ZyXEL Communications Corporation EMG6765-Q10A Manuel D’Utilisation

Chapter 21 Bandwidth Management

EMG6765-Q10A User’s Guide

The following section contains additional technical information about the EMG6765-Q10A features 
described in this chapter.

The IEEE 802.1Q standard defines an explicit VLAN tag in the MAC header to identify the VLAN 
membership of a frame across bridges. A VLAN tag includes the 12-bit VLAN ID and 3-bit user priority. 
The VLAN ID associates a frame with a specific VLAN and provides the information that devices need to 
process the frame across the network. 

Others

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. 

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.

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.

Step 3: Packet modification

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 EMG6765-Q10A replaces the DSCP field in 
the packets.

If you select Unchange, the EMG6765-Q10A keep the DSCP field in the packets.

Step 4: Outgoing queue selection

To Queue Index

Select a queue that applies to this class.

You should have configured a queue in the Queue Setup screen already.

Back

Click this to return to the previous screen.

Apply

Click this to save your changes.

Cancel

Click this to exit this screen without saving.

Table 66   Management > Bandwidth MGMT > Class Setup: Add/Edit new class