QoS Policies
Quality of Service Guide 73
Figure 12: Scheduler Policy on Customer Site and Scheduler Hierarchy Creation
Queues become associated with schedulers when the parent scheduler name is defined within
the queue definition in the SAP ingress policy. The scheduler is used to provide bandwidth
to the queue relative to the operating constraints imposed by the scheduler hierarchy.
Scheduler Policies Applied to SAPs
A scheduler policy can be applied to create egress schedulers used by SAP queues. The
schedulers comprising the policy are created at the time the scheduler policy is applied to the
SAP. If any orphaned queues exist (queues specifying a scheduler name that does not exist)
on the egress SAP and the policy application creates the required scheduler, the status on the
queue will become non-orphaned.
Queues are associated with the configured schedulers by specifying the parent scheduler
defined within the queue definition from the SAP egress policy. The scheduler is used to
provide bandwidth to the queue relative to the operating constraints imposed by the scheduler
hierarchy.
Weighted
Rate Limiting
Scheduler
Service
Queue
Service
Queue
Service
Queue
Service
Queue
Service
Queue
Service
Queue
Weighted
Rate Limiting
Scheduler
Weighted
Rate Limiting
Scheduler
Weighted
Rate Limiting
Scheduler
Forwarding
Class
Forwarding
Class
Forwarding
Class
Forwarding
Class
Forwarding
Class
Forwarding
Class
Scheduler Policy
Ingress or Egress
SAP
SAP
Hierarchical Schedulers
Created Through Scheduler Policy
Application To Individual SAP
Customer
Site
Each SAP Belongs
To The Same
Customer And Is
Associated With
The Same Port
Packet
Packet
Packet
Packet
Packet
Packet
OSSG270
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