公开(公告)号：US07602720B2

公开(公告)日：2009-10-13

申请号：US11155388

申请日：2005-06-16

申请人： Davide Bergamasco ,  Flavio Bonomi ,  Valentina Alaria ,  Andrea Baldini

发明人： Davide Bergamasco ,  Flavio Bonomi ,  Valentina Alaria ,  Andrea Baldini

IPC分类号： G01R31/08 ,  G06F11/00 ,  G08C15/00 ,  H04J1/16 ,  H04J3/14 ,  H04L1/00 ,  H04L12/26

CPC分类号： H04L47/10 ,  H04L47/24 ,  H04L47/26 ,  H04L47/30 ,  H04L47/31

摘要： Novel methods and devices are provided for AQM of input-buffered network devices. Preferred implementations of the invention control overall buffer occupancy while protecting uncongested individual VOQs. The probability of setting a “global drop flag” (which is not necessarily used to trigger packet drops, but may also be used to trigger other AQM responses) may depend, at least in part, on the lesser of a running average of buffer occupancy and instantaneous buffer occupancy. In some preferred embodiments, this probability also depends on the number of active VOQs. Moreover, a global drop flag is set in conjunction with a drop threshold M associated with the VOQs. Whether an AQM response is made may depend on whether a global drop flag has been set and whether a destination VOQ contains M or more packets. Different M values may be established for different classes of traffic, e.g., with higher M values for higher-priority traffic. AQM responses (e.g., to drop packets) may be taken more aggressively when there is a larger number of active VOQs.

摘要翻译： 为输入缓冲网络设备的AQM提供了新的方法和设备。 本发明的优选实施方式控制整体缓冲器占用，同时保护非拥塞的各个VOQ。 设置“全局丢弃标志”（其不一定用于触发分组丢弃，但也可用于触发其它AQM响应）的概率至少部分地取决于缓冲器占用的运行平均值的较小值 和瞬时缓冲区占用。 在一些优选实施例中，该概率也取决于活动VOQ的数量。 此外，全局丢弃标志与与VOQ相关联的丢弃阈值M一起设置。 是否进行AQM响应可能取决于是否设置了全局丢弃标志，以及目的地VOQ是否包含M个或更多个数据包。 可以为不同类别的业务建立不同的M值，例如，对于较高优先级业务具有较高的M值。 当存在较大数量的活动VOQ时，AQM响应（例如，丢弃分组）可能被更积极地采用。

公开(公告)号：US20070248005A1

公开(公告)日：2007-10-25

申请号：US11408293

申请日：2006-04-20

申请人： Rong Pan ,  Flavio Bonomi ,  George Varghese

发明人： Rong Pan ,  Flavio Bonomi ,  George Varghese

IPC分类号： H04L12/26

CPC分类号： H04L47/215 ,  H04L47/193 ,  H04L47/20

摘要： Various improvements are provided for prior art policing methods, including token bucket methods and virtual time policing methods. Some preferred methods of the invention involve assigning a non-zero drop probability even when the packet would otherwise have been transmitted according to a prior art policing method. For example, a non-zero drop probability may be assigned even when there are sufficient tokens in a token bucket to allow transmission of the packet. A non-zero drop probability may be assigned, for example, when a token bucket level is at or below a predetermined threshold or according to a rate at which a token bucket is being emptied. Some implementations involve treating a token bucket as a virtual queue wherein the number of free elements in the virtual queue is proportional to the number of remaining tokens in the token bucket. Such implementations may involve predicting a future virtual queue size according to a previous virtual queue size and using this predicted value to calculate a drop probability.

