WO2017157116A1 - 一种流量拥塞控制方法、装置及存储介质 - Google Patents

一种流量拥塞控制方法、装置及存储介质 Download PDF

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Publication number
WO2017157116A1
WO2017157116A1 PCT/CN2017/073368 CN2017073368W WO2017157116A1 WO 2017157116 A1 WO2017157116 A1 WO 2017157116A1 CN 2017073368 W CN2017073368 W CN 2017073368W WO 2017157116 A1 WO2017157116 A1 WO 2017157116A1
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Prior art keywords
switching device
link
invalid
level switching
level
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English (en)
French (fr)
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薛红娟
曾敏
贺志强
冯越
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Sanechips Technology Co Ltd
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Sanechips Technology Co Ltd
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    • 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
    • H04L47/12—Avoiding congestion; Recovering from congestion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
    • H04L41/0659—Management of faults, events, alarms or notifications using network fault recovery by isolating or reconfiguring faulty entities
    • 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
    • H04L47/12—Avoiding congestion; Recovering from congestion
    • H04L47/122—Avoiding congestion; Recovering from congestion by diverting traffic away from congested entities

Definitions

  • the present invention relates to a packet switched data network, and in particular, to a traffic congestion control method, apparatus, and storage medium.
  • the switching system is a key component of the packet switching equipment.
  • the schematic diagram of the existing switching system is shown in Figure 1.
  • the switching system consists of switching access devices and switching devices.
  • the switching access devices are switched by source switching access devices and destinations.
  • the access device is formed; the source switching access device cuts the network packet into a cell and forwards it to the destination switching access device through the switching device.
  • the switching network is a bridge connecting the input port and the output port of the router, and is a core network for implementing packet packet forwarding.
  • a multi-level interconnected switching network is usually adopted.
  • a three-level CLOS (Charles Clos) switching network is the most commonly used multi-level interconnected switching network.
  • the number of switching interfaces (SIs, Switching Interfaces) and switching devices (SEs) in the switching network increases. Therefore, the factors affecting the balance of the switching network traffic increase. If the dynamic balance of the switched network traffic cannot be effectively controlled, the performance of the entire switching network will be affected.
  • the three-stage stacking structure of the switching network is as shown in FIG. 2, where SI is a switching access device, SE1 is a first-level switching device, SE2 is a second-level switching device, and SE3 is a third-level switching device, wherein the first level
  • the switching device and the third-level switching device are on the same chip, and the two are connected by a channel, and can communicate with each other.
  • the switching access device is connected to the switching device and the switching device through a serial high-speed link.
  • most switching networks support both unicast and multicast communication modes.
  • the source switching access device cuts the packet from the network into a cell and sends it to the first-level switching device, and the first-level switching device transmits the cell to the second-level switching device.
  • the second-level switching device performs routing and searching on the input cell and transmits the signal to the third-level switching device.
  • the third-level switching device performs route searching on the received cell and transmits the signal to the destination switching access device, and the destination exchange The access device reassembles the received cells back to the network via the message. As shown in FIG.
  • the traffic of the switching network can be dynamically balanced, and the traffic transmitted by each switching access device to the first-level switching device connected thereto is equal; however, if the first-level switching device and the first-level switching device When a link between the secondary switching devices is suddenly disconnected, the input bandwidth of the first-stage switching device is inevitably larger than the output bandwidth, and the cells are congested inside the first switching device.
  • the embodiment of the present invention is to provide a method, a device, and a storage medium for controlling traffic congestion, which can solve the problem of chip-level congestion caused by a change in link state or a change in system topology, and improve the performance of the switching system.
  • An embodiment of the present invention provides a traffic congestion control method, where the method includes:
  • the switching device transmits the control cell to the source switching access device; the source switching access device adjusts the data traffic sent to each switching device connected to itself according to the cell.
  • the link between the switching devices is invalid: the first-level switching device monitors the state of the link between itself and the second-level switching device, and the link does not receive the preset time. In the case of any data, it is determined that the link is invalid and the third level switching device is notified.
  • the sending, by the switching device, the control cell to the source switching access device includes:
  • the third-level switching The device sends a control cell to the source switching access device
  • the control cell carries the first-level switching device identifier in which the link is invalid, and the ratio of the current invalid link of the first-level switching device to the original effective link.
  • the source switching access device adjusts data traffic sent to each switching device connected to itself according to the cell, including:
  • the link between the first-level switching device and the second-level switching device is invalid in the control cell received by the source switching access device
  • the current invalid link is valid according to the first-level switching device.
  • the proportion of the link reduces the data traffic sent to the first-stage switching device in which the link is invalid, and increases the data traffic sent to other first-level switching devices that do not have a link invalid.
  • the source switching access device does not send data traffic to the first level switching device.
  • the method further includes:
  • the embodiment of the present invention further provides a traffic congestion control device, where the device includes: a monitoring module, a cell sending module, and a flow control module, where
  • the monitoring module is configured to monitor whether a link between the switching devices is invalid
  • the cell sending module is configured to send a control cell to the flow control module when the link between the switching devices is invalid;
  • the flow control module is configured to adjust data traffic sent to each switching device connected to the source switching access device according to the cell.
  • the monitoring module is specifically configured to: monitor a state of a link between the first-level switching device and the second-level switching device, and when the link does not receive any data within a preset time, It is determined that the link is invalid, and the cell sending module is notified.
  • the cell sending module is specifically configured to:
  • the control cell carries the first-level switching device identifier in which the link is invalid, and the ratio of the current invalid link of the first-level switching device to the original effective link.
