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Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
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Chapter 33 Configuring QoS
Configuration Examples for Policy Maps
These sections are included:
• QoS Configuration for Customer A, page 33-65
• QoS Configuration for Customer B, page 33-67
• Modifying Output Policies and Adding or Deleting Classification Criteria, page 33-68
• Modifying Output Policies and Changing Queuing or Scheduling Parameters, page 33-68
• Modifying Output Policies and Adding or Deleting Configured Actions, page 33-69
• Modifying Output Policies and Adding or Deleting a Class, page 33-70
QoS Configuration for Customer A
This section provides examples of the initial configuration and activation of QoS policies for a customer
switch. Input and output QoS service policies are configured based on the requirements and attached to
relevant ports.
In the initial configuration for Customer A, Fast Ethernet ports 1 through 24 are user network interfaces
(UNIs) and are disabled by default. Gigabit Ethernet ports 1 and 2 are network node interfaces (NNIs)
and are enabled by default.
This is the overall sequence for initial configuration:
• Configure classes and policies.
• Shut down all active ports.
• Attach policies to ports to be activated.
• Take the ports out of the shut-down state.
• Leave unused ports shut down.
Note these restrictions for configuring output policies:
• You can define up to three classes in the output policy map.
• The defined classes must be the same as other output policy maps.
• The number of defined classes in each output policy map must be same.
• You must assign an action to each class; that is, there can be no empty class.
• Each class configuration must be based on the classification/marking done in the input policy-map.
This example configures classes for input service policies and defines three classes of service: gold,
silver, and bronze. Because a match-all classification (the default) can have only single classification
criterion, the match-any classification is used so that you can add classification criteria in the future.
Switch# config terminal
Switch(config)# class-map match-any gold-in
Switch(config-cmap)# match ip dscp af11
Switch(config-cmap)# exit
Switch(config)# class-map match-any silver-in
Switch(config-cmap)# match ip dscp af21
Switch(config-cmap)# exit
Switch(config)# class-map match-any bronze-in
Switch(config-cmap)# match ip dscp af31
Switch(config-cmap)# exit
