ZyXEL P-660R-T1 v3s User Guide - Page 92
What You Can Do in the QoS Screens, 11.1.2 What You Need to Know About QoS
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Chapter 11 Quality of Service (QoS) 11.1.1 What You Can Do in the QoS Screens • Use the QoS screen (Section 11.2 on page 93) to configure QoS settings on the ZyXEL Device. • Use the QoS Settings Summary screen (Section 11.2.1 on page 95) to check the summary of QoS rules and actions you configured for the ZyXEL Device. 11.1.2 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 11.3 on page 96 for advanced technical information on QoS. 92 P-660R-Tx v3s User's Guide