  • the traffic control module is specifically configured to:
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions for executing the above-mentioned traffic congestion control method.
  • the switching device when the link between the switching devices is invalid, the switching device sends the control cell to the source switching access device; the source switching access device according to the letter Meta-adjusts the data traffic sent to each switching device connected to itself. In this way, the source switching access device can learn that an invalid link occurs in the switching network, thereby solving the problem of traffic congestion in the switching network by adjusting the proportion of the source switching access device sending data streams to the switching devices.
  • FIG. 1 is a schematic structural diagram of a switching system according to the present invention.
  • FIG. 2 is a schematic diagram of a three-level stack structure of a switching network according to the present invention.
  • FIG. 3 is a schematic flowchart of a traffic congestion control method according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a data flow and control information according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a traffic congestion control apparatus according to an embodiment of the present invention.
  • the switching device when the link between the switching devices is invalid, the switching device sends the control cell to the source switching access device; the source switching access device adjusts and sends to each exchange connected to itself according to the cell.
  • the data flow of the device when the link between the switching devices is invalid, the switching device sends the control cell to the source switching access device; the source switching access device adjusts and sends to each exchange connected to itself according to the cell. The data flow of the device.
  • FIG. 3 is a schematic flowchart of a traffic congestion control method according to an embodiment of the present invention. As shown in FIG. 3, the traffic congestion control in the embodiment of the present invention includes the following steps:
  • Step 301 When the link between the switching devices is invalid, the switching device sends the control cell to the source switching access device.
  • the link between the switching devices is invalid: the first-level switching device monitors the state of the link between itself and the second-level switching device, and when the link is received within a preset time When there is no data, it is determined that the link is invalid and the third level switching device is notified.
  • the switching device sends the control cell to the source switching access device, including: when the link between the first-level switching device and the second-level switching device is invalid, the third level The switching device sends a control cell to the source switching access device, where the control cell carries the first-level switching device identifier in which the link is invalid and the current invalid link of the first-level switching device The proportion of valid links.
  • the identifiers of the first-level switching devices that have failed the link and the first level are written in the fields.
  • the third-level switching device periodically sends a control cell to each of the source switching access devices, where the control cell carries the identifier of the first-stage switching switching device in which the link is invalid and the invalid chain of the first-level switching device Road and Information such as the ratio of the number of valid links.
  • Step 302 The source switching access device adjusts data traffic sent to each switching device connected to itself according to the cell.
  • the source switching access device adjusts the data traffic sent to each switching device connected to itself according to the cell, and the source switching access device receives the control message carrying the valid information. After the element, extracting information in the corresponding field of the control cell, when the control cell received by the source switching access device indicates that the link between the first-level switching device and the second-level switching device is invalid, Adjusting, according to the ratio of the current invalid link of the first-stage switching device to the original active link, the proportion of the data traffic sent to the first-level switching device connected thereto, specifically: reducing the transmission to the generated link is invalid
  • the data traffic of the first-stage switching device of the first-stage switching device increases the data traffic sent to other first-level switching devices that do not have a link invalid.
  • the method further includes: when the link between the first-stage switching device and the second-level switching device is invalid, the connection with the first-level switching device is The switching access device resumes transmission of data traffic to the first level switching device.
  • the traffic congestion control method according to the embodiment of the present invention is further described in detail below with reference to specific application scenarios.
  • the three-level switching system includes N switching access devices SI, N first-level switching devices SE1, and N second-level switching devices SE2 and N.
  • the third level switching device SE3 as shown in FIG. 4, if the link between the first level switching device SE1 and the second level switching device SE2 is suddenly invalid, the input bandwidth of the first level switching device SE1 is greater than the output bandwidth.
  • the embodiment of the present invention sends a field of the control cell to the switching access device SI by modifying the third-level switching device SE3. So that the field includes the identifier of the first-stage switching device SE1 in which the link is invalid, and the ratio of the number of invalid links of the first-level switching device SE1 to the original effective link number, so that the switching access device SI adjusts the direction
  • Each first-level switching device transmits a ratio of the number of cells, thereby achieving dynamic balancing of the entire switching network traffic.
  • FIG. 4 there are N switching access devices #1SI to #NSI connected to the first first-level switching device #1SE1, and the switching access device SI and the switching device SE, and the levels When the link between the switching devices SE is valid, the traffic of the three-level switching network is balanced according to FIG. 4, and the traffic sent by each source switching access device SI to each first-level switching device SE1 accounts for 1 of the total traffic sent by the switching device SE1. /N;
  • the first first-stage switching device #1SE1 is connected to the N second-level switching devices #1SE2 to #NSE2 through m links, if the first first-level switching device #1SE1 and the first A certain n (0 ⁇ n ⁇ m) link between the second-stage switching devices #1SE2 becomes invalid, as shown by the cross "x" in FIG. 4, then the first first-stage switching device #1SE1
  • the ratio of the number of invalid links to the number of original effective links is n/m.
  • the third-stage switching device SE3 Since the first-stage switching device SE1 and the third-stage switching device SE3 are on the same chip and have channels connected, when the first one When n links between the first-stage switching device #1SE1 and the first second-stage switching device #1SE2 are invalid, the third-stage switching device SE3 transmits control cells to the source switching access devices #1SI to #NSI.
