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Cisco 10000 Series Router Quality of Service Configuration Guide
OL-7433-09
Chapter 20 Configuring Quality of Service for MPLS Traffic
MPLS CoS Multi-VC Mode
Configuring Multi-VCs Using a Specific CoS Map
To configure multi-VCs using a CoS map that you specify, enter the following commands beginning in
global configuration mode:
Configuring Queueing Functions on Router Output Interfaces
To configure queuing functions on the router’s output interfaces, see
Chapter 3, “Configuring QoS
Policy Actions and Rules.”
Command
Purpose
Step 1
Router(config)#
mpls cos-map
cos-map
number
Creates a class of service (CoS) map that specifies how classes
map to label virtual circuits (LVCs) when they are combined with
a prefix map. Enters cos-map configuration submode.
Step 2
Router(config-tag-cos-map)#
class
class
[
available
|
standard
|
premium
|
control
]
Maps traffic classes to LVCs.
class
is the precedence of identified traffic to classify traffic.
The default values for assigning traffic classes to the CoS map
range from 0 to 3:
Class 0—Available
Class 1—Standard
Class 2—Premium
Class 3—Control
The two least significant bits of the EXP field in the packet header
determine the class of a packet.
Step 3
Router(config-tag-cos-map)#
exit
Exits the cos-map configuration submode.
Step 4
Router(config)#
access-list
access-list-number
permit
destination
Creates an access list to control traffic going to the specified
destination address.
Step 5
Router(config)#
mpls prefix-map
prefix-map
access-list
access-list
cos-map
cos-map
Configures the router to use a specified QoS map when an MPLS
destination prefix matches the specified access list.
