What does logical segmentation utilize to isolate networks?

Logical segmentation primarily utilizes VLANs (Virtual Local Area Networks) to isolate networks. VLANs allow network administrators to segment a single physical network into multiple logical networks. Each VLAN can operate as a separate broadcast domain, which means devices within the same VLAN can communicate freely with each other, while communication between different VLANs can be controlled through routers or layer 3 switches.

This method of segmentation provides several benefits, including enhanced security and improved network performance. By isolating traffic within a VLAN, sensitive data can be separated from the rest of the network, reducing the risk of unauthorized access and limiting the scope of potential broadcasts. Furthermore, VLANs can improve network efficiency by controlling broadcast traffic.

Utilizing VLANs is a cost-effective and flexible solution as it requires minimal physical changes to the network. It allows for easier management of network resources and can be adjusted as organizational needs change without the need for extensive rewiring or hardware changes.