The Policer Setup Screen - ZyXEL Communications P870HNU-51B User Manual

Table 64 QoS Class Configuration (continued)
LABEL
TCP ACK
DHCP
Exclude
Back
Apply
Cancel

15.6 The Policer Setup Screen

Click QoS > Policer Setup to open the screen as shown next. Use this screen to configure QoS
policers to limit the transmission rate of incoming traffic. This lets you prevent high priority packets
from choking off all other traffic.
Figure 103 Policer Setup
The following table describes the labels in this screen.
Table 65 QoS Policer Setup
LABEL
Add
No.
P-870HNU-51b User's Guide
DESCRIPTION
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.
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.
Select this option to exclude the packets that match the specified criteria from
this classifier.
Click Back to return to the previous screen without saving.
Click Apply to save your changes back to the Device.
Click Cancel to begin configuring this screen afresh.
DESCRIPTION
Click this button to create a new entry.
This is the index number of this entry.
Chapter 15 Quality of Service (QoS)
201