Overlay networks.
Computer and Network Examples
An Overlay network is a computer network that is built on the top of another network. The nodes of the overlay network are connected by virtual or logical links. Overlay networks are widely used in telecommunication. They also allow to improve Internet routing.
The overlay networks are sufficiently complex. They consist of the logical layers that are built and operated by different entities with general concerns. This example was created in ConceptDraw DIAGRAM using the Computer and Networks Area of ConceptDraw Solution Park and shows the Overlay network broken up into the logical layers.
Example 1. Overlay networks.
This example was redesigned from the file [https://commons.wikimedia.org]
Using the solutions of the Computer and Networks Area for ConceptDraw DIAGRAM with wide set of ready-to-use predesigned vector stencils and examples you can design anyone overlay networks quick and easy.
The diagrams created 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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Wireless network topology — logical topology.
Wireless network topology shows how the computers connect each other when there is no physical connection. The computers communicate each using the wireless devices.
Picture: Wireless Network Topology
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Local area network connects computers and other network appliances within an area, such as office building or a campus. It can be difficult to provide such network without a predesigned plan. For these purposes you can use network diagram software, which helps you to create LAN network diagrams and office network diagrams quickly and effortless. This will speed up your work and you can save the diagram for the future network improvements.
The following diagram illustrates a network topology of the small office. LAN configuration has a star topology. The local network joins 8 computers among which are several desktop PCs, laptop, two iMacs and iBook. The end-point devices are divided into three groups. Each group is connected to its hub. There is a network printer and a modem, which are interconnected with other devices through a network server. Each computer on the LAN can access the server through a corresponding hub.
Picture: Network Diagram Software. LAN Network Diagrams. Physical Office Network Diagrams
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A list of parameters on which networks differ is very long. A large network with a range up to 50 kilometers is called metropolitan area network (MAN), and this type of network can include several local area networks. Metropolitan networks in their turn connect into global area networks.
Here you will see a Metropolitan Area Network (MAN). This is an extensive network which occupies a large territory including a few buildings or even the whole city. The space of the MAN is bigger than LAN, but lower than WAN. MAN comprise a lot of communication equipment and delivers the Internet connection to the LANs in the city area. Computer and Networks solution for ConceptDraw DIAGRAM provides a set of libraries with ready-to-use vector objects to design various kinds of computer networks.
Picture: Metropolitan area networks (MAN). Computer and Network Examples
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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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The ConceptDraw vector stencils library Cisco Products Additional contains equipment symbols for drawing the computer network diagrams.
Picture: Cisco Products Additional. Cisco icons, shapes, stencils and symbols
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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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The Ring Network Topology Diagram examples was created using ConceptDraw DIAGRAM software with Computer and Networks solution.
Picture: Ring Network Topology
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There are three main types of organizational structures which can be adopted by organizations depending on their objectives: functional structure, divisional structure, matrix structure.
ConceptDraw DIAGRAM diagramming and vector drawing software enhanced with 25 Typical Orgcharts solution from the Management area of ConceptDraw Solution Park is ideal for designing diagrams and charts of any organizational structure types.
Picture: Organizational Structure Types
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