WO2000000899A3 - Flow control using output port buffer allocation - Google Patents

Flow control using output port buffer allocation Download PDF

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Publication number
WO2000000899A3
WO2000000899A3 PCT/US1999/014207 US9914207W WO0000899A3 WO 2000000899 A3 WO2000000899 A3 WO 2000000899A3 US 9914207 W US9914207 W US 9914207W WO 0000899 A3 WO0000899 A3 WO 0000899A3
Authority
WO
WIPO (PCT)
Prior art keywords
information network
information
input port
level
upstream source
Prior art date
Application number
PCT/US1999/014207
Other languages
French (fr)
Other versions
WO2000000899A2 (en
Inventor
Raphael Rom
Asad Khamisy
Moshe Sidi
Original Assignee
Sun Microsystems Inc
Raphael Rom
Asad Khamisy
Moshe Sidi
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 Sun Microsystems Inc, Raphael Rom, Asad Khamisy, Moshe Sidi filed Critical Sun Microsystems Inc
Priority to JP2000557403A priority Critical patent/JP2002519912A/en
Priority to EP99933565A priority patent/EP1092301A2/en
Priority to AU49600/99A priority patent/AU4960099A/en
Publication of WO2000000899A2 publication Critical patent/WO2000000899A2/en
Publication of WO2000000899A3 publication Critical patent/WO2000000899A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/90—Buffering arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/13—Flow control; Congestion control in a LAN segment, e.g. ring or bus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/26—Flow control; Congestion control using explicit feedback to the source, e.g. choke packets
    • H04L47/263—Rate modification at the source after receiving feedback
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/30—Flow control; Congestion control in combination with information about buffer occupancy at either end or at transit nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/30—Peripheral units, e.g. input or output ports
    • H04L49/3027—Output queuing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/35—Switches specially adapted for specific applications
    • H04L49/351—Switches specially adapted for specific applications for local area network [LAN], e.g. Ethernet switches
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/50—Overload detection or protection within a single switching element

Abstract

A system for implementing flow control in an information network such as a local area network (LAN) utilizing a Carrier Sense Multiple Access with Collision Detection (CSMA/CD) as specified by the IEEE standard 802.03. The information network transmits computer information such as computer data between various computer systems coupled to the information network. The information network includes information network switches capable of routing information packets received via its input ports to its output ports. The received packets are held in buffers of the output ports before being transmitted via the output ports. A portion of each output port buffer is allocated to each input port. The information network switch provides a control packet such as a PAUSE frame to an upstream source operably coupled to the input port in response to the level occupancy of the portion of the buffer allocated to the input port exceeding a first level. The PAUSE frame inhibits the upstream source from transmitting information packets to the input port. In one system, each upstream source has the capability of ignoring the control packet when the level of occupancy of an output buffer of the upstream source exceeds a threshold level.
PCT/US1999/014207 1998-06-30 1999-06-25 Flow control using output port buffer allocation WO2000000899A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2000557403A JP2002519912A (en) 1998-06-30 1999-06-25 Flow control using output port buffer allocation
EP99933565A EP1092301A2 (en) 1998-06-30 1999-06-25 Flow control using output port buffer allocation
AU49600/99A AU4960099A (en) 1998-06-30 1999-06-25 Flow control using output port buffer allocation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/107,881 US6252849B1 (en) 1998-06-30 1998-06-30 Flow control using output port buffer allocation
US09/107,881 1998-06-30

Publications (2)

Publication Number Publication Date
WO2000000899A2 WO2000000899A2 (en) 2000-01-06
WO2000000899A3 true WO2000000899A3 (en) 2000-05-04

Family

ID=22318963

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/014207 WO2000000899A2 (en) 1998-06-30 1999-06-25 Flow control using output port buffer allocation

Country Status (5)

Country Link
US (1) US6252849B1 (en)
EP (1) EP1092301A2 (en)
JP (1) JP2002519912A (en)
AU (1) AU4960099A (en)
WO (1) WO2000000899A2 (en)

