ZyXEL Communications GS1920v2 Series User Manual page 377

Table 211 SECURITY > ACL > Policy Rule > Add/Edit (continued)
LABEL DESCRIPTION
Rate Limit 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.
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, Queue,
Outgoing) 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.
Outgoing Select Send the packet to the mirror port to send the packet to the mirror port.
Select Send the packet to the egress port to send the packet to the egress port.
Select Set the packet's VLAN ID to set the packet's VLAN ID.
Rate Limit Select Enable to activate bandwidth limitation on the traffic flows then set the actions to be
taken on out-of-profile packets.
Apply Click Apply to save your changes to the Switch's run-time memory. The Switch loses these
changes if it is turned off or loses power, so use the Save link on the top navigation panel to
save your changes to the non-volatile memory when you are done configuring.
Clear Click Clear to clear the fields to the factory defaults.
Cancel Click Cancel to not save the configuration you make and return to the last screen.
Chapter 59 Policy Rule
Section 58.4 on page 371
GS1920v2 Series User's Guide
377
for more information).