Command Line Reference Guide

Quality of Service (QoS) | 819
class-map
c e s
Create/access a class map. Class maps differentiate traffic so that you can apply separate quality of
service policies to each class.
Syntax
class-map {match-all | match-any} class-map-name [layer2]
Parameters
Defaults
Layer 3
Command Modes
CONFIGURATION
Command
History
Usage
Information
Packets arriving at the input interface are checked against the match criteria, configured using this
command, to determine if the packet belongs to that class. This command accesses the CLASS-MAP
mode, where the configuration commands include match ip and match mac options.
Related
Commands
match-all
Determines how packets are evaluated when multiple match criteria exist.
Enter the keyword
match-all to determine that the packets must meet all
the match criteria in order to be considered a member of the class.
match-any
Determines how packets are evaluated when multiple match criteria exist.
Enter the keyword
match-any to determine that the packets must meet at
least one of the match criteria in order to be considered a member of the
class.
class-map-name
Enter a name of the class for the class map in a character format (32
character maximum).
layer2 Enter the keyword layer2 to specify a Layer 2 Class Map.
Default: Layer 3
Version 8.3.5.0 Introduced on S55
Version 8.2.1.0
Class-map names can be 32 characters.
layer2 available on C-Series and S-Series.
Version 7.6.1.0 Introduced on S-Series
Version 7.5.1.0 Introduced on C-Series
Version 7.4.1.0 E-Series Only: Expanded to add support for Layer 2
ip access-list extended Configure an extended IP ACL.
ip access-list standard Configure a standard IP ACL.
match ip access-group Configure the match criteria based on the access control list (ACL)
match ip precedence Identify IP precedence values as match criteria
match ip dscp Configure the match criteria based on the DSCP value
match mac access-group Configure a match criterion for a class map, based on the contents of the
designated MAC ACL.
match mac dot1p Configure a match criterion for a class map, based on a dot1p value.
match mac vlan Configure a match criterion for a class map based on VLAN ID.
service-queue Assign a class map and QoS policy to different queues.
show qos class-map View the current class map information.