Families Citing this family (87)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6735679B1 (en) * 1998-07-08 2004-05-11 Broadcom Corporation Apparatus and method for optimizing access to memory
GB2344030B (en) * 1998-11-17 2003-06-04 3Com Technologies Ltd Credit-based scheme for high performance communication between devices in a packet-based communication system
US6341315B1 (en) * 1999-02-26 2002-01-22 Crossroads Systems, Inc. Streaming method and system for fiber channel network devices
JP2000278316A (en) * 1999-03-23 2000-10-06 Toshiba Microelectronics Corp Data switching device
US6628608B1 (en) * 1999-03-26 2003-09-30 Cisco Technology, Inc. Method and apparatus of handling data that is sent to non-existent destinations
US6405258B1 (en) * 1999-05-05 2002-06-11 Advanced Micro Devices Inc. Method and apparatus for controlling the flow of data frames through a network switch on a port-by-port basis
US7016301B1 (en) * 1999-09-01 2006-03-21 Cisco Technology, Inc. Fair multiplexing scheme for multiple input port router
US6859435B1 (en) * 1999-10-13 2005-02-22 Lucent Technologies Inc. Prevention of deadlocks and livelocks in lossless, backpressured packet networks
GB2355374B (en) * 1999-10-15 2001-10-31 3Com Corp Network device including selective discard of packets
US6771601B1 (en) * 2000-01-31 2004-08-03 International Business Machines Corporation Network switch having source port queuing and methods, systems and computer program products for flow level congestion control suitable for use with a network switch having source port queuing
GB2365661A (en) * 2000-03-10 2002-02-20 British Telecomm Allocating switch requests within a packet switch
GB2360168B (en) * 2000-03-11 2003-07-16 3Com Corp Network switch including hysteresis in signalling fullness of transmit queues
US20020063932A1 (en) * 2000-05-30 2002-05-30 Brian Unitt Multiple access system for communications network
ATE285647T1 (en) * 2000-06-09 2005-01-15 Nokia Corp METHOD AND SYSTEM FOR SENDING AND/OR RECEIVING INFORMATION BETWEEN NETWORK ELEMENTS
US7072353B2 (en) * 2000-06-15 2006-07-04 At&T Corp. Flexible bandwidth allocation in high-capacity grooming switches
US7161938B1 (en) * 2000-07-26 2007-01-09 Infineon Technologies North America Corp. Network switch
US7352770B1 (en) * 2000-08-04 2008-04-01 Intellon Corporation Media access control protocol with priority and contention-free intervals
EP1182829B1 (en) * 2000-08-22 2007-10-03 Alcatel Lucent Communication method, related buffering element and line termination element
DE60041059D1 (en) * 2000-09-11 2009-01-22 Lucent Technologies Inc Method and device for controlling source-specific data flow
US7061868B1 (en) * 2000-10-25 2006-06-13 Switchcore, Ab Method for flow control in a switch and a switch controlled thereby
US6957270B1 (en) * 2001-01-16 2005-10-18 Advanced Micro Devices, Inc. Method and apparatus for performing flow control across multiple network devices
US20030016625A1 (en) * 2001-07-23 2003-01-23 Anees Narsinh Preclassifying traffic during periods of oversubscription
US6910149B2 (en) * 2001-09-24 2005-06-21 Intel Corporation Multi-device link aggregation
CN1185829C (en) * 2001-12-19 2005-01-19 华为技术有限公司 Method of controlling Ethernet data flow quantity on synchronous numerical system transmission net
US20030159143A1 (en) * 2002-02-21 2003-08-21 Peter Chan Systems and methods for generating a real-time video program guide through video access of multiple channels
US20030196211A1 (en) * 2002-04-10 2003-10-16 Peter Chan Systems, methods and apparatuses for simulated rapid tuning of digital video channels
US7423967B2 (en) * 2002-05-09 2008-09-09 Broadcom Corporation Fairness scheme method and apparatus for pause capable and pause incapable ports
US7236456B2 (en) * 2002-05-09 2007-06-26 Broadcom Corporation Using shadow Mcast/Bcast/Dlf counter and free pointer counter to balance unicast and Mcast/Bcast/Dlf frame ratio
US7286547B2 (en) * 2002-05-09 2007-10-23 Broadcom Corporation Dynamic adjust multicast drop threshold to provide fair handling between multicast and unicast frames
US8149703B2 (en) * 2002-06-26 2012-04-03 Qualcomm Atheros, Inc. Powerline network bridging congestion control
US7826466B2 (en) 2002-06-26 2010-11-02 Atheros Communications, Inc. Communication buffer scheme optimized for VoIP, QoS and data networking over a power line
US7120847B2 (en) * 2002-06-26 2006-10-10 Intellon Corporation Powerline network flood control restriction
US7554914B1 (en) * 2002-07-10 2009-06-30 Cisco Technology, Inc. System and method for adaptively balancing network traffic over router output ports
US6859437B2 (en) * 2002-11-05 2005-02-22 Nortel Networks Limited Method and system for extending the reach of a data communication channel using a flow control interception device
US7257080B2 (en) * 2002-12-09 2007-08-14 Lsi Corporation Dynamic traffic-based packet analysis for flow control
EP1639763A1 (en) * 2003-04-21 2006-03-29 Siemens Aktiengesellschaft Network traffic control system
US7688736B1 (en) 2003-05-05 2010-03-30 Marvell International Ltd Network switch with quality of service flow control
US7428463B2 (en) * 2003-08-07 2008-09-23 Broadcom Corporation System and method for adaptive flow control
US20050068975A1 (en) * 2003-09-30 2005-03-31 Pierre Colin Computer data transport system and method
US8090857B2 (en) * 2003-11-24 2012-01-03 Qualcomm Atheros, Inc. Medium access control layer that encapsulates data from a plurality of received data units into a plurality of independently transmittable blocks
US20050129008A1 (en) * 2003-12-16 2005-06-16 Intel Corporation Congestion management apparatus, systems, and methods
US7564791B2 (en) * 2003-12-29 2009-07-21 Intel Corporation Monitoring packet flows
