Glossary-15
Flash memory
Flash memory allows for quick updating of MICOM software.
See
also
network code download.
FlashPak cartridge
A cartridge containing the operating firmware for MICOM Integration
products. The cartridge contains Flash memory, which allows software to be
downloaded. Contrast with FEATUREPAK cartridge.
flow control
The procedure for controlling the transfer of data between two points in a
data network, such as between a terminal and a multiplexer, to prevent loss
of data when the receiving device's buffer reaches its capacity.
force connect(ed)
A dedicated connection between any two ports of the same type. Contrast
with switching.
forward explicit congestion notification
See
FECN.
fox message
A test message
(THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG. 1234567890)
that contains all the letters of the alphabet and all the numerals. This is
produced in the fox message generator within the unit.
frame check sequence
See
FCS.
frame relay
An alternative wide area networking (WAN) connection to leased lines,
providing multiple permanent virtual circuits (PVCs) or data link connection
(DLCs) within the same physical access line.
framerelaycapable interface device
A communications device that performs encapsulation. Framerelaycapable
routers and bridges are examples of devices used to interface the customer's
equipment to a frame relay network.
See also
encapsulation.
FRAD, frame relay access device
The equipment used to access the frame relay network.