3Com Hub 1000 SX See symmetric flow control, Detection, access method, devices. See also repeater

2GLOSSARY

bidirectional	See symmetric flow control.
flow control
CSMA/CD	Carrier Sense Multiple Access/Collision Detection. Channel access
	method used by Ethernet and IEEE 802.3 in which devices transmit only
	after finding the data channel clear for some period. When two devices
	transmit simultaneously, a collision occurs and the colliding devices
	delay their retransmissions for a random length of time.
Ethernet	A local area network standard defining a physical medium and its
	method of placing data, or packet signaling, on a cable. Access to the
	cable is based on CSMA/CD (Carrier Sense Multiple Access/Collision
	Detection).
Fast Ethernet	A 100 Mbps technology based on the Ethernet CSMA/CD network
	access method.
fiber-optic cable	Cable consisting of a glass center, cladding, a buffer layer, strength
	members, and a cable sheath. The glass center supports the
	transmission of light signals.
flow control	A method for ensuring that a transmitting entity does not overwhelm a
	receiving entity with data. See also asymmetric flow control, incoming
	flow control, outgoing flow control, pause frame, symmetric flow
	control.
forced link	A method by which devices link with fixed and matching signaling
	capabilities. See also auto-negotiation.
full-duplex	The ability of a device or line to transmit data simultaneously in both
	directions. See also half-duplex.
Gigabit Ethernet	A 1000 Mbps network technology that retains support for
	10/100 Mbps Ethernet CSMA/CD networks.
half-duplex	Data transmission that can occur in two directions over a single line,
	but in only one direction at a time. See also full-duplex.
hub	A device used to provide connectivity between network devices. Hubs
	perform the basic repeater functions of restoring signal amplitude and
	timing, detecting collisions, and broadcasting signals to network
	devices. See also repeater.