Alcatel-Lucent 7950 Quality Of Service Manual page 381

When a parent scheduler is defined without specifying weight or strict parameters, the default bandwidth
access method is weight with a value of 1.
The no form of the command removes a child association with a parent scheduler. If a parent association
does not currently exist, the command has no effect and returns without an error. Once a parent association
has been removed, the former child queue attempts to operate based on its configured rate parameter.
Removing the parent association on the queue within the policy takes effect immediately on all queues using
the SAP egress QoS policy.
Parameters scheduler-name — The defined scheduler-name conforms to the same input criteria as the schedulers
defined within a scheduler policy. Scheduler names are configured in the
config>qos>scheduler-policy>tier level context. There are no checks performed at the
time of definition to ensure that the scheduler-name exists within an existing scheduler policy. For the
queue to use the defined scheduler-name, the scheduler exists on each egress SAP the queue is
eventually created on. For the duration where scheduler-name does not exist on the egress SAP, the
queue operates in an orphaned state.
Values
Default
weight weight — weight defines the relative weight of this queue in comparison to other child schedulers
and queues while vying for bandwidth on the parent scheduler-name. Any queues or schedulers defined
as weighted receive no parental bandwidth until all strict queues and schedulers on the parent have
reached their maximum bandwidth or are idle. In this manner, weighted children are considered to be
the lowest priority.
All weight values from all weighted active queues and schedulers with a common parent scheduler are
added together. Then, each individual active weight is divided by the total, deriving the percentage of
remaining bandwidth provided to the queue or scheduler after the strict children are serviced. A weight
is considered to be active when the pertaining queue or scheduler has not reached its maximum rate and
still has packets to transmit. All child queues and schedulers with a weight of 0 are considered to have
the lowest priority level and are not serviced until all strict and non-zero weighted queues and
schedulers are operating at the maximum bandwidth or are idle.
Values
Default
level level — The optional level parameter defines the level of hierarchy when compared to other schedulers
and queues when vying for bandwidth on the parent scheduler-name. Any queues or schedulers defined
as strict receive no parental bandwidth until all strict queues and schedulers with a higher (numerically
larger) priority on the parent have reached their maximum bandwidth or are idle.
Children of the parent scheduler with a lower strict priority or that are weighted will not receive
bandwidth until all children with a higher strict priority have either reached their maximum bandwidth
or are idle. Children with the same strict level are serviced in a round robin fashion.
Values
Default
cir-weight cir-weight — Defines the weight the queue or scheduler will use at the within-cir port priority
level (defined by the cir-level parameter). The weight is specified as an integer value from 0 to 100 with
7950 XRS Quality of Service Guide
Any string up to 32 characters long composed of printable, 7-bit ASCII characters. If the
string contains special characters (#, $, spaces, etc.), the entire string must be enclosed
within double quotes.
None. Each parental association must be explicitly defined.
0 — 100
1
1 — 100
1
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