User`s manual

431
DWS-1008 User’s Manual
D-Link Systems, Inc.
Appendix D - Glossary
QoS
Quality of service. A networking technology that seeks to measure, improve, and guarantee
transmission rates, error rates, and other performance characteristics, based on priorities,
policies, and reservation criteria arranged in advance. Some protocols allow packets or
streams to include QoS requirements.
quality of service
See QoS.
RA
See registration authority (RA).
radio prole
A group of parameters, such as the beacon interval, fragmentation threshold, and security
policies, that you congure in common across a set of radios in one or more DWL-8220AP
access points. A few parameters, such as the radio name and channel number, must be set
separately for each radio.
RADIUS
Remote Authentication Dial-In User Service. A client-server security protocol described in
RFC 2865 and RFC 2866. RADIUS extensions, including RADIUS support for the Extensible
Authentication Protocol (EAP), are described in RFC 2869. Originally developed by Livingston
Enterprises, Inc., to authenticate, authorize, and account for dial-up users, RADIUS has been
widely extended to broadband and enterprise networking. The RADIUS server stores user
proles, which include passwords and authorization attributes.
RC4
A common encryption algorithm, designed by RSA Data Security, Inc., used by the Wired-
Equivalent Privacy (WEP) protocol and Temporal Key Integrity Protocol (TKIP).
received signal strength indication
See RSSI.
registration authority (RA)
Network software that veries a user (client) request for a digital certicate and instructs
the certicate authority (CA) to issue the certicate. Registration authorities are part of a
public-key infrastructure (PKI), which enables secure exchanges of information over a
network. The digital certicate contains a public key for encrypting and decrypting messages
and digital signatures.
Remote Authentication Dial-In User Service
See RADIUS.