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Definition: network topology

The interconnections of nodes in a communications network. Nodes are wired together in a star, bus or ring architecture. Ethernet uses a star configuration, although earlier Ethernets used a bus. Token Ring naturally uses the ring architecture. A mesh topology is usually found in a wide area network (WAN) to provide redundant paths between locations. See Ethernet and Token Ring.

Network Topologies
In a star, all nodes connect through a central point. A bus is a common pathway to every node, while a mesh connects each node with at least two others. A ring ensures each node gets its turn in rotation. See star bus network.