摘要翻译： 为现有技术的管理方法提供了各种改进，包括令牌桶方法和虚拟时间监管方法。 本发明的一些优选方法涉及分配非零丢弃概率，即使当根据现有技术的监管方法将分组以其他方式传输时也是如此。 例如，即使在令牌桶中有足够的令牌来允许分组的传输，也可以分配非零丢弃概率。 例如，当令牌桶级别等于或低于预定阈值时或者根据令牌桶被清空的速率时，可以分配非零丢弃概率。 一些实现涉及将令牌桶视为虚拟队列，其中虚拟队列中的空闲元素的数量与令牌桶中剩余令牌的数量成正比。 这样的实现可以涉及根据先前的虚拟队列大小预测未来的虚拟队列大小，并且使用该预测值来计算丢弃概率。

公开(公告)号：US20070091802A1

公开(公告)日：2007-04-26

申请号：US11257141

申请日：2005-10-24

申请人： Rong Pan ,  Stanley Trimble ,  Flavio Bonomi

发明人： Rong Pan ,  Stanley Trimble ,  Flavio Bonomi

IPC分类号： H04L12/26

CPC分类号： H04L47/32 ,  H04L41/0896 ,  H04L43/00 ,  H04L43/0829 ,  H04L43/0894 ,  H04L43/16 ,  H04L47/10 ,  H04L47/30

摘要： Class-based bandwidth partitioning of a sequence of packets of varying packet classes is performed, such as, but not limited to determining whether or not to admit a packet to a queue based on a probability corresponding to a class of packets associated with the packet, with this probability being based on measured arrival traffic and a fair share based on the length of the queue. Data path processing is performed on each packet to determine whether to admit or drop the packet, and to record the measured received traffic. Control path processing is periodically performed to update these probabilities based on determined arrival rates and fair shares for each class of packets. In this manner, a relatively small amount of processing and resources are required to partition bandwidth for a scalable number of classes of packets.

摘要翻译： 执行不同分组类别的分组序列的基于类的带宽划分，例如但不限于基于与分组相关联的分组类别对应的概率来确定是否允许分组到队列， 这个概率基于测量的到达流量和基于队列长度的公平共享。 对每个数据包执行数据路径处理，以确定是否允许或丢弃数据包，并记录测量的接收流量。 定期执行控制路径处理，以便根据每类分组的确定到达率和公平共享来更新这些概率。 以这种方式，需要相对少量的处理和资源来分配用于可分级数量级的分组的带宽。

公开(公告)号：US20070081454A1

公开(公告)日：2007-04-12

申请号：US11248933

申请日：2005-10-11

申请人： Davide Bergamasco ,  Andrea Baldini ,  Valentina Alaria ,  Flavio Bonomi ,  Rong Pan

发明人： Davide Bergamasco ,  Andrea Baldini ,  Valentina Alaria ,  Flavio Bonomi ,  Rong Pan

IPC分类号： H04L12/26

CPC分类号： H04L43/0882 ,  H04L43/062 ,  H04L47/10 ,  H04L47/11 ,  H04L47/263 ,  H04L47/30

摘要： The present invention provides improved methods and devices for managing network congestion. Preferred implementations of the invention allow congestion to be pushed from congestion points in the core of a network to reaction points, which may be edge devices, host devices or components thereof. Preferably, rate limiters shape individual flows of the reaction points that are causing congestion. Parameters of these rate limiters are preferably tuned based on feedback from congestion points, e.g., in the form of backward congestion notification (“BCN”) messages. In some implementations, such BCN messages include congestion change information and at least one instantaneous measure of congestion. The instantaneous measure(s) of congestion may be relative to a threshold of a particular queue and/or relative to a threshold of a buffer that includes a plurality of queues.

摘要翻译： 本发明提供了用于管理网络拥塞的改进的方法和设备。 本发明的优选实现允许将拥塞从网络核心中的拥塞点推送到可以是边缘设备，主机设备或其组件的反应点。 优选地，速率限制器形成引起堵塞的反应点的各个流。 这些速率限制器的参数优选地基于来自拥塞点的反馈来调整，例如以后向拥塞通知（“BCN”）消息的形式。 在一些实现中，这样的BCN消息包括拥塞变化信息和至少一个拥塞的瞬时测量。 拥塞的瞬时测量可以是相对于特定队列的阈值和/或相对于包括多个队列的缓冲器的阈值。

公开(公告)号：US20060101140A1

公开(公告)日：2006-05-11

申请号：US11084587

申请日：2005-03-18

申请人： Silvano Gai ,  Thomas Edsall ,  Luca Cafiero ,  Davide Bergamasco ,  Dinesh Dutt ,  Flavio Bonomi

