ters, consisting of seven data bits plus one parity bit.
The ASIC looks in the filter table of MAC addresses
and determines which port the destination hardware
address of a received hardware address is destined for.
The frame will be allowed to traverse only that one
segment. If the hardware address is unknown, the
frame is forwarded out all ports.
dent of computer structures and depicting methods.
Described by ISO International Standard 8824.
sessions, as well as sequence requests.
from one node in the network to another, supporting
the automatic resolution of spanning trees in SRB net-
works. AST is based on the IEEE 802.1 standard.
cies and phase relationships. Asynchronous transmis-
sions generally enclose individual characters in control
bits (called start and stop bits) that show the beginning
and end of each character.
defined in RFC 1378.
normal TDM in that the time slots are assigned when
necessary rather than preassigned to certain transmit-
ters.
routers to route multiple, independent DECnet net-
works and to establish a user-designated address
translation for chosen nodes between networks.
cells, for transmitting cells in multiple service systems,
such as voice, video, or data. Transit delays are
reduced because the fixed-length cells permit process-
ing to occur in the hardware. ATM is designed to max-
imize the benefits of high-speed transmission media,
such as SONET, E3, and T3.
resolution services.
servers, workstations, ATM-to-LAN switches, and
ATM routers.
Systems, and NET/ADAPTIVE in 1991 to develop and
promote standards-based implementation agreements
for ATM technology. The ATM Forum broadens offi-
cial standards developed by ANSI and ITU-T and cre-
ates implementation agreements before official
standards are published.
standard 53-byte ATM cells, the ATM layer receives
48-byte segments from the AAL and attaches a 5-byte
header to each. These cells are then sent to the Physical
layer for transmission across the physical medium.
VCI translation.
least two ATM service users, such as ATMM pro-
cesses. These communications can be uni- or bidirec-
tional, using one or two VCCs, respectively.
between two sockets, where one requests the other to
perform a given task and to report the results. ATP
fastens the request and response together, assuring a
loss-free exchange of request-response pairs.