ZyXEL Communications XGS2220 Series, Руководство пользователя

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Chapter 67 Classifier
XGS2220 Series User’s Guide
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67.4 Classifier Global Setting
Use this screen to configure the match order and enable logging on the Switch. Click SECURITY > ACL >
Classifier > Classifier Global Setting to display the configuration screen as shown.
Figure 339 SECURITY > ACL > Classifier > Classifier Global Setting
The following table describes the labels in this screen.
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 261 SECURITY > ACL > Classifier > Classifier Setup > Add/Edit (continued)
LABEL DESCRIPTION
Table 262 SECURITY > ACL > Classifier > Classifier Global Setting
LABEL DESCRIPTION
Match
Order Use this field to set the match order for the classifier rules.
A traffic flow can only be classified to one classifier. When a traffic flow matches more than one
classifier rule, the Switch classifies the traffic based on the
Match Order .
Select manual to have classifier rules applied according to the weight of each rule you configured in
SECURITY > ACL > Classifier > Classifier Setup . If they have the same weight, the Switch will classify the
traffic to the classifier with a higher name priority (see Classifier Name Priority ).
Alternatively, select auto to have classifier rules applied according to the layer of the item configured
in the rule. Layer-4 items have the highest priority, and layer-2 items has the lowest priority. For
example, you configure a layer-2 item (VLAN ID) in classifier A and configure a layer-3 item (source IP
address) in classifier B. When an incoming packet matches both classifier rules, classifier B has priority
over classifier A. If both classifiers have the same priority, the Switch will apply the classifier with a
higher name priority.
Classifier Name Priority
The longer the classifier name, the higher the classifier priority. If two classifier names are the same
length, the bigger the character, the higher the classifier priority. The lowercase letters (such as a and
b) have higher priority than the capitals (such as A and B) in the classifier name. For example, the
classifier with the name of class 2, class a or class B takes priority over the classifier with the name of
class 1 or class A.
Logging
Active Enable the switch button to allow the Switch to create a log when packets match a classifier rule
during a defined time interval.