ITM 600 Lecture Notes - Lecture 1: Ieee 802.1Q, Network Administrator, Reference Architecture
16 Apr 2017
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Document Summary
Topology is defined as a branch of mathematics, the study of geometric properties and spatial relations unaffected by the continuous change of shape or size of figures. Types; bus topology, uses a common backbone to connect all devices, single cable used, it is full duplex (both parties can talk at once). The receipts of a packet ignore it if not addressed to them, at the end of the bus there is a terminator which absorbs any signal and removes the signal from the bus. Advantages, usually easy to connect, requires less wiring and cheap. disadvantages, network shuts down if there is a break in a wire, hard to identify the problem if the network shuts down. Star topology; each station is connected to common central node, has a central connection called hub node, could be a hub or switch. Requires more cables, a failure in star will only take out 1 computer. If the hub fails the entire network fails.
