Backbone Network

Backbone Network is a network containing high capacity connecting infrastructure backbone to different part of network.

Backbone network allows multiple LAN to get connected.

There are three categories of backbone network:-

1. Bus Backbone

Bus backbones are normally used as a distribution backbone to connect different buildings in an organization. Each building can comprise either a single LAN or another backbone (normally a star backbone). A good example of a bus backbone is one that connects single- or multiple-floor buildings on a campus.

2. 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. … In a multi floor building, we usually find one LAN that serves each particular floor. A star backbone connects these LANs.

3. Remote LAN Backbone

In this type of backbone network the connection are done through the bridge called remote bridges which acts as connecting devices in connect LANs as point to point network link.

Example of point to point networks are leased telephone lines or ADLS lines. Such a point to point network can be considered as being equivalent ta a LAN without stations.