Техническая Спецификация для ZyXEL VMG1312-B10A VMG1312-B10A-EU01V1F

Chapter 10 Quality of Service (QoS)

VMG1312-B10A User’s Guide

Service

This field is available only when you select IP in the Ether Type field.

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.

IP Protocol

This field is available only when you select IP in the Ether Type field.

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

DHCP

This field is available only when you select IP in the Ether Type field.

Select this option and select a DHCP option. 

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

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

Packet 

Length

This field is available only when you select IP in the Ether Type field.

Select this option and enter the minimum and maximum packet length (from 46 to 1500) in 
the fields provided.

DSCP

This field is available only when you select IP in the Ether Type field.

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

802.1P

This field is available only when you select 802.1Q in the Ether Type field.

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

This field is available only when you select 802.1Q in the Ether Type field.

Select this option and specify a VLAN ID number. 

TCP ACK

This field is available only when you select IP in the Ether Type field.

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

Exclude

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

DSCP Mark

This field is available only when you select IP in the Ether Type field.

If you select Mark, enter a DSCP value with which the Device replaces the DSCP field in the 
packets.

If you select Unchange, the Device keep the DSCP field in the packets.

802.1P Mark

Select a priority level with which the Device replaces the IEEE 802.1p priority field in the 
packets.

If you select Unchange, the Device keep the 802.1p priority field in the packets.

VLAN ID

If you select Remark, enter a VLAN ID number with which the Device replaces the VLAN ID 
of the frames.

If you select Remove, the Device deletes the VLAN ID of the frames before forwarding 
them out.

If you select Add, the Device treat all matched traffic untagged and add a second VLAN ID.

If you select Unchange, the Device keep the VLAN ID in the packets.

Forward to 
Interface

Select a WAN interface through which traffic of this class will be forwarded out. If you select 
Unchange, the Device forward traffic of this class according to the default routing table.

Class Setup: Add/Edit (continued)