  • the control cell includes an identifier of the first-level switching device in which the link is invalid, and a ratio of the invalid link of the first-level switching device to the original effective link;
  • the source switching access device #1SI ⁇ #NSI After receiving the control cell, the source switching access device #1SI ⁇ #NSI determines that the number of invalid links is greater than 0, and the ratio of the number of invalid links to the number of original effective links is n/m.
  • the source switching access device #1SI ⁇ #NSI will send data traffic to the first first-level switching device #1SE1 or The number of cells is reduced to the original n/m, that is, the number of data traffic or cells sent to the first first-stage switching device #1SE1 becomes (1/N)*(1-n/m), and at the same time, The number of data traffic or cells sent to other first-level switching devices #2SE1 to #NSE1 is increased to the original (n/m)*1/(N-1);
  • the number of data traffic or cells sent by the first source switching access device #1SI to other first-level switching devices #2SE1 to #NSE1 becomes (1/N). )*(1+(n/m)*(1/(N-1))).
  • the traffic congestion control method of the embodiment of the present invention is configured to process traffic congestion caused by a sudden disconnection of a link between a first-level switching device and a second-level switching device in a three-stage stacking structure of a switching network or a change in a system topology.
  • the problem Monitoring the link status in real time, and transmitting, by the third level switching device, a control cell to the switching access device, the control cell carrying the identifier of the first level switching device in which the link is invalid and the first level switching device.
  • the ratio of the invalid link to the original number of effective links so that after the source switching access device receives the cell, it can learn that the available link between the first-level switching device and the second-level switching device is reduced, and the source is adjusted.
  • the switching access device sends the ratio of the data traffic or the number of cells to each of the first-level switching devices, thereby solving the traffic congestion problem caused by the link ineffective in the switching network, and improving the performance of the entire switching network.
  • the embodiments of the present invention are applicable not only in a scenario transmitted in a unicast manner but also in a scenario transmitted in a multicast manner.
  • FIG. 5 is a schematic structural diagram of a traffic congestion control apparatus according to an embodiment of the present invention.
  • the apparatus includes: a monitoring module 51, a cell sending module 52, and a traffic.
  • the control module 53 is configured to be located in the first level switching device, the cell sending module 52 is located in the third level switching device, and the flow control module 53 is located in the source switching access device, specifically,
  • the monitoring module 51 is configured to monitor whether a link failure occurs between the switching devices
  • the monitoring module 51 is specifically configured to: monitor a state of a link between the first-level switching device and the second-level switching device, and receive no data when the link does not receive the preset time. When it is determined that the link is invalid, and notify the cell sending module 52;
  • the cell sending module 52 is configured to send a control cell to the flow control module when the link between the switching devices is invalid;
  • the cell sending module 52 is configured to: when the link between the first-level switching device and the second-level switching device is invalid, send a control cell to the flow control module 53;
  • the control cell carries the first-level switching device identifier of the occurrence of the link invalidation and the ratio of the current invalid link of the first-level switching device to the original effective link.
  • the cell sending module 52 may modify, by modifying certain fields in the control cell sent by the third-level switching access device, the first-level switching devices that have failed the link in the fields. And the ratio of the invalid link of the first-level switching device to the original effective link number.
  • the cell sending module 52 periodically sends a control cell to each source switching access device, where the control cell carries the identifier of the first-stage switching switching device in which the link is invalid and the first-level switching device. Information such as the ratio of the invalid link to the original number of valid links.
  • the flow control module 53 is configured to adjust data traffic sent to each switching device connected to the source switching access device according to the cell.
  • the flow control module 53 is specifically configured to: receive the carried After the control cell of the valid information, the information in the corresponding field of the control cell is extracted, and when the received control cell indicates that the link between the first-level switching device and the second-level switching device is invalid, Adjusting, according to the ratio of the current invalid link of the first-stage switching device to the original active link, the proportion of the data traffic sent to the first-level switching device connected thereto, specifically: reducing the transmission to the generated link is invalid.
  • the data traffic of the first-stage switching device of the first-stage switching device increases the data traffic sent to other first-level switching devices that do not have a link invalid.
  • the flow control module 53 is further configured to: when the links between a certain first-level switching device and the second-level switching device are all invalid, and the first level The flow control module 53 of all the source switching access devices connected to the switching device does not send data traffic to the first level switching device.
  • the flow control module 53 is further configured to: when the invalid link between the first-level switching device and the second-level switching device is restored to be valid, the first-level switching device is connected The traffic control module 53 in the switching access device resumes transmission of data traffic to the first level switching device.
  • each processing module in the traffic congestion control apparatus shown in FIG. 5 can be understood by referring to the related description of the foregoing traffic congestion control method. It should be understood by those skilled in the art that the functions of the processing modules in the traffic congestion control apparatus shown in FIG. 5 can be implemented by a program running on a processor, or can be implemented by a specific logic circuit, for example, by a central processing unit. (CPU), microprocessor (MPU), digital signal processor (DSP), or field programmable gate array (FPGA) implementation.
  • CPU central processing unit.
  • MPU microprocessor
  • DSP digital signal processor
  • FPGA field programmable gate array
  • the above-mentioned traffic congestion control method is implemented in the form of a software function module, and is sold or used as a separate product, it may also be stored in a computer readable storage medium.
  • the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions.
  • Make a computer device available All or part of the method described in the various embodiments of the present invention is performed as a personal computer, server, or network device.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
  • program codes such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
  • the embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores a computer program, and the computer program is used to execute the foregoing traffic congestion control method in the embodiment of the present invention.
  • the disclosed method and apparatus may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the modules is only a logical function division.
