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VLAN, the abbreviation for Virtual Local Area Network, is defined in IEEE 802.1Q. VLAN has the following features:

  • A physical LAN can be divided into multiple VLANs, and a VLAN might include devices from multiple physical networks.
  • A VLAN is virtually a broadcast domain. Layer 2 packets between VLANs are isolated. Communication between VLANs can only be implemented by a Layer 3 route technique (through routers, Layer 3 switches, or other Layer 3 network devices).

VLANs are distinguished by VLAN numbers. The value range is 1 to 4094. System reserves 32 VLAN numbers (224 to 255) for BGroup, but the unused numbers within the range are also available to VLANs.

Configuring a VLAN

To create a VLAN, take the following steps:

  1. Select Network > VLAN.
  2. Click New.
    In the VLAN Configuration page, type a number in the VLAN ID text box, the value range is from 1 to 4094.
  3. Click OK.