Netgear GS752TS GS7xxTS-TPS Software Admin Manual - Page 306
B. Configuration Examples, Virtual Local Area Networks (VLANs)
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B. Configuration Examples B This chapter contains information about how to configure the following features: • Virtual Local Area Networks (VLANs) on page 306 • Access Control Lists (ACLs) on page 308 • Differentiated Services (DiffServ) on page 311 • 802.1X on page 315 • MSTP on page 318 • Configuring VLAN Routing on page 322 Virtual Local Area Networks (VLANs) A local area network (LAN) can generally be defined as a broadcast domain. Hubs, bridges, or switches in the same physical segment or segments connect all end node devices. End nodes can communicate with each other without the need for a router. Routers connect LANs together, routing the traffic to the appropriate port. A virtual LAN (VLAN) is a local area network with a definition that maps workstations on some basis other than geographic location (for example, by department, type of user, or primary application). To enable traffic to flow between VLANs, traffic must go through a router, just as if the VLANs were on two separate LANs. A VLAN is a group of PCs, servers, and other network resources that behave as if they were connected to a single network segment, even though they might not be. For example, all marketing personnel might be spread throughout a building. Yet if they are all assigned to a single VLAN, they can share resources and bandwidth as if they were connected to the same segment. The resources of other departments can be invisible to the marketing VLAN members, accessible to all, or accessible only to specified individuals, depending on how the IT manager has set up the VLANs. 306