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(Revised 2010-9-27) Page 151 of 159
VLAN Configuration Examples
A VLAN is an administratively configured LAN segment that limits the traffic in multiple broadcast domains. Instead of
physically reconnecting a device to a different LAN, network administrators can accomplish this task by configuring a
VLAN compliant switch to create logical network segments.
Tagged VLAN allows switch segmentation to span across multiple managed switches. This type of VLAN is ideal for
LANs that consist of various types of communication groups such as Office LANs, Controls Systems, and IP
Cameras. When used properly, it will effectively isolate two or more groups from each other in a logical manner. This
means that Broadcast, Multicast, and Unicast frames in one VLAN will not interfere with another isolated VLAN group.
The examples in this section are shown as configured on a 708TX switch, but the 710FX2 series may be configured
similarly with the additional ports.
Example 1 – Basic understanding of port-based VLANs
Receiving
Port #
Tagged VID
in packet
Destination
Address
Transmitting
Port #s
Notes
TX1
Untagged
MAC on port TX2
TX2
Unicast Traffic
TX1
Untagged
Unknown MAC
TX2
Floods VLAN 2
TX1
VID 4
MAC on port TX2
--
Packet Discarded
TX3
Untagged
MAC on port TX5
TX5
Unicast Traffic
TX3
Untagged
Unknown MAC
TX4-TX8
Floods VLAN 1
TX3
VID 4
MAC on port TX6
--
Packet Discarded