40
VLAN ( Virtual LAN )
A port-based VLAN is a group of switch ports designated by the
switch as belonging to the same broadcast domain. If a broadcast
packet is received from a port, it will forward this broadcast packet
only to those ports belonging to the same VLAN. VLAN classification
of every packet is done in the following way: If the packet is tagged
with non-zero VLAN-id field then this is used as the VLAN id.
Otherwise the default VLAN id of the input port is used. You can
assign a single switch port to two or more VLANs. The factory
default VLAN is that all ports belong to the same VLAN group 1.
Creating VLANs increases network flexibility by allowing you to
reassign devices to accommodate network moves, additions, and
changes, eliminating the need to change physical cabling.
The switch support up to 4095 port-based 802.1Q-compatible virtual
LANs (VLANs).
Figure 5-6 The VLAN Page
In the VLAN management window, you will see 2 VLANs in the page.
To select a certain VLAN, you can do the following:
•
Press ">>" button to display the next 2 VLANs
•
Press "<<" button to display the previous 2 VLANs
•
Press ">>|" button to display the last 2 VLANs
•
Press "|<<" button to display the first 2 VLANs