VLANliittymä

VLANliittymä, or VLAN interface, refers to a virtual network interface created within a router or switch that is associated with a specific Virtual Local Area Network (VLAN). VLANs are used to segment a physical network into multiple logical broadcast domains. Each VLANliittymä acts as a gateway or an endpoint for traffic belonging to that particular VLAN.

When a network device is configured with an IP address and subnet mask that falls within a specific VLAN, it is effectively connected to the VLANliittymä corresponding to that VLAN on the network infrastructure. This allows devices within the same VLAN to communicate directly with each other as if they were on the same physical network segment, while traffic destined for other VLANs must pass through a router.

The VLANliittymä provides a logical separation, enhancing network security and performance by reducing broadcast traffic and allowing for more granular control over network access. It allows administrators to manage traffic flow and isolate different groups of users or devices, such as different departments in a company or different types of traffic like voice and data. Configuration of a VLANliittymä typically involves assigning a VLAN ID and an IP address to the interface.