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Configuring a Class Map
A class map is used for matching packets to a specified class.
Command Usage
• To configure a Class Map, follow these steps:
- Open the Class Map page, and click Add Class.
- When the Class Configuration page opens, fill in the “Class Name” field, and
click Add.
- When the Match Class Settings page opens, specify type of traffic for this class
based on an access list, a DSCP or IP Precedence value, or a VLAN, and click
the Add button next to the field for the selected traffic criteria. You can specify up
to 16 items to match when assigning ingress traffic to a class map.
• The class map is used with a policy map (page 14-4) to create a service policy
(page 14-7) for a specific interface that defines packet classification, service
tagging, and bandwidth policing. Note that one or more class maps can be
assigned to a policy map.
Command Attributes
Class Map
• Modify Name and Description – Configures the name and a brief description of
a class map. (Range: 1-16 characters for the name; 1-64 characters for the
description)
• Edit Rules – Opens the “Match Class Settings” page for the selected class entry.
Modify the criteria used to classify ingress traffic on this page.
• Add Class – Opens the “Class Configuration” page. Enter a class name and
description on this page, and click Add to open the “Match Class Settings” page.
Enter the criteria used to classify ingress traffic on this page.
• Remove Class – Removes the selected class.
Class Configuration
• Class Name – Name of the class map. (Range: 1-16 characters)
• Type – Only one match command is permitted per class map, so the match-any
field refers to the criteria specified by the lone match command.
• Description – A brief description of a class map. (Range: 1-64 characters)
• Add – Adds the specified class.
• Back – Returns to previous page with making any changes.
Match Class Settings
• Class Name – List of class maps.
• ACL List – Name of an access control list. Any type of ACL can be specified,
including standard or extended IP ACLs and MAC ACLs. (Range: 1-16 characters)
• IP DSCP – A DSCP value contained in an IPv4 packet. (Range: 0-63)
14-2
Quality of Service
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