Introduction
Dynamic VLANs were introduced to grant the flexibility and complexity(!) that Static VLANs did not provide. Dynamic VLANs are quite rare because of their requirements and initial administrative overhead. As such, most administrators and network engineers tend to prefer Static VLANs.
Dynamic VLANs
Dynamic VLANs, as opposed to Static VLANs, do not require the administrator to individually configure each port, but instead, a central server called the VMPS (VLAN Member Policy Server). The VMPS is used to handle the on-the-spot port configuration of every switch participating on the VLAN network.
The VMPS server contains a database of all workstation MAC addresses, along with the associated VLAN the MAC address belongs to. This way, we essentially have a VLAN-to-MAC address mapping:
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