H3C S7500E Series

8-1
8 Traffic Filtering Configuration
When configuring traffic filtering, go to these sections for information you are interested in:
z Traffic Filtering Overview
z Configuring Traffic Filtering
z Traffic Filtering Configuration Example
Traffic Filtering Overview
You can filter in or filter out a class of traffic by associating the class with a traffic filtering action. For
example, you can filter packets sourced from a specific IP address according to network status. By
using ACL rules configured with a time range for traffic classification, you can implement time-based
traffic filtering.
Configuring Traffic Filtering
Follow these steps to configure traffic filtering:
To do… Use the command… Remarks
Enter system view
system-view
—
Create a class and enter class
view
traffic classifier
tcl-name [
operator
{
and
|
or
} ]
—
Configure the match criteria
if-match
match-criteria
—
Exit class view
quit
—
Create a behavior and enter
behavior view
traffic behavior
behavior-name
—
Configure the traffic filtering
action
filter
{
deny
|
permit
}
Required
z deny: Drops packets.
z permit: Permits packets to
pass through.
Exit behavior view
quit
—
Create a policy and enter policy
view
qos policy
policy-name
—
Associate the class with the
traffic behavior in the QoS
policy
classifier
tcl-name
behavior
behavior-name
—