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1. 发明授权

US06647019B1 Packet-switch system 有权
标题翻译：分组交换系统
公开(公告)号：US06647019B1
公开(公告)日：2003-11-11
申请号：US09303765
申请日：1999-04-29
申请人： Nicholas W. McKeown , Costas Calamvokis , Shang-Tse Chuang , Steven Lin , Rolf Muralt , Balaji Prabhakar , Anders Swahn , Gregory Watson
发明人： Nicholas W. McKeown , Costas Calamvokis , Shang-Tse Chuang , Steven Lin , Rolf Muralt , Balaji Prabhakar , Anders Swahn , Gregory Watson
IPC分类号： H04L1256
CPC分类号： H04L49/3009 , H04L12/56 , H04L12/5602 , H04L49/20 , H04L49/201 , H04L49/205 , H04L49/254 , H04L49/255 , H04L49/30 , H04L49/3081 , H04L49/503 , H04L49/557 , H04L2012/561 , H04L2012/5615 , H04Q11/0478
摘要： A packet-switch system utilizes a linecard-to-switch (LCS) protocol to integrate linecards with a switch core. Since the linecards include a majority of the buffering of the system and are located physically away from switch core, the size of the switch core can be reduced in size. The LCS protocol is a label-swapping, credit-based, flow-control, which enables the system to operate without requiring such information as the number of port modules available within a switch core or what Qualities of Service (QoS) or multicast flows are available. In addition, the LCS protocol enables the linecards to contain and manage the majority of the buffers in the system, and also to control the data drop policy within the system.
摘要翻译：分组交换机系统利用线卡到交换机（LCS）协议将线路卡与交换机核心集成。由于线路卡包括系统的大部分缓冲并且物理上远离交换机核心，因此可以减小交换机核心的大小。 LCS协议是一种标签交换，基于信用的流量控制，使系统能够在不需要交换机核心内可用的端口模块数量或服务质量（QoS）或多播流量等）的信息的情况下运行可用。此外，LCS协议使线路卡能够包含和管理系统中的大多数缓冲区，并且还可以控制系统内的数据丢弃策略。

2. 发明授权

US08762915B1 System and method for integrated circuit die size reduction 有权
标题翻译：集成电路芯片尺寸缩小的系统和方法
公开(公告)号：US08762915B1
公开(公告)日：2014-06-24
申请号：US12884264
申请日：2010-09-17
申请人： Balaji Prabhakar , Sunil Kumar Singla
发明人： Balaji Prabhakar , Sunil Kumar Singla
IPC分类号： G06F9/455 , G06F17/50
CPC分类号： G06F17/505 , G06F2217/84
摘要： A circuit analysis tool is provided for die size reduction analysis. A processor determines a first initial output slack time. If the first initial output slack time is greater than zero, a first circuit element is modeled with a second die area, less than the first die area. The second die area is associated with a third delay greater than the first delay. Then, the second data signal is modeled equal to the first data signal with the third delay. If a first modified output slack time is greater than or equal to zero, the first circuit element first die can be replaced with the second die. If the first modified output slack time is a first value less than zero, a first delay is added to the clock signal that is greater than or equal to the first value.
摘要翻译：提供了一种电路分析工具用于模具尺寸缩小分析。处理器确定第一初始输出松弛时间。如果第一初始输出松弛时间大于零，则第一电路元件被建模为具有小于第一管芯区域的第二管芯区域。第二管芯区域与大于第一延迟的第三延迟相关联。然后，第二数据信号被建模为等于具有第三延迟的第一数据信号。如果第一修改的输出松弛时间大于或等于零，则可以用第二管芯替换第一电路元件第一管芯。如果第一修改的输出松弛时间是小于零的第一值，则将第一延迟添加到大于或等于第一值的时钟信号。

