WO2004047368A1 - Procede de commande de flux d'un dispositif de transmission man - Google Patents
Procede de commande de flux d'un dispositif de transmission man Download PDFInfo
- Publication number
- WO2004047368A1 WO2004047368A1 PCT/CN2003/000982 CN0300982W WO2004047368A1 WO 2004047368 A1 WO2004047368 A1 WO 2004047368A1 CN 0300982 W CN0300982 W CN 0300982W WO 2004047368 A1 WO2004047368 A1 WO 2004047368A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- flow control
- board
- channel
- frame
- control frame
- Prior art date
Links
Classifications
-
- 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
- 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
- H04L47/266—Stopping or restarting the source, e.g. X-on or X-off
-
- 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
- H04L47/29—Flow control; Congestion control using a combination of thresholds
-
- 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
- H04L49/35—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
- 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
- H04L49/00—Packet switching elements
- H04L49/50—Overload detection or protection within a single switching element
Definitions
- the present invention relates to the field of data transmission, and in particular, to a flow control method for a metropolitan area network transmission device. Background of the invention
- SDH synchronous digital hierarchy
- the flow control mostly uses the Ethernet flow control mechanism based on the data transmission port defined in the IEEE standard.
- the data transfer port buffer data exceeds the specified high threshold, the data transfer port sends a standard 802.3x flow control frame to the peer device.
- the peer device decides whether to end the flow control state based on the flow control time carried by the flow control frame. . After the flow control time is over, data can be sent again.
- the 802.3x standard flow control is an IEEE standard protocol. The protocol is mature and easy to implement. However, because the standard flow control is based on the flow control time carried by the flow control frame to determine whether to end the flow control state, the real-time performance is poor. On the other hand, the 802.3x standard flow control is based on the Ethernet data transmission port flow control. Flow control for transmission boards and mapping channels in Ethernet metro transmission equipment cannot be achieved. With the increase in the number of boards and logical sub-channels in metropolitan area network transmission equipment, the probability of congestion on boards or patrol sub-channels also increases.
- the invention provides a method for controlling the flow of a metropolitan area network transmission device, based on the traditional Ethernet data transmission port flow control, expanding the implementation of board-level and logical subchannel-level flow control, so that the Ethernet metropolitan area transmission device The flow control is more perfect.
- a flow control method for a metropolitan area network transmission device is characterized by including the following steps: judging whether the data transmission port of the transmission device on the receiving end is congested, and if so, the packet forwarding module feeds back the Ethernet flow to the transmitting device on the transmitting end. Control the frame, after the transmitting device on the sending end receives the Ethernet flow control frame, suspend sending the message; determine whether the congestion of the data transmission port is over, if so, the transmitting device on the sending end continues to send the message, otherwise the receiving end message forwarding module Continue to feed back Ethernet flow control frames to the transmitting device to form the flow control of the data transmission port;
- the board mapping module feeds back the board-level flow control frame to the message forwarding module. After receiving the board-level flow control frame, the message forwarding module suspends the board to the board. Send a message; determine whether the board congestion of the data transmission port is over, if so, the message forwarding module continues to send messages to the board, otherwise the board mapping module continues to feed back the board-level flow control frame to the message forwarding module, Form single board flow control;
- the logical sub-channel mapping module forwards the logical sub-channel-level flow control frame to the message forwarding module via the board mapping module, and the message forwarding module receives the logical sub-channel.
- the message forwarding module receives the logical sub-channel.
- pause sending packets to the logical sub-channel determine whether the logical sub-channel congestion of the board is over; if so, the message forwarding module continues to send packets to the logical sub-channel, otherwise it is mapped by the logical sub-channel
- the module continues to feed logical sub-channel level flow control frames to the message forwarding module to form logical sub-channel flow control.
- determining whether the data transmission port of the transmission device at the receiving end is congested includes: determining whether the number of packets in the data transmission port buffer exceeds a predetermined high threshold; the determination Whether the data transmission port congestion ends includes: the message forwarding module determines whether the number of packets in the data transmission port buffer is below a predetermined lower threshold, or the transmitting device determines the flow control time in the Ethernet flow control frame Whether to end; the Ethernet flow control frame is generated after the message forwarding module receives the backpressure signal generated by the data transmission port buffer.
- determining whether the board of the data transmission port is congested includes: judging whether the number of packets in the board buffer exceeds a predetermined high threshold value; determining whether the board congestion of the data transmission port is ended includes: judging a board Whether the number of packets in the board buffer is lower than a predetermined low threshold; the board-level flow control frame is generated after the board mapping module receives the backpressure signal generated by the board buffer.
