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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Computer networks nowadays are spread all across the world. The large number of parameters, such as geographic scale or communication protocols, can divide networks. One of the most common types of networks is called local area network (LAN). It convenient to represent network examples by means of diagrams.
This local area network (LAN) diagram provides an easy way to see the way the devices in a local network are interacted. The diagram uses a library containing specific symbols to represent network equipment , media and the end-user devices such as computers (PC, mac, laptop) , network printer, hubs, server and finally a modem. There are two types of network topologies: physical and logical. The current diagram represents precisely a physical type of LAN topology because it refers to the physical layout of a local network equipment.
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What is a Local Area Network?
Examples of LAN Diagrams
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ConceptDraw DIAGRAM is a powerful tool for business and technical diagramming.
Software Development area of ConceptDraw Solution Park provides 5 solutions:
Data Flow Diagrams, Entity-Relationship Diagram (ERD), Graphic User Interface, IDEFO Diagrams, Rapid UML.
Picture: Software Diagram Examples and Templates
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Creating a detailed network plan can cause a lot of headache to an unexperienced user. And it is worth mentioning that ConceptDraw DIAGRAM is a decent tool for creating a network diagram, a tool that is easy-to-use. To get an accurate diagram use the vector shapes from the special libraries that represent workstations, network appliances, wiring systems and connect them with smart-connectors, just as simple as that.
This communication network diagram displays the way different components of a computer network communicate with each other. When representing network information, such as depicting all the equipment in a large network, it is helpful to make visual representation. Network diagram provides an easy way to show the way the connections between an equipment in a large network. This diagram of a communication network depicts a network composed of three sub-networks. It uses a network equipment symbols to represent the different devices that make up a network communication including routers, Ethernet devices and end-point equipment.
Picture: ConceptDraw DIAGRAM Network Diagram Tool
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Cisco Intelligent Services Gateway ISG
Picture: Cisco Intelligent Services Gateway
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Enterprise systems engineers almost every day face the necessity of network diagrams. We should also take into account that Cisco network design is not only limited to computer networks, but, furthermore, you can design telephone networks and much more. You can build an hierarchical model of your network to get better performance and reliability.
This network diagram represents the utilization of Conceptdraw DIAGRAM for network documentation creation. The diagram shows schematically the structure of a node of a large Internet service provider, which is completed on the basis of Cisco equipment. This diagram was designed using the vector library containing the images of Cisco equipment, supplied with Cisco Network Diagrams solution. In total, the solution has more than ten libraries including more than 500 vector icons of Cisco equipment.
Picture: Cisco Network Design
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ConceptDraw - Perfect Network Diagramming Software with examples of Backbone Network Diagrams. ConceptDraw Network Diagram is ideal for network engineers and network designers who need to draw Backbone Network diagrams.
Picture: Network Diagram SoftwareBackbone Network
Studying informatics demands knowledge in the area of computer networks as well. The most famous world network, Internet, is an example of wide area network (WAN) topology that connects devices spread on any distance. Unlike other smaller networks that are limited to a building or to a campus, WAN is almost limitless.
This WAN (wide area network) diagram was created in ConceptDraw DIAGRAM. It shows a telecommunication network that covers a large geographical area connecting several settlements. This type of networks is commonly used by business and government institutions. Using the WANs enables them quickly communicate information between remote geographical points. To reproduce this network diagram, you will need the means, provided by ConceptDraw Computer and Network Diagrams solution.
Picture: Wide area network (WAN) topology. Computer and Network Examples
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Nodes of any computer network are somehow organized in a hierarchy or a layout. Some of the common layouts like star network topology are more reliable and some like ring topology withstand high loads better. It is also important to distinguish logical topologies from physical.
This diagram represents a typical view of the star network topology. The star network topology is one of the most frequently used network topologies in the majority of office and home networks. It is very popular because of its low cost and the easy maintenance. The plus of the star network topology is that if one computer on the local network is downed, this means that only the failed computer can not send or receive data. The other part of the network works normally. The minus of using star network topology is that all computers are connected to a single point-switch, or hub. Thus, if this equipment goes down, the whole local network comes down.
Picture: Star Network Topology
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Special libraries of highly detailed, accurate shapes and computer graphics, servers, hubs, switches, printers, mainframes, face plates, routers etc.
Picture: Network Hubs