key length is 128, 192 or 256 bits. AES is a very fast and secure al-
gorithm.
Aggressive mode When an IPSec connection is being established, aggressive mode is
used to implement a phase 1 exchange. Aggressive mode offers no
identity protection for negotiating nodes, since they have to transmit
their identity before they can establish a secure channel. See also
Main mode.
AH The authentication header (AH) is used with IPSec to ensure the au-
thenticity and integrity of the packets transmitted and to authenticate
the sender.
Annex A Annex A is a DSL variant which occurs in connection with analogue
telephone connections, e. g. in France.
Annex B Annex B is a DSL variant which occurs in connection with ISDN, e.
g. in Germany.
Annex J Annex J is a DSL variant purely for data transmission, with no voice
data (unbundled connection). Annex J is an extension of specifica-
tion G.992. These DSL connections require no splitter and have a
greater range and faster transmission speed.
Annex L Annex L is an extension of Annex A. The range is increased at the
expense of the data transmission rate.
Annex M Annex M is an extension of Annex A. The upstream is increased at
the expense of the downstream.
ANSI T1.413 ANSI T1.413 is an ADSL variant.
ARP The Address Resolution Protocol (ARP) supplies the associated
MAC addresses to IPv4 addresses. The information required is
shared between the network nodes, stored in the device's cache,
and deleted again after the ARP lifetime has expired. For IPv6 this
functionality is provided by the Neighbor Discovery Protocol (NDP).
ATM Asynchronous Transfer Mode (ATM) is a data transmission techno-
logy in which the data traffic is coded in small packets – called cells
or slots – with a fixed length and is transmitted via asynchronous
time multiplexing.
Authentication Check on the user's identify.
Authorisation Based on their identity (authentication), the user can access certain
services and resources.
bintec elmeg GmbH
Glossary
bintec RS Series 519
To Next Page
Loading...
