Synchronous Optical NETwork
<networking> (SONET) A broadband networking standard based on
point-to-point optical fibre networks. SONET will provide a high-bandwidth
"pipe" to support ATM-based services.
The SONET standard will establish a digital hierarchical network with a
consistent worldwide transport scheme. SONET has been designed to take advantage
of fibre, in contrast to the plain old telephone system which was designed for
copper wires.
SONET carries circuit-switched data in frames at speeds in multiples of 51.84
megabits per second (Mbps) up to 48 * 51.84 Mbps = 2.488 gigabits per second.
Since SONET uses multiple channels to transmit data, each SONET frame can be
considered to be a two-dimensional table of bytes that is 9 rows high and 90
columns deep. For every OC-n level, SONET can transmit n number of frames at a
given time. Groups of frames are called superframes.
SONET is the American version of SDH.
[Wulf Losee; Corporate Computing 8.92; STACKS; LAN Magazine 10.93].
(1994-11-30)
Nearby terms:
Synchronous Graphics Random Access Memory «
Synchronous idle « synchronous key encryption «
Synchronous Optical NETwork » syncronous »
synflood » synonym ring
|
