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Topic: Asynchronous Transfer Mode


  
 Asynchronous Transfer Mode - definition of Asynchronous Transfer Mode in Encyclopedia
An ATM cell consists of a 5 byte header and a 48 byte payload.
ATM broke all packets, data and voice streams up into 48 byte chunks, adding a 5 byte routing header to each one so that they could be re-assembled later; it multiplexed these 53 byte cells instead of packets.
At the time ATM was designed, 155 Mbits/s SDH (135 Mbits/s payload) was considered a fast optical network link, and many PDH links in the digital network were considerably slower, ranging from 1.544 Mbits/s to 45 Mbits/s in the USA (2 Mbits/s to 34 Mbits/s in Europe).
http://encyclopedia.laborlawtalk.com/Asynchronous_Transfer_Mode   (2554 words)

  
 Free Essay History of Asynchronous Transfer Mode (ATM)
The ATM cell was chosen to be 53 bytes (or octets) long of which 48 bytes would be user data and the remaining 5 bytes would be a header field.
Asynchronus Transfer Mode (ATM) in computer data networking is defined and the history of the concept is discussed.
[Ref. 2] ATM Cell Configuration The ATM cell was chosen to be 53 bytes (or octets) long of which 48 bytes would be user data and the remaining 5 bytes would be a header field.
http://www.echeat.com/essay.php?t=26457   (17128 words)

  
 Asynchronous Transfer Mode Security
The ATM cell is composed of 53 bytes, of which 48 bytes are the payload and 5 bytes make up the header.
For obvious reasons, the server's encryption device (which may have a parallel implementation of the algorithm) must be interoperable with the client's (which may be a serial implementation of the same algorithm).
With this service, the 48-byte payload of the ATM cell is encrypted; the 5-byte header is left intact [10].
http://www.comsoc.org/ni/private/1997/may/Peyravian.html   (5644 words)

  
 Asynchronous Transfer Mode (ATM) Switching
Because ATM is asynchronous, time slots are available on demand with information identifying the source of the transmission contained in the header of each ATM cell.
ATM networks are fundamentally connection-oriented, which means that a virtual channel (VC) must be set up across the ATM network prior to any data transfer.
The edge devices that generate the ATM traffic are called multiprotocol clients (MPC) and may be an ATM-attached workstation, or a router.
http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/atm.htm   (7582 words)

  
 Asynchronous Transfer Mode (ATM) > Asynchronous Transfer Mode (ATM)
The ATM cell is 53 octets in length and is divided into two portions: the header, which is 5 octets, and the payload, which is 48 octets.
The UBR service class is intended for delay-tolerant or non–real-time applications that are not sensitive to delay and delay variation, such as traditional computer communications.
Not wanting to impose more than 10 percent overhead for the header information, 5 octets was agreed upon for the header length.
http://www.informit.com/articles/article.asp?p=21316   (2456 words)

  
 ATM (Asynchronous Transfer Mode) (Linktionary term)
In the early 1990s, ATM was widely considered the next-generation networking technology that would extend all the way to the desktop.
Still, ATM is a viable technology for backbones, even in Gigabit Ethernet environments.
ATM creates a virtual circuit (dedicated path) between source and destination across its switching fabric.
http://www.linktionary.com/a/atm.html   (786 words)

  
 Asynchronous Transfer Mode (ATM)
ATM is a complex network technology, developed by both   telephone companies ( Telecom) and computer communication companies ( Datacom).
The AFI value associated with DCC is "39" (encoded in Binary Coded Decimal).
shows the ATM end-point address my computer would get when it is connected to the ATM network of the Department.
http://margo.student.utwente.nl/simon/finished/thesis/thesis2/node26.html   (2972 words)

  
 An ATM Tutorial
The ATM cell consists of a 5-octet header and a 48-octet information field after the header.
ATM can provide a solution to the bottleneck problem by replacing the backbone architecture with an ATM switch.
The information contained in the header is dependent on whether the cell is carrying information from the user network to the first ATM public exchange (User-Network Interface - UNI), or between ATM exchanges in the trunk network (Network-Node Interface - NNI).
http://usuario.cicese.mx/~aarmenta/frames/redes/atm/tutorial1/tute.html   (3409 words)

  
 ATM, Asynchronous Transfer Mode
It is a frame consisting of a 5 byte header and 48 bytes of payload.
The ILMI specification designates the switch side of the ATM link as the 'network side' and the host/router side of the ATM link as the ' user side.' The Service Registry MIB, which is outlined in Section 3, is implmented on the network side and is queried from the user side.
[RFC 2098] Toshiba's Router Architecture Extensions for ATM : Overview.
http://www.networksorcery.com/enp/protocol/atm.htm   (659 words)

