QoS Classification Overview

I want to flashback to definition of QoS Classification. Classification is important in QoS part. Classification is classify traffic or packet into specific group, categorize a packet into classes and make it accessible for QoS handling on the network. You can partition traffic into multiple priority levels (classes). The classes can perform to traffic policers, such as the traffic policing feature, the rate-limiting feature of commited access rate (CAR) and traffic shapers. And also You can use classification to mark certain packets for IP Precedence or DSCP. In Cisco IOS to look at and check traffic flow inside the router you can enable Network-Based Application Recognition (NBAR).

Several other example of traffic classification

• Policy-Based Routing
• Committed Access Rate for Cisco
• Committed Access Rate for Juniper