Backoff

Graphical networks that represent probabilistic relationships among variables. The nodes represent uncertain variables and the arcs represent the causal/relevance relationships between the variables. The probability tables for each node provide the probabilities of each state of the variable for that node, conditional on each combination of values of the parent node.
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A network access method that uses a distinctive character sequence as a symbol (token), which is passed from node to node, indicating when to begin transmission. Any node can remove the token, begin transmission, and replace the token when it is finished.
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A 6-byte address written in hexadecimal. The first 3 bytes of the address indicate the vendor or manufacturer of the physical network interface. The last 3 bytes make up a unique number assigned to that interface by the manufacturer. No two devices on the same network can have the same MAC address.
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Standardized datalink layer address ingrained into a NIC that is required for every port or device that connects to a LAN. Other devices in the network use these addresses to locate specific ports in the network and to create and update routing tables and data structures. MAC addresses are 6 bytes long and are controlled by the IEEE. Also known as
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Non-IP protocols are protocols that serve as an alternative to IP at the OSI Network layer (3). In the past, non-IP protocols were widely used. However, with the dominance and success of TCP/IP, non-IP protocols have become the purview of special- purpose networks. The three most recognized non-IP protocols are IPX, AppleTalk, and NetBEUI.
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