2023年3月24日 · Scalability: VLANs can be used to segment a network into smaller, more manageable groups as the network grows in size and complexity. Some of the key features of VLANs include: VLAN tagging: VLAN tagging is a way to identify and distinguish VLAN traffic from other network traffic. This is typically done by adding a VLAN tag to the Ethernet ...

2025年3月20日 · If two ports belong to the same VLAN, they share broadcast messages. Let us take the preceding example. We create two VLANs: VLAN-10 and VLAN-20 on the switch. We assign port-1 to 4 to VLAN-10 and port-5 to 8 to VLAN-20. After this, ports 1, 2, 3, and 4 will share broadcast in VLAN-10, and ports 5, 6, 7, and 8 will share broadcast in VLAN-20.

VLANs work by applying tags to network frames and handling these tags in networking systems, in effect creating the appearance and functionality of network traffic that, while on a single physical network, behaves as if it were split between separate networks. In this way, VLANs can keep network applications separate despite being connected to ...

2022年5月25日 · [ Related: Networking terms and definitions] The history of VLANs. Virtual local area networks have been around for decades, invented by W. David Sincoskie in the 1980s while at Bellcore. After ...

What is a VLAN (virtual LAN)? A virtual LAN (VLAN) is a logical overlay network that groups together a subset of devices that share a physical LAN, isolating the traffic for each group. A LAN is a group of computers or other devices in the same place -- e.g., the same building or campus -- that share the same physical network.

2024年11月22日 · What is VLAN? VLAN is a custom network which is created from one or more local area networks. It enables a group of devices available in multiple networks to be combined into one logical network. The result becomes a virtual LAN that is administered like a physical LAN. The full form of VLAN is defined as Virtual Local Area Network.

Since VLANs are a Layer 2 technology, the VLAN Tag is inserted within the Layer 2 header. The standard Layer 2 header in modern networks is the Ethernet header, which has three fields: Destination MAC Address, Source MAC Address, and Type.