Filter
Top Products
176 Glossary
F
FFT
Fast Forward Table.
Provides information about
forwarding routes. If a packet arrives to a device with
a known route, the packet is forwarded via a route
listed in the FFT. If there is not a known route, the
CPU forwards the packet and updates the FFT.
FIFO
First In First Out.
A queuing process where the first
packet in the queue is the first packet out of the
packet.
Flapping
Flapping occurs when an interfaces state is
constantly changing. For example, an STP port
constantly changes from listening to learning to
forwarding. This may cause traffic loss.
Flow Control
Enables lower speed devices to communicate with
higher speed devices, that is, that the higher speed
device refrains from sending packets.
Fragment
Ethernet packets smaller than 576 bits.
Frame
Packets containing the header and trailer
information required by the physical medium.
G
GARP
General Attributes Registration Protocol.
Registers
client stations into a Multicast domain.
Gigabit Ethernet
Gigabit Ethernet transmits at 1000 Mbps, and is
compatible with existing 10/100 Mbps Ethernet
standards.
GVRP
GARP VLAN Registration Protocol. Registers client
stations into a VLANs.
H
HOL
Head of Line
. Packets are queued. Packets at the
head of the queue are forwarded before packets at
the end of the line.
Host
A computer that acts as a source of information or
services to other computers.
HTTP
HyperText Transport Protocol.
Transmits HTML
documents between servers and clients on the
internet.
I
IC
Integrated Circuit
. Integrated Circuits are small
electronic devices composed from semiconductor
material.
ICMP
Internet Control Message Protocol.
Allows gateway
or destination host to communicate with a source
host, for example, to report a processing error.