Zyxel-communications P-660HN-TxA Instrukcja Użytkownika Pobierz pdf (Strona 172)

Chapter 14 Quality of Service (QoS)

P-660HN-TxA User’s Guide

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these two classes are assigned priority queue based on the internal QoS mapping

table on the ZyXEL Device.

Figure 84 QoS Example

14.1.1 What You Can Do in the QoS Screens

•Use the QoS screen (Section 14.2 on page 173) to configure QoS settings on

the ZyXEL Device.

•Use the QoS Settings Summary screen (Section 14.2.1 on page 175) to check

the summary of QoS rules and actions you configured for the ZyXEL Device.

14.1.2 What You Need to Know About QoS

802.1p

QoS is used to prioritize source-to-destination traffic flows. All packets in the same

flow are given the same priority. 802.1p is a way of managing traffic in a network

by grouping similar types of traffic together and treating each type as a class. You

can use 802.1p to give different priorities to different packet types.

Tagging and Marking

In a QoS class, you can configure whether to add or change the DiffServ Code

Point (DSCP) value, IEEE 802.1p priority level and VLAN ID number in a matched

packet. When the packet passes through a compatible network, the networking

device, such as a backbone switch, can provide specific treatment or service

based on the tag or marker.

Finding Out More

See Section 14.3 on page 176 for advanced technical information on QoS.

50 Mbps

DSL

VoIP: Queue 6

Boss: Queue 5

IP=192.168.1.23

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