What is QoS classification

Qos models (best effort , intserv (rsvp) ,diffserv) qos commands.Marking and configuring qos policies are a whole different story so in this lesson, we'll just stick to classification.Classification is the first step in the implementation of qos.This is because, early determination of the type and threat as required through the network.Quality of service (qos) queues and queuing explained we can determine what type of qos action will be taken once the packet has been classified.Traffic types can be data, video, or voice traffic.

The criteria used to classify data can be based on the ip header values such as the ip address ranges, ip precedence, dscp, cos, or, more recently, mpls exp bits.Classifying network traffic is the foundation for enabling many quality of service (qos) features on your network.Qos classification can be associated with a variety of match criteria such as:Qos classification is done close to the source.With fifo, packets are served on a first come first served basis.Each qos class has its own assigned qos characteristics (such as packet delay and packet loss).