||It has been suggested that this article be merged into backbone network. (Discuss) Proposed since May 2011.|
A distributed backbone is a backbone network that consists of a number of connectivity devices connected to a series of central connectivity devices, such as hubs, switches, or routers, in a hierarchy. This kind of topology allows for simple expansion and limited capital outlay for growth, because more layers of devices can be added to existing layers. In a distributed backbone network, all of the devices that access the backbone share the transmission media, as every device connected to this network is sent all transmissions placed on that network.
Distributed backbones, in all practicality, are in use by all large-scale networks. Applications in enterprise-wide scenarios confined to a single building are also practical, as certain connectivity devices can be assigned to certain floors or departments. Each floor or department possesses a LAN and a wiring closet with that workgroup's main hub or router connected to a bus-style network using backbone cabling . Another advantage of using a distributed backbone is the ability for network administrator to segregate workgroups for ease of management.
Possible design flaws
There is the possibility of single points of failure, referring to connectivity devices high in the series hierarchy. The distributed backbone must be designed to separate network traffic circulating on each individual LAN from the backbone network traffic by using access devices such as routers and bridges.
- Tamara Dean. Network+ Guide to Networks. Course Technology, Cengage Learning, 2010, p. 202.
- BICSI Lan Design Manual - CD-ROM, Issue 1, Distributed backbone network, p.20, 1996, accessed May, 7 2011.
- Dooley, Kevin. Designing Large-Scale Networks, p.23, O'Reilly Online Catalog, January, 2002, accessed May, 7 2011.
- Distributed Backbone, accessed May, 7 2011.
- Boon & Kepekci (1996). BICSI Lan Design Manual. Tampa, FL. pp. 20–21.
|This computer networking article is a stub. You can help Wikipedia by expanding it.|