VLANryhmittys

VLANryhmittys, or VLAN switch, is a network device that connects multiple virtual local area networks (VLANs) together. A VLAN is a network that is logically segmented from other networks, but is still physically connected to the same switch or router.

The main function of a VLAN switch is to interconnect multiple VLANs, allowing data to flow between them while maintaining the isolation of each VLAN. This is achieved through the use of VLAN tags, which are used to identify the VLAN to which a frame belongs. VLAN switches read these tags and direct the frames to the correct VLAN.

VLAN switches are typically used in large enterprise networks to improve network security, scalability, and management. By isolating different parts of the network into separate VLANs, administrators can control access to certain resources and limit the spread of network congestion.

Modern VLAN switches often support advanced features such as VLAN trunking, which allows multiple VLANs to be carried over a single link, and VLAN translation, which allows frames to be translated from one VLAN to another. Some VLAN switches also support Quality of Service (QoS) settings, which allow administrators to prioritize certain types of traffic over others.

In terms of hardware, VLAN switches come in a range of sizes and configurations, from small, desktop switches to large, chassis-based switches. Smaller VLAN switches are typically used in smaller networks, while larger VLAN switches are used in large-scale enterprise networks.

Overall, VLAN switches play a critical role in modern networking, enabling the creation of secure, scalable, and manageable networks.