Ethernet OEM Module
Crestron
eServer™
Packet
A packet is a chunk of information sent over a network. Each packet contains the
address of origin, the address of its destination, and information about how to reunite
with other related packets. This process allows packets from many different locations
to co-mingle on the same lines and be sorted and directed to different routes by
special machines along the way.
Protocol
A protocol is the standard or set of rules that two devices use to communicate with
each other. Also known as a communications protocol or network protocol, this is a
set of standards that assures different network products or programs can work
together. Any product that uses a given protocol should work with any other product
using the same protocol.
Router
A router is a piece of hardware or software that connects two or more networks. A
router functions as a sorter and interpreter as it looks at addresses and passes bits of
information to their proper destinations. Software routers are sometimes referred to
as gateways.
Server
A server is a computer that handles requests for data, e-mail, file transfers, and other
network services from other computers (i.e., clients).
SIMPL+ Module
A file containing a program written in Crestron's SIMPL+ control system
programming language.
Standard TCP/IP Sockets
Describes a standard way for programmers to work with TCP/IP.
Subnet Mask
A pattern of bits in IP address format (e.g., 255.255.255.0) which, when bitwise
"and"ed with an IP address, produces a network address. If an outgoing packet's
network address has the same network address as the source of the packet, it is sent
on the local network wire, to be received by a device on that local network.
Otherwise, it is sent to the gateway address to be routed to a device existing on
another network.
Telnet
Telnet is a software program that allows a user to log into other remote computers on
the Internet (assuming access is permitted). Once logged into the remote system, the
user can download files, engage in conferencing, and perform the same commands as
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Glossary of Terms
Operations Guide - DOC. 8148
