VLAN
Virtual Local Area Network, a.k.a. virtual LAN
In computer networking, VLAN is a concept of partitioning a physical network, so that distinct broadcast domains are created. This is usually achieved on switch or router level. Simpler devices only support partitioning on a port level, so sharing VLANs across devices requires running dedicated cabling for each VLAN. More sophisticated devices can mark packets through tagging, so that a single interconnect (trunk) may be used to transport data for various VLANs.
NetLingo Classification: Net Hardware
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