|
| |
| | Packet switching - Wikipedia, the free encyclopedia |
 | | Packet switching is also called connectionless networking, because it is the opposite of circuit switched or connection-oriented networking, although technologies such as MPLS are beginning to blur the boundaries between the two. | | | In computer networking and telecommunications, packet switching is the now-dominant communications paradigm, in which packets (units of information carriage) are individually routed between nodes over data links which might be shared by many other nodes. | | | ATM is another hybrid technology, which uses cell relay instead of packet switching. |
|
http://en.wikipedia.org/wiki/Packet_switching
(1465 words)
|
|
| |
| | Packets and Packet-Switching Networks (Linktionary term) |
| | A packet-switched network is an interconnected set of networks that are joined by routers or switching routers. | | | A packet is a unit of data that is transmitted across a packet-switched network. | | | Packets have a header and a data area. |
|
http://www.linktionary.com/p/packet-switching.html
(1522 words)
|
|
| |
| | Communication processor for a packet-switched network - Patent 4979100 |
| | In packet-switched networks, packets in the form of blocks of data are transmitted from a source--such as a user terminal, computer, application program within a computer, or other data handling or data communication device--to a destination, which may be simply another data handling or data communication device of the same character. | | | Packet switching arose, in part, to fulfill the need for low cost data communications in networks developed to allow access to host computers. | | | The switches used in the Telenet public network and various of its private networks are members of the multiprocessor TP4000 (sometimes referred to in abbreviated fashion as TP4) packet switch family. |
|
http://www.freepatentsonline.com/4979100.html
(14824 words)
|
|
| |
| | 89163.011122&ELEMENT_SET=DECL |
| | A speech codec is dynamically-selected as a function of the QoS transmission characteristic of the packet- switched network. | | | For example, if a recent measure of packet delay is within a given range of an average packet delay statistic, the network is likely in a stable quiescent state and it is typically unnecessary to frequently determine the optimal codec. | | | Wireless telecommunications networks are an adjunct to the PSTN, and depend upon the circuit- switched network of the PSTN for communications with conventional wired telephony devices as well as with mobile devices. |
|
http://www.wipo.int/cgi-pct/guest/getbykey5?KEY=01/89163.011122&ELEMENT_SET=DECL
(3145 words)
|
|
| |
| | Network Core |
| | Since the amount of header information would be approximately the same for a message or a packet, the amount of header overhead per byte of data is higher for packet switching than for message switching. | | | But while the first packet is being moved from the first switch to the second switch, the second packet is simultaneously moved from the source to the first switch. | | | With packet switching, if there are 35 users, the probability that there are 10 or more simultaneously active users is less than 0.0017. |
|
http://www.tele.sunyit.edu/network_core.htm
(5015 words)
|
|
| |
| | X.25 and X.121 address, packet switched network, Link Access Protocol Balanced |
| | X.25 is used in a Packet Switched Network and in 1964 was designed by Paul Baran of the RAND Corporation for use with the Public Data Network (PDN) and unreliable analog telephone services. | | | During data transfer, the receiving device (which is the local switch) acknowledges the packet, not the ultimate destination, so that the sending device does not have to wait for the packet to travel the whole network before sending the next one. | | | Several network layer protocol addresses can be mapped to a single X.121 address as described in RFC 1356. |
|
http://www.rhyshaden.com/x25.htm
(1212 words)
|
|
| |
| | Privateline.com: Packet and circuit switching |
| | Packet Video is promising video clips at 60Kbs over conventional circuit switched cellular radio channels, indeed, they say they are platform independent, that is, their technology will work over whatever radio technology a carrier is using. | | | Replacing circuit switched switches with packet switches accross the country would be a monumental task, requiring billions of dollars over years and years. | | | Packet switching dominates data networks like the internet. |
|
http://www.privateline.com/Switching/packet.html
(2416 words)
|
|
| |
| | Energy Citations Database (ECD) - Energy and Energy-Related Bibliographic Citations |
| | The Lambda network is a single stage, packet-switched interprocessor communication network for a distributed memory, parallel processor computer. | | | Packet-switched intercommunication network for distributed memory, parallel processor computers | | | The network is based on fixed degree nodes and has O(log{sub 2n}) mean and maximum packet transfer distances where n is the number of processors. |
|
http://www.osti.gov/energycitations/product.biblio.jsp?osti_id=10187400
(169 words)
|
|
| |
| | sullivan1a.html |
| | This new idea of a packet switched network would be highly decentralized and would continue to function even when one or several "nodes" were suddenly rendered inoperable. | | | The internet is a multinational packet switched computer network. | | | 1962:Paul Baran of the RAND Corporation conceived and proposed a packet switched computer network. |
|
http://www.csun.edu/~hceng028/English/Fa97/sullivan1a.html
(1366 words)
|
|
| |
| | mainreport15.doc |