  • there may be another division manner for example, multiple modules or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed.
  • the communication connections between the various components shown or discussed may be indirect coupling or communication connections through some interfaces, devices or modules, and may be electrical, mechanical or otherwise.
  • the modules described above as separate components may or may not be physically separated.
  • the components displayed as modules may or may not be physical modules, that is, may be located in one place or distributed to multiple network modules; Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional module in each embodiment of the present invention may be integrated into one processing module, or each module may be separately used as one module, or two or more modules may be integrated into one module;
  • the module can be implemented in the form of hardware or in the form of hardware plus software function modules.
  • the foregoing program may be stored in a computer readable storage medium, and when executed, the program includes The steps of the above method embodiments;
  • the foregoing storage medium includes: a removable storage device, a read-only memory (ROM), a magnetic disk, or an optical disk, and the like, which can store program codes.
  • the above-described integrated module of the embodiment of the present invention may be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a stand-alone product.
  • the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions.
  • a computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes various media that can store program codes, such as a mobile storage device, a ROM, a magnetic disk, or an optical disk.

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Abstract

本发明提供了一种流量拥塞控制方法，包括：当交换装置之间的链路无效时，交换装置发送控制信元到源交换接入装置；源交换接入装置根据所述信元，调整发送至与自身相连的各个交换装置的数据流量。本发明还提供了一种流量拥塞控制装置及存储介质。

Description

一种流量拥塞控制方法、装置及存储介质 技术领域
本发明涉及分组交换数据网，尤其涉及一种流量拥塞控制方法、装置及存储介质。
背景技术
交换系统是分组交换设备的关键组成部分，现有的交换系统结构示意图如图1所示，交换系统由交换接入装置和交换装置组成，交换接入装置是由源交换接入装置和目的交换接入装置组成；源交换接入装置将网络报文切割成信元，通过交换装置转发给目的交换接入装置。
交换网络是连接路由器输入端口和输出端口的桥梁，是实现分组报文转发的核心网络。在大容量高端路由器中，为满足超大信息量的交换容量需求，通常采用多级互联的交换网络，目前，三级CLOS(Charles Clos)交换网络是最常用的一种多级互联交换网络。
随着交换网络容量的不断增大，交换网络中交换接入装置(SI，Switch Interface)与交换装置(SE，Switch Element)的数量不断增多，因此，影响交换网络流量均衡的因素也随之增多，如果不能有效的控制交换网络流量的动态平衡将会影响整个交换网络的性能。
目前交换网络的三级堆叠结构如图2所示，SI为交换接入装置，SE1为第一级交换装置，SE2为第二级交换装置，SE3为第三级交换装置，其中，第一级交换装置和第三级交换装置在同一个芯片上，两者之间有通道相连，可以互相通信，交换接入装置与交换装置以及交换装置之间均通过串行高速链路相连。目前大多数的交换网络都支持单播和组播两种通讯模式，以 单播信元的传输方式为例，源交换接入装置将来自网络中的报文切割成信元，发给第一级交换装置，第一级交换装置将信元传输给第二级交换装置，第二级交换装置对输入的信元进行路由查找后传输给第三级交换装置，最后，第三级交换装置对接收到的信元进行路由查找后传输给目的交换接入装置，目的交换接入装置将接收的信元经过报文重组返回到网络中。如图2所示，在正常情况下，该交换网络的流量能够实现动态平衡，各个交换接入装置向与其相连的第一级交换装置发送的流量均等；但是，如果第一级交换装置与第二级交换装置之间的某条链路突然断开，则必然引起该第一级交换装置的输入带宽大于输出带宽，信元在第一交换装置内部发生拥塞。
