Virtual networks.
Computer and Network Examples
A Virtual network is a computer network that consists of virtual network links, i.e. between the computing devices there isn't a physical connection.
Well known forms of network virtualization are virtual networks based on the virtual devices (for example the network based on the virtual devices inside a hypervisor), protocol-based virtual networks (VLAN, VPN, VPLS, Virtual Wireless network, etc.) and their combinations.
VLAN (Virtual LAN) is a logical LAN (local area network) based on the physical LAN that is divided on a multiple logical LANs using a VLAN ID.
VLAN can be on a VPN (virtual private network). VPN consists of several remote end-points (such as routers, VPN gateways of software clients) that are connected by the tunnel over another network. Two connected end points form the PTP VPN (Point to Point Virtual Private Network), more than two end points form a Multipoint VPN.
VPLS (Virtual Private LAN Service) is a specific type of Multipoint VPN. They can be Transparent LAN Services (TLS) that provides geographic separation and Ethernet Virtual Connection Services (EVCS) that provides geographic separation and VLAN subnetting.
Virtual Wireless network is a set of Wireless Access Points that behaves as one.
Computer and Networks Area for ConceptDraw DIAGRAM provides professional looking examples, the libraries with ready-to-use predesigned vector stencils to help you create the Virtual Networks quick, easy and effective.
Example 1. Virtual network.
This example was created in ConceptDraw DIAGRAM using the Computer and Networks Area of ConceptDraw Solution Park and shows the Virtual network.
The diagrams designed with ConceptDraw DIAGRAM are vector graphic documents and are available for reviewing, modifying, and converting to a variety of formats (image, HTML, PDF file, MS PowerPoint Presentation, Adobe Flash or MS Visio).
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A Wireless network is a type of the computer network that uses the wireless connections for connecting network nodes for data transfer. The wireless networks are very useful, inexpensive, popular and widely used. They are easy setup and do not require the cables installation.
Using the solutions of the Computer and Networks Area for ConceptDraw DIAGRAM you can design the wireless network diagrams of any complexity quick and easy.
Picture: Wireless network. Computer and Network Examples
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The ConceptDraw vector stencils library Cisco Products Additional contains equipment symbols for drawing the computer network diagrams.
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This sample shows the arrangement of the routers and other WLAN devices in the hotel. This diagram allows you to see how the Wi-Fi connection to the Internet is realized in the hotel. Wi-Fi (Wireless Fidelity) is a wireless technology that allows to electronic devices exchange the data or connect to the internet in the 2.4 GHz and 5 GHz bands.
Picture: Hotel Wifi Routers
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Any modern hotel must have a working computer network and a wifi network, allowing for Internet access for both clients and employees. Designing such networks first requires drawing a hotel network topology diagram, which is a type of a network diagram representing the physical graph of network nodes and connections. Modern digital drawing tools like ConceptDraw DIAGRAM include many templates of the different parts of a network diagram, such as hotel guest-house wifi network, to help you with this task.
Picture: Hotel Network Topology Diagram. Hotel Guesthouse WiFi Network
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There are several basic topologies including bus, star, point-to-point, ring and a hybrid. Two computers can form a fully connected network topology, and as the number of network nodes increases, the network diagram gets more complicated. This type of topology is also called a full mesh.
This is a visual example of a computer network built using a mesh topology. This diagram presents the schematic structure of the full mesh network topology. A common mesh network topology means that each network device is connected with several points in the network, so if the one node of the network goes down, it does not cause an issue with an operability of the entire computer network. In a full mesh network topology, every computer or device in the network is interconnected with each of the other devices in the network.
Picture: Fully Connected Network Topology Diagram
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Picture: Telecommunications Network
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The reliability is a cornerstone for any corporate computer network. If you want to provide a high fault tolerance, a mesh network topology would be the solution. The main advantage of this network is that every node can work as a commutator, although it’s not easy to set up this kind of network.
A mesh network topology may be full, or partial. Full mesh network means that each node of the network (computer, workstation or other equipment) is connected directly to each of the other nodes. A partial mesh topology means that a part of nodes are connected with a whole network, and the other part of nodes are only connected to those equipment, they exchange the majority of data. This illustration shows schematic diagram of a partial mesh network containing six nodes. Each node is represented as a circles and connections are drawn as straight lines. The connections may be both wired and wireless. This scheme can be used to make the specific logical or physical network diagrams by means the ConceptDraw Computer and Networks solution.
Picture: Mesh Network Topology Diagram
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Picture: Telecom Wireless Plan
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