RTSP The Real-Time Streaming Protocol (RTSP) controls the transmis-
sion of audio and video data (streams) via IP-based networks. While
the Real-Time Transport Protocol (RTP) is used to transmit user
data, the main function of RTSP lies in controlling the data streams.
Rule chain A rule chain contains a combination of different filter rules. A filter
rule selects part of the data traffic based on particular features, e. g.
the source IP address, and applies an action, e. g. block, on this
part.
S2M interface See Primary Rate Interface.
SA So-called security associations (SA) receive information about the
measures to secure the communication connection. One SA, at
least, is a prerequisite for establishing a secure connection. An SA
receives the subscriber's IP address, the authentication protocol
used, the encryption algorithm used, the security parameter index
(SPI), the selector and the period of validity.
SAD All the parameters that are set while configuring IPSec are stored in
the router in the form of databases. These are the Security Policy
Database (SPD) and the Security Association Database (SAD). The
SAD receives information about every security connection. That is,
which encryption algorithms, keys, protocols, session numbers or
periods of validity are to be used. For an outgoing connection, an
SPD entry displays an SAD entry. In this way, the SPD can specify
which SA is to be used for a particular packet. With an incoming
connection, the SAD is addressed in order to specify how the packet
is to be processed.
SCEP The Simple Certificate Enrollment Protocol (SCEP) is used to man-
age digital certificates.
Scheduling Scheduling refers to the planning of tasks. Particular actions (e. g.
deactivating an interface) are triggered by events (e. g. time or
changing a MIB variable).
Serial interface The serial interface is used to exchange data between computers
and peripheral devices. It can be used to configure the device or to
transmit data via an IP infrastructure (Serial over IP).
Server A server offers services used by clients.
SFP Small Form-factor Pluggable (SFP) is a plug-in connector that was
developed for extremely fast Ethernet.
Glossary bintec elmeg GmbH
546 bintec RS Series
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