ZyXEL GS2200-8 User Guide - Page 154

Overview, Configuring the Classifier

Page 154 highlights

CHAPTER 20 Classifier 20.1 Overview This chapter introduces and shows you how to configure the packet classifier on the Switch. It also discusses Quality of Service (QoS) and classifier concepts as employed by the Switch. 20.1.1 What You Can Do Use the Classifier screen (Section 20.2 on page 154) to define the classifiers and view a summary of the classifier configuration. After you define the classifier, you can specify actions (or policy) to act upon the traffic that matches the rules. 20.1.2 What You Need to Know 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-ondemand. A classifier groups traffic into data flows according to specific criteria such as the source address, destination address, source port number, destination port number or incoming port number. For example, you can configure a classifier to select traffic from the same protocol port (such as Telnet) to form a flow. Configure QoS on the Switch to group and prioritize application traffic and fine-tune network performance. Setting up QoS involves two separate steps: 1 Configure classifiers to sort traffic into different flows. 2 Configure policy rules to define actions to be performed on a classified traffic flow (refer to Chapter 21 on page 160 to configure policy rules). 20.2 Configuring 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 matches the rules. To configure policy rules, refer to Chapter 21 on page 160. GS2200-8/24 User's Guide 154

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GS2200-8/24 User’s Guide
154
C
HAPTER
20
Classifier
20.1
Overview
This chapter introduces and shows you how to configure the packet classifier on the Switch. It also
discusses Quality of Service (QoS) and classifier concepts as employed by the Switch.
20.1.1
What You Can Do
Use the
Classifier
screen (
Section 20.2 on page 154
) to define the classifiers and view a summary
of the classifier configuration. After you define the classifier, you can specify actions (or policy) to
act upon the traffic that matches the rules.
20.1.2
What You Need to Know
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 classifier groups traffic into data flows according to specific criteria such as the source address,
destination address, source port number, destination port number or incoming port number. For
example, you can configure a classifier to select traffic from the same protocol port (such as Telnet)
to form a flow.
Configure QoS on the Switch to group and prioritize application traffic and fine-tune network
performance. Setting up QoS involves two separate steps:
1
Configure classifiers to sort traffic into different flows.
2
Configure policy rules to define actions to be performed on a classified traffic flow (refer to
Chapter
21 on page 160
to configure policy rules).
20.2
Configuring 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 matches the rules. To configure policy rules, refer to
Chapter 21 on page 160
.