Glossary
10BASE-T
IEEE 802.3 specification for 10 Mbps Ethernet over two pairs of Category 3, 4, or 5 UTP cable.
IEEE 802.3u specification for 100 Mbps Ethernet over two pairs of Category 5 UTP cable.
1000BASE-LH
Long haul Gigabit Ethernet over two strands of 9/125 micron core fiber cable.
1000BASE-T
IEEE 802.3ab specification for Gigabit Ethernet over
Auto-Negotiation
Signalling method allowing each node to select its optimum operational mode (e.g., speed and duplex mode) based on the capabilities of the node to which it is connected.
Bandwidth
The difference between the highest and lowest frequencies available for network signals. Also synonymous with wire speed, the actual speed of the data transmission along the cable.
Collision
A condition in which packets transmitted over the cable interfere with each other. Their interference makes both signals unintelligible.
Collision Domain
Single CSMA/CD LAN segment.
CSMA/CD
CSMA/CD (Carrier Sense Multiple Access/Collision Detect) is the communication method employed by Ethernet, Fast Ethernet, and Gigabit Ethernet.
End Station
A workstation, server, or other device that does not forward traffic.
