ZyXEL Communications XMG1930-30 User Manual page 484

Table 271 SECURITY > ACL > Policy Rule > Add/Edit (continued)
LABEL DESCRIPTION
General Parameters
Set the fields below for this policy. You only have to set the fields that is related to the actions you configure in the
Action field.
Vlan ID Specify a VLAN ID.
Egress Port Enter the number of an outgoing port.
Priority Specify a priority level.
DSCP Specify a DSCP (DiffServ Code Point) number between 0 and 63.
TOS Specify the Type Of Service (TOS) priority level.
Metering Parameters
You can configure the desired bandwidth available to a traffic flow. Traffic that exceeds the maximum bandwidth
allocated (in cases where the network is congested) is called out-of-profile traffic.
Bandwidth Specify the bandwidth in kilobit per second (Kbps). Enter a number between 1 and 1000000.
Out of Profile Specify a new DSCP number (between 0 and 63) if you want to replace or remark the DSCP
DSCP
number for out-of-profile traffic.
Action
Specify the actions the Switch takes on the associated classified traffic flow.
Note: You can specify only one action (option) for each category (Forwarding, Priority, Diffserv,
Outgoing, Metering) in a policy rule.
Note: The Switch only applies one policy rule for each traffic flow.
Say you have a traffic flow that matches several classifiers, and you specify a different policy rule for each. The
Switch only classifies the traffic flow to the classifier with the highest Match Order. The Switch then applies the policy
rule with which the classifier is associated. You can set the classifier Match Order rule (manual or auto) in the ACL >
Classfier > Classifier Global settings screen (see
Let's say you set two classifiers (Class 1 and Class 2) and both identify all traffic from MAC address 11:22:33:44:55:66
on port 3.
If Policy 1 applies to Class 1 and the action is to drop the packets, Policy 2 applies to Class 2 and the action is to
forward the packets to the egress port, the Switch will forward the packets.
If Policy 1 applies to Class 1 and the action is to drop the packets, Policy 2 applies to Class 2 and the action is to
enable bandwidth limitation, the Switch will discard the packets immediately.
If Policy 1 applies to Class 1 and the action is to forward the packets to the egress port, Policy 2 applies to Class 2
and the action is to enable bandwidth limitation, the Switch will forward the packets.
Forwarding Select No change to forward the packets.
Select Discard the packet to drop the packets.
Priority Select No change to keep the priority setting of the frames.
Select Set the packet's 802.1p priority to replace the packet's 802.1p priority field with the
value you set in the Priority field and put the packets in the designated queue.
Select Replace the 802.1p priority field with the inner 802.1p priority value to replace the
packet's 802.1p priority field with the existing customer priority level carried in the frames and
put the packets in the designated queue.
Chapter 68 Policy Rule
Section 67.4 on page 477
XMG1930 Series User's Guide
484
for more information).