(Optional.) Configure the system to assign VLANs based on the MAC address preferentially.īy default, the system assigns VLANs based on the MAC address preferentially when both the MAC-based VLAN and IP subnet-based VLAN are configured on a port. The VLAN assignment for a port is triggered only when the source MAC address of its receiving packet exactly matches the MAC address in a MAC-to-VLAN entry. Interface interface-type interface-numberĮnable dynamic MAC-based VLAN assignment.īy default, dynamic MAC-based VLAN assignment is disabled. Mac-vlan mac-address mac-address vlan vlan-id īy default, no MAC-to-VLAN entries exist. They can have a negative impact on each other. As a result, the port will not be dynamically assigned to the target VLAN.Īs a best practice, do not configure both dynamic MAC-based VLAN assignment and automatic voice VLAN assignment mode on a port. The port drops the received packets instead of delivering them to the CPU.
In PVST mode, if the target VLAN of a port is not permitted on the port, the port is placed in blocked state. As a result, the port will not be dynamically assigned to the target VLAN.Īs a best practice, do not use dynamic MAC-based VLAN assignment with PVST. In MSTP mode, if a port is blocked in the MSTI of its target VLAN, the port drops the received packets instead of delivering them to the CPU. If the two features are configured together on a port and the port learns the configured maximum number of MAC address entries, the port processes packets as follows:įorwards only packets matching the MAC address entries learnt by the port.Īs a best practice, do not use dynamic MAC-based VLAN assignment with MSTP.
If the two features are configured together on a port, the port forwards only packets exactly matching the MAC-to-VLAN entries and drops inexactly matching packets.Īs a best practice, do not configure both dynamic MAC-based VLAN assignment and the MAC learning limit on a port. If you configure both static and dynamic MAC-based VLAN assignments on a port, dynamic MAC-based VLAN assignment takes effect.Īs a best practice to ensure correct operation of 802.1X and MAC authentication, do not use dynamic MAC-based VLAN assignment with 802.1X or MAC authentication.Īs a best practice, do not both configure dynamic MAC-based VLAN assignment and disable MAC address learning on a port.
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