ZyXEL Communications Corporation VMG1312T10C 用户手册

Chapter 9 Quality of Service (QoS)

VMG1312-T10C User’s Guide

Service

Select the service classification of the traffic (FTP or SIP).

IP Protocol

Select this option and select the protocol (service type) from TCP or UDP. If you select 
User defined, enter the protocol (service type) number. 

TCP ACK

If you select this option, the matched TCP packets must contain the ACK (Acknowledge) 
flag.

DHCP

Select this option and select a DHCP option. 

If you select Vendor Class ID (DHCP Option 60), enter the Class ID of the matched 
traffic, such as the type of the hardware or firmware.

If you select ClientID (DHCP Option 61), enter the Type of the matched traffic and 
Client ID of the DHCP client.

If you select User Class ID (DHCP Option 77), enter the User Class Data, which is 
a string that identifies the user’s category or application type in the matched DHCP 
packets.

If you select VendorSpecificIntro (DHCP Option 125), enter the Enterprise 
Number of the software of the matched traffic and Vendor Class Data used by all the 
DHCP clients.

Packet Length

This field is available only when you select IPv4 (0x0800) in the Ether Type field.

Select this option and enter the minimum and maximum packet length (from 46 to 
1504) in the fields provided.

IPP/DS Field

Select IPP/TOS to specify an IP precedence range and type of services.

Select DSCP to specify a DiffServ Code Point (DSCP) range.

IP Precedence 

Range

Enter a range from 0 to 7 for IP precedence. 0 is the lowest priority and 7 is the 
highest.

Type of Service

Select a type of service from the drop-down list box.

DSCP Range (0 

~ 63)

Select this option and specify a DSCP (DiffServ Code Point) number between 0 and 63 
in the field provided.

802.1P

Select this option and select a priority level (between 0 and 7) from the drop-down list 
box.

"0" is the lowest priority level and "7" is the highest.

VLAN ID

Select this option and enter the source VLAN ID in this field.

Exclude

Select this option to exclude the packets that match the specified criteria from this 
classifier.

Action

Forward To

Select the interface through which traffic that matches the rule is forwarded out. If you 
select Unchange, the Device forwards traffic of this class according to the default 
routing table.

If traffic of this class comes from a WAN interface and is in a queue that forwards traffic 
through the LAN/WLAN interface, the Device ignores the setting here.

IPP/DS Field

Select IPP/TOS to specify an IP precedence range and type of services.

Select DSCP to specify a DiffServ Code Point (DSCP) range.

IP Precedence 

Mark

Enter a range from 0 to 7 to re-assign IP precedence to matched traffic. 0 is the lowest 
priority and 7 is the highest.

Type Of Service 

Mark

Select a type of service to re-assign the priority level to matched traffic.

Available options are: Normal service, Minimize delay, Maximize throughput, 
Maximize reliability and Minimize monetary cost.

Class Setup: Add/Edit (continued)