| | In this context, this core network architecture has come to be known as All-IP core network because the data as well as voice services will be provided over a packet switched core network using the IP protocol. | | | Network: The Network class implements the abstraction of Proxy CSCF and the Serving CSCF. | | | As soon as the user executable is run (it is equivalent to switching on a mobile station), the current domain of the user agent is identified and hence the GPRS attach and Proxy CSCF discovery is done. |
|
http://www.ece.uic.edu/~skayath/mainreport15.doc
(8160 words)
|
|
| |
| | Satisfying High Quality Requirements of Videoconferencing on a Packet-Switched Network |
| | Since devices and network access delays depend in a non-linear manner on their utilization level, in order to fairly distribute loss and delays among devices and protocol entities, it is mandatory to maintain each device utilization level under its critical threshold. | | | Already known results can be exploited in order to optimize the network performances; e.g. | | | The results obtained from this point of view by RTP are very encouraging, as it is possible to deduce from figure 6, where a 20-second sequence of the network end to end delay is compared with the corresponding video frame end to end delay. |
|
http://www.isoc.org/inet97/proceedings/F3/F3_2.HTM
(5132 words)
|
|
| |
| | Internet and Related - Open Site |
| | Historically, internets began with Paul Baran's study, which proposed the idea of a packet switched network. | | | The Internet is essentially an infrastructure that allow computers to link together through a sets of computer networks. | | | These networks evolved and expanded from United States to throughout the world, and these inter-connected networks all using the same TCP/IP protocol are considered to be what the Internet is. |
|
http://www.open-encyclopedia.info/index.php/Computers/Internet
(439 words)
|
|
| |
| | Method and system of providing multi-user access to a packet switched network - US Patent 6891825 |
| | For example, communication interface 519 may be a network interface card to attach to any packet switched local area network (LAN). | | | Thereafter, the backbone router forwards the packets to the packet switched network. | | | A computer-readable medium carrying one or more sequences of one or more instructions for providing multi-user access to a packet switched network, the one or more sequences of one or more instructions including instructions which, when executed by one or more processors, cause the one or more processors to perform the steps of: |
|
http://www.patentstorm.us/patents/6891825.html
(6259 words)
|
|
| |
| | NC Exchange - Articles X.25 Packet Switching Network |
| | X.25 was developed in the ITU Study Group VII based upon a number of emerging data network projects, such as the research project at the UK's National Physical Laboratory under the direction of Donald Davies who developed the concepts of packet switched networks. | | | The general concept of X.25 was to create a universal and global packet-switched network on what was then the bit-error prone analog phone system. | | | A number of systems were developed to directly use the underlying packet nature of X.25, back when it appeared that X.25 would become the single universal networking system. |
|
http://www.ncexchange.org/88__X25_Packet_Switching_Network.html
(814 words)
|
|
| |
| | Widely Used Packet Switched Data Network Protocols |
| | The most widely used network access protocol which has been defined to interface a DTE to a packet switched data network is X.25 (however X.25 can be used on private networks as well, it isn't limited to PDNs). | | | The link layer has no knowledge of the logical channel to which a packet may belong. | | | In fact, X.25 is a set of three protocols used to define the connection between the DTE and the data network. |
|
http://www2.rad.com/networks/1994/packet/packet02.html
(199 words)
|
|
| |
| | End-to-End Scheduling in Real-Time Packet-Switched Networks |
| | This paper presents the budgeted-weighted-round-robin (BWRR) algorithm for scheduling the transmission of hard-real-time messages in a packet-switched network. | | | The per switch delay and required buffer space provided by the BWRR algorithm are significantly less than those provided by previous methods. | | | In addition, with the BWRR algorithm, the necessary buffer space at each switch is predictable and can be fixed at system configuration time. |
|
http://csdl2.computer.org/persagen/DLAbsToc.jsp?resourcePath=/dl/proceedings/&toc=comp/proceedings/icnp/1996/7453/00/7453toc.xml&DOI=10.1109/ICNP.1996.564891
(224 words)
|
|
| |
| | Computers: Internet: History - Open Site |
| | Rand Paul Baran, of the RAND Corporation proposes the concept of a packet switched network. | | | This system allowed packets to be directed to a domain name, which would be translated by the server database into the corresponding IP number. | | | IBM was to provide the routers and Merit was to be the network manager. |
|
http://open-site.org/Computers/Internet/History
(804 words)
|
|
| |
| | Charging for Packet-Switched Network Communication |
| | Running experiments and simulations with this architecture is expected to generate a general understanding of requirements on future network technology. | | | Economic Analysis: A competitive market presents additional challenges to network providers and their consumers, especially when autonomous agents are used to negotiate prices. | | | charging issues have to be identified and considered when designing a future network architecture. |
|
http://www.kom.e-technik.tu-darmstadt.de/projects/charging.html
(680 words)
|
|
| |
| | What is packet switching? - A Word Definition From the Webopedia Computer Dictionary |
