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Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
OL-23826-09
Chapter 24 Configuring QoS
Extending QoS for MLPPP
Step 4
match ip dscp
cs-value
Example:
Router(config-cmap)# match ip dscp
cs5
Identify one or more differentiated service code point (DSCP) CS value
as a match criterion.
• cs-value—The Class Selector(CS) value.
Step 5
class-map match-any
class-map-name
Example:
Router(config-cmap)# class-map
match-any exp4
Creates a class map to be used for matching packets to a specified class.
• class-map-name—Name of the class for the class map.
Step 6
match mpls experimental topmost
number
Example:
Router(config-cmap)# match mpls
experimental topmost 4
Matches the experimental (EXP) value in the topmost label header.
• number—Multiprotocol Label Switching (MPLS) EXP field in the
topmost label header. Valid values are 0 to 7.
Step 7
policy-map
policy-map-name
Example:
Router(config-cmap)# policy-map
dscp_exp
Configures a policy map that can be attached to one or more interfaces and
enters QoS policy-map configuration mode.
• policy-map-name—Name of the policy map.
Step 8
class
class-name
Example:
Router(config-pmap)# class dscpcs5
Specifies the name of the class whose policy you want to create.
• class-name—Name of the class to be configured or whose policy is
to be modified. The class name is used for both the class map and to
configure a policy for the class in the policy map.
Step 9
bandwidth percent
percentage
Example:
Router(config-pmap-c)# bandwidth
percent 20
Configures the bandwidth allocated for a class belonging to a policy map.
• percentage—Specifies the percentage of guaranteed bandwidth based
on an absolute percent of available bandwidth to be set aside for the
priority class or on a relative percent of available bandwidth.
Step 10
set ip dscp
cs-value
Example:
Router(config-pmap-c)# set ip dscp
cs6
Marks a packet by setting the differentiated services code point (DSCP)
value in the type of service (ToS) byte.
Step 11
class
class-name
Example:
Router(config-pmap-c)# class exp4
Specifies the name of the class whose policy you want to create.
Step 12
bandwidth percent
percentage
Example:
Router(config-pmap-c)# bandwidth
percent 20
Configures the bandwidth allocated for a class belonging to a policy map.
• percentage—Specifies the percentage of guaranteed bandwidth based
on an absolute percent of available bandwidth to be set aside for the
priority class or on a relative percent of available bandwidth.
Command Purpose