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Configuring QoS
Configuring QoS
Switch(config-pmap-c)# exit
Switch(config-pmap)# class out-class2
Switch(config-pmap-c)# bandwidth remaining percent 50
Switch(config-pmap-c)# exit
Switch(config-pmap)# class out-class3
Switch(config-pmap-c)# bandwidth remaining percent 20
Switch(config-pmap-c)# exit
Switch(config-pmap)# exit
Switch(config)# interface GigabitEthernet1/17
Switch(config-if)# service-policy output policy1
Switch(config-if)# exit
Configuring Priority With Police
You can use the priority with police feature and configure an unconditional priority policer to limit the bandwidth used by
the priority queue and allocate bandwidth or shape other queues. Follow these guidelines when configuring priority with
police:
You cannot configure a policer committed burst size for an unconditional priority policer even though the keyword is
visible in the CLI help. Any configured burst size is ignored when you try to attach the output service policy.
The allowed police rate range is 64000 to 1000000000 bps, even though the range that appears in the CLI help is
8000 to 1000000000. You cannot attach an output service policy with an out-of-range rate.
You cannot configure priority with policing for a traffic class when bandwidth remaining percent is configured for
another class in the same output policy map.
You can configure 1-rate, 2-color policers for output policies with priority. You cannot configure 2-rate, 3-color
policers for output policies.
Beginning in privileged EXEC mode, follow these steps to configure priority with police:
Command
1.
configure terminal
2.
class-map class-map-name
3.
policy-map policy-map-name
4.
class class-map-name
5.
priority
Purpose
Enter global configuration mode.
Create classes for three egress queues. Enter match conditions
classification for each class.
Create a policy map by entering the policy map name, and enter
policy-map configuration mode.
Enter the name of the priority class (created by using the
class-map global configuration command), and enter
policy-map class configuration mode for the priority class.
Configure this class as the priority class.
Note:
Only one unique class map on the switch can be associated
with a priority command.
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