| | From Patton Electronics, this page offers a brief introduction to packet switching and its use in X.25 networks. | | | Provides a good overview of X.25 packet switching. | | | Packet switching is more efficient and robust for data that can withstand some delays in transmission, such as e-mail messages and Web pages. |
|
http://www.webopedia.com/TERM/p/packet_switching.html
(391 words)
|
|
| |
| | Method and apparatus for linking SNA terminals to an SNA host over a packet switched communications network (EP0330835B1) |
| | A data communications system for establishing a communications path from a System Network Architecture (SNA) host computer over a packet switched network to a System Network Architecture (SNA) terminal, comprising: | | | said packet switched network is the Defense Data Network (DDN), | | | The invention disclosed herein provides the basic operation capabilities of SNA data communications for host-to-remote terminal sessions across a packet switched network such as the Defense Data Network (DDN). |
|
http://www.delphion.com/details?pn=EP00330835B1
(435 words)
|
|
| |
| | Packet-Switched Networks |
| | Instead of using a dedicated, direct connection between the source and the destination to move information, like a telephone call uses, a packet switched network moves chunks of information (packets) from one point in the network to another, allowing the communications channel to be shared among a number of users. | | | The Internet has popularized the idea of the packet switched network. | | | Packets average 500 bytes in size, and are transmitted to and from one watt transceivers mounted on nearby lightpoles. |
|
http://www.decodesystems.com/mt/97aug
(1567 words)
|
|
| |
| | Business Wire: $55 Million Growth Investment Launches Packet-s... @ HighBeam Research |
| | Industry experts consider Raviant an important player in the growing fields of packet-switched networks and Internet infrastructure development. | | | Raviant Networks builds packet-switched, carrier-grade network solutions for telecommunications carriers, network element providers, and Fortune 500 companies seeking to increase revenues and market value in the new economy. | | | Raviant Networks, a premier architect of packet-switched, carrier-grade network solutions, today launches a new corporate identity and announces it has attracted $55 million in growth capital. |
|
http://highbeam.com/library/doc0.asp?docid=1G1:64774001&...
(683 words)
|
|
| |
| | Voice over packet, ip phones - Voice over Packet Sound Samples |
| | Voice-over-packet software runs on 12-DSP board: News from | | | Voice over Packet (VoP) is the general name for the technology used to transmit voice conversations over a data network. | | | Voice over Packet networks are subject to several types of delay: processing delay, Octasics Advanced Echo Processor in Voice over Packet Networks |
|
http://ip-phones.allinfosites.com/q/ip-phones-voice-over-packet.htm
(623 words)
|
|
| |
| | Sprint Migrating to Packet-Switched Network |
| | According to technology experts, packet-switched networks do not establish physical communication channels between communicating devices like circuit-switched networks do. | | | In November of 2001, for example, Sprint signed a $1.1 billion deal with Nortel Networks (Quote, Chart) for its switching equipment and installation services for the first phase of Sprint's packet-switched migration project. | | | The entire conversion of the network to packet-based technology could take more than twelve years. |
|
http://www.internetnews.com/wireless/article.php/2212321
(930 words)
|
|
| |
| | What is PSDN? - A Word Definition From the Webopedia Computer Dictionary |
| | Packet-switched networks do not establish physical communication channels between communicating devices like circuit-switched networks do. | | | Short for packet-switched data network, a data communications network that is based on the principles of packet switching, as opposed to circuit switching that is used in public telephone networks. | | | The packets then rely on network routers to read the address data and route the packets through the network to their destinations. |
|
http://www.webopedia.com/TERM/P/PSDN.html
(151 words)
|
|
| |
| | Packet Switched Data Network (Psdn) - Computer Books |
| | Packet Switched Data Network (Psdn) - Computer Books | | | · Optical Packet Access Protocols for Wdm Networks | | | · Next Generation Network Services: Technologies & Strategies |
|
http://www.centrasoft.com/c2/catP_4284.htm
(45 words)
|
|
| |
| | packet-switched network |
| | A packet-switched network may also be called connectionless because it contains many different possible connections and routes that a packet might take to reach its destination. | | | A network that consists of a series of interconnected circuits that route individual packets of data over one of several routes, offering flexibility and high reliability. | | | The term often refers to networks using the international standard X.25. |
|
http://www.coffeycountyks.org/Terms/2461HTML-2157.html
(63 words)
|
|
| |
| | Charging for packet-switched network communication - motivation and overview - |
| | Charging for packet-switched network communication - motivation and overview - | | | Packet-switched network technology is expected to form the integration layer for future multi-service networks. | | | The trend to integrate voice and data traffic can already be observed in the Internet and is expected to carry on until the full integration of all media types is achieved. |
|
http://www.kom.e-technik.tu-darmstadt.de/publications/abstracts/KSSW00-1.html
(298 words)
|
|
| |
| | PSDN - Packet-Switched Data Network |
| | Definitions have been compiled from popular search engines and multiple results provided for your review. | | | Network Security - Access Code For Tuesday, November 15, 2005 is rnbwmdrBkk. |
|
http://www.auditmypc.com/acronym/PSDN.asp
(98 words)
|
|
|