  
 Asynchronous Transfer Mode
Describes the ATM header files, generic data structures, macros, and return codes that ATM modules use.
Describes how ATM connections are initiated and terminated, and includes some code fragments that show how these tasks are implemented in software.
Describes the ATM device driver interface, its tasks and routines, and associated data structures.
http://www.pdc.kth.se/doc/osf/osf40b/HTML/AA-QDP5C-TE_html/atmprog1.html   (807 words)

  
 Asynchronous Transfer Mode
The ATM layer which is responsible for flow control, header generation and extraction, virtual circuit and path management and multiplexing.
It is this ability to do switching in hardware that makes the data rates of ATM possible whilst at the same time requiring that the packet size remain small.
A virtual path is a bundle of virtual circuits associated with a physical path between tow nodes.
http://www.sju.edu/~jhodgson/netw/atm.html   (293 words)

  
 Asynchronous Transfer Mode - Computerworld
One reason ATM works well with disparate kinds of data is that it's connection-oriented.
With ATM, those delays are eliminated, because the switch is "always looking for 53-byte chunks," Orans says.
Frame relay and other connection-oriented protocols transfer data in packets of varying lengths, which makes for variable delays between packet transfers, Orans explains.
http://www.computerworld.com/networkingtopics/networking/lanwan/story/0,10801,40508,00.html   (1100 words)

  
 ATM (Asynchronous Transfer Mode)
The first five bytes of an ATM cell, known as the header, contain an address that tells where the cell wants to go in the network.
The advantage of this approach is that switched virtual circuits occupy switching capacity only while they are set up, increasing switch efficiency and so payback on investment.
The header also specifies the priority of the "payload" information carried in the remaining 48 bytes.
http://www.networkworld.com/details/450.html   (1013 words)

  
 Define ATM - a Whatis.com definition - see also: asynchronous transfer mode
Because ATM is designed to be easily implemented by hardware (rather than software), faster processing and switch speeds are possible.
SearchNetworking.com offers a list of white papers about ATM and other network technologies.
ATM (asynchronous transfer mode) is a dedicated-connection switching technology that organizes digital data into 53-byte cell units and transmits them over a physical medium using digital signal technology.
http://searchnetworking.techtarget.com/sDefinition/0,,sid7_gci213790,00.html   (217 words)

  
 What is ATM? - A Word Definition From the Webopedia Computer Dictionary
Provides information on cell relay and ATM technologies.
You are in the: Small Business Computing Channel
Recurrent Technologies: Cisco Switches - Online seller of refurbished Sun Microsystems, Cisco, Juniper, and F5 networks hardware offers Cisco switches.
http://www.webopedia.com/TERM/A/ATM.html   (696 words)

  
 Internetworking Asynchronous Transfer Mode With The Consultative Committee For Space Data Systems Advanced Orbiting ...
ATM has been designed with the intended channel being optical fibre.
Thus the integration of the space segment with the ground network poses various implementation issues.
Internetworking Asynchronous Transfer Mode With The Consultative Committee For Space Data Systems Advanced Orbiting Systems Protocols
http://www.eeng.dcu.ie/~murphyj/publ/ccsds-atm/ccsds-atm.html   (173 words)

  
 Asynchronous Transfer Mode ( ATM )
A typical small switch can connect between 16 and 32 computers.
Physically, a host interface board plugs into a computer's bus.
The Basic component of an ATM network is a special purpose electronic switch designed to transfer data at extremely high speed.
http://www.ou.edu/class/telecomm/lect08_atm.htm   (233 words)

  
 Asynchronous Transfer Mode (ATM)
(we assume that they are already configured on the ATM switches, you need to consult the manual for the switch on how to do this).
While this is simple to configure it tends to become impractical for a larger number of machines.
The example supposes that we have four machines in the network, each connected to the ATM network with an ATM adapter card.
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/network-atm.html   (398 words)

  
 Asynchronous Transfer Mode ATM
 Only ATM can handle QoS in such a flexible and comprehensive way.
The Asynchronous Transfer Mode ATM is a multiplexing technique that makes optimal and flexible use of the bandwidth of modern transmission links.
Before SDH (synchronous digital hierarchy) was standardized and introduced, PDH (plesiochronous digital hierarchy), which is still being used, was state of the art.
http://www.rohde-schwarz.com/atm.html   (302 words)

