Cisco Systems 3750E Manual Do Utilizador
36-61
Catalyst 3750-E and 3560-E Switch Software Configuration Guide
OL-9775-02
Chapter 36 Configuring QoS
Configuring Standard QoS
Switch(config-pmap-c)# exit
Switch(config-pmap)# class-map cm-2
Switch(config-pmap-c)# match ip dscp 2
Switch(config-pmap-c)# service-policy port-plcmap-1
Switch(config-pmap)# exit
Switch(config-pmap)# class-map cm-3
Switch(config-pmap-c)# match ip dscp 3
Switch(config-pmap-c)# service-policy port-plcmap-2
Switch(config-pmap)# exit
Switch(config-pmap)# class-map cm-4
Switch(config-pmap-c)# trust dscp
Switch(config-pmap)# exit
Switch(config)# interface vlan 10
Switch(config-if)#
Switch(config-if)# service input vlan-plcmap
Switch(config-if)# exit
Switch(config)# exit
Switch#
Classifying, Policing, and Marking Traffic by Using Aggregate Policers
By using an aggregate policer, you can create a policer that is shared by multiple traffic classes within
the same policy map. However, you cannot use the aggregate policer across different policy maps or
ports.
the same policy map. However, you cannot use the aggregate policer across different policy maps or
ports.
You can configure aggregate policers only in nonhierarchical policy maps on physical ports.
Beginning in privileged EXEC mode, follow these steps to create an aggregate policer:
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
mls qos aggregate-policer
aggregate-policer-name rate-bps burst-byte
exceed-action {drop |
policed-dscp-transmit}
aggregate-policer-name rate-bps burst-byte
exceed-action {drop |
policed-dscp-transmit}
Define the policer parameters that can be applied to multiple traffic
classes within the same policy map.
classes within the same policy map.
By default, no aggregate policer is defined. For information on the
number of policers supported, see the
number of policers supported, see the
.
•
For aggregate-policer-name, specify the name of the aggregate
policer.
policer.
•
For rate-bps, specify average traffic rate in bits per second
(b/s). The range is 8000 to 1000000000.
(b/s). The range is 8000 to 1000000000.
•
For burst-byte, specify the normal burst size in bytes. The range
is 8000 to 1000000.
is 8000 to 1000000.
•
Specify the action to take when the rates are exceeded. Use the
exceed-action drop keywords to drop the packet. Use the
exceed-action policed-dscp-transmit keywords to mark down
the DSCP value (by using the policed-DSCP map) and to send
the packet. For more information, see the
exceed-action drop keywords to drop the packet. Use the
exceed-action policed-dscp-transmit keywords to mark down
the DSCP value (by using the policed-DSCP map) and to send
the packet. For more information, see the
Step 3
class-map [match-all | match-any]
class-map-name
class-map-name
Create a class map to classify traffic as necessary. For more
information, see the
information, see the