You are in the: Small Business Computing Channelarrow View Sites +
Small Business Technology
ECommerce-Guide | Small Business Computing | Webopedia | WinPlanet | Close
Enter a word for a definition... ...or choose a computer category.

   Term of the Day
   New Terms
   New Links
   Quick Reference
   Did You Know?
   Tech Support
   Webopedia Jobs
   About Us
   Link to Us

talk to us
   Submit a URL
   Suggest a Term
   Report an Error
Internet Lists
Internet News
Internet Resources
Linux/Open Source
Personal Technology
Small Business
Windows Technology
xSP Resources
Corporate Info
Tech Jobs
E-mail Offers
  Be a Commerce Partner

logical topology
Last modified: Monday, August 05, 2002 

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.

For network diagrams, see Network Topology Diagrams in the Quick Reference section of Webopedia.

E-mail this definition to a colleague

For pages about logical topology . Also check out the following links!

Related Links

Understanding the topology of LAN technologies can tell you a lot about your alternatives when installing or expanding a LAN.

related categories

Network Protocols

Network Topologies


related terms

5-4-3 rule

local-area network




physical topology

ring network

star network

token bus network

token-ring network


Give Us Your

Shop for: Other Network Devices - Nortel BayStack Advanced Network Management Module (CG1007003) Remote Management Adapter Products
Remote Management Adapter, For: PC Platforms, Package Qty: 1

Compare all matches:
1 Store Offers from $95-$95

Top Store Offers - 95.00
more stores...

JupiterWeb networks:

Search JupiterWeb:

Jupitermedia Corporation has three divisions:
Jupiterimages, JupiterWeb and JupiterResearch

Legal Notices, Licensing, Reprints, & Permissions, Privacy Policy.

Jupitermedia Corporate Info | Newsletters | Tech Jobs | Shopping | E-mail Offers