QoS Policy Planning Task Map
The following task map lists the major tasks for planning a QoS policy and links to the
instructions to perform each task.
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1. Design your network topology to support IPQoS.
| Identify the hosts and routers on your network to provide differentiated
services.
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2. Define the classes into which services on your network must
be divided.
| Examine the types of services and SLAs that are offered by your
site, and determine the discrete traffic classes into which these
services fall.
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3. Define filters for the classes.
| Determine the best ways of separating traffic of a particular
class from the network traffic flow.
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4. Define flow-control rates for measuring traffic as packets
leave the IPQoS system.
| Determine acceptable flow rates for each class of traffic.
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5. Define DSCPs or user-priority values to be used in the QoS
policy.
| Plan a scheme to determine the forwarding behavior that is assigned
to a traffic flow when the flow is handled by the router or switch.
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6. If applicable, set up a statistics-monitoring plan for traffic
flows on the network.
| Evaluate the traffic classes to determine which traffic flows
must be monitored for accounting or statistical purposes.
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Note -
This section explains how to plan the QoS policy of an IPQoS-enabled system. To plan the
QoS policy for the Diffserv router, refer to the router documentation and the router manufacturer's
web site.