Token Ring
networks currently run at either 4 or 16 Mbps, as specified by IEEE 802.5
Token Ring networks use the token-passing routine and a star-ring hybrid physical topology
FDDI is a networking standard originally specified by ANSI in mid-1980s and later refined by ISO
ATM relies on a fixed packet size to achieve data transfer rates up to 9953 Mbps
ATM relies on virtual circuits to determine the optimal path between sender and receiver