发明人： Silvano Gai ,  Thomas Edsall ,  Luca Cafiero ,  Davide Bergamasco ,  Dinesh Dutt ,  Flavio Bonomi

IPC分类号： G06F15/173

CPC分类号： H04L12/4633 ,  H04L12/4641 ,  H04L47/10 ,  H04L47/13 ,  H04L47/24 ,  H04L47/266 ,  H04L47/32 ,  H04L47/39 ,  H04L69/22

摘要： The present invention provides methods and devices for implementing a Low Latency Ethernet (“LLE”) solution, also referred to herein as a Data Center Ethernet (“DCE”) solution, which simplifies the connectivity of data centers and provides a high bandwidth, low latency network for carrying Ethernet and storage traffic. Some aspects of the invention involve transforming FC frames into a format suitable for transport on an Ethernet. Some preferred implementations of the invention implement multiple virtual lanes (“VLs”) in a single physical connection of a data center or similar network. Some VLs are “drop” VLs, with Ethernet-like behavior, and others are “no-drop” lanes with FC-like behavior. Some preferred implementations of the invention provide guaranteed bandwidth based on credits and VL. Active buffer management allows for both high reliability and low latency while using small frame buffers. Preferably, the rules for active buffer management are different for drop and no drop VLs.

公开(公告)号：US09241197B2

公开(公告)日：2016-01-19

申请号：US13750555

申请日：2013-01-25

申请人： Douglas S. Chan ,  Xiaoqing Zhu ,  Flavio Bonomi

发明人： Douglas S. Chan ,  Xiaoqing Zhu ,  Flavio Bonomi

IPC分类号： H04N21/6405 ,  H04N21/2343 ,  H04N21/63 ,  H04N21/6408

CPC分类号： H04N21/6405 ,  H04N21/234327 ,  H04N21/631 ,  H04N21/6408

摘要： A method is provided in one example and can include receiving a source data stream, generating a base layer sub-stream from the source data stream, and generating an enhancement layer sub-stream from the source data stream. The method further includes communicating the base layer sub-stream to a client device using a first communication protocol, and communicating the enhancement layer sub-stream to the client device using a second communication protocol. In a particular example, the one-to-many communication protocol is a multicast communication protocol and the second communication protocol is a unicast communication protocol. In another example, the base layer sub-stream is sent to the client device via a first network connection and the enhancement layer sub-stream is sent to the client device via a second network connection.

摘要翻译： 在一个示例中提供了一种方法，并且可以包括接收源数据流，从源数据流生成基层子流，以及从源数据流生成增强层子流。 该方法还包括使用第一通信协议将基础层子流传送到客户端设备，以及使用第二通信协议将增强层子流传送到客户端设备。 在特定示例中，一对多通信协议是多播通信协议，第二通信协议是单播通信协议。 在另一示例中，基层子流经由第一网络连接被发送到客户端设备，并且增强层子流经由第二网络连接被发送到客户端设备。

公开(公告)号：US08903593B1

公开(公告)日：2014-12-02

申请号：US13117860

申请日：2011-05-27

申请人： Sateesh K. Addepalli ,  Lillian Lei Dai ,  Ashok K. Moghe ,  Flavio Bonomi ,  Rodolfo A. Milito ,  Vina Ermagan ,  Fabio R. Maino ,  Pere Monclus

发明人： Sateesh K. Addepalli ,  Lillian Lei Dai ,  Ashok K. Moghe ,  Flavio Bonomi ,  Rodolfo A. Milito ,  Vina Ermagan ,  Fabio R. Maino ,  Pere Monclus

