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The 802.5 standards describe Token Ring technology.
Token Ring
IEEE 802.5
No. Ethernet and token ring have now become standards. However, the access method and the standard are not always the same. Ethernet is based on IEEE 802.3 standards, but is not exactly the same as IEEE 802.3. Some vendors' IEEE 802.3 equipment will not work with ethernet. Token ring and 802.5 are the same, despite token ring's origins as an IBM proprietary standard. Non-IBM vendors can provide 802.5 equipment that will work with IBM token rings, provided the equipment follows 802.5 standards
An IEEE standard for a token ring local area network access method, which is widely implemented in Token Ring.ieee-802
How does Token Bus (IEEE 802.4) enforce discipline on a logical ring topology? ----
Token Ring (IEEE 802.5) FDDI (Fiber Distributed Data Interface) Actually came across this as I was checking my answer for a Networking final.
Physical and Data link layers
Token bus is as far as I know the theory that token ring's transmission is based on. Both physical layers of networking, can be said that they were two competing set of networking technology, both initial members of IEEE 802.x networking family. Token ring is based on passing packets along a track from one station to another like a passenger in a train, for fail-safe redundancy there were 2 duplicate tracks can be thought as one clockwise one counter-clockwise in a ringed/circular arrangement. Ethernet is rather about shooting packets from source to destination. If there is another packet being shot a collision is this, the packets are lost and shooters agree to re-shoot at a random time hopefully and likely so avoid the collision again, but if it happens again do it again and again...
Uranus
Eathernet LAN Sources: Networks+ Guide to Networks 5E Page 59
Token ring hub