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Chapter 5: Using the Web-based Utility for Configuration
QoS Tab - Diffserv Settings
24-Port 10/100/1000 Gigabit Switch with Webview and PoE
Class Map
A class map is used for matching packets to a specified class. The class map uses the Access Control List
filtering engine, so you must also set an ACL to enable filtering for the criteria specified in the class map.
The class map is used with a policy map to create a service policy 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.
Class Name. Name of the class map. (Range: 1-32 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: 1-256 characters)
Add. Creates a new class map using the entered class name and description.
Edit Class Element. Modifies the class map criteria used to classify ingress traffic.
Remove. Removes the selected class from the list.
Select the entry from the table that you wish to change, then click Edit Class Element. Add rules to a selected
class using the ACL list drop-down menu or the IP DSCP, IP Precedence and VLAN text fields provided, then click
Add.
Class Rule. Edits the rules for the class by specifying the type of traffic based on an access list, a DSCP or IP
Precedence value, or a VLAN.
• ACL. 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. (Range: 0-63)
• IP Precedence. An IP Precedence value. (Range: 0-7)
• VLAN. A VLAN value. (Range: 1-4094)
Add. Adds the specified criteria to the class. Only one entry is permitted per class.
Remove. Deletes the selected criteria from the class.
Figure 5-39: QoS - Diffserv Settings - Edit Class Element
