Port-Based Vlan Overview - Allied Telesis AT-FS750/20 User Manual

Port-based
VLAN Overview
With VLANS, you can reconfigure the LAN segment assignment of an
end node connected to the AT-FS750 switch's management software.
Also, you can change the VLAN memberships without moving the
workstations physically or change group memberships without moving
cables from one port to another.
In addition, a virtual LAN can span more than one switch. This means
that the end nodes of a VLAN do not need to be connected to the
same switch, so they are not restricted to being in the same physical
location.
The management software supports the following types of VLANs:

Port-based VLANs

Tagged VLANs

Private VLANs
These types of VLANs are described in the following sections.
As explained in the "VLAN Overview" on page 174, a VLAN consists of a
group of ports on an Ethernet switch that form an independent traffic
domain. This type of VLAN is independent of the header information
including VLAN tags in a frame. Traffic generated by the end nodes of a
VLAN remains within the VLAN and does not cross over to the end nodes
of other VLANs unless there is an interconnection device, such as a router
or Layer 3 switch.
A port-based VLAN is a group of ports on the switch that form a logical
Ethernet segment. A port-based VLAN can have as many or as few ports
as needed. The VLAN can consist of all ports on an Ethernet switch, or
just a few ports.
There are two components of a port-based VLAN in the Management
software:

VLAN Name

VLAN Index
VLAN Name
To create a port-based VLAN, you must give it a unique name. This name
can reflect the function of the network devices that are VLAN members,
such as Sales, Production, and Engineering.
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