Practical TCP/IP and Ethernet Networking for Industry

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Figure 2.21

Tree topology

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A common and important method of differentiating between different LAN types is to

consider their media access methods. Since there must be some method of determining

which node can send a message, this is a critical area that determines the efficiency of the

LAN. There are a number of methods, which can be considered, of which the two most

common in current LANs are the contention method and the token passing method.

You will become familiar with these as part of your study of LANs, although some of the

other methods will also be briefly discussed. ...