A4.5 Glossary Of Terms - ABB SM3000 User Manual

A4.5 Glossary of Terms

The following terms have specific meanings within the Ethernet
environment:
10BaseT
A definition of the cable type and transmission rate of the
network. The '10' represents a transmission rate of 10Mbps
and the 'T' for unshielded twisted pair cable.
100BaseT
A higher speed version of 10BaseT with a transmission rate
of 100Mbps.
ARP
Address Resolution Protocol. Converts between IP
addresses and MAC (hardware) addresses on the network.
Default gateway
The IP address of the gateway (router, switch etc) that is
used to communicate with other networks.
FTP
File Transfer Protocol. A TCP/IP suite application that
provides an efficient and reliable means of transferring files
between a remote server and a client.
HTTP
HyperText Transfer Protocol. Used for the transfer of web
pages.
ICMP
Internet Control Message Protocol. An Internet protocol sent
in response to errors in TCP/IP messages. It is an error
reporting protocol between a host and a gateway.
IP address
Internet Protocol address. This is the unique address given
to each computer on a TCP/IP network (including the
Internet).
LAN
Local Area Network. A group of computers and associated
devices that share a common communications line or
wireless link and, typically, the resources of a single
processor or server within a small geographic area (for
example, within an office building). Usually, the server has
applications and data storage that are shared in common by
multiple computer users. A LAN may serve as few as two or
three users (e.g., in a home network) or as many as
thousands of users (e.g., in a large office).
MAC address
Media Access Control address, also called the hardware or
physical address. This is a unique address given to each
Ethernet interface that is used in an Ethernet packet to
identify the source and destination of the data being sent.
Open system
A system conforming to specifications and guidelines that
are 'open' to all. This allows any manufacturers' equipment
that comply with these
interchangeably on the standard network.
Router
Links a local network to a remote network. For example, your
company's network probably uses a router to connect to the
Internet. Can be used to connect a LAN to a LAN, a WAN to
a WAN, or a LAN to the Internet.
Subnet mask (or Sub-Network Mask)
A mask used to determine what subnet an IP address
belongs to (an IP address has two components, the network
address and the host address).
TCP/IP
Transmission Control Protocol/Internet Protocol. The
language all computers on the Internet, LANs and WANs use
to communicate with each other.
UTP
Unshielded Twisted Pair. The type of wire that is used in
10BaseT Ethernet communications.
WAN
Wide Area Network.
telecommunications network. The term distinguishes a
broader telecommunication structure from a local area
network (LAN). A WAN may be privately owned or rented,
but the term usually implies the inclusion of public (shared
user) networks.
APPENDIX 4 – ETHERNET
standards to be
A geographically dispersed
used
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