Glossary
ad hoc mode
An 802.11 networking framework in which devices or stations communicate directly with each other,
without the use of an AP.
ARP
Address Resolution Protocol is part of the TCP/IP suite used to dynamically associate a device's physical
address (MAC address) with its logical address (IP address). The system broadcasts an ARP request,
containing the IP address, and the device with that IP address sends back its MAC address so that traffic
can be transmitted.
ATM
Asynchronous Transmission Mode is 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 is 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
Chalet
Chalet is a web-based user interface for setting up and viewing information about a switch, removing
the need to enter common commands individually in the CLI.
CHAP
Challenge-Handshake Authentication Protocol is one of the two main authentication protocols used to
verify a user's name and password for PPP Internet connections. CHAP is more secure 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. The CLI provides an environment to issue commands to monitor and manage
switches and wireless appliances.
Data Center Connect
DCC, formerly known as DCM (Data Center Manager), is a data center fabric management and
automation tool that improves the efficiency of managing a large virtual and physical network. DCC
provides an integrated view of the server, storage, and networking operations, removing the need to
use multiple tools and management systems. DCC automates VM assignment, allocates appropriate
network resources, and applies individual policies to various data objects in the switching fabric
(reducing VM sprawl). Learn more about DCC at
http://www.extremenetworks.com/product/data-
DoS attack
Denial of Service attacks occur when a critical network or computing resource is overwhelmed so that
legitimate requests for service cannot succeed. In its simplest form, a DoS attack is indistinguishable
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