Alcatel-Lucent 7750 SR Manual page 704

Virtual Private LAN Services
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.
If the provided scheduler-name is invalid according to the criteria below, a name syntax error will
occur, the command will not execute, and the CLI context will not change.
Parameters
scheduler-name — The name of the scheduler.
create — This optional keyword explicitly specifies that it is acceptable to create a scheduler with the
rate
Syntax rate pir-rate [cir cir-rate]
no rate
Context config>service>vpls>sap>egress>sched-override>scheduler
Description
This command can be used to override specific attributes of the specified scheduler rate. The rate
command defines the maximum bandwidth that the scheduler can offer its child queues or schedulers.
The maximum rate is limited to the amount of bandwidth the scheduler can receive from its parent
scheduler. If the scheduler has no parent, the maximum rate is assumed to be the amount available to
the scheduler. When a parent is associated with the scheduler, the CIR parameter provides the amount
of bandwidth to be considered during the parent scheduler's 'within CIR' distribution phase.
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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).
Values Valid names consist of 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.
Default None. Each scheduler must be explicitly created.
given scheduler-name. If the create keyword is omitted, scheduler-name is not created when the
system environment variable create is set to true. This safeguard is meant to avoid accidental
creation of system objects (such as schedulers) while attempting to edit an object with a mistyped
name or ID. The keyword has no effect when the object already exists.
7750 SR OS Services Guide