3. 发明授权

US08325602B2 Method and system to manage network traffic congestion in networks with link layer flow control 有权
标题翻译：利用链路层流控制来管理网络中网络流量拥塞的方法和系统
公开(公告)号：US08325602B2
公开(公告)日：2012-12-04
申请号：US12641142
申请日：2009-12-17
申请人： James Paul Rivers , Balaji Prabhakar , Peter Newman
发明人： James Paul Rivers , Balaji Prabhakar , Peter Newman
IPC分类号： H04J1/16 , H04L12/28
CPC分类号： H04L47/10 , H04L47/11 , H04L47/193 , H04L47/26 , H04L47/30
摘要： A method and system to manage network traffic congestion in networks with link layer flow control is provided. The system comprises a physical queue monitor configured to monitor a state of a physical queue at a network device, a link layer flow control activator configured to activate link layer flow control based on the state of the physical queue, a proxy queue control module, a proxy queue monitor to monitor the state of the proxy queue, and a transport layer flow control activator. The proxy queue control module may be configured to update a state of a proxy queue based on the state of the physical queue. The proxy queue monitor may be configured to monitor the state of the proxy queue. The transport layer flow control activator may be configured to activate transport layer flow control based on the state of the proxy queue.
摘要翻译：提供了一种利用链路层流控制来管理网络中网络流量拥塞的方法和系统。该系统包括被配置为监视网络设备上的物理队列的状态的物理队列监视器，被配置为基于物理队列的状态激活链路层流控制的链路层流控制激活器，代理队列控制模块，代理队列监视器来监视代理队列的状态，以及传输层流控制激活器。代理队列控制模块可以被配置为基于物理队列的状态来更新代理队列的状态。代理队列监视器可以被配置为监视代理队列的状态。传输层流控制激活器可以被配置为基于代理队列的状态激活传输层流控制。

4. 发明授权

US08407364B2 Apparatus and method for providing a congestion measurement in a network 有权
公开(公告)号：US08407364B2
公开(公告)日：2013-03-26
申请号：US11924274
申请日：2007-10-25
申请人： Balaji Prabhakar , Rong Pan
发明人： Balaji Prabhakar , Rong Pan
IPC分类号： G06F15/16
CPC分类号： H04L69/02 , H04L43/0882 , H04L43/16 , H04L47/10 , H04L47/11 , H04L47/12 , H04L47/25
摘要： Example embodiments of a system and method for providing a congestion measurement in a network are disclosed. In an example embodiment information is received at an information transfer rate, from a source network device. A sample of the information may be taken before the information is transmitted to a destination network device. In an example embodiment, a congestion measurement value is computed that corresponds to the sample and represented with at least two bits. A multi-bit indicator of the congestion measurement value is then transmitted to control the information transfer rate of information arriving in the future.

5. 发明授权

US07773519B2 Method and system to manage network traffic congestion 有权
标题翻译：管理网络流量拥塞的方法和系统
公开(公告)号：US07773519B2
公开(公告)日：2010-08-10
申请号：US11972055
申请日：2008-01-10
申请人： Balaji Prabhakar , Peter Newman
发明人： Balaji Prabhakar , Peter Newman
IPC分类号： H04L12/26 , H04L12/56
CPC分类号： H04L47/10 , H04L47/11 , H04L47/263 , H04L47/30 , Y02D50/10
摘要： A method and system to manage network congestion are provided. In one example embodiment, the system comprises a congestion point queue, a monitor to sample a state of the congestion point queue, a consolidated parameter generator to generate a consolidated feedback parameter, and a feedback message generator to generate a feedback message, utilizing the consolidated feedback parameter. The congestion point queue may be configured to queue messages from a reaction point to a congestion point. The state of the congestion point queue may be reflected by an equilibrium queue level, a queue offset, and a rate of change of a size of the congestion point queue. The equilibrium queue level may represent a particular predetermined size of the congestion point queue. The queue offset may represent a deviation from the equilibrium queue level. The consolidated feedback parameter may be generated to reflect the queue offset and the rate of change of the size of the congestion point queue.
摘要翻译：提供了一种管理网络拥塞的方法和系统。在一个示例实施例中，系统包括拥塞点队列，用于采样拥塞点队列的状态的监视器，用于生成合并反馈参数的合并参数生成器以及用于生成反馈消息的反馈消息生成器，利用合并的反馈参数。拥塞点队列可以被配置为将消息从反应点排队到拥塞点。拥塞点队列的状态可以由均衡队列级别，队列偏移以及拥塞点队列的大小的变化率来反映。均衡队列级别可以表示拥塞点队列的特定预定大小。队列偏移可能表示与平衡队列级别的偏差。可以生成统一的反馈参数以反映队列偏移和拥塞点队列的大小的变化率。

