Moxa EDS-G516E-4GSFP [52/116] Managed ethernet switch ui_2 _fw_5 x featured functions

Managed Ethernet Switch (UI_2.0_FW_5.x) Featured Functions

Benefits of VLANs

The main benefit of VLANs is that they provide a network segmentation system that is far more flexible than

traditional networks. Using VLANs also provides you with three other benefits:

• VLANs ease the relocation of devices on networks: With traditional networks, network administrators

spend much of their time dealing with moves and changes. If users move to a different subnetwork, the

• VLANs help control traffic: With traditional networks, congestion can be caused by broadcast traffic that

is directed to all network devices, regardless of whether or not they need it. VLANs increase the efficiency

of your network because each VLAN can be set up to contain only those devices that need to communicate

VLANs and the Rackmount switch

Your Moxa switch provides support for VLANs using IEEE Std 802.1Q-1998. This standard allows traffic from

multiple VLANs to be carried across one physical link. The IEEE Std 802.1Q-1998 standard allows each port on

your Moxa switch to be placed as follows:

• On a single VLAN defined in the Moxa switch

• On several VLANs simultaneously using 802.1Q tagging

• 802.1Q VLAN ID—1 (if tagging is required)

software of the Moxa switch over the network.

If devices connected to a VLAN need to communicate with devices on a different VLAN, a router or Layer 3

switching device with connections to both VLANs needs to be installed. Communication between VLANs can

only take place if they are all connected to a routing or Layer 3 switching device.

The Moxa switch supports 802.1Q VLAN tagging, a system that allows traffic for multiple VLANs to be carried

on a single physical link (backbone, trunk). When setting up VLANs you need to understand when to use

compliant packet carries additional information that allows a switch to determine which VLAN the port belongs

to. If a frame is carrying the additional information, it is known as a tagged frame.

To carry multiple VLANs across a single physical link (backbone, trunk), each packet must be tagged with a

VLAN identifier so that the switches can identify which packets belong in which VLAN. To communicate between

VLANs, a router must be used.