Alcatel-Lucent 7450 Quality Of Service Manual page 882

Class Fair Hierarchical Policing (CFHP) Policy Command Reference
Description This command is used to create an arbiter within the context of tier 1 or tier 2. An arbiter is a child
policer bandwidth control object that manages the throughput of a set of child policers. An arbiter
allows child policers or other arbiters to parent to one of eight strict levels. Each arbiter is itself
parented to either another tiered arbiter or to the root arbiter.
The root arbiter starts with its defined maximum rate and distributes the bandwidth to its directly
attached child policers and arbiters beginning with priority 8. As the children at each priority level are
distributed bandwidth according to their needs and limits, the root proceeds to the next lower priority
until either all children's needs are met or it runs out of bandwidth. The bandwidth given to a tiered
arbiter is then divided between that arbiters children (child policers or a tier 2 arbiter) in the same
fashion. A tiered arbiter may also have a rate limit defined that limits the amount of bandwidth it may
receive from its parent.
An arbiter that is currently parented by another arbiter cannot be deleted.
Each time the policer-control-policy is applied to either a SAP, or a subscriber (through association
with a sub-profile that has the policy applied), or a multi-service site an instance of the parent policer
and the arbiters is created.
Any child policer that uses the arbiter's name in its parenting command will be associated with the
arbiter instance. The child policer will also become associated with any arbiter to which its parent
arbiter is parented (grandparent). Having child policers parented to an arbiter does not prevent that
arbiter from being removed from the policer-control-policy. When removed, the child policers
become orphaned.
You can create up to 31 tiered arbiters within the policer-control-policy on either tier 1 or tier 2 (in
addition to the arbiter).
The no form of this command is used to remove an arbiter from tier 1 or tier 2. If the specified arbiter
does not exist, the command returns without an error. If the specified arbiter is currently specified as
the parent for another arbiter, the command will fail. When an arbiter is removed from a policer-
control-policy, all instances of the arbiter will also be removed. Any child policers currently parented
to the arbiter instance will become orphans and will not be bandwidth managed by the policer control
policy instances parent policer.
Default None.
Parameters arbiter-name — Any unique name within the policy. Up to 31 arbiters may be created.
description
Syntax description description-string
no description
Context config>qos>policer-control-policy>tier>arbiter
Description
This command is used to define an informational ASCII string associated with the specified arbiter.
The string value may be defined or changed at anytime once the policy exists. The no version of this
command is used to remove a description string from the tiered arbiter.
884 Quality of Service Guide