H3C Technologies H3C WX5500E Series Access Controllers - Manual (Page 133)

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Figure 37 Flowchart for processing a frame in dynamic MAC-based VLAN assignment
When you configure dynamic MAC-based VLAN assignment, follow these guidelines:
• When a port is assigned to the corresponding VLAN in a MAC address-to-VLAN entry, but has not
been assigned to the VLAN by using the port hybrid vlan command, the port sends packets from
the VLAN with VLAN tags removed.
• If you configure both static and dynamic MAC-based VLAN assignment on the same port, dynamic
MAC-based VLAN assignment applies.
• When a packet matches a MAC address-to-VLAN entry, the device picks a forwarding policy for
the packet according to the 802.1p priority mapped to the MAC address.
Configuration restrictions and guidelines
When you configure MAC-based VLAN, follow these guidelines:
• MAC-based VLANs are available only on hybrid ports.
• Do not configure a super VLAN as the VLAN of a MAC address-to-VLAN entry.
• With dynamic MAC-based VLAN assignment enabled, packets are delivered to the CPU for
processing. The packet processing mode has the highest priority and overrides the configuration of
MAC learning limit and disabling of MAC address learning. When dynamic MAC-based VLAN
assignment is enabled, do not configure the MAC learning limit or disable MAC address learning.
• Do not use dynamic MAC-based VLAN assignment together with 802.X and MAC authentication.
• In dynamic MAC-based VLAN assignment, the port that receives a packet with an unknown source
MAC address can be successfully assigned to the matched VLAN only when the matched VLAN is
a static VLAN.