Honeywell HC900 Benutzerhandbuch
Components and Architecture - Networking Basics Reference
30
HC900 Hybrid Controller Installation and User Guide
Revision 5
9/03
Name/Acronym Name/Definition
Comments
IP Address
Internet Protocol Address
Guaranteed unique address, assigned by the
Internet Corporation for Assigned Names and
Numbers (ICANN). IP address includes four
“octets” (eight bits, translating to integers from 0 to
255), separated by periods.
ICANN assigns three classes of addresses:
Class A – first (leftmost) octet is assigned; the
three rightmost octets are assignable to the owner
of the Class A address.
Class B – first and second (leftmost) octets are
assigned, the remaining two are assignable by the
owner of the Class B address
Class C – the three leftmost octets are assigned;
only the rightmost octet is user-assignable. The
number 0 is reserved for router connections to
another network, 127 for loopback testing, and 255
for broadcast to all computers on the network.
Internet Corporation for Assigned Names and
Numbers (ICANN). IP address includes four
“octets” (eight bits, translating to integers from 0 to
255), separated by periods.
ICANN assigns three classes of addresses:
Class A – first (leftmost) octet is assigned; the
three rightmost octets are assignable to the owner
of the Class A address.
Class B – first and second (leftmost) octets are
assigned, the remaining two are assignable by the
owner of the Class B address
Class C – the three leftmost octets are assigned;
only the rightmost octet is user-assignable. The
number 0 is reserved for router connections to
another network, 127 for loopback testing, and 255
for broadcast to all computers on the network.
ISDN
Integrated Services Digital
Network
Network
Digital service provided by telephone companies.
Jabber
Corrupted and/or incessant
data transmitted onto a
network.
data transmitted onto a
network.
Caused by a failed Network Interface Card, or by a
computer device that transmits packets whose
length violates network rules.
computer device that transmits packets whose
length violates network rules.
Kbps
Kilobits per second
Transmission speed.
Kermit
A program used widely for
file transfer and terminal
emulation.
file transfer and terminal
emulation.
LAN
Local Area Network
Networked devices, logically isolated from other
networks and devices.
networks and devices.
Latency
Delay in transmission
caused by a Switch or
Bridge in forwarding a
message.
caused by a Switch or
Bridge in forwarding a
message.
Layer
One of the seven layers in
the OSI model.
the OSI model.
LLC
Logical Link Control layer
Layer 2 of the OSI Model
Load balancing
Transferring tasks from
heavily-loaded resources to
less-loaded resources.
heavily-loaded resources to
less-loaded resources.
Logical Link
A temporary connection
between source and
destination devices.
between source and
destination devices.
MAC
Media Access Control
Ethernet Interface (transceiver, software to
physical media)
physical media)
MAC Address
MAC coded ID
Unique code “burned" into firmware by the device
manufacturer.
manufacturer.
MAU
Medium Attachment Unit
(Also see AUI, MDI, MAC)
MDI
Medium Dependent
Interface
Interface
Physical connector at cable end (e.g., RJ-45 plug
on Ethernet CAT 5 cable.) (Also see AUI, MAU)
on Ethernet CAT 5 cable.) (Also see AUI, MAU)