![]() What is a Logical Network Diagram?Ī logical network diagram is focused on the way data flows across the network and how components of the network communicate with each other. Physical network diagrams are valuable when you're setting up or rearranging an office space, documenting your space's current setup, and working on maintenance or making updates to your existing network where the location of devices is important. Think of a physical network diagram like a floor plan for your network. They're literal and detailed, including things like cables to show the layout of your network. What is a Physical Network Diagram?Ī physical network diagram shows how hardware is arranged. There are two types of network diagrams: physical and logical. More importantly, they show how those components interact with one another. They typically show the components of a network, like routers, firewalls, and devices like desktop computers, laptops, or printers. Network diagrams are easy-to-read, visual representations of digital networks. To follow along, you can start a free trial of Gliffy Online or check out our diagramming apps for Confluence and Jira. In these network diagram examples and tutorials, we're using Gliffy. Why You Should Use Network Diagram Software.Step-by-Step: How to Draw a Network Diagram.Video Tutorial: How to Create a Network Diagram in Gliffy.Read on to learn how to create a network diagram with Gliffy, or jump ahead to one of the following sections: Gliffy's easy-to-use online diagramming tool means you can drag and drop shapes to create a network diagram that describes your next project or your current set-up. Since Cisco has a large Internet presence and designs a broad variety of network devices, its list of symbols ("Network Topology Icons") is exhaustive.Drawing network diagrams with Gliffy is easy, regardless of which type of network topology you’re working with. For example, if a network appliance is intended to be connected through the Internet to many end-user mobile devices, only a single such device may be depicted for the purposes of showing the general relationship between the appliance and any such device.Ĭisco uses its own brand of networking symbols. In addition, when the scope of a diagram crosses the common LAN/ MAN/WAN boundaries, representative hypothetical devices may be depicted instead of showing all actually existing nodes. At the LAN level, individual nodes may represent individual physical devices, such as hubs or file servers, while at the WAN level, individual nodes may represent entire cities. If the same style of line was used in a WAN (wide area network) diagram, however, it may indicate a different type of connection.Īt different scales diagrams may represent various levels of network granularity. ![]() For example, the sample diagram does not indicate the physical type of connection between the PCs and the switch, but since a modern LAN is depicted, Ethernet may be assumed. ĭepending on whether the diagram is intended for formal or informal use, certain details may be lacking and must be determined from context. For example, in the hypothetical local area network pictured to the right, three personal computers and a server are connected to a switch the server is further connected to a printer and a gateway router, which is connected via a WAN link to the Internet. ![]() Clouds are used to represent networks external to the one pictured for the purposes of depicting connections between internal and external devices, without indicating the specifics of the outside network. routers, and the style of lines between them indicates the type of connection. Readily identifiable icons are used to depict common network appliances, e.g. Computer network diagrams form an important part of network documentation. Schematic of nodes and connections in a networkĪ computer network diagram is a schematic depicting the nodes and connections amongst nodes in a computer network or, more generally, any telecommunications network. ![]()
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