- the judging whether the logical subchannel of the board is congested includes: judging whether the number of packets of the logical subchannel buffer exceeds a predetermined high threshold; the judging whether the logical subchannel congestion of the board is ended includes: judging Whether the number of packets in the logical sub-channel buffer is lower than a predetermined lower threshold.
- the logical sub-channel mapping module forwards the logical sub-channel level flow control frame to the message forwarding module via the board mapping module.
- the logical sub-channel mapping module generates a back pressure signal, and the logical sub-channel mapping module receives the back pressure signal and generates the back pressure signal.
- the logical sub-channel mapping module forwards the logical sub-channel-level flow control frame to the message forwarding module via the board mapping module, and may further include: the logical sub-channel buffer generates a back pressure signal, and the logical sub-channel mapping module receives the back pressure.
- the signal generates a logical sub-channel level flow control frame, and the board mapping module combines the logical sub-channel level flow control frame and the plate flow control frame into a board level flow control frame, and feeds back the combined plate flow control frame to the message forwarding. Module.
- the board-level flow control frame or logical sub-channel-level flow control frame is a normal data message carrying flow control information or an empty frame carrying flow control information.
- the board-level flow control frame or the sub-channel-level flow control frame is set to carry all the frames. Flow control information for the board.
- the board-level flow control frame is set to include at least a frame header, a board number, a logical subchannel number, a flow control information flag, a payload, and a frame tail.
- the flow control information includes at least 15-bit board congestion.
- the information flag and the 1-bit frame type flag, the board number is 4 bits, and the logical subchannel number is 8 bits.
- the logical sub-channel-level flow control frame is set to include at least a frame header, a board number, a logical sub-channel number, flow control information, a payload, and a frame tail.
- the flow control information includes at least a 14-bit board.
- the board number is 4 bits
- the logical subchannel number is 8 bits.
- the present invention utilizes a combination of a hardware backpressure mechanism and a custom flow control frame.
- a normal data message to carry flow control information or constructing an empty frame carrying flow control information
- traffic is performed on the board and logical subchannels.
- Control and expansion realize the flow control strategy of metropolitan area network transmission equipment, make the metropolitan area network flow control strategy more perfect, meet the complex Ethernet metropolitan area transmission equipment flow control business requirements, and have simple hardware circuits and software traffic
- Many advantages, such as flexible control and easy upgrade can greatly reduce costs compared with simple hardware implementation, improve the maintainability of the device, and have better real-time congestion control.
- FIG. 1 is a schematic diagram of an overall technical solution of the present invention
- FIG. 2 shows the 802.3x flow control frame format
- Figure 3 is a schematic diagram of the sending status of a flow control operation
- Figure 4 is a schematic diagram of plate flow control
- Figure 5a is the message format received by the data transmission port
- Figure 5b is the message format that the message forwarding module performs look-up table forwarding
- Figure 5c is the plate flow control frame format
- FIG. 6 is a flow control schematic diagram of a logical sub-channel
- Figure 7 shows the format of a logical sub-channel flow control frame.
- the present invention proposes a flow control method based on "data transmission port-level flow control + board-level flow control + channel-level flow control".
- FIG. 1 for a schematic diagram of the overall technical solution of the present invention.
- the thick solid line indicates the transmission of the data stream
- the thin solid line indicates the transmission of the flow control frame.
- a single data transmission port is connected to multiple boards, and a single board has multiple logical subchannels.
- a message from a FE / GE (electrical / optical) data transmission port is forwarded to a logical subchannel through the following process: First, the message forwarding module 40 buffers the received message in The data transmission port buffer area 41 adds the board number and channel number information to the message according to the table lookup result, and then forwards the data message to the board mapping module 42. Then, the board mapping module 42 will The message forwarding module 40 buffers the message in the board buffer area 43, and then forwards the message to the corresponding transmission board to complete the message forwarding based on the board number. Finally, the logical subchannel mapping module 44 The message is buffered in the logical subchannel buffer area 45, and then the message is forwarded to the corresponding logical subchannel to complete the message forwarding based on the logical subchannel number.
- the message forwarding module 40 detects the backpressure signal, generates a standard 802.3x flow control frame and sends it to the current data transmission port, and the data transmission port sends the flow control frame to the
- the peer device After receiving the 802.3x flow control frame, the peer device temporarily suspends sending data packets to the local device, and when the local device receives the flow control frame from the peer device, it also suspends sending data packets to the peer device. Perform flow control to prevent Congestion occurs, forming flow control based on data transmission ports.
