Network Protocol is a set of rules that governs the communications between computers on a network. What is a Network Protocol Rules of Network Protocol include guidelines that regulate the following characteristics of a network: access method, allowed physical topologies, types of cabling, and speed of data transfer. Types of Network Protocols The most common network protocols are: Ethernet Local Talk Token Ring FDDI ATM The followings are some commonly used network symbols to draw different kinds of network protocols. Ethernet The Ethernet protocol is by far the most widely used one. Ethernet uses an access method called CSMA/CD (Carrier Sense Multiple Access/Collision Detection). This is a system where each computer listens to the cable before sending anything through the network. If the network is clear, the computer will transmit. If some other nodes have already transmitted on the cable, the computer will wait and try again when the line is clear. Sometim
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