Foundry Networks IRONPOINT 250 - Manual (Page 60)

Foundry IronPoint 250 Installation Guide
Glossary-2 © 2007 Foundry Networks, Inc. August 2007
Dynamic Host Configuration Protocol (DHCP)
Provides a framework for passing configuration information to hosts on a TCP/IP network. DHCP is
based on the Bootstrap Protocol (BOOTP), adding the capability of automatic allocation of reusable
network addresses and additional configuration options.
Extended Service Set (ESS)
More than one wireless cell can be configured with the same Service Set Identifier to allow mobile
users can roam between different cells with the Extended Service Set.
Ethernet
A network communication system developed and standardized by DEC, Intel, and Xerox, using
baseband transmission, CSMA/CD access, logical bus topology, and coaxial cable. The successor
IEEE 802.3 standard provides for integration into the OSI model and extends the physical layer and
media with repeaters and implementations that operate on fiber, thin coax and twisted-pair cable.
Fast Ethernet
A 100 Mbps network communication system based on Ethernet and the CSMA/CD access method.
IEEE
Institute of Electrical and Electronic Engineers.
IEEE 802.11a
A wireless standard that supports high-speed communications in the 5 GHz band using Orthogonal
Frequency Division Multiplexing (OFDM). The standard supports data rates of 6, 12, 24, and 54
Mbps.
IEEE 802.11b
A wireless standard that supports wireless communications in the 2.4 GHz band using Direct
Sequence Spread Spectrum (DSSS). The standard provides for data rates of 1, 2, 5.5, and 11 Mbps.
IEEE 802.11g
A wireless standard that supports wireless communications in the 2.4 GHz band using supports
high-speed communications in the 5 GHz band using Orthogonal Frequency Division Multiplexing
(OFDM). The standard provides for data rates of 6, 9, 11, 12, 18, 24, 36, 48, 54 Mbps. IEEE 802.11g
is also backward compatible with IEEE 802.11b.
IEEE 802.1x
Port Authentication controls access to the switch ports by requiring users to first enter a user ID and
password for authentication.
IEEE 802.3
Defines carrier sense multiple access with collision detection (CSMA/CD) access method and
physical layer specifications.
IEEE 802.3u
Defines CSMA/CD access method and physical layer specifications for 100BASE-TX and
100BASE-FX Fast Ethernet.
Infrastructure
An integrated wireless and wired LAN is called an infrastructure configuration.