Alcatel-Lucent 7450 Quality Of Service Manual page 568

QoS Scheduler Policy Command Reference
The save config and show config commands only display information on scheduler tiers that contain
defined schedulers. When all schedulers have been removed from a level, that level ceases to be
included in output from these commands.
Parameters
tier — This parameter is required to indicate the group of schedulers to create or be edited. Tier
scheduler
Syntax scheduler scheduler-name
no scheduler scheduler-name
Context config>qos>scheduler-policy>tier
Description This command creates a new scheduler or edits an existing scheduler within the scheduler policy tier.
A scheduler defines bandwidth controls that limit each child (other schedulers and queues) associated
with the scheduler. Scheduler objects are created within the hierarchical tiers of the policy. It is
assumed that each scheduler created will have queues or other schedulers defined as child associations.
The scheduler can be a child (take bandwidth from a scheduler in a higher tier, except for schedulers
created in tier 1). A total of 32 schedulers can be created within a single scheduler policy with no
restriction on the distribution between the tiers.
Each scheduler must have a unique name within the context of the scheduler policy; however the same
name can be reused in multiple scheduler policies. If scheduler-name already exists within the policy
tier level (regardless of the inclusion of the keyword create), the context changes to that scheduler
name for the purpose of editing the scheduler parameters. Modifications made to an existing scheduler
are executed on all instantiated schedulers created through association with the policy of the edited
scheduler. This can cause queues or schedulers to become orphaned (invalid parent association) and
adversely affect the ability of the system to enforce service level agreements (SLAs).
If the scheduler-name exists within the policy on a different tier (regardless of the inclusion of the
keyword create), an error occurs and the current CLI context will not change.
If the scheduler-name does not exist in this or another tier within the scheduler policy, it is assumed
that an attempt is being made to create a scheduler of that name. The success of the command execution
is dependent on the following:
When the maximum number of schedulers has been exceeded on the policy, a configuration error
occurs and the command will not execute, nor will the CLI context change.
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levels cannot be created or deleted. If a value for level is given that is out-of-range, an error
will occur and the current context of the CLI session will not change.
Values 1 to 3
Default None
1. The maximum number of schedulers has not been configured.
2. The provided scheduler-name is valid.
3. The create keyword is entered with the command if the system is configured to require it
(enabled in the environment create command).
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