any traffic that exceeds the specified rate, or just reduce the DSCP servic e leve l
for traffic exceeding the specified rate.
6. Use the service-policy command to assign a poli cy m ap t o a specific interface.
Notes: 1. You can configure up to 16 rules per C lass Map. You c an also include
multiple classes in a Policy Map.
2.
You should create a Class Map (page 36-2) before creating a Policy Map
(page 36-5). Otherwise, you will not be able to specify a Class Map with the
class
command (page 36-5) after entering Policy-Map Configuration mode.
class-map
This command creates a class map used for matching packets to the sp ecified
class, and enters Class Map co nfigurat ion mo de. Use the no fo rm to de lete a class
map and return to Global configuration mode.
Syntax
[
no
]
class-map
class-map-name [
match-any
]
• match-any - Match any condition within a class map.
• class-map-name - Name of the clas s map. (R ange: 1-16 ch aracte rs)
Default Setting
None
Command Mode
Global Configuration
Command Usage
• First enter this command to designate a class map and enter the Class Map
configuration mode. Then use the
match
command (page 36-3) to specify the
criteria for ingress traffic that will be classified under this class map.
• Up to 16 match commands are permitted per class map.
• One or more class maps can be assigned to a policy map (page 36-5). The
policy map is then bound by a ser vice p olicy to an in terfac e (page 36-8) . A
service policy defines packet classification, service tagging, and bandwidth
policing. Once a policy map h as been bound t o an i nterf ac e, n o ad ditio nal
class maps may be added to the policy map , nor an y chang es made to the
assigned class maps with the
match
or
set
commands.
Example
This example creates a class map call “rd_class,” and sets it to match packets
marked for DSCP service value 3:
Console(config)#class-map rd_class match-any
Console(config-cmap)#match ip dscp 3
Console(config-cmap)#
Related Commands
show class map (36-9)
36-2
Quality of Service Commands
36