Token bus token ring pdf file

A token is passed around the network nodes and only the node possessing the token may transmit. Performance is fairer and better than ethernetperformance is fairer and better than ethernet. If a node doesnt have anything to send, the token is passed on to the next node on the virtual ring. Thus, token bus networks were seen as somewhat unreliable and difficult to expand and upgrade. Other companies developing token ring networks included apollo computer and proteon. An earlier local area network lan access method developed by ibm. Token ring was created by ibm to compete with what became known as the dix standard of ethernet decintelxerox and to improve upon their previous token bus technology. Up until that time, ibm had produced solutions that started from the. The token is passed from one user to other in a sequence clockwise or anticlockwise. In a token bus lan, the physical media is a bus or a tree and a logical ring is created using coaxial cable. Technology in action chapter 12 flashcards quizlet. Each station knows the address of the station to its left and right. In the mid1980s, token ring ran at 4mbps, which was increased to 16mbps in 1989. S bharadwaj reddy july 15, 2016 september 21, 2016.