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Appendix D: Glossary
WebView Switches
Flow Control
- Enables lower speed devices to communicate with higher speed devices. This is implemented by
the higher speed device refraining from sending packets.
FTP
(
F
ile
T
ransfer
P
rotocol) - A protocol used to transfer files over a TCP/IP network.
Full Duplex
- The ability of a networking device to receive and transmit data simultaneously.
GARP
(
G
eneral
A
ttributes
R
egistration
P
rotocol) - Registers client stations into a multicast domain.
Gateway
- A device that interconnects networks with different, incompatible communications protocols.
GBIC
(
G
iga
B
it
I
nterface
C
onverter) - A hardware module used to attach network devices to fiber-based
transmission systems. GBIC converts the serial electrical signals to serial optical signals and vice versa.
GVRP
(
G
ARP
V
LAN
R
egistration
P
rotocol) - Registers client stations into a VLANs.
Half Duplex
- Data transmission that can occur in two directions over a single line, but only one direction at a
time.
HTTP
(
H
yper
T
ext
T
ransport
P
rotocol) - The communications protocol used to connect to servers on the World
Wide Web.
HTTPS
(
H
yper
T
ext
T
ransport
P
rotocol
S
ecure) - An extension to the standard HTTP protocol that provides
confidentiality by encrypting the traffic from the website. By default this protocol uses TCP port 443.
ICMP
(I
nternet
C
ontrol
M
essage
P
rotocol) - Allows the gateway or destination host to communicate with the
source host. For example, to report a processing error.
IGMP
(
I
nternet
G
roup
M
anagement
P
rotocol) - Allows hosts to notify their local switch or router that they want to
receive transmissions assigned to a specific multicast group.
IP
(
I
nternet
P
rotocol) - A protocol used to send data over a network.
IP Address
- The address used to identify a computer or device on a network.
IPCONFIG
- A Windows 2000 and XP utility that displays the IP address for a particular networking device.
IPSec
(
I
nternet
P
rotocol
Sec
urity) - A VPN protocol used to implement secure exchange of packets at the IP layer.
ISP
(
I
nternet
S
ervice
P
rovider) - A company that provides access to the Internet.
Jumbo Frames
- Enable transporting identical data in fewer frames. Jumbo Frames reduce overhead, lower
processing time, and ensure fewer interrupts.
LAG
(
L
ink
A
ggregated
G
roup) - Aggregates ports or VLANs into a single virtual port or VLAN.