R
random backoff
See [ backoff For CSMA/CD Ethernet, a period of time that a station must wait before retransmitting after participating in a collision. The period is a randomly selected multiple of the slot time. ]
real-time variable bit rate (rt-VBR)

An ATM service that delivers a specified average bandwidth and supports applications such as compressed voice or video, which are delay-sensitive.

registration

The exchange of information between a dedicated Token Ring station and its concentrator port that is required to initiate transmission between the devices.

remote bridges

Bridges that unite separate Ethernet, Token Ring, or FDDI LANs located at different sites into a single LAN. Remote bridges are connected by a wide ...

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