6. 发明授权

US06351466B1 Switching systems and methods of operation of switching systems 失效
标题翻译：交换系统和交换系统的操作方法
公开(公告)号：US06351466B1
公开(公告)日：2002-02-26
申请号：US09071085
申请日：1998-05-01
申请人： Balaji Prabhakar , Nick McKeown
发明人： Balaji Prabhakar , Nick McKeown
IPC分类号： H04L1228
CPC分类号： H04L12/5601 , H04L12/56 , H04L45/00 , H04L45/60 , H04L47/10 , H04L47/28 , H04L49/1576 , H04L49/3081 , H04L2012/5679 , H04L2012/5681 , H04Q11/0478
摘要： Architectures based on a non-blocking fabric, such as a crosspoint switch, are attractive for use in high-speed LAN switches, ATM switches and IP routers. These fabrics, coupled with memory bandwidth limitations, dictate that queues be placed at the input of the switch. But it is well known that input-queueing can lead to low throughput, and does not allow the control of latency through the switch. This is in contrast to output-queueing, which maximizes throughput, and permits the accurate control of packet latency through scheduling. A switch is disclosed with virtual output queueing at the input and queueing at the output with a speedup of just four, and the use of a “most urgent packet first” method of operation, the switch can behave identically to an output-queued switch, regardless of the nature of the arriving traffic. The switch therefore performs as if it were output-queued, yet uses memory that runs more slowly.
摘要翻译：基于非阻塞结构（例如交叉点交换机）的架构对于在高速LAN交换机，ATM交换机和IP路由器中使用是有吸引力的。这些结构与存储器带宽限制相结合，决定了将队列置于交换机的输入端。但是众所周知，输入排队可能导致低吞吐量，并且不允许通过交换机控制延迟。这与输出排队相反，输出队列最大化吞吐量，并允许通过调度精确控制数据包等待时间。公开了一种开关，其输入端处于虚拟输出处，并且在输出端排队，加速只有四个，并且使用“最紧急的分组优先”操作方法，该交换机可以与输出排队交换机的行为相同，不管到达的交通的性质如何。因此，交换机就像输出排队一样执行，但使用运行速度更慢的内存。

7. 发明申请

US20130227163A1 APPARATUS AND METHOD FOR PROVIDING A CONGESTION MEASUREMENT IN A NETWORK 审中-公开
公开(公告)号：US20130227163A1
公开(公告)日：2013-08-29
申请号：US13848592
申请日：2013-03-21
申请人： Balaji Prabhakar , Rong Pan
发明人： Balaji Prabhakar , Rong Pan
IPC分类号： H04L29/06
CPC分类号： H04L69/02 , H04L43/0882 , H04L43/16 , H04L47/10 , H04L47/11 , H04L47/12 , H04L47/25
摘要： Example embodiments of a system and method for providing a congestion measurement in a network are disclosed. In an example embodiment information is received at an information transfer rate, from a source network device. A sample of the information may be taken before the information is transmitted to a destination network device. In an example embodiment, a congestion measurement value is computed that corresponds to the sample and represented with at least two bits. A multi-bit indicator of the congestion measurement value is then transmitted to control the information transfer rate of information arriving in the future.

