Siemens SCALANCE W786-xPRO Operating Instructions Manual page 245

necessary maintenance. In a general sense, QoS means the quality characteristics of a
network as a whole from the perspective of the user of a particular service.
RADIUS
Remote Authentification Dial In User Service. A method in which the authentication is
handled on a separate server.
Roaming
Free movement of wireless LAN nodes even beyond the boundaries of an access point's
cell. The nodes and can move from one cell to the next without any noticeable interruption.
Server
A server is a device or generally an object that can provide certain services at the request of
a client.
Services
Services provided by a communication protocol.
SINEMA E
The planning, simulation and configuration software SINEMA E is used to plan and configure
IWLAN applications. It can be used to visualize IWLAN networks, for example according to
coverage, data transfer rate, signal/noise ratio and overlapping taking into account
environmental and device characteristics.
SNMP
Simple Network Management Protocol. Standardized protocol for exchange of network
management information.
SSID
The Service Set Identifier (SSID) is used to identify a mobile wireless network based on
IEEE 802.11.
Subnet mask
The subnet mask specifies which parts of an IP address are assigned to the network
number. The bits in the IP address whose corresponding bits in the subnet mask have the
value 1 are assigned to the network number.
SCALANCE W786-xPRO
Operating Instructions, Release 08/2007, C79000-G8976-C221-02
Glossary
245