IPC分类号： G01M17/00 ,  G06F7/00 ,  G06F11/30 ,  G06F19/00 ,  G07C5/00

CPC分类号： H04W4/046 ,  B60R16/023 ,  B60W50/10 ,  G06F3/017 ,  G06F3/167 ,  G06F9/542 ,  G06F21/45 ,  H04L1/008 ,  H04L29/06578 ,  H04L43/0811 ,  H04L43/0858 ,  H04L43/0876 ,  H04L45/12 ,  H04L51/02 ,  H04L61/2592 ,  H04L63/08 ,  H04L63/107 ,  H04L67/12 ,  H04L67/32 ,  H04L69/18 ,  H04Q9/00 ,  H04W4/00 ,  H04W4/10 ,  H04W8/06 ,  H04W8/08 ,  H04W8/26 ,  H04W12/02 ,  H04W12/04 ,  H04W12/06 ,  H04W12/08 ,  H04W28/0215 ,  H04W28/06 ,  H04W36/08 ,  H04W40/02 ,  H04W40/20 ,  H04W48/02 ,  H04W48/06 ,  H04W48/16 ,  H04W48/18 ,  H04W52/12 ,  H04W52/143 ,  H04W52/225 ,  H04W52/241 ,  H04W52/346 ,  H04W72/0406 ,  H04W72/042 ,  H04W72/0493 ,  H04W76/45 ,  H04W80/02 ,  H04W84/005 ,  H04W84/12 ,  H04W92/18 ,  Y02A30/60

摘要： A method in one example embodiment includes receiving a set of data in real time from a plurality of machine devices associated with at least one vehicle, providing a set of reference data corresponding to a machine device of the plurality of machine devices, comparing the set of data with the set of reference data, and detecting a deviation within the set of data from the set of reference data. The method further includes initiating an operation associated with the deviation. The set of reference data could be a trend of previous data received from the machine device or a common trend based on a previous set of data of the machine device. More specific embodiments include receiving a plurality of data containing the set of data from the plurality of machine devices and identifying a state of the machine device using the set of data.

摘要翻译： 一个示例实施例中的方法包括从与至少一个车辆相关联的多个机器设备实时接收一组数据，提供与多个机器设备的机器设备相对应的一组参考数据， 具有参考数据集的数据，以及从该组参考数据中检测该组数据内的偏差。 该方法还包括启动与偏差相关联的操作。 参考数据集可以是从机器装置接收的先前数据的趋势或基于机器装置的先前数据集合的常见趋势。 更具体的实施例包括从多个机器设备接收包含该组数据的多个数据，并使用该组数据识别机器设备的状态。

公开(公告)号：US20140248051A1

公开(公告)日：2014-09-04

申请号：US14275445

申请日：2014-05-12

申请人： Ornan Gerstel ,  Flavio Bonomi ,  David Ward

发明人： Ornan Gerstel ,  Flavio Bonomi ,  David Ward

IPC分类号： H04B10/079 ,  H04L12/707 ,  H04L12/803 ,  H04L12/721

CPC分类号： H04B10/0793 ,  H04B10/07955 ,  H04J14/0221 ,  H04J14/0227 ,  H04J14/0267 ,  H04J14/0284 ,  H04L45/22 ,  H04L45/245 ,  H04L45/70 ,  H04L47/10 ,  H04L47/125 ,  Y02D50/30

摘要： A method for communicating optically between nodes of an optical network, including forming, between a first node and a second node of the network, a set of lightpaths, each of the set of lightpaths having a respective configuration, and transferring communication traffic between the first and second nodes via the set of lightpaths. The method also includes forming a determination for the set of lightpaths that a communication traffic level associated therewith is less than a predetermined threshold, and in response to the determination, removing a lightpath having a given configuration from the set of lightpaths to form a reduced set of lightpaths. The method further includes transferring the communication traffic between the first and second nodes via the reduced set of lightpaths, while reducing a level of power consumption in the removed lightpath and while maintaining the given configuration of the removed lightpath.

