Fig. 23.10.1 shows a drastically simplified picture of a token ring LAN. We do not have further space to explore the intricacies and problems of token rings herein. One of the most serious of these problems relates to when the token is destroyed or lost, or one of the computer dies in the ring. Of course, these problems have all been solved, to at least some satisfactory degree, in commercial token-ring products, which are quite popular and perform well.