| |
|
R |
| RADIUS |
 |
Remote Authentication Dial-In User Services |
| RAM |
|
Remote Access Multiplexer (i.e. mini-RAM) |
| RAN |
|
Remote Access Node |
| RARP |
|
Reverse
Address Resolution Protocol |
| RAUDIO |
|
Real
Audio |
| RBCS |
|
Remote
Boot and Configuration Service |
| RBOC |
|
Regional
Bell Operating Companies, one of seven telephone companies
created after AT&T divestiture in 1984. |
| Redirector |
|
Software
that intercepts requests for resources within a computer
and analyzes them for remote access requirements. |
| Remote
access |
|
Access
to network resources not located on the same physical
Ethernet. (Physical Ethernet here refers to an entire
site network topology.) |
| Remote
bridge |
|
Bridge
that connect physically dissimilar network segments
across WAN links. |
| Remote
control |
|
Form
of remote access where a device dialing in assumes
control of another network node - all keystrokes on
the network node. Used primarily with IPX protocol. |
| Remote
node |
|
Form
of remote access where the device dialing in acts as
a peer on the target network. Used
with both IP and IPX protocols. |
| Repeater |
|
Device
that connects 802.3 network cable segments. Regeneration
and retiming ensure that the signal is clearly transmitted
through all segments. (The functionality is defined
in detail in the IEEE 802.3 specification.) |
| RF |
|
Radio
Frequency |
| |
|
|
| RFC |
|
Request
for Comment |
| Ring |
|
A
network topology in which the nodes are connected in
a closed loop. Data is transmitted from node to
node around the loop, always in the same direction. |
| Ring
latency |
|
Time
required for a signal to propagate once around a ring
in a Token Ring or IEEE 802.5 network. |
| Ring
topology |
|
Network
topology in which a series of repeaters are connected
to one another by unidirectional transmission
links to form a single closed loop. Each station on
the network connects to the network at a repeater. |
| RIP |
|
Routing
Information Protocol, a routing protocol for TCP/IP
networks. |
| RISC |
|
Reduced
Instruction Set Computing |
| Rlogin |
|
Rlogin is an application that provides a terminal interface
between UNIX hosts using the TCP/IP network protocol.
Unlike Telnet, Rlogin assumes the remote host is (or
behaves like) a UNIX machine. |
| RMON |
|
Remote
Monitoring, subset of SNMP MIB II allows flexible and
comprehensive monitoring and management capabilities
by addressing up to 10 different groups of information. |
| ROM |
|
Read
Only Memory, a memory device that retains its information
even when power to it is removed. A ROM
version on a network device does not need to download,
since the ROM contains the entire executable code and
thus never needs to reload it. Frequently, the ROM
is provided as "flash ROM," which can be
reprogrammed by downloading if the user chooses. |
| Root
bridge |
|
Appointed
by the spanning tree and used to determine which managed
bridges to block in the spanning
tree topology. |
| ROSE |
|
Remote Operation Service Element |
| Router |
|
Protocol-dependent
device that connects subnetworks together. It is useful
in breaking down a very large
network into smaller subnetworks.Routers
introduce longer delays and typically have much lower
throughput rates than bridges. |
| Routing
bridge |
|
MAC-layer
bridge that uses network layer methods to determine
a network's topology. |
| Routing
protocol |
|
Protocol
that accomplishes routing through the implementation
of a specific routing algorithm. |
| Routing
table |
|
Table
stored in a router or some other internetworking device
that keeps track of routes (and, in some cases,
metrics associated with those routes) to particular
network destinations. |
| Routing
update |
|
Message
sent from a router to indicate network reachability
and associated cost information. Routing
updates are typically sent at regular intervals and
after a change in network topology. |
| RSRB |
|
Remote
Source-Route Bridging |
| RST |
|
Remote
Subscriber Terminal |
| RT |
|
Remote
Terminal |
| RTEL |
|
Lantronix' "reverse Telnet" software allows
hosts using TCP/IP to establish a session with a device
attached to a terminal server port. |
| RTP |
|
Real Time Protocol |
| |
|
|
