HP A5120 EI Series Configuration Manual page 118

Approach 1: Static MAC-based VLAN assignment
Static MAC-based VLAN assignment applies to networks containing a small number of VLAN users. In
such a network, you can create a MAC address-to-VLAN map containing multiple MAC address-to-VLAN
entries on a port, enable the MAC-based VLAN feature on the port, and assign the port to MAC-based
VLANs.
With static MAC-based VLAN assignment configured on a port, the switch processes received frames by
using the following guidelines:
When the port receives an untagged frame, the switch looks up the MAC address-to-VLAN map

based on the source MAC address of the frame for a match. If the MAC address of a MAC address-
to-VLAN entry matches the source MAC address of the untagged frame, the switch tags the frame
with the corresponding VLAN ID. If no match is found, the switch assigns a VLAN to the frame by
using the following criteria in turn: IP addresses, protocols, and ports.
When the port receives a tagged frame, the port forwards the frame if the VLAN ID of the frame is

permitted by the port, or otherwise drops the frame.
Approach 2: Dynamic MAC-based VLAN assignment
When you cannot determine the target MAC-based VLANs of a port, you can use dynamic MAC-based
VLAN assignment on the port. To do that, you can create a MAC address-to-VLAN map containing
multiple MAC address-to-VLAN entries, enable the MAC-based VLAN feature and dynamic MAC-based
VLAN assignment on the port. When the port receives a frame that matches a MAC address-to-VLAN
entry configured on the port, the port dynamically joins the corresponding MAC-based VLAN.
The following workflows apply:
 When the port receives an untagged frame, it processes the frame by using the flowchart as shown
in Figure 35.
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