Cisco 3845 Software Guide - Page 533

Chapter 27 Configuring QoS Configuring QoS Step 4 Command bandwidth {rate | percent value | remaining percent value} Step 5 Step 6 Step 7 end show policy-map [policy-map-name [class class-map-name]] copy running-config startup-config Purpose Set output bandwidth limits for the policy-map class. • Enter a rate to set bandwidth in kilobits per second. The range is from 1 to 100000000. • Enter percent value to set bandwidth as an absolute percentage of the total bandwidth. The range is 1 to 100 percent. • Enter remaining percent value to set bandwidth as a percentage of the remaining bandwidth. The range is 0 to 100 percent. The total guaranteed bandwidth cannot exceed the total available rate. Return to privileged EXEC mode. Verify your entries. (Optional) Save your entries in the configuration file. After you create the policy map, attach it to an interface or an EFP. See the "Attaching a Service Policy to an Interface or EFP" section on page 27-56. Use the no form of the appropriate command to delete an existing policy map, class map, or bandwidth configuration. Note If you enter the no policy-map configuration command or the no policy-map policy-map-name global configuration command to delete a policy map that is attached to an interface, a warning message appears that lists any interfaces from which the policy map is being detached. The policy map is then detached and deleted. For example: Warning: Detaching Policy test1 from Interface GigabitEthernet0/1 This example shows how to allocate 25 percent of the total available bandwidth to the traffic class defined by the class map: Switch(config)# policy-map gold_policy Switch(config-pmap)# class out_class-1 Switch(config-pmap-c)# bandwidth percent 25 Switch(config-pmap-c)# exit Switch(config-pmap)# exit Switch(config)# interface gigabitethernet0/1 Switch(config-if)# service-policy output gold_policy Switch(config-if)# exit Note When you configure CIR bandwidth for a class as an absolute rate or percentage of the total bandwidth, any excess bandwidth remaining after servicing the CIR of all the classes in the policy map is divided among the classes in the same proportion as the CIR rates. If the CIR rate of a class is configured as 0, that class is not eligible for any excess bandwidth and, as a result, receives no bandwidth. OL-23400-01 Cisco ME 3800X and 3600X Switch Software Configuration Guide 27-45