US7660327B2 (en) * 2004-02-03 2010-02-09 Atheros Communications, Inc. Temporary priority promotion for network communications in which access to a shared medium depends on a priority level
US7453798B2 (en) * 2004-02-19 2008-11-18 Internationl Business Machines Corporation Active flow management with hysteresis
US7715425B2 (en) * 2004-02-26 2010-05-11 Atheros Communications, Inc. Channel adaptation synchronized to periodically varying channel
US7962401B2 (en) * 2004-08-25 2011-06-14 Cinnober Financial Technology Ab Message consolidation
US7680053B1 (en) 2004-10-29 2010-03-16 Marvell International Ltd. Inter-device flow control
US7330925B2 (en) * 2005-02-24 2008-02-12 International Business Machines Corporation Transaction flow control mechanism for a bus bridge
US7469312B2 (en) * 2005-02-24 2008-12-23 International Business Machines Corporation Computer system bus bridge
US7275125B2 (en) 2005-02-24 2007-09-25 International Business Machines Corporation Pipeline bit handling circuit and method for a bus bridge
US7275124B2 (en) * 2005-02-24 2007-09-25 International Business Machines Corporation Method and system for controlling forwarding or terminating of a request at a bus interface based on buffer availability
US7636370B2 (en) * 2005-03-03 2009-12-22 Intellon Corporation Reserving time periods for communication on power line networks
US8175190B2 (en) 2005-07-27 2012-05-08 Qualcomm Atheros, Inc. Managing spectra of modulated signals in a communication network
US7822059B2 (en) 2005-07-27 2010-10-26 Atheros Communications, Inc. Managing contention-free time allocations in a network
US8099756B2 (en) * 2005-11-10 2012-01-17 Versteeg William C Channel changes between services with differing bandwidth in a switched digital video system
US7742407B2 (en) * 2005-11-10 2010-06-22 Scientific-Atlanta, Llc Quality of service management in a switched digital video environment
US20070107024A1 (en) * 2005-11-10 2007-05-10 Scientific-Atlanta, Inc. Atomic channel changes in a switched digital video system
US20070106782A1 (en) * 2005-11-10 2007-05-10 Scientific-Atlanta, Inc. Bandwidth management in each network device in a switched digital video environment
US7873760B2 (en) * 2005-11-11 2011-01-18 Versteeg William C Expedited digital signal decoding
US7457892B2 (en) * 2006-06-05 2008-11-25 Freescale Semiconductor, Inc. Data communication flow control device and methods thereof
US7613848B2 (en) * 2006-06-13 2009-11-03 International Business Machines Corporation Dynamic stabilization for a stream processing system
US20080022320A1 (en) * 2006-06-30 2008-01-24 Scientific-Atlanta, Inc. Systems and Methods of Synchronizing Media Streams
US7899046B2 (en) * 2006-07-07 2011-03-01 Ver Steeg William C Determining strategy for multicast and/or unicast transmission to correct forward errors
US7877660B2 (en) * 2006-07-07 2011-01-25 Ver Steeg William C Transmitting additional forward error correction (FEC) upon request
US7774672B2 (en) 2006-07-07 2010-08-10 Scientific-Atlanta, Llc Requesting additional forward error correction
US7725797B2 (en) 2006-07-07 2010-05-25 Scientific-Atlanta, Llc Buffer for storing data and forward error correction (FEC)
US7870465B2 (en) * 2006-10-18 2011-01-11 Versteeg William C Reducing channel-change time
US20080244667A1 (en) * 2007-03-27 2008-10-02 Osborne Jason C Bandwidth sensitive switched digital video content delivery
US8370889B2 (en) * 2007-03-28 2013-02-05 Kanthimathi Gayatri Sukumar Switched digital video client reverse channel traffic reduction
KR101484798B1 (en) 2007-05-10 2015-01-28 퀄컴 인코포레이티드 Managing distributed access to a shared medium
US8832766B2 (en) * 2007-07-27 2014-09-09 William C. Versteeg Systems and methods of differentiated channel change behavior
US8776160B2 (en) 2007-07-27 2014-07-08 William C. Versteeg Systems and methods of differentiated requests for network access
US7657682B2 (en) * 2007-09-14 2010-02-02 Freescale Semiconductor, Inc. Bus interconnect with flow control
US7886073B2 (en) * 2008-08-08 2011-02-08 Cisco Technology, Inc. Systems and methods of reducing media stream delay
US8015310B2 (en) * 2008-08-08 2011-09-06 Cisco Technology, Inc. Systems and methods of adaptive playout of delayed media streams
US8341265B2 (en) * 2009-01-09 2012-12-25 Sonus Networks, Inc. Hybrid server overload control scheme for maximizing server throughput
US8239739B2 (en) * 2009-02-03 2012-08-07 Cisco Technology, Inc. Systems and methods of deferred error recovery
US8312188B1 (en) * 2009-12-24 2012-11-13 Marvell International Ltd. Systems and methods for dynamic buffer allocation
US8819161B1 (en) 2010-01-18 2014-08-26 Marvell International Ltd. Auto-syntonization and time-of-day synchronization for master-slave physical layer devices
JP5543664B2 (en) 2010-04-12 2014-07-09 クゥアルコム・インコーポレイテッド Delayed acknowledgment for low overhead communication in networks
US9015555B2 (en) 2011-11-18 2015-04-21 Cisco Technology, Inc. System and method for multicast error recovery using sampled feedback
US8891605B2 (en) 2013-03-13 2014-11-18 Qualcomm Incorporated Variable line cycle adaptation for powerline communications
US9548937B2 (en) * 2013-12-23 2017-01-17 Intel Corporation Backpressure techniques for multi-stream CAS
JP6402576B2 (en) 2014-10-15 2018-10-10 富士通株式会社 COMMUNICATION DEVICE, INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING SYSTEM, AND COMMUNICATION DEVICE CONTROL METHOD
CN107870874B (en) * 2016-09-23 2020-12-15 华为数字技术（成都）有限公司 Data write-in control method and storage device
CN110999225B (en) 2017-08-03 2021-10-22 日立安斯泰莫株式会社 Control device
US11502941B2 (en) * 2020-12-04 2022-11-15 T-Mobile Usa, Inc. Techniques for routing data in a network