摘要翻译： 一种用于在光网络的节点之间进行光学通信的方法，包括在所述网络的第一节点和所述第二节点之间形成一组光路，所述一组光路中的每一个具有相应的配置，并且在所述第一 以及经由一组光路的第二节点。 该方法还包括形成对于与其相关联的通信业务量小于预定阈值的光路集合的确定，并且响应于该确定，从所述一组光路中去除具有给定配置的光路以形成缩小集合 的光线。 该方法还包括经由减少的光路集合在第一节点和第二节点之间传送通信业务，同时降低去除的光路中的功率消耗水平，同时保持去除的光路的给定配置。

公开(公告)号：US08792352B2

公开(公告)日：2014-07-29

申请号：US13101870

申请日：2011-05-05

申请人： Davide Bergamasco ,  Andrea Baldini ,  Valentina Alaria ,  Flavio Bonomi ,  Rong Pan

发明人： Davide Bergamasco ,  Andrea Baldini ,  Valentina Alaria ,  Flavio Bonomi ,  Rong Pan

IPC分类号： H04J1/16

CPC分类号： H04L43/0882 ,  H04L43/062 ,  H04L47/10 ,  H04L47/11 ,  H04L47/263 ,  H04L47/30

摘要： The present invention provides improved methods and devices for managing network congestion. Preferred implementations of the invention allow congestion to be pushed from congestion points in the core of a network to reaction points, which may be edge devices, host devices or components thereof. Preferably, rate limiters shape individual flows of the reaction points that are causing congestion. Parameters of these rate limiters are preferably tuned based on feedback from congestion points, e.g., in the form of backward congestion notification (“BCN”) messages. In some implementations, such BCN messages include congestion change information and at least one instantaneous measure of congestion. The instantaneous measure(s) of congestion may be relative to a threshold of a particular queue and/or relative to a threshold of a buffer that includes a plurality of queues.

摘要翻译： 本发明提供了用于管理网络拥塞的改进的方法和设备。 本发明的优选实现允许将拥塞从网络核心中的拥塞点推送到可以是边缘设备，主机设备或其组件的反应点。 优选地，速率限制器形成引起堵塞的反应点的各个流。 这些速率限制器的参数优选地基于来自拥塞点的反馈来调整，例如以后向拥塞通知（“BCN”）消息的形式。 在一些实现中，这样的BCN消息包括拥塞变化信息和至少一个拥塞的瞬时测量。 拥塞的瞬时测量可以是相对于特定队列的阈值和/或相对于包括多个队列的缓冲器的阈值。

公开(公告)号：US08724990B2

公开(公告)日：2014-05-13

申请号：US12586041

申请日：2009-09-15

申请人： Ornan Gerstel ,  Flavio Bonomi ,  David Ward

发明人： Ornan Gerstel ,  Flavio Bonomi ,  David Ward

IPC分类号： H04J14/00

CPC分类号： H04B10/0793 ,  H04B10/07955 ,  H04J14/0221 ,  H04J14/0227 ,  H04J14/0267 ,  H04J14/0284 ,  H04L45/22 ,  H04L45/245 ,  H04L45/70 ,  H04L47/10 ,  H04L47/125 ,  Y02D50/30

摘要： A method for communicating optically between nodes of an optical network, including forming, between a first node and a second node of the network, a set of lightpaths, each of the set of lightpaths having a respective configuration, and transferring communication traffic between the first and second nodes via the set of lightpaths. The method also includes forming a determination for the set of lightpaths that a communication traffic level associated therewith is less than a predetermined threshold, and in response to the determination, removing a lightpath having a given configuration from the set of lightpaths to form a reduced set of lightpaths. The method further includes transferring the communication traffic between the first and second nodes via the reduced set of lightpaths, while reducing a level of power consumption in the removed lightpath and while maintaining the given configuration of the removed lightpath.

摘要翻译： 一种用于在光网络的节点之间进行光学通信的方法，包括在所述网络的第一节点和所述第二节点之间形成一组光路，所述一组光路中的每一个具有相应的配置，并且在所述第一 以及经由一组光路的第二节点。 该方法还包括形成对于与其相关联的通信业务量小于预定阈值的光路集合的确定，并且响应于该确定，从所述一组光路中去除具有给定配置的光路以形成缩小集合 的光线。 该方法还包括经由减少的光路集合在第一节点和第二节点之间传送通信业务，同时降低去除的光路中的功率消耗水平，同时保持去除的光路的给定配置。