Control of duplicate addresses for FDDI

Duplicate station addresses can disrupt operation of a token ring. Failure symptoms include failure to initialize the ring (make a token), false re-initialization of the ring, and the inability of certain stations to communicate with other stations. These problems were recognized and some solutions for simple cases are included in the FDDI standards Additional cases result from common usage of station addresses which are not solved by the standard algorithms. For example, stations may have multiple individual addresses and may use some addresses as destination addresses but not source addresses. These more complicated fault cases and solutions for them are discussed