CA2214838A1 - Broadband switching system - Google Patents

Broadband switching system

Info

Publication number
CA2214838A1
CA2214838A1 CA002214838A CA2214838A CA2214838A1 CA 2214838 A1 CA2214838 A1 CA 2214838A1 CA 002214838 A CA002214838 A CA 002214838A CA 2214838 A CA2214838 A CA 2214838A CA 2214838 A1 CA2214838 A1 CA 2214838A1
Authority
CA
Canada
Prior art keywords
bandwidth
cells
dbc
input port
data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002214838A
Other languages
French (fr)
Other versions
CA2214838C (en
Inventor
Avril Joy Smith
John Leonard Adams
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Telecommunications PLC
Original Assignee
Avril Joy Smith
John Leonard Adams
Oxford Brookes University
British Telecommunications Public Limited Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Avril Joy Smith, John Leonard Adams, Oxford Brookes University, British Telecommunications Public Limited Company filed Critical Avril Joy Smith
Publication of CA2214838A1 publication Critical patent/CA2214838A1/en
Application granted granted Critical
Publication of CA2214838C publication Critical patent/CA2214838C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L12/5602—Bandwidth control in ATM Networks, e.g. leaky bucket
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0478—Provisions for broadband connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5614—User Network Interface
    • H04L2012/5615—Network termination, e.g. NT1, NT2, PBX
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5629—Admission control
    • H04L2012/563—Signalling, e.g. protocols, reference model
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5629—Admission control
    • H04L2012/5631—Resource management and allocation
    • H04L2012/5632—Bandwidth allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5629—Admission control
    • H04L2012/5631—Resource management and allocation
    • H04L2012/5632—Bandwidth allocation
    • H04L2012/5635—Backpressure, e.g. for ABR
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5629—Admission control
    • H04L2012/5631—Resource management and allocation
    • H04L2012/5636—Monitoring or policing, e.g. compliance with allocated rate, corrective actions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5638—Services, e.g. multimedia, GOS, QOS
    • H04L2012/5639—Tariffs or charging
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5638—Services, e.g. multimedia, GOS, QOS
    • H04L2012/5646—Cell characteristics, e.g. loss, delay, jitter, sequence integrity
    • H04L2012/5651—Priority, marking, classes

Abstract

In a broadband switching system for the switching of asynchronously transferred cells of data, a dynamic bandwidth controller (DBC) controls the application of data cells to an input port of the system, the data cells being supplied by a number of transmitting end-systems. When an end-system begins transmitting data cells, the DBC
detects the presence of incoming cells and requests bandwidth from a connection admission control (CAC) forming part of the system. The switching system stores a table associating a number of signal sources connected to the ingress with respective predetermined transmission bandwidths and, preferably also, maximum delay times. When arrival of cells from one of the sources at the input port is detected, the DBC sends a request signal for the relevant predetermined bandwith to the CAC and delays transmission of the cells until at least the predetermined bandwidth is allocated. This delay is typically effected by sending a cell rate indicator signal back to the input port for placing the source in a halt mode. If no allocation of bandwidth has occurred before the respective maximum delay time, bandwidth is allocated by robbing bandwidth from other signal sources.
CA002214838A 1995-03-08 1996-03-08 Broadband switching system Expired - Fee Related CA2214838C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP95301522.9 1995-03-08
EP95301522 1995-03-08
PCT/GB1996/000534 WO1996027964A1 (en) 1995-03-08 1996-03-08 Broadband switching system

Publications (2)

Publication Number Publication Date
CA2214838A1 true CA2214838A1 (en) 1996-09-12
CA2214838C CA2214838C (en) 2008-02-26

Family

ID=8221117

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002214838A Expired - Fee Related CA2214838C (en) 1995-03-08 1996-03-08 Broadband switching system

Country Status (12)

Country Link
US (1) US6222823B1 (en)
EP (1) EP0813781B1 (en)
JP (1) JPH11501475A (en)
KR (1) KR19980702937A (en)
CN (1) CN1097912C (en)
AU (1) AU718665B2 (en)
CA (1) CA2214838C (en)
DE (1) DE69638195D1 (en)
MX (1) MX9706820A (en)
NO (1) NO974132L (en)
NZ (1) NZ302751A (en)
WO (1) WO1996027964A1 (en)

