A service provider is offering a QoS-based transport service. Three classes have been defined in the core, including an Expedited Forwarding (EF) class for VoIP traffic. Which tool should be used at the ingress for the EF class?
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/qos_plcshp/configuration/xe-16/qos-plcshp-xe-16-book/qos-plcshp-class-plc.html
Class-based policing allows you to control the maximum rate of traffic that is transmitted or received on an interface. Class-based policing is often configured on interfaces at the edge of a network to limit traffic into or out of the network
Class-Based Policing Functionality
The Class-Based Policing feature performs the following functions:
Limits the input or output transmission rate of a class of traffic based on user-defined criteria.
Marks packets by setting the ATM Cell Loss Priority (CLP) bit, Frame Relay Discard Eligibility (DE) bit, IP precedence value, IP differentiated services code point (DSCP) value, MPLS experimental value, and quality of service (QoS) group.
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