Chapter 10 Quality of Service (QoS)
VMG3925-B10A User’s Guide
148
Others
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.
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 Client ID (DHCP Option 61), enter the Identity Association IDentifier (IAD
Option 61) of the matched traffic, such as the MAC address of the device.
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.
If you select Vendor Specific Info (DHCP Option 125), enter the vendor specific
information of the matched traffic, such as the product class, model name, and serial
number of the device.
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.
Step3: Packet Modification
DSCP Mark This field is available only when you select IP in the Ether Type field.
If you select Remark, enter a DSCP value with which the VMG replaces the DSCP field in
the packets.
If you select Unchange, the VMG keep the DSCP field in the packets.
802.1P Mark Select a priority level with which the VMG replaces the IEEE 802.1p priority field in the
packets.
If you select Unchange, the VMG keep the 802.1p priority field in the packets.
Table 49 Classification Setup: Add/Edit (continued)
LABEL DESCRIPTION
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