GS-4012F/4024 User’s Guide

CHAPTER 18

Classifier

This chapter introduces and shows you how to configure the packet classifier on the switch.

18.1 Overview

Quality of Service (QoS) refers to both a network’s ability to deliver data with minimum delay, and the networking methods used to control the use of bandwidth. Without QoS, all traffic data is equally likely to be dropped when the network is congested. This can cause a reduction in network performance and make the network inadequate for time-critical application such as video-on-demand.

A layer-2 classifier groups traffic according to the Ethernet type, VLAN group, MAC address and/or port number. A layer-3 classifier groups traffic according to the IP address and/or TCP/ UDP protocol number.

Configure QoS on the switch to group and prioritize application traffic and fine-tune network performance. Setting up QoS involves two separate steps:

1Configure classifiers to sort traffic into different flows.

2Configure policy rules to define actions to be performed for a classified traffic flow (refer to Chapter 19 on page 128 to configure policy rules).

18.2Configuring the Classifier

Use the Classifier screen to define the classifiers. After you define the classifier, you can specify actions (or policy) to act upon the traffic that match the rules. To configure policy rules, refer to Chapter 19 on page 128.

Click Advanced Application and Classifier in the navigation panel to display the configuration screen as shown.

Chapter 18 Classifier

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