SM3000
Multipoint Videographic Recorder
Appendix E – Ethernet
IM/SM3000–EN Rev. L
187
E.3.5 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 (for
example, in a home network) or as many as thousands of
users (for example, 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 standards to be used 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. A geographically dispersed
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.
