ZyXEL P-2812HNU-51c User Manual download pdf (Page 307)

100

101

P-2812HNU-51c User’s Guide

307

CHAPTER 19

Quality of Service (QoS)

19.1 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.

Configure QoS on the P-2812HNU-51c to group and prioritize application traffic

and fine-tune network performance. Setting up QoS involves these steps:

1 Configure classifiers to sort traffic into different flows.

2 Assign priority and define actions to be performed for a classified traffic flow.

The P-2812HNU-51c assigns each packet a priority and then queues the packet

accordingly. Packets assigned a high priority are processed more quickly than

those with low priority if there is congestion, allowing time-sensitive applications

to flow more smoothly. Time-sensitive applications include both those that require

a low level of latency (delay) and a low level of jitter (variations in delay) such as

Voice over IP (VoIP) or Internet gaming, and those for which jitter alone is a

problem such as Internet radio or streaming video.

This chapter contains information about configuring QoS and editing classifiers.

19.1.1 What You Can Do in this Chapter

•The General screen lets you lets you enable or disable QoS, set the bandwidth,

and allow the P-2812HNU-51c to automatically assign priority to upstream

traffic according to the IEEE 802.1p priority level, IP precedence or packet

length (Section 19.3 on page 309).

•The Queue Setup screen lets you lets you configure QoS queue assignment

(Section 19.4 on page 311).

•The Class Setup screen lets you add, edit or delete QoS classifiers (Section

19.5 on page 313).

1 2 ... 302 303 304 305 306 307 308 309 310 311 312 ... 521 522

Comments to this Manuals

No comments

ZyXEL P-2812HNU-51c User Manual Page 307

Comments to this Manuals

Related products and manuals for Networking ZyXEL P-2812HNU-51c