ZyXEL Communications XS3800-28, Руководство пользователя, Страница: 580 / 789

Chapter 77 Policy Rule
XS3800-28 User’s Guide
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77.3 Policy Example
The figure below shows an example SECURITY > ACL > Policy Rule screen where you configure a policy
to limit bandwidth and discard out-of-profile traffic on a traffic flow classified using the Example classifier
(refer to Section 76.5 on page 574 ).
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 IP TOS value to replace the packet’s 802.1p
priority field with the value you set in the TOS 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.
Diffserv Select No change to keep the TOS and/or DSCP fields in the packets.
Select Set the packet’s TOS field to set the TOS field with the value you configure in the TOS
field.
Select Replace the IP TOS field with the 802.1p priority value to replace the TOS field with the
value you configure in the Priority field.
Select Set the Diffserv Codepoint field in the frame to set the DSCP field with the value you
configure in the DSCP field.
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.
Metering Enable the switch button to activate bandwidth limitation on the traffic flows then set the
actions to be taken on out-of-profile packets.
Out of profile
action
Select the actions to be performed for out-of-profile traffic.
Select Drop the packet to discard the out-of-profile traffic.
Select Change the DSCP value to replace the DSCP field with the value specified in the Out of
profile DSCP field.
Select Set Out-Drop Precedence to mark out-of-profile traffic and drop it when network is
congested.
Select Do not drop the matching frame previously marked for dropping to queue the frames
that are marked to be dropped.
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.
Table 310 SECURITY > ACL > Policy Rule > Add/Edit (continued)
LABEL DESCRIPTION