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US7079534B1 (en) * 1998-02-20 2006-07-18 Sprint Communications Company L.P. System and method for allocating bandwidth for a call
US6922409B1 (en) 1998-02-20 2005-07-26 Sprint Communications Company L.P. System and method for allocating bandwidth for a call
US6735176B1 (en) * 1998-03-26 2004-05-11 Nortel Networks Limited Dynamic bandwidth management and rerouting
US6377549B1 (en) * 1998-06-30 2002-04-23 U.S. Philips Corporation Call admission control system for wireless ATM networks
FI108203B (en) 1998-11-27 2001-11-30 Nokia Mobile Phones Ltd Method and apparatus for transmitting information in a packet radio service
GB2346501A (en) * 1998-12-08 2000-08-09 Nokia Telecommunications Oy Controlling bandwidth in an asynchronous transfer mode network
JP3556495B2 (en) * 1998-12-15 2004-08-18 株式会社東芝 Packet switch and packet switching method
US6819656B2 (en) * 1999-01-08 2004-11-16 Hewlett-Packard Development Company, L.P. Session based scheduling scheme for increasing server capacity
US7103068B1 (en) * 1999-05-04 2006-09-05 Sprint Communication Company L.P. System and method for configuring bandwidth transmission rates for call connections
WO2001001634A1 (en) * 1999-06-24 2001-01-04 Fujitsu Limited Dynamic virtual channel manager
US7016375B1 (en) * 1999-07-07 2006-03-21 Nortel Networks Limited Integrated connection admission control and bandwidth on demand for a access asynchronous network
DE19945152C1 (en) * 1999-09-21 2001-04-26 Siemens Ag Method and arrangement for coupling messages between a central control device and decentralized communication devices
US7283512B2 (en) * 2000-01-20 2007-10-16 Verizon Business Global Llc Intelligent network and method for providing voice telephony over ATM and point-to-multipoint connectivity
US6765871B1 (en) * 2000-11-29 2004-07-20 Akara Corporation Fiber channel flow control method and apparatus for interface to metro area transport link
AU2002310411A1 (en) * 2001-06-14 2003-01-02 Cariden Technologies Incorporated Methods and systems to generate and implement a changeover sequence to reconfigure a connection-oriented network
AU2003234738A1 (en) * 2002-04-15 2003-11-03 America Online, Inc. Dynamically managing and reconfiguring wireless mesh networks
US7392355B2 (en) * 2002-07-09 2008-06-24 International Business Machines Corporation Memory sharing mechanism based on priority elevation
WO2004072764A2 (en) * 2003-02-13 2004-08-26 Nokia Corporation Method for signaling client rate capacity in multimedia streaming
US7323342B2 (en) * 2003-04-04 2008-01-29 Exxonmobil Research And Engineering Company Method for improving oil desalting by forming unstable water-in-oil emulsions
US7660239B2 (en) * 2003-04-25 2010-02-09 Alcatel-Lucent Usa Inc. Network data re-routing
JP2005012260A (en) * 2003-06-16 2005-01-13 Matsushita Electric Ind Co Ltd Data transmission control method
US7359405B2 (en) * 2003-10-17 2008-04-15 Asix Electronics Corporation Ltd. Burst transfer mechanism of network packets having MAC frames over USB bus
CN101207505B (en) * 2006-12-18 2010-05-19 中兴通讯股份有限公司 Method for operating, maintaining , managing and looping for asynchronous transfer mode network cross-equipment
US7911948B2 (en) * 2007-10-17 2011-03-22 Viasat, Inc. Methods and systems for performing TCP throttle
WO2009151863A2 (en) * 2008-06-10 2009-12-17 Myers Wolin, Llc A network gateway for time-critical and mission-critical networks
JP5497529B2 (en) 2010-05-13 2014-05-21 日本電気株式会社 Network relay apparatus and QoS control method
US9036474B2 (en) * 2010-06-08 2015-05-19 Alcatel Lucent Communication available transport network bandwidth to L2 ethernet nodes
US9608696B2 (en) 2013-10-11 2017-03-28 Qualcomm Incorporated Dynamic transmit power and signal shaping

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Also Published As

Publication number Publication date
US6222823B1 (en) 2001-04-24
EP0813781A1 (en) 1997-12-29
AU718665B2 (en) 2000-04-20
AU4887996A (en) 1996-09-23
JPH11501475A (en) 1999-02-02
MX9706820A (en) 1998-10-31
NO974132L (en) 1997-11-07
EP0813781B1 (en) 2010-06-09
WO1996027964A1 (en) 1996-09-12
NO974132D0 (en) 1997-09-08
NZ302751A (en) 1999-05-28
KR19980702937A (en) 1998-09-05
CN1183189A (en) 1998-05-27
CN1097912C (en) 2003-01-01
DE69638195D1 (en) 2010-07-22
CA2214838C (en) 2008-02-26

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