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998011697A1 (en) * 1996-09-11 1998-03-19 Advanced Micro Devices, Inc. Arrangement for initiating and maintaining flow control in shared-medium, full-duplex, and switched networks

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5843648A (en) 1981-09-09 1983-03-14 Toshiba Corp Communication system
US5022046A (en) 1989-04-14 1991-06-04 The United States Of America As Represented By The Secretary Of The Air Force Narrowband/wideband packet data communication system
US5134615A (en) 1990-10-05 1992-07-28 Motorola, Inc. Frequency agile tdma communications system
US5491812A (en) 1992-09-28 1996-02-13 Conner Peripherals, Inc. System and method for ethernet to SCSI conversion
MX9306994A (en) * 1992-12-15 1994-06-30 Ericsson Telefon Ab L M FLOW CONTROL SYSTEM FOR PACKAGE SWITCHES.
US5452289A (en) 1993-01-08 1995-09-19 Multi-Tech Systems, Inc. Computer-based multifunction personal communications system
US5784358A (en) * 1994-03-09 1998-07-21 Oxford Brookes University Broadband switching network with automatic bandwidth allocation in response to data cell detection
US5475679A (en) * 1994-12-08 1995-12-12 Northern Telecom Limited Large capacity ATM switch
US5956342A (en) * 1995-07-19 1999-09-21 Fujitsu Network Communications, Inc. Priority arbitration for point-to-point and multipoint transmission
US5668988A (en) 1995-09-08 1997-09-16 International Business Machines Corporation Method for mining path traversal patterns in a web environment by converting an original log sequence into a set of traversal sub-sequences
US5666525A (en) 1995-09-21 1997-09-09 The Trustees Of Columbia University In The City Of New York System and method for performing an efficient join operation on large tables with a small main memory
US5642936A (en) 1996-01-29 1997-07-01 Oncormed Methods for identifying human hereditary disease patterns
US5859835A (en) * 1996-04-15 1999-01-12 The Regents Of The University Of California Traffic scheduling system and method for packet-switched networks
US5818839A (en) * 1997-06-27 1998-10-06 Newbridge Networks Corporation Timing reference for scheduling data traffic on multiple ports
US6067301A (en) * 1998-05-29 2000-05-23 Cabletron Systems, Inc. Method and apparatus for forwarding packets from a plurality of contending queues to an output

