The IEEE 802.four and 802.5 standards and the IBM Token Ring protocol (with which IEEE 802.5 is compatible) use token passing, an altogether diverse method than CSMA/CD, for medium access handle. Phase three (Participation in ring poll) — A station learns the address of its Nearest Active Upstream Neighbour (NAUN) and makes its address recognized to its nearest downstream neighbour, top to the creation of the ring map. If the status line indicates that the interface and line protocol are not up, check the cable from the router to the MAU.
It is also achievable to extend the configuration in Figure 9-two to involve a ring consisting of several interconnected hubs. In the MSAU, if we do not connect a cable to a Ring In or Ring Out port, that port loops the signal back by means of the MSAU to retain the integrity of the ring.
MAUs, repeaters, and …
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