. To understand how to set the level rate and CIR parameters, a basic understanding
of the port level scheduler bandwidth allocation mechanism is required. The port scheduler takes all
available bandwidth for the port or channel (after the max-rate and any port egress-rate limits have been
accounted for) and offers it to each of the eight priority levels twice.
The first pass is called the within-cir pass and consists of providing the available port bandwidth to each of
the 8 priority levels starting with level 8 and moving down to level 1. Each level takes the offered load and
distributes it to all child members that have a port-parent cir-level equal to the current priority level. (Any
Page 504
Percentage ranging from 0.01 to 100.00.
100.00
Percentage ranging from 0.00 to 100.00.
100.00
kilobits-per-second: 1 — 100000000, max, Kbps
0 — 100000000, max, Kbps
7950 XRS Quality of Service Guide