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998011697A1 (en) * 1996-09-11 1998-03-19 Advanced Micro Devices, Inc. Arrangement for initiating and maintaining flow control in shared-medium, full-duplex, and switched networks

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
MACLEOD B: "GIGABIT ETHERNET FULL-DUPLEX REPEATERS", ANNUAL REVIEW OF COMMUNICATIONS, vol. 50, 1 January 1997 (1997-01-01), pages 501 - 509, XP000720916, ISSN: 0886-229X *
REN J -F ET AL: "FLOW CONTROL AND CONGESTION AVOIDANCE IN SWITCHTED ETHERNET LANS", 1997 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, MONTREAL, JUNE 8 - 12, 1997, vol. 1, 8 June 1997 (1997-06-08), INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, pages 508 - 512, XP000740288, ISBN: 0-7803-3926-6 *
SCHROEDER M D ET AL: "AUTONET: A HIGH-SPEED, SELF-CONFIGURING LOCAL AREA NETWORK USING POINT-TO-POINT LINKS", IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS,US,IEEE INC. NEW YORK, vol. 9, no. 8, 1 October 1991 (1991-10-01), pages 1318 - 1335, XP000267583, ISSN: 0733-8716 *
WOODWORTH C B ET AL: "A FLEXIBLE BROADBAND PACKET SWITCH FOR A MULTIMEDIA INTEGRATED NETWORK", COMMUNICATIONS - RISING TO THE HEIGHTS, DENVER, JUNE 23 - 26, 1991, vol. 1, 23 June 1991 (1991-06-23), INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, pages 78 - 85, XP000269383, ISBN: 0-7803-0006-8 *

Also Published As

Publication number Publication date
EP1092301A2 (en) 2001-04-18
JP2002519912A (en) 2002-07-02
WO2000000899A2 (en) 2000-01-06
AU4960099A (en) 2000-01-17
US6252849B1 (en) 2001-06-26

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