Quality of Service Guide 505
QoS Scheduler Policies
In This Section
This section provides information to configure QoS scheduler and port scheduler policies
using the command line interface.
Topics in this section include:
• Overview
• Basic Configurations
• Service Management Tasks
Overview
Scheduler Policies
Virtual schedulers are created within the context of a scheduler policy that is used to define
the hierarchy and parameters for each scheduler. A scheduler is defined in the context of a
tier which is used to place the scheduler within the hierarchy. Three tiers of virtual schedulers
are supported. Root schedulers are defined without a parent scheduler meaning it is not
subject to obtaining bandwidth from a higher tier scheduler. A scheduler has the option of
enforcing a maximum rate of operation for all child queues and schedulers associated with it.
Because a scheduler is designed to arbitrate bandwidth between many inputs, a metric must
be assigned to each child queue or scheduler vying for transmit bandwidth. This metric
indicates whether the child is to be scheduled in a strict or weighted fashion and the level or
weight the child has to other children.
To Next Page
Loading...