- the above 802.3x flow control frame format includes a MAC destination address, a MAC source address, a type field, an Opcode, a flow control time, and a message length.
- the MAC destination address is fixed at 0180c2000001, and the MAC source address is Don't care, it is set to 000000000000 when sending, the type field is fixed to 0x0001, and the flow control time can be set by the user.
- FIG. 3 is a schematic diagram of a sending state of a flow control operation.
- the peer device receives the 802.3x flow control frame
- the peer device changes from the non-flow control state to the flow control state, and determines whether the flow control state should be ended based on the flow control time in the 802.3x flow control frame.
- the time is over, a data packet is sent. If the flow control time is not over, a control frame is sent.
- the operation of receiving the flow control frame does not affect the sending of the current data message, so as to ensure that no data message is lost during the flow control process.
- the board mapping module 42 After the message is forwarded to the board mapping module 42, if the current number of messages in the board buffer 43 exceeds a predetermined threshold, the board buffer generates a hardware backpressure signal XON / OFF, and the board mapping module 42 generates a board level
- the flow control frame is fed back to the message forwarding module 40.
- the message forwarding module 40 receives the board-level flow control frame and stops sending a message to the transmission board.
- the board buffer 43 When the message in the board buffer 43 is reported, When the text is lower than the specified lower limit value, or when the flow control time in the Ethernet flow control frame ends, the board buffer 43 generates an XON / OFF signal with a back pressure signal value of 0, and the signal is sent to the unit.
- the board mapping module 42 stops performing flow control to form a board-level flow control.
- the message forwarding module sends 802.3x flow control frames to the peer device, forming a data transmission port flow control, thereby achieving "data transmission port-level flow control + board” Level flow control.
- the logical subchannel buffer 45 When the message is forwarded to the logical subchannel mapping module 44, if the current number of messages in the logical subchannel buffer 45 exceeds a predetermined threshold, the logical subchannel buffer 45 generates a back pressure signal XON / OFF, and the logical subchannel mapping Module 44 generates a channel-level stream after receiving the backpressure signal Control frame, the channel-level flow control frame is fed back to the board mapping module 42, and the board mapping module 42 transparently transmits to the message forwarding module 40, and the message forwarding module 40 stops sending a message after receiving the channel flow control frame, When the message in the logical sub-channel buffer 45 is lower than the specified low threshold, the logical sub-channel buffer 45 generates an XON / OFF signal with a back pressure signal value of 0, which is sent to the logical sub-channel mapping module 44, stop performing flow control, forming channel-level flow control.
- the message forwarding module sends 802.3x flow control frames to the peer device to form data transmission port flow control, thereby achieving "data transmission port level flow control + channel level flow control".
- the board mapping module 42 generates a board flow control frame, and the board mapping module combines the board flow control frame and the logic sub-channel level flow control frame, and then reports the The text forwarding module 40 sends the combined plate flow control frame to form a plate flow control, thereby implementing "data transmission port-level flow control + board-level flow control + channel-level flow control" flow control.
- the message forwarding module 40 receives a message from the FE / GE data transmission port, and forwards the message according to the requirements of the current transmission service according to the data transmission port, user, VLAN, or message body.
- the message format of the data transmission port is shown in FIG. 5a, which is composed of a frame header (SOF) and a payload (PAYLOAD) frame trailer (EOF).
- SOF frame header
- PAYLOAD payload
- EEF payload
- the board number and channel number obtained by the look-up table are inserted into the message to form a look-up table forwarded message, which is forwarded to the next level.
- the table forwarding message is shown in Figure 5b.
- the message further includes a 4-bit board number, an 8-bit channel number, and a 16-bit reserved word between the frame header and the payload. (Rev).
- a back pressure signal XON / OFF is generated, and the board mapping module generates a plate flow control frame and feeds it back to the message forwarding module 40.
- the plate flow control frame is shown in FIG. 5c.
- the frame structure is based on the look-up table forwarding message, and the 16-bit reserved word in the table look-up forwarding message is set to 16-bit flow control information.
- the flow control information includes 15-bit board congestion information flags AO ⁇ A14 and 1-bit frame type flag B, AO ⁇ A14 each represents the congestion of each board, which can reflect the 15 fast boards.
- a value of 0 indicates no congestion and a value of 1 Indicates congestion;
- B represents whether the current frame is an empty frame carrying only flow control information, a value of 0 is a normal data message, and a value of 1 is an empty frame carrying only flow control information.
