Compex Systems SGX3226 - Manual (Page 81)

Chapter 10 Application on Virtual LAN
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Chapter 10 Application on Virtual LAN
In an untagged VLAN application, you can assign a group of ports within a switch as members
of a specific VLAN. Data traffic would be confined within the member ports. In this way,
devices connected with the switch can be partitioned into distinct groups each corresponds to a
different VLAN. The partition (VLAN) can be expanded when two untagged VLANs are
connected together through their member ports. No two VLANs can be overlapped. Each
VLAN is separate from the rest. It provides a simple means to implement a secure and managed
network.
In a tagged VLAN application, you still can assign specific ports within a switch to be a VLAN
group. In addition, the data transferred within the VLAN group is tagged with an ID as specified
with the 802.1Q Tagged VLAN standard. It allows the VLAN information to be carried along as
the data flow from switch to switch. It also allows a port to carry multiple VLANs data stream.
It is more flexible and scalable than the untagged VLAN application. However, all networking
devices have to support the 802.1Q Tagged VLAN standard for VLAN Tagging system to
work.
10.1 Untagged and Tag Configuration using Web-based Interface