Mastering Proxmox - Third Edition

Virtual LAN

A VLAN is a logical local area network within a physical local area network. It can be compared with partitions within a physical disk storage. A physical network interface can be partitioned to transport data for multiple separate subnets. This partition is achieved using a VLAN ID. For details on VLANs or the IEEE 802.1q standard, refer to http://en.wikipedia.org/wiki/IEEE_802.1Q.

Once VLAN data leaves the virtual environment, a physical network switch with the VLAN feature tags each data with an ID and then directs the data to its proper destination. Each subnet should have the same VLAN ID on the virtual environment and on the physical network switch. VLAN helps reduce the broadcast traffic of multiple domains on the same ...