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R
Remote Authentication Dial-In User Service (RADIUS). A client/server security protocol created by
RADIUS
Livingston Enterprises. Security information is stored in a central location, known as the RADIUS
server.
Permits system administrators to track dial-in use.
RADIUS accounting
client
Controls access to specific services on the network.
RADIUS security
client
Routed bridge encapsulation. The process by which a stub-bridged segment is terminated on a
RBE
point-to-point routed interface. Specifically, the router is routing on an IEEE 802.3 or Ethernet header
carried over a point-to-point protocol such as PPP, RFC 1483 ATM, or RFC 1490 Frame Relay.
Route distinguisher. An 8-byte value that is concatenated with an IPv4 prefix to create a unique VPN
RD
IPv4 prefix.
Routing Information Protocol. An IGP used to exchange routing information within an autonomous
RIP
system, RIP uses hop count as a routing metric.
The path that network traffic takes from its source to its destination. The route a datagram follows can
route
include many gateways and many physical networks. In the Internet, each datagram is routed
separately.
A system responsible for making decisions about which of several paths network (or Internet) traffic
router
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."
Information stored within a router that contains network path and status information. It is used to select
routing table
the most appropriate route to forward information along.
S
Sustainable cell rate. Parameter defined by the ATM Forum for ATM traffic management. For VBR
SCR
connections, SCR determines the long-term average cell rate that can be transmitted.
Simple Network Management Protocol. Network management protocol used almost exclusively in
SNMP
TCP/IP networks. SNMP provides a means to monitor and control network devices, and to manage
configurations, statistics collection, performance, and security, typically through the use of a network
management system.
Switched virtual circuit. Virtual circuit that is dynamically established on demand and is torn down
SVC
when transmission is complete. SVCs are used in situations where data transmission is sporadic. Called
a switched virtual connection in ATM terminology. Compare with PVC.
OL-2226-23
Cisco 10000 Series Router Software Configuration Guide
Glossary
GL-9
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Table of Contents
Troubleshooting