发明内容
有鉴于此，本发明实施例期望提供一种流量拥塞控制方法、装置及存储介质，能够解决由于链路状态发生变化或系统拓扑结构变化导致的芯片级拥塞问题，提高了交换系统的性能。
为达到上述目的，本发明的技术方案是这样实现的：
本发明实施例提供了一种流量拥塞控制方法，其特征在于，所述方法包括：
当交换装置之间的链路无效时，交换装置发送控制信元到源交换接入装置；源交换接入装置根据所述信元，调整发送至与自身相连的各个交换装置的数据流量。
上述方案中，所述交换装置之间的链路无效包括：第一级交换装置监测自身与第二级交换装置之间的链路的状态，当所述链路在预设时间内接收不到任何数据时，则确定所述链路无效，并通知第三级交换装置。
上述方案中，所述当交换装置之间的链路无效时，交换装置发送控制信元到源交换接入装置包括：
当第一级交换装置与第二级交换装置之间的链路无效时，第三级交换 装置发送控制信元到源交换接入装置；
其中，所述控制信元中携带有所述发生链路无效的第一级交换装置标识以及所述第一级交换装置当前无效链路与原有效链路的比例。
上述方案中，所述源交换接入装置根据所述信元，调整发送至与自身相连的各个交换装置的数据流量包括：
当源交换接入装置接收到的控制信元中指示某一第一级交换装置与第二级交换装置之间的链路无效时，根据所述第一级交换装置当前无效链路与原有效链路的比例，减小发送至所述发生链路无效的第一级交换装置的数据流量，增加发送至其他未发生链路无效的第一级交换装置的数据流量。
上述方案中，当某一第一级交换装置与第二级交换装置之间的链路全部无效时，所述源交换接入装置不向所述第一级交换装置发送数据流量。
上述方案中，所述方法还包括：
当所述第一级交换装置与第二级交换装置之间无效的链路恢复为有效时，恢复对所述第一级交换装置的数据流量的发送。
本发明实施例还提供了一种流量拥塞控制装置，所述装置包括：监测模块、信元发送模块、流量控制模块，其中，
所述监测模块，配置为监测交换装置之间是否发生链路无效；
所述信元发送模块，配置为当交换装置之间的链路无效时，发送控制信元到流量控制模块；
所述流量控制模块，配置为根据所述信元，调整发送至与源交换接入装置相连的各个交换装置的数据流量。
上述方案中，所述监测模块具体配置为：监测第一级交换装置与第二级交换装置之间的链路的状态，当所述链路在预设时间内接收不到任何数据时，则确定所述链路无效，并通知信元发送模块。
上述方案中，所述信元发送模块具体配置为：
当第一级交换装置与第二级交换装置之间的链路无效时，发送控制信元到流量控制模块；
其中，所述控制信元中携带有所述发生链路无效的第一级交换装置标识以及所述第一级交换装置当前无效链路与原有效链路的比例。
上述方案中，所述流量控制模块具体配置为：
当接收到的控制信元中指示某一第一级交换装置与第二级交换装置之间的链路无效时，根据所述第一级交换装置当前无效链路与原有效链路的比例，减小发送至所述发生链路无效的第一级交换装置的数据流量，增加发送至其他未发生链路无效的第一级交换装置的数据流量；
当某一第一级交换装置与第二级交换装置之间的链路全部无效时，不向所述第一级交换装置发送数据流量。
当所述第一级交换装置与第二级交换装置之间无效的链路恢复为有效时，恢复对所述第一级交换装置的数据流量的发送。
本发明实施例还提供一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，该计算机可执行指令用于执行上述的流量拥塞控制方法。
本发明实施例所提供的流量拥塞控制方法、装置及存储介质，当交换装置之间的链路无效时，交换装置发送控制信元到源交换接入装置；源交换接入装置根据所述信元，调整发送至与自身相连的各个交换装置的数据流量。如此，使源交换接入装置能够获知交换网络中出现无效链路，从而通过调整源交换接入装置向各个交换装置发送数据流的比例，解决了交换网中流量拥塞问题。
附图说明
图1为本发明交换系统结构示意图；
图2为本发明交换网络的三级堆叠结构示意图；
图3为本发明实施例流量拥塞控制方法流程示意图；
图4为本发明实施例数据流和控制信息走向示意图；
图5为本发明实施例流量拥塞控制装置结构示意图。
具体实施方式
本发明实施例中，当交换装置之间的链路无效时，交换装置发送控制信元到源交换接入装置；源交换接入装置根据所述信元，调整发送至与自身相连的各个交换装置的数据流量。
下面结合附图及具体实施例，对本发明技术方案的实施作进一步的详细描述。图3为本发明实施例流量拥塞控制方法流程示意图，如图3所示，本发明实施例流量拥塞控制包括以下步骤：
步骤301：当交换装置之间的链路无效时，交换装置发送控制信元到源交换接入装置；
本发明实施例中，所述交换装置之间的链路无效包括：第一级交换装置监测自身与第二级交换装置之间的链路的状态，当所述链路在预设时间内接收不到任何数据时，则确定所述链路无效，并通知第三级交换装置。
所述当交换装置之间的链路无效时，交换装置发送控制信元到源交换接入装置包括：当第一级交换装置与第二级交换装置之间的链路无效时，第三级交换装置发送控制信元到源交换接入装置；其中，所述控制信元中携带有所述发生链路无效的第一级交换装置标识以及所述第一级交换装置当前无效链路与原有效链路的比例。
具体的，可以通过修改所述第三级交换接入装置发送的控制信元中的某些字段，在这些字段中写入发生链路无效的第一级交换装置的标识和所述第一级交换装置无效链路与原来有效链路数量的比例。第三级交换装置周期性的向每个源交换接入装置发送控制信元，该控制信元携带上述发生链路无效的第一级交换交换装置的标识和所述第一级交换装置无效链路与 原来有效链路数量的比例等信息。
步骤302：源交换接入装置根据所述信元，调整发送至与自身相连的各个交换装置的数据流量。
本发明实施例中，所述源交换接入装置根据所述信元，调整发送至与自身相连的各个交换装置的数据流量包括：源交换接入装置接收到所述携带有有效信息的控制信元后，提取所述控制信元相应字段内的信息，当源交换接入装置接收到的控制信元中指示某一第一级交换装置与第二级交换装置之间的链路无效时，根据所述第一级交换装置当前无效链路与原有效链路的比例，调整向与其相连的第一级交换装置发送的数据流量的比例，具体的：减小发送至所述发生链路无效的第一级交换装置的数据流量，增加发送至其他未发生链路无效的第一级交换装置的数据流量。
本发明实施例中，在极端情况下，当某一第一级交换装置与第二级交换装置之间的链路全部无效时，与所述第一级交换装置相连的所有源交换接入装置均不向所述第一级交换装置发送任何数据流量。
