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Ssid, Switch, D as – Siemens Simens Gigaset WLAN dsl/cable SE551 User Manual

Page 139: Can log, See p, Nnel bundling, the, Super g, Transmis, Static ip address, Subnet mask

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139

Glossary

Gigaset SE551 WLAN dsl/cable / ENG / A31008-M1029-B101-2x-7619 / glossary.fm / 17.11.2008

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SSID
Service Set Identifier
The SSID is used to identify the stations in a wireless network (

WLAN

). All wireless net-

work components with the same SSID form a common network. The SSID can be
assigned by the network operator.

Static IP address
A static

IP address

is assigned to a network component manually during network con-

figuration. Unlike a

Dynamic IP address

, a static (fixed) IP address never changes.

Subnet
A subnet divides a network into smaller units.

Subnet mask
The subnet mask determines how parts of the

IP addresses

of a network represent the

network number and how many the computer number.
The subnet mask in a network administered by the Gigaset SE551 WLAN dsl/cable is
always 255.255.255.0. That means the first three parts of the IP address form the net-
work number and the final part is used for assigning computer numbers. The first three
parts of the IP address of all network components are in this case always the same.

Super G
Super G is an extension of

IEEE 802.11g

. Channel bundling doubles the maximum trans-

fer rate to 108 Mbps. Unlike other technologies (e.g. 125 Mbps technology) which work
by compressing data, here the transfer rate is actually doubled. If data is already com-
pressed (ZIP, RAR, MP3, MPEG etc.) data compression offers no significant improve-
ments.

Switch
A switch, like a

Hub

, is an element used to link different network segments or compo-

nents. Unlike a Hub however, the Switch has its own intelligence that enables it to for-
ward packets to only the subnet or network component they are meant for.
See also:

Bridge

,

Hub

,

Router

,

Gateway

TCP
Transmission Control Protocol
The TCP

Protocol

is part of the

TCP/IP

protocol family. TCP handles data transport

between communication partners (applications). TCP is a session-based transmission
protocol, i.e. it sets up, monitors and terminates a connection for transporting data.
See also

UDP