VLAN Definitions
▪ A VLAN is a logical partition of a Layer 2 network.
▪ Multiple partitions can be created, allowing for multiple VLANs to co-exist.
▪ Each VLAN is a broadcast domain, usually with its own IP network.
▪ VLANs are mutually isolated and packets can only pass between them via a router.
▪ The partitioning of the Layer 2 network takes place inside a Layer 2 device, usually via a switch.
▪ The hosts grouped within a VLAN are unaware of the VLAN’s existence.