Honeywell HC900 User Manual
Components and Architecture - Networking Basics Reference
Revision 5
HC900 Hybrid Controller Installation and User Guide
29
9/03
Name/Acronym Name/Definition
Comments
Domain Name
A text name, appended to
the Host name.
the Host name.
Identifies a node as a member of a domain.
DS1, DS3
Dedicated leased telephone
lines
lines
DS1 (T-1) carries 1.544 Mbps, DS3 (T-3) carries
44.736 Mbps
44.736 Mbps
DTE
Data Terminal Equipment
Computers, Controllers, and other devices that
communicate via networking devices.
communicate via networking devices.
Ethernet
IEEE networking standard
802.3, which defines
configuration rules for an
Ethernet network
802.3, which defines
configuration rules for an
Ethernet network
10 or 100 Mbps, Baseband network that uses
various media (thick coax, thin coax, twisted pair,
or fiber optic cable).
Example: 10BaseT is 10 Mbps Twisted Pair.
various media (thick coax, thin coax, twisted pair,
or fiber optic cable).
Example: 10BaseT is 10 Mbps Twisted Pair.
FTP
File Transfer Protocol
Use for send and receive files between an FTP
client and an FTP Server.
client and an FTP Server.
Filtering
Selection process used by a
Switch or a Bridge to
forward a message or block
its passage.
Switch or a Bridge to
forward a message or block
its passage.
The Switch or Bridge reads the content of a packet
(such as destination address) to determine whether
the message should be blocked or forwarded.
(such as destination address) to determine whether
the message should be blocked or forwarded.
Firewall
Inter-network security
system
system
Application software that runs in a computer, or a
dedicated firewall device that includes a dedicated
computer and software. In either case, it is placed
in the data path between networks.
dedicated firewall device that includes a dedicated
computer and software. In either case, it is placed
in the data path between networks.
Firmware
Semi-permanent storage
medium.
medium.
In some cases, the content of firmware is fixed, and
cannot be altered. In other firmware (e.g., Flash),
the content can be re-written.
cannot be altered. In other firmware (e.g., Flash),
the content can be re-written.
Forwarding
Bridge or Switch, passing a
message from one network
to another, based on packet
filtering.
message from one network
to another, based on packet
filtering.
See “Filtering”.
Framing
Dividing messages into
groups of bits, each group
having specific significance.
groups of bits, each group
having specific significance.
Framing techniques vary with protocols used.
Typically, message data is preceded by an
identifying “header” and is followed by an error-
check sequence.
Typically, message data is preceded by an
identifying “header” and is followed by an error-
check sequence.
Host Name
The name assigned to
identify a computer
connected to a network.
identify a computer
connected to a network.
The name is resident in each Host computer.
Host Table
A list of TCP/IP Host
Names/IP Addresses for a
network
Names/IP Addresses for a
network
hostid Host
Identifier The portion of the IP address (right part) that
uniquely identifies a Host device on a network.
Hub
See “Port Multiplier”.
HTTP
Hypertext Transfer Protocol
Application-Layer protocol that controls
transactions between the web client and the web
server.
transactions between the web client and the web
server.
Internet
A system of networks
(local, regional, national,
and international) linked by
TCP/IP.
(local, regional, national,
and international) linked by
TCP/IP.
Access to the Internet is governed by a world-wide
set of rules. IP (Internet Protocol) addresses are
assigned by Internet Corporation for Assigned
Names and Numbers(ICANN)
set of rules. IP (Internet Protocol) addresses are
assigned by Internet Corporation for Assigned
Names and Numbers(ICANN)