本发明实施例中，所述方法还包括：当所述第一级交换装置与第二级交换装置之间的链路无效的链路恢复为有效时，与所述第一级交换装置相连的交换接入装置恢复对所述第一级交换装置的数据流量的发送。
下面结合具体应用场景，对本发明实施例所述流量拥塞控制方法进行进一步详细说明。
图4为本发明实施例数据流和控制信息走向示意图，其中，带箭头的实线
Figure PCTCN2017073368-appb-000001
为数据流的流向，带箭头的虚线
Figure PCTCN2017073368-appb-000002
为控制信元流向；带箭头的细线
Figure PCTCN2017073368-appb-000003
表示单条链路，带箭头的粗线
Figure PCTCN2017073368-appb-000004
表示m条链路，如图4所示，本发明实施例所述三级交换系统包括N个交换接入装置SI，N个第一级交换装置SE1，N个第二级交换装置SE2和N个第三级交换装置SE3；如图4所述场景，如果第一级交换装置SE1与第二级交 换装置SE2之间有链路突然无效，那么第一级交换装置SE1的输入带宽大于输出带宽，数据流量或信元在第一级交换装置SE1内部极有可能出现拥塞，为解决这一问题，本发明实施例通过修改第三级交换装置SE3向交换接入装置SI发送控制信元的字段，使得所述字段包含发生链路无效的第一级交换装置SE1的标识和以及所述第一级交换装置SE1无效链路数量与原来有效链路数量的比例，使交换接入装置SI调整向每个第一级交换装置发送信元数量的比例，从而实现整个交换网流量的动态平衡。
具体的，如图4所述场景，与第一个第一级交换装置#1SE1相连的有N个交换接入装置#1SI～#NSI，在交换接入装置SI与交换装置SE、以及各级交换装置SE之间链路有效的情况下图4所述三级交换网流量均衡，每个源交换接入装置SI给每个第一级交换装置SE1发送的流量各占其发送总流量的1/N；
本发明实施例中，第一个第一级交换装置#1SE1通过m条链路与N个第二级交换装置#1SE2～#NSE2相连，如果第一个第一级交换装置#1SE1与第一个第二级交换装置#1SE2之间的某n(0<n<m)条链路变为无效，如图4中叉号“×”所示，那么第一个第一级交换装置#1SE1的无效链路的数量与原来有效链路的数量的比例为n/m，由于第一级交换装置SE1与第三级交换装置SE3在同一块芯片上且有通道相连，因此，当第一个第一级交换装置#1SE1与第一个第二级交换装置#1SE2之间的n条链路无效时，第三级交换装置SE3向源交换接入装置#1SI～#NSI发送控制信元，所述控制信元中包括发生链路无效的第一级交换装置的标识以及所述第一级交换装置无效链路与原有效链路的比例；
源交换接入装置#1SI～#NSI收到所述控制信元后，确定无效链路的数量大于0，且无效链路的数量与原来有效链路的数量的比例为n/m，所述源交换接入装置#1SI～#NSI将发往第一个第一级交换装置#1SE1的数据流量或 信元数量减少为原来的n/m，即发往第一个第一级交换装置#1SE1的数据流量或信元数量变为(1/N)*(1-n/m)，同时，将发往其它第一级交换装置#2SE1～#NSE1的数据流量或信元数量增大为原来的(n/m)*1/(N-1)；
以第一个源交换接入装置#1SI为例，第一个源交换接入装置#1SI发往其他第一级交换装置#2SE1～#NSE1的数据流量或信元数量变为(1/N)*(1+(n/m)*(1/(N-1)))。总的数据流量或信元数量百分比为：(1/N)*(1-n/m)+(1/N)*(1+(n/m)*(1/(N-1)))*(N-1)＝100％；可见，进行数据流量调整后，并没有影响总数据流量或信元数量。其他源交换接入装置#2SI～#NSI以此类推。
需要说明的是，上述N个交换接入装置和交换装置，m条有效链路和n条无效链路是为了清楚的描述本发明的方案而列举的，实际中并不限于上述几个装置和链路。
本发明实施例所述流量拥塞控制方法，用于处理交换网络三级堆叠结构中第一级交换装置与第二级交换装置之间的链路突然断开或系统拓扑结构发生变化导致的流量拥塞的问题。实时监测链路状态，并通过第三级交换装置向交换接入装置发送控制信元，所述控制信元携带有发生链路无效的第一级交换装置的标识和所述第一级交换装置无效链路与原来有效链路数量的比例，使得源交换接入装置接收到所述信元后，能够获知第一级交换装置和第二级交换装置之间的可用链路减少，通过调整源交换接入装置向各个第一级交换装置发送数据流量或信元数量的比例，从而解决了交换网中发生链路无效时导致的流量拥塞问题，提高整个交换网络的性能。
本发明实施例不仅应用于以单播方式传输的场景中，也应用于以组播方式传输的场景中。
本发明所述的方法并不限于具体实施方式中所述的实施例，本领域技术人员根据本发明的技术方案得出其它的实施方式，同样属于本发明的技 术创新范围。
本发明实施例还提供了一种流量拥塞控制装置，图5为本发明实施例流量拥塞控制装置结构示意图，如图5所示，所述装置包括：监测模块51、信元发送模块52、流量控制模块53，其中，所述监测模块51位于第一级交换装置，所述信元发送模块52位于第三级交换装置，所述流量控制模块53位于源交换接入装置，具体的，
所述监测模块51，配置为监测交换装置之间是否发生链路无效；
本发明实施例中，所述监测模块51具体配置为：监测第一级交换装置与第二级交换装置之间的链路的状态，当所述链路在预设时间内接收不到任何数据时，则确定所述链路无效，并通知信元发送模块52；
所述信元发送模块52，配置为当交换装置之间的链路无效时，发送控制信元到流量控制模块；
本发明实施例中，所述信元发送模块52具体配置为：当第一级交换装置与第二级交换装置之间的链路无效时，发送控制信元到流量控制模块53；其中，所述控制信元中携带有所述发生链路无效的第一级交换装置标识以及所述第一级交换装置当前无效链路与原有效链路的比例。
具体的，所述信元发送模块52可以通过修改所述第三级交换接入装置发送的控制信元中的某些字段，在这些字段中写入发生链路无效的第一级交换装置的标识和所述第一级交换装置无效链路与原来有效链路数量的比例。所述信元发送模块52周期性的向每个源交换接入装置发送控制信元，该控制信元携带上述发生链路无效的第一级交换交换装置的标识和所述第一级交换装置无效链路与原来有效链路数量的比例等信息。
所述流量控制模块53，配置为根据所述信元，调整发送至与源交换接入装置相连的各个交换装置的数据流量。
