In a
packet switched
In telecommunications, packet switching is a method of grouping data into short messages in fixed format, i.e. '' packets,'' that are transmitted over a digital network. Packets consist of a header and a payload. Data in the header is used b ...
network
Network, networking and networked may refer to:
Science and technology
* Network theory, the study of graphs as a representation of relations between discrete objects
* Network science, an academic field that studies complex networks
Mathematics
...
, burst switching is a capability in which each
network switch
A network switch (also called switching hub, bridging hub, Ethernet switch, and, by the IEEE, MAC bridge) is networking hardware that connects devices on a computer network by using packet switching to receive and forward data to the destinat ...
extracts
routing
Routing is the process of selecting a path for traffic in a Network theory, network or between or across multiple networks. Broadly, routing is performed in many types of networks, including circuit-switched networks, such as the public switched ...
instructions from an incoming
packet
Packet may refer to:
* A small container or pouch
** Packet (container), a small single use container
** Cigarette packet
** Sugar packet
* Network packet, a formatted unit of data carried by a packet-mode computer network
* Packet radio, a form ...
header to establish and maintain the appropriate switch
connection
Connection may refer to:
Mathematics
*Connection (algebraic framework)
*Connection (mathematics), a way of specifying a derivative of a geometrical object along a vector field on a manifold
* Connection (affine bundle)
*Connection (composite bun ...
for the duration of the packet, following which the connection is automatically released.
In concept, burst switching is similar to
connectionless mode transmission
Connectionless communication, often referred to as CL-mode communication,Information Processing Systems - Open Systems Interconnection, "Transport Service Definition - Addendum 1: Connectionless-mode Transmission", International Organization for ...
, but differs in that burst switching implies an intent to establish the switch connection in
near real time
Real-time computing (RTC) is the computer science term for hardware and software systems subject to a "real-time constraint", for example from event to system response. Real-time programs must guarantee response within specified time constrai ...
, so that only minimum buffering is required at the
node
In general, a node is a localized swelling (a "knot") or a point of intersection (a vertex).
Node may refer to:
In mathematics
* Vertex (graph theory), a vertex in a mathematical graph
*Vertex (geometry), a point where two or more curves, lines ...
switch.
A variant of burst switching used in
optical networks is
optical burst switching Optical burst switching (OBS) is an optical telecommunication, optical networking technique that allows dynamic sub-wavelength switching of data. OBS is viewed as a compromise between the yet unfeasible full optical packet switching (OPS) and the mo ...
.
Applications
Examples of technology using burst switching include:
*
EtherLoop
Etherloop is a hybrid technology combining aspects of Ethernet with other technologies to achieve a result not possible with either technology alone.
EtherLoop was originally developed in the 1990s to allow high-speed data communication access to ...
, used after the late-1990s to facilitate
telephone company
A telecommunications company is a kind of electronic communications service provider, more precisely a telecommunications service provider (TSP), that provides telecommunications services such as telephony and data communications access. Many t ...
offerings to compete with the high-speed local data access that was then beginning to be offered by
cable TV
Cable television is a system of delivering television broadcast programming, programming to consumers via radio frequency (RF) signals transmitted through coaxial cables, or in more recent systems, light pulses through fibre-optic cables. This ...
providers as an internet service offering.
* Intra-vehicle communication:
Tesla Cybertruck
The Tesla Cybertruck is a battery-electric full-size pickup truck manufactured by Tesla, Inc. since 2023. It was first unveiled as a prototype in November 2019, featuring a distinctive angular design composed of flat, unpainted stainless stee ...
in 2023 began using a gigabit Ethernet loop with burst switching for
near real-time
Real-time computing (RTC) is the computer science term for hardware and software systems subject to a "real-time constraint", for example from event to system response. Real-time programs must guarantee response within specified time constrai ...
, redundant control of all motor vehicle subsystems, including
steer-by-wire
Steer-by-wire, in the context of the automotive industry, is a technology or system that allows steering some or all of a vehicle's wheels without a steering column that turns the direction of those wheels mechanically. It is different from electr ...
, motor controls, all vehicle controllers, plus
vehicle audio
Vehicle audio is equipment installed in a car or other vehicle to provide in-car entertainment and information for the occupants. Such systems are popularly known as car stereos. Until the 1950s, it consisted of a simple AM radio. Additions sin ...
with
active road-noise cancellation.
References
*Source: from
Federal Standard 1037C
Federal Standard 1037C, titled Telecommunications: Glossary of Telecommunication Terms, is a United States Federal Standard issued by the General Services Administration pursuant to the Federal Property and Administrative Services Act of 1949, ...
.
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Computer networks engineering