| Ring, connectionless, packet switching. |
| FDDI tokens are "captured" and "reissued" |
| Multiple frames can be in transit concurrently |
| "Token holding time" may support priorities |
| "Token rotation time" limits ring latency |
| FDDI uses larger frames (4kB) and supports bandwidth of 100 Mbps (in practice, ~60 Mbps) |
| Token ring protocols are "non-contention" and do not suffer from exponential saturation. |