- the flow control information has a frame type flag
- Data packets carry flow control information. In order to effectively use bandwidth, both of the above methods are used.
- an empty frame is constructed to carry the flow control information.
- each packet carries the flow control information of all the boards.
- the frame format is shown in FIG. 7.
- the channel-level flow control frame includes a frame header, 4-bit board number information, 8-bit channel number information, 16-bit flow control information, a payload, and a frame tail.
- the flow control information includes 14-bit board congestion information flag AO ⁇ A13, 1-bit current communication
- the road congestion information flag C and the 1-bit frame type flag B are similar to the flow control information in the plate flow control frame.
- Each of AO ⁇ A14 represents the congestion of each board, and it can reflect 14 boards.
- B represents the current board. Whether the frame is an empty frame that only carries flow control information.
- C represents whether the channel is congested according to the board number and channel number.
- the foregoing plate-based flow control or channel-level flow control is based on hardware backpressure, adding flow control information to the message or constructing an empty frame carrying the flow control information, and transmitting congested transmission boards or logic sub-frames.
- the channel implements flow control. Then, through the flow control based on the data transmission port level, the standard 802.3x flow control frame is fed back to the upper-level device, and plate or channel level flow control is realized.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Selective Calling Equipment (AREA)
- Communication Control (AREA)
- General Factory Administration (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Transmitters (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60316719T DE60316719T2 (de) | 2002-11-19 | 2003-11-19 | Flusssteuerungsverfahren einer man-übertragungseinrichtung |
EP03811330A EP1568173B1 (en) | 2002-11-19 | 2003-11-19 | Flow control method of man transmission device |
AU2003302100A AU2003302100A1 (en) | 2002-11-19 | 2003-11-19 | Flow control method of man transmission device |
US11/131,966 US7593328B2 (en) | 2002-11-19 | 2005-05-18 | Flow control method using feedback to control flow on the network, switch and channels in large communication networks |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB021487693A CN1260915C (zh) | 2002-11-19 | 2002-11-19 | 一种城域网传输设备的流量控制方法 |
CN02148769.3 | 2002-11-19 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/131,966 Continuation US7593328B2 (en) | 2002-11-19 | 2005-05-18 | Flow control method using feedback to control flow on the network, switch and channels in large communication networks |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004047368A1 true WO2004047368A1 (fr) | 2004-06-03 |
Family
ID=32315217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2003/000982 WO2004047368A1 (fr) | 2002-11-19 | 2003-11-19 | Procede de commande de flux d'un dispositif de transmission man |
Country Status (7)
Country | Link |
---|---|
US (1) | US7593328B2 (zh) |
EP (1) | EP1568173B1 (zh) |
CN (1) | CN1260915C (zh) |
AT (1) | ATE375049T1 (zh) |
AU (1) | AU2003302100A1 (zh) |
DE (1) | DE60316719T2 (zh) |
WO (1) | WO2004047368A1 (zh) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1260926C (zh) * | 2002-11-08 | 2006-06-21 | 华为技术有限公司 | 一种城域传输设备中虚容器映射通道的流量控制方法 |
US7742412B1 (en) | 2004-09-29 | 2010-06-22 | Marvell Israel (M.I.S.L.) Ltd. | Method and apparatus for preventing head of line blocking in an ethernet system |
US9002258B2 (en) * | 2006-01-18 | 2015-04-07 | Dongju Chung | Adaptable audio instruction system and method |
CN1909508B (zh) * | 2006-08-23 | 2010-08-18 | 华为技术有限公司 | 端口流控方法 |
