The policy map limitations do not refer to the number of applied policy map instances, only to the definition
of the policy maps.
Note
About
The MQC Structure
The MQC (Modular Quality of Service (QoS) Command-Line Interface (CLI)) enables you to set packet
classification and marking based on a QoS group value. MQC CLI allows you to create traffic classes and
policies, enable a QoS feature (such as packet classification), and attach these policies to interfaces.
The MQC structure necessitates developing the following entities: traffic class, policy map, and service policy.
Elements of a Traffic Class
A traffic class contains three major elements: a traffic class name, a series of match commands, and, if more
than one match command is used in the traffic class, instructions on how to evaluate these match commands.
The match commands are used for classifying packets. Packets are checked to determine whether they meet
the criteria specified in the matchcommands; if a packet meets the specified criteria, that packet is considered
a member of the class. Packets that fail to meet the matching criteria are classified as members of the default
traffic class.
Available match Commands
The table below lists some of the available match commands that can be used with the MQC. The available
match commands vary by Cisco IOS XE release. For more information about the commands and command
syntax, see the Cisco IOS Quality of Service Solutions Command Reference.
Table 4: match Commands That Can Be Used with the MQC
PurposeCommand
Configures the match criteria for a class map on the
basis of the specified access control list (ACL).
match access-group
Configures the match criteria for a class map to be
successful match criteria for all packets.
match any
Matches a packet based on a Layer 2 class of service
(CoS) marking.
match cos
Uses the destination MAC address as a match
criterion.
match destination-address mac
Matches packets of a certain discard class.match discard-class
Cisco cBR Series Converged Broadband Routers Quality of Services Configuration Guide for Cisco IOS XE Fuji
16.7.x
11
Modular Quality of Service Command-Line Interface QoS
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