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Cisco ME 3800X and ME 3600X Switch Command Reference
OL-28238-01
Chapter 2 Cisco ME 3800X and ME 3600X Switch Cisco IOS Commands
match ip dscp
match ip dscp
To identify a specific IPv4 Differentiated Service Code Point (DSCP) value as match criteria for a class,
use the match ip dscp command inclass-map configuration mode. To remove the match criteria, use the
no form of this command.
match ip dscp dscp-list
no match ip dscp dscp-list
Syntax Description
Defaults No match criteria are defined.
Command Modes Class-map configuration
Command History
Usage Guidelines The match ip dscp command specifies a DSCP value to use as the match criteria to determine if packets
belong to the class specified by the class map.
This command is used by the class map to identify a specific DSCP value marking on a packet. In this
context, DSCP values are used as markings only and have no mathematical significance. For example,
the DSCP value of 2 is not greater than 1, but merely indicates that a packet marked with a value of 2 is
different than one marked with a value of 1. You define the treatment of these marked packets by setting
QoS policies in policy-map class configuration mode.
Before using the match ip dscp command, you must enter the class-map global configuration command
to specify the name of the class whose match criteria you want to establish.
You can enter up to eight DSCP values in one match statement. For example, if you wanted the DCSP
values of 0, 1, 2, 3, 4, 5, 6, or 7, enter the match ip dscp 0 1 2 3 4 5 6 7 command. The packet must
match only one (not all) of the specified IPv4 DSCP values to belong to the class.
You can use match ip dscp classification in input and output policy maps.
You can verify the configuration by entering the show class-map privileged EXEC command.
ip-dscp-list List of up to eight IPv4 DSCP values to match against incoming packets.
Separate each value with a space. The range is 0 to 63. You can also enter a
mnemonic name for a commonly used value and configure DSCP values in
other forms (af numbers, cs numbers, default, or ef).
See the “Configuring QoS” chapter in the software configuration guide for
this release for information about other options for specifying DSCP values.
Release Modification
12.2(52)EY This command was introduced.
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