ZyXEL p-2802h-i1 Guida Utente

 Chapter 17 Quality of Service (QoS)

P-2802H(W)(L)-I Series User’s Guide

Tag Configuration

DSCP Value

Select Same to keep the DSCP fields in the packets. 
Select Auto to map the DSCP value to 802.1 priority level automatically.
Select Mark to set the DSCP field with the value you configure in the field 

provided. 

802.1Q Tag

Select Same to keep the priority setting and VLAN ID of the frames. 
Select Auto to map the 802.1 priority level to the DSCP value automatically.
Select Remove to delete the priority queue tag and VLAN ID of the frames.
Select Mark to replace the 802.1 priority field and VLAN ID with the value you 

set in the fields below. 
Select Add to treat all matched traffic untagged and add a second priority queue 

tag and VLAN.

Ethernet Priority Select a priority level (between 0 and 7) from the drop down list box.

VLAN ID

Specify a VLAN ID number between 2 and 4094. 

Filter Configuration

Use the following fields to configure the criteria for traffic classification.

Source

Address

Select the check box and enter the source IP address in dotted decimal notation 

and the source subnet mask. A blank source IP address means any source IP 

address. Refer to the appendix for more information on IP subnetting. 

Port

Select the check box and enter the port number of the source. 0 means any 

source port number. See 

 for some common services 

and port numbers.

Destination 

Address

Select the check box and enter the destination IP address in dotted decimal 

notation and the destination subnet mask. Refer to the appendix for more 

information on IP subnetting.

Port

Select the check box and enter the port number of the destination. 0 means any 

source port number. See 

 for some common services 

and port numbers. 

Others

Service

This field simplifies classifier configuration by allowing you to select a predefined 

application. When you select a predefined application, you do not configure the 

rest of the filter fields.
SIP (Session Initiation Protocol) is a signaling protocol used in Internet 

telephony, instant messaging and other VoIP (Voice over IP) applications. Select 

the check box and select VoIP(SIP) from the drop-down list box to configure this 

classifier for traffic that uses SIP. 
File Transfer Protocol (FTP) is an Internet file transfer service that operates on 

the Internet and over TCP/IP networks. A system running the FTP server 

accepts commands from a system running an FTP client. The service allows 

users to send commands to the server for uploading and downloading files. 

Select the check box and select FTP from the drop-down list box to configure 

this classifier for FTP traffic. 

Protocol

Select this option and select the protocol (TCP or UDP) or select User defined 

and enter the protocol (service type) number. 0 means any protocol number.

Packet Length

Select this option and enter the minimum and maximum packet length (from 28 

to 1500) in the fields provided.

DSCP

Select this option and specify a DSCP (DiffServ Code Point) number between 0 

and 63 in the field provided.

Table 102   QoS Class Configuration (continued)