Multiclass MLPPP Traffic Classes Overview

A traffic class is a system-wide collection of buffers, queues, and bandwidth that you can allocate to provide a defined level of service to packets in the traffic class. With multiclass MLPPP, high-priority and low-priority data packets are fragmented into their respective QoS traffic classes before being transmitted. The QoS traffic classes are each mapped to a separate multilink class.

The major benefits of mapping traffic classes to multilink classes are:

The default traffic class is the best-effort traffic class. You can configure fragmentation and reassembly on all traffic classes. Any packet without a traffic-class-to-multilink-class mapping is transmitted without a multiclass MLPPP header.

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