Traffic filtering configuration example
As shown in
Configure traffic filtering to filter the packets with source port being 21, and received on GigabitEthernet
Figure 18 Network diagram
# Create advanced ACL 3000, and configure a rule to match packets whose source port number is 21.
[DeviceA] acl number 3000
[DeviceA-acl-adv-3000] rule 0 permit tcp source-port eq 21
# Create a class named classifier_1, and use ACL 3000 as the match criterion in the class.
[DeviceA] traffic classifier classifier_1
[DeviceA-classifier-classifier_1] if-match acl 3000
# Create a behavior named behavior_1, and configure the traffic filtering action to drop packets.
[DeviceA] traffic behavior behavior_1
[DeviceA-behavior-behavior_1] filter deny
# Create a policy named policy, and associate class classifier_1 with behavior behavior_1 in the policy.
[DeviceA] qos policy policy
[DeviceA-qospolicy-policy] classifier classifier_1 behavior behavior_1
# Apply the policy named policy to the incoming traffic of GigabitEthernet 1/0/1.
[DeviceA] interface gigabitethernet 1/0/1
[DeviceA-GigabitEthernet1/0/1] qos apply policy policy inbound
18, Host is connected to GigabitEthernet 1/0/1 of Device.