本发明实施例中，所述流量控制模块53具体配置为：收到所述携带有 有效信息的控制信元后，提取所述控制信元相应字段内的信息，当接收到的控制信元中指示某一第一级交换装置与第二级交换装置之间的链路无效时，根据所述第一级交换装置当前无效链路与原有效链路的比例，调整向与其相连的第一级交换装置发送的数据流量的比例，具体的：减小发送至所述发生链路无效的第一级交换装置的数据流量，增加发送至其他未发生链路无效的第一级交换装置的数据流量。
本发明实施例中，在极端情况下，所述流量控制模块53还配置为：当某一第一级交换装置与第二级交换装置之间的链路全部无效时，与所述第一级交换装置相连的所有源交换接入装置中的流量控制模块53均不向所述第一级交换装置发送数据流量。
本发明实施例中，所述流量控制模块53还配置为：当所述第一级交换装置与第二级交换装置之间无效的链路恢复为有效时，所述第一级交换装置相连的交换接入装置中的流量控制模块53恢复对所述第一级交换装置的数据流量的发送。
图5中所示的流量拥塞控制装置中的各处理模块的实现功能，可参照前述流量拥塞控制方法的相关描述而理解。本领域技术人员应当理解，图5所示的流量拥塞控制装置中各处理模块的功能可通过运行于处理器上的程序而实现，也可通过具体的逻辑电路而实现，比如：可由中央处理器(CPU)、微处理器(MPU)、数字信号处理器(DSP)、或现场可编程门阵列(FPGA)实现。
本发明实施例中，如果以软件功能模块的形式实现上述流量拥塞控制方法，并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明实施例的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可 以是个人计算机、服务器、或者网络设备等)执行本发明各个实施例所述方法的全部或部分。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read Only Memory，ROM)、磁碟或者光盘等各种可以存储程序代码的介质。这样，本发明实施例不限制于任何特定的硬件和软件结合。
相应地，本发明实施例还提供一种计算机存储介质，该计算机存储介质中存储有计算机程序，该计算机程序用于执行本发明实施例的上述流量拥塞控制方法。
在本发明所提供的几个实施例中，应该理解到，所揭露的方法及装置，可以通过其他的方式实现。以上所描述的装置实施例仅仅是示意性的，例如，所述模块的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，如：多个模块或组件可以结合，或可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的各组成部分相互之间的通信连接可以是通过一些接口，设备或模块的间接耦合或通信连接，可以是电性的、机械的或其他形式的。
上述作为分离部件说明的模块可以是、或也可以不是物理上分开的，作为模块显示的部件可以是、或也可以不是物理模块，即可以位于一个地方，也可以分布到多个网络模块上；可以根据实际的需要选择其中的部分或全部模块来实现本实施例方案的目的。
另外，在本发明各实施例中的各功能模块可以全部集成在一个处理模块中，也可以是各模块分别单独作为一个模块，也可以两个或两个以上模块集成在一个模块中；上述集成的模块既可以采用硬件的形式实现，也可以采用硬件加软件功能模块的形式实现。
本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于计算机可读取存储介质中，该程序在执行时，执行包括上述方法实施例的步骤；而 前述的存储介质包括：移动存储设备、只读存储器(ROM，Read-Only Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
或者，本发明实施例上述集成的模块如果以软件功能模块的形式实现并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明实施例的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机、服务器、或者网络设备等)执行本发明各个实施例所述方法的全部或部分。而前述的存储介质包括：移动存储设备、ROM、磁碟或者光盘等各种可以存储程序代码的介质。
本发明实施例中记载的流量拥塞控制方法、装置只以上述实施例为例，但不仅限于此，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。
以上所述仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。

Claims (11)

  1. 一种流量拥塞控制方法，所述方法包括：
    当交换装置之间的链路无效时，交换装置发送控制信元到源交换接入装置；源交换接入装置根据所述信元，调整发送至与自身相连的各个交换装置的数据流量。
  2. 根据权利要求1所述方法，其中，所述交换装置之间的链路无效包括：第一级交换装置监测自身与第二级交换装置之间的链路的状态，当所述链路在预设时间内接收不到任何数据时，则确定所述链路无效，并通知第三级交换装置。
  3. 根据权利要求1所述方法，其中，所述当交换装置之间的链路无效时，交换装置发送控制信元到源交换接入装置包括：
    当第一级交换装置与第二级交换装置之间的链路无效时，第三级交换装置发送控制信元到源交换接入装置；
    其中，所述控制信元中携带有所述发生链路无效的第一级交换装置标识以及所述第一级交换装置当前无效链路与原有效链路的比例。
  4. 根据权利要求1所述方法，其中，所述源交换接入装置根据所述信元，调整发送至与自身相连的各个交换装置的数据流量包括：
    当源交换接入装置接收到的控制信元中指示某一第一级交换装置与第二级交换装置之间的链路无效时，根据所述第一级交换装置当前无效链路与原有效链路的比例，减小发送至所述发生链路无效的第一级交换装置的数据流量，增加发送至其他未发生链路无效的第一级交换装置的数据流量。
  5. 根据权利要求4所述方法，其中，当某一第一级交换装置与第二级交换装置之间的链路全部无效时，所述源交换接入装置不向所述第一级交换装置发送数据流量。
  6. 根据权利要求1至5任一项所述方法，其中，所述方法还包括：
    当所述第一级交换装置与第二级交换装置之间无效的链路恢复为有效时，恢复对所述第一级交换装置的数据流量的发送。
  7. 一种流量拥塞控制装置，所述装置包括：监测模块、信元发送模块、流量控制模块，其中，
    所述监测模块，配置为监测交换装置之间是否发生链路无效；
    所述信元发送模块，配置为当交换装置之间的链路无效时，发送控制信元到流量控制模块；