CN100550852C (zh) * | 2007-01-18 | 2009-10-14 | 华为技术有限公司 | 一种实现海量端口反压的方法及其装置 |
US20080313240A1 (en) * | 2007-06-18 | 2008-12-18 | Freking Ronald E | Method for Creating Data Transfer Packets With Embedded Management Information |
US7733805B2 (en) | 2007-07-25 | 2010-06-08 | Brocade Communications Systems, Inc. | Method and apparatus for determining bandwidth-consuming frame flows in a network |
JP2009159467A (ja) * | 2007-12-27 | 2009-07-16 | Fujitsu Ltd | 無線通信装置、無線通信プログラム、および無線通信方法 |
CN101499879A (zh) * | 2008-02-01 | 2009-08-05 | 华为技术有限公司 | 一种故障反馈方法、系统及装置 |
GB2459838B (en) * | 2008-05-01 | 2010-10-06 | Gnodal Ltd | An ethernet bridge and a method of data delivery across a network |
US9906468B2 (en) * | 2011-10-27 | 2018-02-27 | Cavium, Inc. | Packet traffic control in a network processor |
US9306794B2 (en) | 2012-11-02 | 2016-04-05 | Brocade Communications Systems, Inc. | Algorithm for long-lived large flow identification |
US9577791B2 (en) | 2012-12-05 | 2017-02-21 | Intel Corporation | Notification by network element of packet drops |
US9030936B2 (en) * | 2013-06-12 | 2015-05-12 | Intel Corporation | Flow control with reduced buffer usage for network devices |
CN103701710B (zh) | 2013-12-20 | 2017-01-11 | 杭州华为数字技术有限公司 | 一种数据传输方法、核心转发设备以及端点转发设备 |
CN103763204B (zh) * | 2013-12-31 | 2017-03-08 | 华为技术有限公司 | 一种流量控制方法及装置 |
CN103731363B (zh) * | 2014-01-15 | 2019-03-01 | 网神信息技术(北京)股份有限公司 | 互联网流量控制方法和装置 |
CN106685847B (zh) * | 2015-11-06 | 2020-01-17 | 华为技术有限公司 | 一种报文处理方法、装置及设备 |
CN107547414A (zh) * | 2016-06-24 | 2018-01-05 | 中兴通讯股份有限公司 | 报文发送方法及装置 |
CN107360102B (zh) * | 2017-07-17 | 2019-11-08 | 迈普通信技术股份有限公司 | 以太报文接收方法及数据通信设备 |
CN108737296B (zh) * | 2017-09-27 | 2020-12-04 | 新华三技术有限公司 | 一种数据传输方法、装置和网络设备 |
CN110213168B (zh) * | 2018-02-28 | 2022-04-22 | 中航光电科技股份有限公司 | 一种fc转以太网的数据转换流量控制方法及装置 |
CN113874848A (zh) | 2019-05-23 | 2021-12-31 | 慧与发展有限责任合伙企业 | 用于促进网络接口控制器(nic)中对加速器的操作管理的系统和方法 |
US20240039871A1 (en) * | 2022-07-29 | 2024-02-01 | Cisco Technology, Inc. | First burst emulator in a network switch |
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WO2001076138A2 (en) * | 2000-03-31 | 2001-10-11 | International Business Machines Corporation | Method and system for controlling flows in sub-pipes of computer networks |
CN1353367A (zh) * | 2000-11-02 | 2002-06-12 | 北京算通数字技术研究中心有限公司 | 一种基于随机早期检测的逐节拥塞控制方法 |
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JPH10126419A (ja) * | 1996-10-23 | 1998-05-15 | Nec Corp | Atm交換機システム |
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-
2002
- 2002-11-19 CN CNB021487693A patent/CN1260915C/zh not_active Expired - Fee Related
-
2003
- 2003-11-19 DE DE60316719T patent/DE60316719T2/de not_active Expired - Lifetime
- 2003-11-19 AT AT03811330T patent/ATE375049T1/de not_active IP Right Cessation
- 2003-11-19 WO PCT/CN2003/000982 patent/WO2004047368A1/zh active IP Right Grant
- 2003-11-19 EP EP03811330A patent/EP1568173B1/en not_active Expired - Lifetime
- 2003-11-19 AU AU2003302100A patent/AU2003302100A1/en not_active Abandoned
-
2005
- 2005-05-18 US US11/131,966 patent/US7593328B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2001076138A2 (en) * | 2000-03-31 | 2001-10-11 | International Business Machines Corporation | Method and system for controlling flows in sub-pipes of computer networks |
CN1353367A (zh) * | 2000-11-02 | 2002-06-12 | 北京算通数字技术研究中心有限公司 | 一种基于随机早期检测的逐节拥塞控制方法 |
Also Published As
Publication number | Publication date |
---|---|
CN1260915C (zh) | 2006-06-21 |
DE60316719D1 (de) | 2007-11-15 |
CN1501639A (zh) | 2004-06-02 |
US20050270976A1 (en) | 2005-12-08 |
AU2003302100A1 (en) | 2004-06-15 |
US7593328B2 (en) | 2009-09-22 |
EP1568173B1 (en) | 2007-10-03 |
EP1568173A1 (en) | 2005-08-31 |
EP1568173A4 (en) | 2006-07-26 |
DE60316719T2 (de) | 2008-07-24 |
ATE375049T1 (de) | 2007-10-15 |
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