Digitus DN-80233, User Manual

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network administration because the software tracks IP addresses rather than requiring an administrator to
manage the task. A new computer can be added to a network without the hassle of manually assigning it
a unique IP address.
E
EEPROM.
See “Electronically Erasable Programmable Read Only Memory” on page 296.
Electronically Erasable Programmable Read Only Memory.
EEPROM is also known as Flash memory.
This is re-programmable memory.
F
Fast STP.
A high-performance Spanning Tree Protocol. See “STP” on page 301 for more information.
FIFO.
First In First Out.
Flash Memory.
See “EEPROM” on page 296.
Flow Control.
The process of adjusting the flow of data from one network device to another to ensure
that the receiving device can handle all of the incoming data. This is particularly important where the
sending device is capable of sending data much faster than the receiving device can receive it. There are
many flow control mechanisms. One of the most common flow control protocols for asynchronous
communication is called xonxoff. In this case, the receiving device sends a an “xoff” message to the
sending device when its buffer is full. The sending device then stops sending data. When the receiving
device is ready to receive more data, it sends an “xon” signal.
Forwarding.
When a frame is received on an input port on a switch, the address is checked against the
lookup table. If the lookup table has recorded the destination address, the frame is automatically
forwarded on an output port.
Frame Check Sequence.
The extra characters added to a frame for error detection and correction. FCS
is used in X.25, HDLC, Frame Relay, and other data link layer protocols.
G
GARP.
See “Generic Attribute Registration Protocol.” on page 297.
GARP Information Propagation.
GIP is the propagation of information between GARP participants for
the same application in a bridge is carried out by a GIP component.
GARP Multicast Registration Protocol.
GMRP provides a mechanism that allows Bridges and end
stations to dynamically register (and subsequently, de-register) Group membership information with the
MAC Bridges attached to the same LAN segment, and for that information to be disseminated across all
Bridges in the Bridged LAN that support Extended Filtering Services. The operation of GMRP relies upon
the services provided by the GARP.
GARP VLAN Registration Protocol.
GVRP allows workstations to request admission to a particular
VLAN for multicast purposes.
GE.
See “Gigabit Ethernet” on page 297.
General Purpose Chip-select Machine.
GPCM provides interfacing for simpler, lower-performance
memory resources and memory mapped-devices. The GPCM does not support bursting and is used
primarily for boot-loading.
Generic Attribute Registration Protocol.
GARP provides a generic attribute dissemination capability
that is used by participants in GARP Applications (called GARP Participants) to register and de-register
attribute values with other GARP Participants within a Bridged LAN. The definition of the attribute types,
the values that they can carry, and the semantics that are associated with those values when registered