This paper evaluates the performance of a fast select connection oriented (FS-CO) logical link control (LLC) protocol in slotted ring networks. The FS-CO-LLC protocol is one of the light-weight protocols. It employs a method of implicit connection establishment and release to reduce overhead of connection control. This paper analyzes the performance (throughput and average response time) of a slotted ring network in whch a single slot circulates by means of Equilibrium Point Analysis. The performance in the case of plural slots is evaluated by simulation. This paper also compares the FS-CO-LLC protocol with connection-oriented (CO) and connection-less (CL) LLC protocols. Numerical results show that the performance of FS-CO-LLC and CL-LLC protocols is superior to that of CO-LLC protocol when the average message length is smaller than the buffer size. On the other hand, when the average message length is larger than the buffer size, CO-LLC protocol has the best performance. It is also shown that the performance of FS-CO-LLC protocol does not degrade but CL-LLC protocol does, even if the average message length becomes larger.