Classifying Packets by Behavior Aggregate

By default, packet classification is performed by IP precedence and MPLS EXP classifiers. The IP precedence classifier handles all incoming IP packets, and the MPLS EXP classifier handles all incoming MPLS packets.

To configure class-of-service (CoS) classifiers, you can include the following statements at the [edit class-of-service] hierarchy level of the configuration:

class-of-service {

    classifiers {

        (dscp | dscp-ipv6 | exp | ieee-802.1 | inet-precedence) classifier-name {

            import (classifier-name | default);

            forwarding-class class-name {

                loss-priority level {

                    code-points [ aliases ] [ 6-bit-patterns ];

                }

            }

        }

    }

    interfaces {

        interface-name {

            unit logical-unit-number {

                classifiers {

                    (dscp | dscp-ipv6 | exp | ieee-802.1 | inet-precedence) (classifier-name 
                        | default);

                }

            }

        }

    }

    routing-instances routing-instance-name {

        classifiers {

            exp (classifier-name | default);

        }

    }

}

This chapter discusses the following topics:

• Classifier Types
• Default Behavior Aggregate Classification
• Defining Classifiers
• Applying a Classifier to a Logical Interface
• Applying DSCP IPv6 Classifiers
• Applying MPLS EXP Classifiers to Routing Instances
• Overriding the Default PLP on M320 and T-series Platforms
• Classifying Frame Relay Traffic