    所述流量控制模块，配置为根据所述信元，调整发送至与源交换接入装置相连的各个交换装置的数据流量。
  8. 根据权利要求7所述装置，其中，所述监测模块配置为：监测第一级交换装置与第二级交换装置之间的链路的状态，当所述链路在预设时间内接收不到任何数据时，则确定所述链路无效，并通知信元发送模块。
  9. 根据权利要求7所述装置，其中，所述信元发送模块配置为：
    当第一级交换装置与第二级交换装置之间的链路无效时，发送控制信元到流量控制模块；
    其中，所述控制信元中携带有所述发生链路无效的第一级交换装置标识以及所述第一级交换装置当前无效链路与原有效链路的比例。
  10. 根据权利要求7所述装置，其中，所述流量控制模块配置为：
    当接收到的控制信元中指示某一第一级交换装置与第二级交换装置之间的链路无效时，根据所述第一级交换装置当前无效链路与原有效链路的比例，减小发送至所述发生链路无效的第一级交换装置的数据流量，增加发送至其他未发生链路无效的第一级交换装置的数据流量；
    当某一第一级交换装置与第二级交换装置之间的链路全部无效时，不向所述第一级交换装置发送数据流量。
    当所述第一级交换装置与第二级交换装置之间无效的链路恢复为有效时，恢复对所述第一级交换装置的数据流量的发送。
  11. 一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，该计算机可执行指令用于执行权利要求1至6任一项所述的流量拥塞控制方法。
PCT/CN2017/073368 2016-03-14 2017-02-13 一种流量拥塞控制方法、装置及存储介质 Ceased WO2017157116A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112583746A (zh) * 2019-09-30 2021-03-30 深圳市中兴微电子技术有限公司 信元传输方法及装置、存储介质、电子装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110098962B (zh) * 2019-04-25 2022-06-07 新华三技术有限公司 流量传输方法、装置、电子设备及可读存储介质

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030021230A1 (en) * 2001-03-09 2003-01-30 Petaswitch Solutions, Inc. Switch fabric with bandwidth efficient flow control
US20080298248A1 (en) * 2007-05-28 2008-12-04 Guenter Roeck Method and Apparatus For Computer Network Bandwidth Control and Congestion Management
US7719982B2 (en) * 2005-08-31 2010-05-18 Intel Corporation Switching device utilizing flow-control management
CN104184676A (zh) * 2013-05-27 2014-12-03 华为技术有限公司 一种数据中心网络及其流量均衡方法和控制器
CN104618254A (zh) * 2015-02-12 2015-05-13 杭州华三通信技术有限公司 软件定义网络中避免网络拥塞的方法和控制器
CN105337883A (zh) * 2015-08-20 2016-02-17 电子科技大学 一种支持多业务的网络交换装置及其实现方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101656893B (zh) * 2009-08-04 2012-02-01 华为技术有限公司 一种多级交换网
CN102238072B (zh) * 2010-05-06 2015-03-25 中兴通讯股份有限公司 一种动态选择路由的方法及clos交换网系统
CN102835081B (zh) * 2012-05-21 2015-07-08 华为技术有限公司 基于三级互联交换网络的调度方法、装置及系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030021230A1 (en) * 2001-03-09 2003-01-30 Petaswitch Solutions, Inc. Switch fabric with bandwidth efficient flow control
US7719982B2 (en) * 2005-08-31 2010-05-18 Intel Corporation Switching device utilizing flow-control management
US20080298248A1 (en) * 2007-05-28 2008-12-04 Guenter Roeck Method and Apparatus For Computer Network Bandwidth Control and Congestion Management
CN104184676A (zh) * 2013-05-27 2014-12-03 华为技术有限公司 一种数据中心网络及其流量均衡方法和控制器
CN104618254A (zh) * 2015-02-12 2015-05-13 杭州华三通信技术有限公司 软件定义网络中避免网络拥塞的方法和控制器
CN105337883A (zh) * 2015-08-20 2016-02-17 电子科技大学 一种支持多业务的网络交换装置及其实现方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112583746A (zh) * 2019-09-30 2021-03-30 深圳市中兴微电子技术有限公司 信元传输方法及装置、存储介质、电子装置
CN112583746B (zh) * 2019-09-30 2024-03-22 深圳市中兴微电子技术有限公司 信元传输方法及装置、存储介质、电子装置

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