Workflow To Configure Advanced Qos Mode - Cisco 300 Series Administration Manual

Quality of Service
QoS Advanced Mode
Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version)
Advanced QoS settings consist of three parts:
• Definitions of the rules to match. All frames matching a single group of rules
are considered to be a flow.
• Definition of the actions to be applied to frames in each flow that match the
rules.
• Binding the combinations of rules and action to one or more interfaces.

Workflow to Configure Advanced QoS Mode

To configure Advanced QoS mode, perform the following:
1. Select Advanced mode for the system by using the QoS Properties page
Select the Trust Mode using the Global Settings page. If a packet CoS level and
DSCP tag are mapped to separate queues, the Trust mode determines the
queue to which the packet is assigned:
• If internal DSCP values are different from those used on incoming packets,
map the external values to internal values by using the Out-of-Profile DSCP
Mapping page. This in turn opens the DSCP Remarking page.
2. Create ACLs, as described in Create ACL Workflow.
3. If ACLs were defined, create class maps and associate the ACLs with them by
using the Class Mapping page.
4. Create a policy using the Policy Table page, and associate the policy with one
or more class maps using the Policy Class Map page. You can also specify the
QoS, if needed, by assigning a policer to a class map when you associate the
class map to the policy.
• Single Policer—Create a policy that associates a class map with a single
policer by using the Policy Table page and the Class Mapping page. Within
the policy, define the single policer.
• Aggregate Policer—Create a QoS action for each flow that sends all
matching frames to the same policer (aggregate policer) by using the
Aggregate Policer page. Create a policy that associates a class map with the
aggregate policer by using the Policy Table page.
5. Bind the policy to an interface by using the Policy Binding page.
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