
Click here to free download Logical Network Diagram Software. Then you can use the build-in template to create and present your logical network diagrams in minutes. Edraw Network Diagram is ideal for network engineers and network designers who need to draw logical network diagrams and physical network diagrams. It had defined some common used symbols in drawing network diagrams. Just drag and drop pre-drawn shapes representing computers and network devices.
Logical Network Symbols

Logical Network Diagram - Network and Peripherals
Logical Network Diagram - Computers and Monitors
The logical network Diagram will be used to represent how you network connections are using the upper layer of the OSI, and will help to understand your IP addressing.
Also called signal topology. Every LAN has a topology, or
the way that the devices on a network are arranged and how they communicate with
each other. The way that the workstations are connected to the network through
the actual cables that transmit data -- the physical structure of the network --
is called the physical topology. The logical topology, in contrast, is the way
that the signals act on the network media, or the way that the data passes
through the network from one device to the next without regard to the physical
interconnection of the devices.
Logical topologies are bound to the network protocols that direct how the data
moves across a network. The Ethernet protocol is a common logical bus topology
protocol. LocalTalk is a common logical bus or star topology protocol. IBM's
Token Ring is a common logical ring topology protocol.
A network's logical topology is not necessarily the same as its physical
topology. For example, twisted pair Ethernet is a logical bus topology in a
physical star topology layout. While IBM's Token Ring is a logical ring
topology, it is physically set up in a star topology.