Siemens HiPath C10, User Manual

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Glossary
A31003-W1040-U101-1-7619, July 2006 DRAFT
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HiPath Wireless Controller, Access Points and Convergence Software V4.0, C10/C100/C1000 User Guide
hwc_glossary.fm
Networking terms and abbreviations
asynchronous Asynchronous transmission mode (ATM). A start/stop transmission in
which each character is preceded by a start signal and followed by one
or more stop signals. A variable time interval can exist between
characters. ATM is the preferred technology for the transfer of images.
BSS Basic Service Set. A wireless topology consisting of one Access Point
connected to a wired network and a set of wireless devices. Also called
an infrastructure network.
See also IBSS.
Captive Portal A browser-based authentication mechanism that forces
unauthenticated users to a web page. Sometimes called a "reverse
firewall".
CDR Call Data (Detail) Record
In Internet telephony, a call detail record is a data record that contains
information related to a telephone call, such as the origination and
destination addresses of the call, the time the call started and ended,
the duration of the call, the time of day the call was made and any toll
charges that were added through the network or charges for operator
services, among other details of the call.
In essence, call accounting is a database application that processes
call data from your switch (PBX, iPBX, or key system) via a CDR (call
detail record) or SMDR (station message detail record) port. The call
data record details your system's incoming and outgoing calls by
thresholds, including time of call, duration of call, dialing extension,
and number dialed. Call data is stored in a PC database
CHAP Challenge-Handshake Authentication Protocol. One of the two main
authentication protocols used to verify a user's name and password for
PPP Internet connections. CHAP is more secure than PAP because it
performs a three-way handshake during the initial link establishment
between the home and remote machines. It can also repeat the
authentication anytime after the link has been established.
CLI Command Line Interface.
Collision Two Ethernet packets attempting to use the medium simultaneously.
Ethernet is a shared media, so there are rules for sending packets of
data to avoid conflicts and protect data integrity. When two nodes at
different locations attempt to send data at the same time, a collision
will result. Segmenting the network with bridges or switches is one way
of reducing collisions in an overcrowded network.
Term Explanation
Table 19