  
 IBM Redbooks RS/6000 and Asynchronous Transfer Mode
back-to-back and to ATM networks using ATM technology.
This redbook was written for everyone who needs to implement ATM
This redbook addresses Asynchronous Transfer Mode (ATM) technology
http://publib-b.boulder.ibm.com/Redbooks.nsf/RedbookAbstracts/sg244796.html   (86 words)

  
 ATM Chips and NICs - The ATM ChipWeb
No guarantee is given and no responsibility is taken for the information provided.
The WWW directory of ATM Chips and NICs
ATM Chips and NICs - The ATM ChipWeb
http://www.chipweb.de/atm   (41 words)

  
 Asynchronous Transfer Mode
WD12.4 Fault Recovery Routing Strategies for ATM Networks David Tipper, Wei-Ping Wang, Deep Medhi, Robert Cotter
WD12.2 Location & Network Design Issues in ATM Networks Steven Chamberland, Odile Marcotte, Brunilde Sanso
Questions on membership, subscriptions and the like should go to INFORMS Customer Service.
http://www.informs.org/Conf/WA96/TALKS/WD12.html   (100 words)

  
 Asynchronous Transfer Mode (ATM)
As requirements for enhanced communication are addressed, broadband technology will enable the transmission of such complex information.
Asynchronous Transfer Mode (ATM) is a switch standard for broadband services that employs highly sophisticated equipment with universal specifications.
http://www.iscan.net/atm.htm   (90 words)

  
 IEC: Asynchronous Transfer Mode (ATM) Fundamentals
ATM technology will allow core network stability while allowing service interfaces and other equipment to evolve rapidly.
ATM, which was once envisioned as the technology of future public networks, is now a reality, with service providers around the world introducing and rolling out ATM and ATM–based services.
ATM is a technology that will enable carriers to capitalize on a number of revenue opportunities through multiple ATM classes of services; high-speed local-area network (LAN) interconnection; voice, video, and future multimedia applications in business markets in the short term; and in community and residential markets in the longer term.
http://www.iec.org/online/tutorials/atm_fund   (312 words)

  
 Asynchronous Transfer Mode (ATM) - at Web Hosting Ratings
Data is partitioned into cells (53 bytes each) and passed along a virtual circuit.
A set of network protocols designed for multimedia transmission.
ATM allows for building very high speed networks.
http://www.webhostingratings.com/glossary/Asynchronous-Transfe.html   (40 words)

  
 Amazon.com: Asynchronous Transfer Mode Networks: Performance Issues, Second Edition: Books: Raif O. Onvural
Provides a convenient, comprehensive, and timely analysis of the critical performance issues that need to be resolved before the full promise of ATM can be fulfilled.
Publisher: learn how customers can search inside this book.
Amazon.com: Asynchronous Transfer Mode Networks: Performance Issues, Second Edition: Books: Raif O. Onvural
http://www.amazon.com/exec/obidos/tg/detail/-/0890068046?v=glance   (453 words)

  
 IEC: Asynchronous Transfer Mode (ATM) Fundamentals
MPEG2 coding can result in one of the following two modes:
While circuit-based videoconferencing streams (including motion JPEG running at rates around 10 Mbps) can be handled by standard circuit emulation using AAL–1, the ATM Forum has specified the use of VBR–RT VCs using AAL–5 for MPEG2 on ATM for video-on-demand applications, as this approach makes better use of networking resources.
MPEG2 assumes a constant-delay model across the network, thus allowing the decoder to exactly follow the original encoder source clock.
http://www.iec.org/online/tutorials/atm_fund/topic08.html   (271 words)

  
 ATM (Asynchronous Transfer Mode) - a CompInfo Directory
ATM (Asynchronous Transfer Mode) - Organizations and User Groups
ATM (Asynchronous Transfer Mode) - Key Solutions Providers
The ATM Forum is an international non-profit organization formed with the objective of accelerating the use of ATM (Asynchronous Transfer Mode) products and services through a rapid convergence of interoperability specifications.
http://www.compinfo-center.com/netw/atm.htm   (466 words)

  
 Cisco ATM Tutorial - Alliance Datacom Frame Relay, ATM & IP Resource Center
Cisco ATM Tutorial - Alliance Datacom Frame Relay, ATM & IP Resource Center
http://www.alliancedatacom.com/cisco-atm-tutorial.htm   (13 words)

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