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Quality of Service Commands
The commands described in this section are used to configure Differentiated
Services (DiffServ) classification criteria and service policies. You can classify
traffic based on access lists, IP Precedence or DSCP values, or VLANs. Using
access lists allows you select traffic based on Layer 2, Layer 3, or Layer 4
information contained in each packet.
To create a service policy for a specific category of ingress traffic, follow these
steps:
1.
Use the
command to designate a class name for a specific category
of traffic, and enter the Class Map configuration mode.
2.
Use the
command to select a specific type of traffic based on an access
list, an IPv4 DSCP value, IPv4 Precedence value, IPv6 DSCP value, a VLAN, or a
Table 100: Quality of Service Commands
Command
Function
Mode
Creates a class map for a type of traffic
GC
Specifies the description of a class map
CM
Defines the criteria used to classify traffic
CM
Redefines the name of a class map
CM
Creates a policy map for multiple interfaces
GC
Specifies the description of a policy map
PM
Defines a traffic classification for the policy to act on
PM
Redefines the name of a policy map
PM
Defines an enforcer for classified traffic based on the
metered flow rate
PM-C
Services IP traffic by setting a class of service value for
matching packets for internal processing
PM-C
Applies a policy map defined by the
command to a particular interface
IC
Displays the QoS class maps which define matching
criteria used for classifying traffic
PE
Displays the QoS policy maps which define
classification criteria for ingress or egress traffic, and
may include policers for bandwidth limitations
PE
Displays the configuration of all classes configured for
all service policies on the specified interface
PE