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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
class-map
class-map
To create a class map to be used for matching packets to a specified criteria and to enter class-map
configuration mode, use the class-map command in global configuration mode. To delete an existing
class map, use the no form of this command.
class-map [match-all | match-any] class-map-name
no class-map [match-all | match-any] class-map-name
Syntax Description
Defaults No class maps are defined.
If neither the match-all or the match-any keyword is specified, the default is match-all.
Command Modes Global configuration
Command History
Usage Guidelines Use this command to specify the name of the class for which you want to create or to modify class-map
match criteria and to enter class-map configuration mode.
The switch supports a maximum of 4000 unique class maps.
You use the class-map command and class-map configuration mode to define packet classification as
part of a globally named service policy applied on a per-port basis. When you configure a class map, you
can use one or more match commands to specify match criteria. Packets arriving at either the input or
output interface (determined by how you configure the service-policy interface configuration command)
are checked against the class-map match criteria to determine if the packet belongs to that class.
A match-all class map means that the packet must match all entries and can have no other match
statements. The match-all keyword is supported only for outer VLAN and inner VLAN, or outer CoS
and inner CoS matches for 802.1Q tunneling (QinQ) packets. The match-all keyword is rejected for all
other mutually exclusive match criteria.
After you are in class-map configuration mode, these configuration commands are available:
• description: describes the class map (up to 200 characters). The show class-map privileged EXEC
command displays the description and the name of the class map.
• exit: exits QoS class-map configuration mode.
match-all (Optional) Performs a logical-AND of all matching statements under this class
map. Packets must meet all of the match criteria.
match-any (Optional) Performs a logical-OR of the matching statements under this class
map. Packets must meet one or more of the match criteria.
class-map-name Name of the class map.
Release Modification
12.2(52)EY This command was introduced.
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