Manual

57
GigaX2008EX L2 Managed Switch User Manual
8 Glossary
10BASE-T
A designation for the type of wiring used by Ethernet
networks with a data rate of 10 Mbps. Also known as
Category 3 (CAT 3) wiring. See also data rate, Ethernet.
100BASE-T
A designation for the type of wiring used by Ethernet
networks with a data rate of 100 Mbps. Also known as
Category 5 (CAT 5) wiring. See also data rate, Ethernet.
1000BASE-T
A designation for the type of wiring used by Ethernet
networks with a data rate of 1000 Mbps.
binary
The “base two” system of numbers, that uses only two digits,
0 and 1, to represent all numbers. In binary, the number
1 is written as 1, 2 as 10, 3 as 11, 4 as 100, etc. Although
expressed as decimal numbers for convenience, IP addresses
in actual use are binary numbers; e.g., the IP address
209.191.4.240 is 11010001.10111111.00000100.11110000 in
binary. See also bit, IP address, network mask.
bit
Short for “binary digit,” a bit is a number that can have two
values, 0 or 1. See also binary.
bps
bits per second
CoS
Class of Service. Defined in 802.1Q, the value range is from
0 to 7.
broadcast
To send data to all computers on a network.
Ethernet
The most commonly installed computer network technology,
usually using twisted pair wiring. Ethernet data rates are
10 Mbps and 100 Mbps. See also 10BASE-T, 100BASE-T,
twisted pair.
FTP
File Transfer Protocol
A program used to transfer files between computers
connected to the Internet. Common uses include uploading
new or updated files to a web server, and downloading files
from a web server.
host
A device (usually a computer) connected to a network.
ICMP
Internet Control Message Protocol
An Internet protocol used to report errors and other network-
related information. The ping command makes use of ICMP.