Licensing Requirements and Limitations for Packet Filtering
Involved Network Elements
Other network elements are not required.
Licensing Requirements
Packet filtering is a basic feature of a switch and is not under license control.
Version Requirements
Table 6-1 describes the products and versions supporting packet filtering.
Feature Limitations
When permit and other actions are configured in a traffic behavior, these actions are performed in sequence. The deny action conflicts with other actions in a traffic behavior. When deny is configured, other configured actions, except traffic statistics collection and flow mirroring, do not take effect.
If you specify a packet filtering action for packets matching an ACL rule, the system first checks the action defined in the ACL rule. If the ACL rule defines permit, the action taken for the packets depends on whether deny or permit is specified in the traffic behavior. If the ACL rule defines deny, the packets are discarded regardless of whether deny or permit is configured in the traffic behavior. If a non-packet-filtering action is specified for packets matching an ACL rule that defines deny, the packets are discarded, and the action specified in the traffic classifier, except disabling MAC address learning, traffic statistics collection and flow mirroring, does not take effect.
