ing, depending on switch size. Geographically configured VLANs are
designed around the fact that the business or corporation is using centralized
resources, such as a server farm. The users will spend most of their time uti-
lizing these centralized resources and 20 percent or less on the local VLAN.
From what you have read in this book so far, you must be thinking that 80
percent of the traffic is crossing a layer 3 device. That doesn't sound efficient,
does it?
design is that it will give the users a deterministic, consistent method of get-
ting to resources. However, you cannot create this design with a lower-end
layer 3 model. This is not for the poor.
There are two types of VLAN port configurations: static and dynamic. A
static VLAN requires less work initially but is more difficult for an admin-
istrator to maintain. A dynamic VLAN, on the other hand, takes more work
up front but is easier to maintain.
the association does not change until the administrator changes the port
assignment. This is the typical way of creating VLANs, and it is the most
secure. This type of VLAN configuration is easy to set up and monitor,
working well in a network where the movement of users within the network
is maintained by basically just locking the network closet doors. Using net-
work management software to configure the ports can be helpful but is not
mandatory.
devices' hardware addresses into a database, hosts in an internetwork can be
assigned VLAN assignments dynamically. Using intelligent management
software, you can enable hardware (MAC) addresses, protocols, or even
applications to create dynamic VLANs.