The central unit can be located in the building’s main equipment room or, in a campus scenario, in the IS department’s building.ĭistributed backbones generally have a greater degree of fault tolerance than collapsed ones, because the collapsed backbone unit forms a single point of failure. The central unit is often referred to as the collapsed backbone, although this term properly describes the entire configuration. Refers to using cabling to directly join each departmental network’s main hub or router using backbone cabling to a central hub, switch, or router in a star topology (see illustration). In a typical scenario, each floor or building might have a local area network (LAN) and wiring closet containing, among other things, a main hub or router.īackbone cabling is then run between floors or buildings, connecting the main hub or router for each department into a bus-style network (see illustration). This cabling is referred to as backbone cabling, and it connects the hubs, switches, or routers of each network into a single whole. Refers to using cabling to join different departmental networks in a bus topology or mesh topology. These backbones generally fall into two basic categories: Distributed backbone: How does Backbone work?īackbones are primarily used in medium to large-sized networks, such as those occupying a building or a group of buildings on a campus. Two types of backbone: distributed and collapsed.
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