N-Tron Switch 708M12 User Manual download pdf (Page 94)

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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.

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

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N-Tron Switch 708M12 User Manual Page 94