Notes and Study Materials

Star Backbone:

 

In a star backbone, sometimes called a collapsed or switched backbone, the topology of the backbone is a star. In this configuration, the backbone is just one switch that connects the LANs.

 

The following figure shows a star backbone. In this configuration, the switch does the job of the backbone and at the same time connects the LANs.

 

 

 

star backbone_network

 

Star backbones are mostly used as a distribution backbone inside a building. In a multi floor building, we usually find one LAN that serves each particular floor. A star backbone connects these LANs. The backbone network, which is just a switch, can be installed in the basement or the first floor, and separate cables can run from the switch to each LAN. If the individual LANs have a physical star topology, either the hubs (or switches) can be installed in a closet on the corresponding floor, or all can be installed close to the switch.

 

 

For Further Reading:

Different Connecting Devices
Loop problem in Transparent Bridges
Bus Backbone Network
Connecting Remote Lans
Back to DCN Questions and Answers