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Configuration example
Network requirements
As shown in Figure 17, configure traffic filtering on GigabitEthernet 1/0/1 to deny the incoming
packets with port 21 as the source port.
Figure 17 Network diagram
Configuration procedure
# Create advanced ACL 3000, and configure a rule to match packets whose source port number is
21.
<Switch> system-view
[Switch] acl number 3000
[Switch-acl-adv-3000] rule 0 permit tcp source-port eq 21
[Switch-acl-adv-3000] quit
# Create a traffic class named classifier_1, and use ACL 3000 as the match criterion in the traffic
class.
[Switch] traffic classifier classifier_1
[Switch-classifier-classifier_1] if-match acl 3000
[Switch-classifier-classifier_1] quit
# Create a traffic behavior named behavior_1, and configure the traffic filtering action to drop
packets.
[Switch] traffic behavior behavior_1
[Switch-behavior-behavior_1] filter deny
[Switch-behavior-behavior_1] quit
# Create a QoS policy named policy, and associate traffic class classifier_1 with traffic behavior
behavior_1 in the QoS policy.
[Switch] qos policy policy
[Switch-qospolicy-policy] classifier classifier_1 behavior behavior_1
[Switch-qospolicy-policy] quit
# Apply QoS policy policy to the incoming traffic of GigabitEthernet 1/0/1.
[Switch] interface gigabitethernet 1/0/1
[Switch-GigabitEthernet1/0/1] qos apply policy policy inbound
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