TO 6.4.2: VLAN Facts.pdf - TestOut LabSim 6.4.2VLANFacts A...

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10/24/2017 TestOut LabSim 1/1 6.4.2 VLAN Facts A virtual LAN (VLAN) uses switch ports to define a broadcast domain. When you define a VLAN, you assign devices on different switch ports to a separate logical (or virtual) LAN. Although a switch can support multiple VLANs, each switch port can be assigned to only one VLAN at a time. The following graphic shows a single-switch VLAN configuration: In the single-switch VLAN configuration above, the following is true: FastEthernet ports 0/1 and 0/2 are members of VLAN 1. FastEthernet ports 0/3 and 0/4 are members of VLAN 2. Workstations in VLAN 1 will not be able to communicate with workstations in VLAN 2, even though they are connected to the same physical switch. Communications between VLANs requires a router, just as with physical LANs. Defining VLANs creates multiple broadcast domains. The above example has two broadcast domains defined, each of which corresponds to one of the VLANs. On Cisco switches, all ports are members of VLAN 1 by default.
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