This section provides information for VLAN in Monitor.

A VLAN (Virtual Local Area Network) allows a physical network to be partitioned into multiple logical networks. Devices on a logical network belong to one group. A device can belong to more than one group. With VLAN, a device cannot directly talk to or hear from devices that are not in the same groups; the traffic must first go through a router.

In MTU (Multi-Tenant Unit) applications, VLAN is vital in providing isolation and security among the subscribers. When properly configured, VLAN prevents one subscriber from accessing the network resources of another on the same LAN, therefore a user will not see the printers and hard disks of another user on the same network.

VLAN also increases network performance by limiting broadcasts to a smaller and more manageable logical broadcast domain. In traditional switched environments, all broadcast packets go to each and every individual port. With VLAN, all broadcasts are confined to a specific broadcast domain.

Use this screen to view Switch VLAN settings.

Use this screen to view the Switch’s VLAN settings. Click Monitor > VLAN > VLAN > VLAN.

Each field is described in the following table.

Use this screen to view the Switch’s port setting in VLAN. Click Monitor > VLAN > VLAN > Port.

Each field is described in the following table.

Port-based VLANs are VLANs where the packet forwarding decision is based on the destination MAC address and its associated port. Port-based VLANs require allowed outgoing ports to be defined for each port. Therefore, if you wish to allow two subscriber ports to talk to each other, for example, between conference rooms in a hotel, you must define the egress (an egress port is an outgoing port, that is, a port through which a data packet leaves) for both ports. Port-based VLANs are specific only to the Switch on which they were created.

Use this screen to view the Switch’s VLAN port settings. Click Monitor > VLAN > VLAN > VLAN Port.

Each field is described in the following table.

When 802.1x port authentication is enabled on the Switch and its ports, clients that do not have the correct credentials are blocked from using the ports. You can configure your Switch to have one VLAN that acts as a guest VLAN. If you enable the guest VLAN on a port , the user that is not IEEE 802.1x capable or fails to enter the correct user name and password can still access the port, but traffic from the user is forwarded to the guest VLAN. That is, unauthenticated users can have access to limited network resources in the same guest VLAN, such as the Internet. The rights granted to the Guest VLAN depends on how the network administrator configures switches or routers with the guest network feature.

Use this screen to view the Switch’s guest VLAN. Click Monitor > VLAN > Guest VLAN.

Each field is described in the following table.

Voice VLANs are VLANs configured specially for voice traffic. By adding the ports connected with voice devices to voice VLANs, you can have voice traffic transmitted within voice VLANs and perform QoS-related configuration for voice traffic as required, therefore ensuring the transmission priority of voice traffic and voice quality.

Use this screen to view Switch global and port voice VLAN settings for voice traffic. Click Monitor > VLAN > Voice VLAN.

Each field is described in the following table.