It also mentions connections by devices like hubs which are simple repeaters and widely used in offices. The best part of this book is the section on bridging. One of the author's greatest contributions, the spanning tree algorithm, was made in this area. Routing is complex. The author also did an excellent job in summarizing this issue.
Most chapters are devoted to routing.
Compared with other books on routing techniques, this one covers more general topics and has more author's comments. Moreover, Perlman's book is outstanding in that it deals with both bridging and routing in one text. Bridging techniques rarely found anywhere else are described in depth. Confusion in networking terminology often arises in the networking industry. This is due to the complexity of the problems and, historically, the lack of consensus.