Glossary Terms - R

RBOC (Regional Bell Operating Company)
See BOC. [Source: RFC 1208]
RTSE (Reliable Transfer Service Element)
A lightweight OSI application service used above X.25 networks to handshake application PDUs across the Session Service and TP0. Not needed with TP4, and not recommended for use in the U.S. except when talking to X.400 ADMDs. [Source: RFC 1208]
RFS (Remote File System)
A distributed file system, similar to NFS, developed by AT&T and distributed with their UNIX System V operating system. See NFS. [Source: RFC 1208]
ROSE (Remote Operations Service Element)
A lightweight RPC protocol, used in OSI Message Handling, Directory, and Network Management application protocols. [Source: RFC 1208]
RPC (Remote Procedure Call)
An easy and popular paradigm for implementing the client-server model of distributed computing. A request is sent to a remote system to execute a designated procedure, using arguments supplied, and the result returned to the caller. There are many variations and subtleties, resulting in a variety of different RPC protocols. [Source: RFC 1208]
repeater (repeater)
A device which propagates electrical signals from one cable to another without making routing decisions or providing packet filtering. In OSI terminology, a repeater is a Physical Layer intermediate system. See bridge and router. [Source: RFC 1208]
RFC (Request For Comments)
The document series, begun in 1969, which describes the Internet suite of protocols and related experiments. Not all (in fact very few) RFCs describe Internet standards, but all Internet standards are written up as RFCs. [Source: RFC 1208]
RARE (Reseaux Associes pour la Recherche Europeenne)
European association of research networks. [Source: RFC 1208]
RIPE (Reseaux IP Europeenne)
European continental TCP/IP network operated by EUnet. See EUnet. [Source: RFC 1208]
RARP (Reverse Address Resolution Protocol)
The Internet protocol a diskless host uses to find its Internet address at startup. RARP maps a physical (hardware) address to an Internet address. See ARP. [Source: RFC 1208]
rlogin (rlogin)
A service offered by Berkeley UNIX which allows users of one machine to log into other UNIX systems (for which they are authorized) and interact as if their terminals were connected directly. Similar to Telnet. [Source: RFC 1208]
router (router)
A system responsible for making decisions about which of several paths network (or Internet) traffic will follow. To do this it uses a routing protocol to gain information about the network, and algorithms to choose the best route based on several criteria known as "routing metrics." In OSI terminology, a router is a Network Layer intermediate system. See gateway, bridge and repeater. [Source: RFC 1208]
RIP (Routing Information Protocol)
An Interior Gateway Protocol (IGP) supplied with Berkeley UNIX. [Source: RFC 1208]

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