8. 发明申请

US20090238070A1 METHOD AND SYSTEM TO ADJUST CN CONTROL LOOP PARAMETERS AT A CONGESTION POINT 审中-公开
标题翻译：用于调整CN控制环路参数的方法和系统
公开(公告)号：US20090238070A1
公开(公告)日：2009-09-24
申请号：US12052203
申请日：2008-03-20
申请人： James Paul Rivers , Balaji Prabhakar
发明人： James Paul Rivers , Balaji Prabhakar
IPC分类号： H04L12/24
CPC分类号： H04L47/10 , H04L47/11 , H04L47/263 , H04L47/28
摘要： A method and system to adjust Congestion Notification control loop parameters at a congestion point are provided. The system comprises a monitor to sample a state of a congestion point the congestion point being to receive messages from a reaction point; a history generator to generate an updated reaction to congestion history by consolidating the state of the congestion point with a current reaction to congestion history, the current reaction to congestion history being associated with a current feedback message; a message generator to generate an updated feedback message based on the updated reaction to congestion history; a message update module to replace the current feedback message with the updated feedback message; and a communications module to communicate the updated feedback message to the reaction point.
摘要翻译：提供了一种在拥塞点调整拥塞通知控制环路参数的方法和系统。所述系统包括：监视器，用于对所述拥塞点的状态进行采样，所述拥塞点是从反应点接收消息; 历史发生器，用于通过将拥塞点的状态与当前对拥塞历史的反应相结合来产生对拥塞历史的更新反应，当前对拥塞历史的反应与当前反馈消息相关联; 消息发生器，用于基于对拥塞历史的更新反应来生成更新的反馈消息; 消息更新模块，用于更新所述反馈消息; 以及通信模块，用于将更新的反馈消息传达到所述反应点。

9. 发明授权

US08477615B2 Method and system to manage network traffic congestion 有权
标题翻译：管理网络流量拥塞的方法和系统
公开(公告)号：US08477615B2
公开(公告)日：2013-07-02
申请号：US12851353
申请日：2010-08-05
申请人： Balaji Prabhakar , Peter Newman
发明人： Balaji Prabhakar , Peter Newman
IPC分类号： H04L12/56 , H04L12/26
CPC分类号： H04L47/10 , H04L47/11 , H04L47/263 , H04L47/30 , Y02D50/10
摘要： A method and system to manage network congestion are provided. In one example embodiment, the method comprises receiving an indication of a rate increase request at a reaction point computer system, determining information indicative of a frequency of rate decrease requests during a period of time, and initiating a rate increase signal utilizing the information indicative of the frequency of rate decrease requests during the period of time.
摘要翻译：提供了一种管理网络拥塞的方法和系统。在一个示例实施例中，该方法包括在反应点计算机系统处接收速率增加请求的指示，确定在一段时间内指示速率降低请求的频率的信息，以及利用指示一段时间内降率要求的频率。

10. 发明申请

US20100157803A1 METHOD AND SYSTEM TO MANAGE NETWORK TRAFFIC CONGESTION IN NETWORKS WITH LINK LAYER FLOW CONTROL 有权
标题翻译：用网络流量控制网络管理网络的方法和系统
公开(公告)号：US20100157803A1
公开(公告)日：2010-06-24
申请号：US12641142
申请日：2009-12-17
申请人： James Paul Rivers , Balaji Prabhakar , Peter Newman
发明人： James Paul Rivers , Balaji Prabhakar , Peter Newman
IPC分类号： H04L12/56
CPC分类号： H04L47/10 , H04L47/11 , H04L47/193 , H04L47/26 , H04L47/30
摘要： A method and system to manage network traffic congestion in networks with link layer flow control is provided. The system comprises a physical queue monitor configured to monitor a state of a physical queue at a network device, a link layer flow control activator configured to activate link layer flow control based on the state of the physical queue, a proxy queue control module, a proxy queue monitor to monitor the state of the proxy queue, and a transport layer flow control activator. The proxy queue control module may be configured to update a state of a proxy queue based on the state of the physical queue. The proxy queue monitor may be configured to monitor the state of the proxy queue. The transport layer flow control activator may be configured to activate transport layer flow control based on the state of the proxy queue.
摘要翻译：提供了一种利用链路层流控制来管理网络中网络流量拥塞的方法和系统。该系统包括被配置为监视网络设备上的物理队列的状态的物理队列监视器，被配置为基于物理队列的状态激活链路层流控制的链路层流控制激活器，代理队列控制模块，代理队列监视器来监视代理队列的状态，以及传输层流控制激活器。代理队列控制模块可以被配置为基于物理队列的状态来更新代理队列的状态。代理队列监视器可以被配置为监视代理队列的状态。传输层流控制激活器可以被配置为基于代理队列的状态激活传输层流控制。

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