3Com WX4400 3CRWX440095A, WXR100 3CRWXR10095A, WX1200 3CRWX120695A manual Chap, Cpc, Crc

GLOSSARY 677

CHAP	Challenge Handshake Authentication Protocol. An authentication
	protocol that defines a three-way handshake to authenticate a user
	(client). CHAP uses the MD5 hash algorithm to generate a response to
	a challenge that can be checked by the authenticator. For wireless
	connections, CHAP is not secure and must be protected by the
	cryptography in such authentication methods as the Protected
	Extensible Authentication Protocol (PEAP) and Tunneled Transport Layer
	Security (TTLS).
client	The requesting program or device in a client-server relationship. In a
	wireless LAN (WLAN), the client (or supplicant) requests access to the
	services provided by the authenticator. See also supplicant.
co-channel	See CCI.
interference
collision domain	A single half-duplex IEEE 802.3 Carrier Sense Multiple Access with
	Collision Detection (CSMA-CD) network. A collision occurs when two
	or more Layer 2 devices in the network transmit at the same time.
	Ethernet segments separated by a Layer 2 switch are within different
	collision domains.
comma-separated	See CSV file.
values file
communications	See plenum-rated cable.
plenum cable
coverage area	In 3Com Wireless Switch Manager (3WXM), the smallest unit of floor
	space within which to plan access point coverage for a wireless LAN
	(WLAN). The number of access points required for a coverage area
	depends on the type of IEEE 802.11 transmission used, and the area’s
	physical features and user density.
CPC	Communications plenum cable. See plenum-rated cable.
CRC	Cyclic redundancy check. A primitive message integrity check.
crypto	See cryptography.