Distributed backbone
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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 (Dean, 2010, p. 202).[1] 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 (Dean, 2010, p. 202).[1] 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 the network..[2]
Uses
Distributed backbones, in all practicality, are in use by all large-scale networks.[3] Application in enterprise-wide scenarios confined to a single building is also practical, as certain connectivity devices can be assigned to certain floors or departments.[1] 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 .[4]
Possible Design Flaws
There is the possibility of single points of failure, referring to connectivity devices high in the series hierarchy.[1]
References
- ^ a b c d Tamara Dean. Network+ Guide to Networks. Course Technology, Cenage Learning, 2010, p. 202.
- ^ BICSI Lan Design Manual - CD-ROM, Issue 1, Distributed backbone network, p.20[1], 1996, accessed May, 7 2011.
- ^ Dooley, Kevin. Designing Large-Scale Networks, p.23[2],, O'Reilly Online Catalog, January, 2002, accessed May, 7 2011.
- ^ Distributed Backbone[3], accessed May, 7 2011.