However, this type of backbone is useful for the one who wants to interconnect two types of subnetworks, with ability to manage and troubleshoot them. This is highly risky, since if the central device fails, the whole network would be down. Although they are commonly installed for the enterprise network communication, they are also designed into building-management systems and electrical-power coordination. Definition and Introduction: Campus LAN and Wireless LAN There is a tendency to discount the network as simple plumbing to believe that the only design considerations are the size and the length of the pipes or the speeds and feeds of the links, and to dismiss the rest as unimportant. It should have powerful computational power in order to manage big traffic coming in. Building Integration System Fiber optics: a backbone for advanced building design Fiber-optic cables are an integral part of a building communication system. As Figure 4 shows, the central device is the highest level of the backbone. This type of backbone uses single, powerful router as the central connection point for multiple subnetworks. Overall, it is cheap, easy, and quick to implement the distributed backbone network. This backhaul link is created through a combination of wireless microwave connections and wired dark fiber and Ethernet circuits. Distributed backbone that connects multiple LANs. Jonathan Kim - JBackhaul transport provides a high-capacity bridge between wireless cell towers and wired fiber-optic infrastructure. LANs are interconnected with routers that form the backbone.įigure 3. At the distribution layer a routed backbone uses routers or layer 3 switches to connect a series of LANs (access layer) to a single shared media backbone. type of cable though is determined by the equipment being used, LED. Distributed backbone adopts hierarchical design of the network. This type of network can have daisy chain linked devices for the backbone, however, designer should consider the same limitations as for the serial backbone.įigure 3 provides a view of more complicated distributed backbone that connects multiple LANs together. There are distributed backbones that snake throughout a. Distributed backbone allows simple administration and management of the network due to its segregation. Each node is connected directly to a central device such as a hub or a switch, as shown in Figure 5.17. The star was first popularized by ARCNET, and later adopted by Ethernet. This type of backbone is easily scalable since new layers of devices can be added with no troubles. Joshua Feldman, in CISSP Study Guide (Third Edition), 2016 Star Star topology has become the dominant physical topology for LANs.
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