Vidipac VSW7242, User Manual, Page: 126 / 288

4.13 VLAN (Virtual LAN)
The VLAN is short of Virtual LAN (Local Area Network.) The VLAN technology allows you to
divide the physical ports to different logical groups. Each groups is a virtual LAN, the clients
within the VLAN is a broadcast domain. While the clients in different VLANs need to
communicate, the VLAN Overlapping setting or a additional upper router is needed.
There are 2 typical types VLAN technology, Port-Based and Tag Based. The Port-based
VLAN is the simplest approach to LAN implementation. The idea is to assign the ports on a
switch to different VLANs, the settings is only applied to the ports of the switch.
Tag-based VLAN follows IEEE 802.1Q technology to tag VLAN ID to the packets. The
tagged VID is not only apply to the switch, but also can be forwarded to next switch and
whole network depends on how you configuring the switch settings.
4.13.1 VLAN Membership Configuration
The VLAN membership configuration for theswitch can be monitored and modified here. Up to 4096
VLANs are supported. This page allows for adding and deleting VLANs as well as adding and deleting
port members of each VLAN.
Navigating the VLAN Table
Each page shows up to 99 entries from the VLAN table, default being 20, selected through the "entries
per page" input field. When first visited, the web page will show the first 20 entries from the beginning of
the VLAN Table. The first displayed will be the one with the lowest VLAN ID found in the VLAN Table.
The "VLAN" input fields allow the user to select the starting point in the VLAN Table. Clicking the button
will update the displayed table starting from that or the closest next VLAN Table match. The will use the
last entry of the currently displayed VLAN entry as a basis for the next lookup. When the end is reached
the text "No more entries" is shown in the displayed table. Use the button to start over.
Delete
To delete a VLAN entry, check this box. The entry will be deleted during the next Save.
VLAN ID