a network that looks like a star can have the logical topology of a bus.
Examples of logical topology
logical topology
A network's logical topology is not necessarily the same as its physical topology.
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Conversely, mapping the data flow between the components determines the logical topology of the network.
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Likewise, the mapping of the flow of data between the nodes in the network determines the logical topology of the network.
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The logical topology can vary depending on the constraints of budget, requirements for system reliability, and the load and generation characteristics.
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Token Ring is a logical ring topology, but is wired a physical star from the Media Access Unit.
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For example, the original twisted pair Ethernet using repeater hubs was a logical bus topology with a physical star topology layout.
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The hub on the other hand, while maintaining a logical ring, allows a star topology on the cable level.
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The inference employs graph theoretic and integer programming methods to elucidate the topology of the pathway under investigation and learn a full logical model that describes its workings.