Dynamic VLANs are ports on a switch that
can automatically determine their VLAN assignments. Most switch
manufacturers use intelligent management software. Dynamic VLAN functions are based on MAC addresses,
logical addressing, or protocol type of the data packets.
When a station is initially connected
to an unassigned switch port, the appropriate switch checks the MAC
address entry in the VLAN management database and dynamically
configures the port with the corresponding VLAN configuration. The
major benefits of this approach are less administration within the
wiring closet when a user is added or moved, and centralized
notification when an unrecognized user is added to the network.
Typically, more administration is required up front to set up the
database within the VLAN management software and to maintain an
accurate database of all network users.
|