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公开(公告)号：US08824284B2
公开(公告)日：2014-09-02
申请号：US12780524
申请日：2010-05-14
Applicant: Brad Matthews , Bruce Kwan , Puneet Agarwal
Inventor： Brad Matthews , Bruce Kwan , Puneet Agarwal
CPC classification number: H04L47/39 , H04L43/026 , H04L45/00 , H04L45/302 , H04L45/745 , H04L47/125 , H04L47/2441 , H04L47/41 , Y02D50/30
Abstract: Methods and apparatus for dynamic load balancing using virtual link credit accounting are disclosed. An example method includes receiving, at a network device, a data packet to be communicated using an aggregation group, the aggregation group including a plurality of virtual links having a common destination. The example method further includes determining a hash value based on the packet and determining an assigned virtual link of the plurality of virtual links based on the hash value. The example method also includes reducing a number of available transmission credits for the aggregation group and reducing a number of available transmission credits for the assigned virtual link. The example method still further includes communicating the packet to another network device using the assigned virtual link.
Abstract translation: 披露了使用虚拟链接信用账户进行动态负载均衡的方法和装置。 一种示例方法包括在网络设备处接收要使用聚合组进行传送的数据分组，所述聚合组包括具有公共目的地的多个虚拟链路。 该示例方法还包括基于分组确定散列值，并且基于该散列值确定多个虚拟链路中的分配的虚拟链路。 该示例方法还包括减少用于聚合组的可用传输信用数量，并减少所分配的虚拟链路的可用传输信用数量。 该示例方法还包括使用分配的虚拟链路将分组传送到另一网络设备。
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2.发明申请System and Method for Hierarchical Adaptive Dynamic Egress Port and Queue Buffer Management 有权用于分层自适应动态出口端口和队列缓冲区管理的系统和方法
公开(公告)号：US20130155859A1
公开(公告)日：2013-06-20
申请号：US13523994
申请日：2012-06-15
Applicant: Bruce Kwan , Puneet Agarwal
Inventor： Bruce Kwan , Puneet Agarwal
IPC: H04L12/24
CPC classification number: H04L49/9005 , H04L47/6215 , H04L49/9036
Abstract: A system and method for hierarchical adaptive dynamic egress port and queue buffer management. Efficient utilization of buffering resources in a commodity shared memory buffer switch is key to minimizing packet loss. Efficient utilization of buffering resources is enabled through adaptive queue limits that are derived from an adaptive port limit.
Abstract translation: 一种用于分层自适应动态出口端口和队列缓冲区管理的系统和方法。 在商品共享内存缓冲交换机中高效利用缓冲资源是最大限度地减少数据包丢失的关键。 通过从自适应端口限制导出的自适应队列限制，能够有效利用缓冲资源。
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公开(公告)号：US08437252B2
公开(公告)日：2013-05-07
申请号：US12945699
申请日：2010-11-12
Applicant: Bruce Kwan , Puneet Agarwal
Inventor： Bruce Kwan , Puneet Agarwal
IPC: H04J1/16
CPC classification number: H04L47/10 , H04L47/11 , H04L47/12 , H04L47/2466 , H04L47/26 , H04L47/283 , H04L47/31 , H04L47/33
Abstract: Apparatus and methods for intelligent congestion feedback are disclosed. An example apparatus includes a data interface configured to receive data packets from a source endpoint via an intermediate node. The data packets include a field indicating whether data congestion for data being sent to the destination endpoint is occurring. The example apparatus also includes a timer. The example apparatus further includes a feedback loop interface configured to selectively enable a feedback loop to the source endpoint and to transmit congestion notification (CN) messages to the source endpoint over the feedback loop. Upon receiving a data packet indicating that congestion has occurred due to the data packets from the source endpoint to the destination endpoint, the destination endpoint is configured to set the timer to a preset time value; start the timer reverse counting from the preset time value to zero, enable the feedback loop and transmit the CN messages.
Abstract translation: 公开了用于智能拥塞反馈的装置和方法。 示例性设备包括被配置为经由中间节点从源端点接收数据分组的数据接口。 数据分组包括指示发送到目的地端点的数据的数据拥塞是否发生的字段。 示例性装置还包括定时器。 该示例设备还包括反馈回路接口，其被配置为选择性地启用到源端点的反馈回路并且通过反馈回路向源端点发送拥塞通知（CN）消息。 一旦接收到指示由于从源端点到目的地端点的数据分组发生拥塞而发生拥塞的数据分组，则目的端点被配置为将定时器设置为预设时间值; 启动定时器反向计数从预设时间值到零，启用反馈回路并发送CN消息。
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公开(公告)号：US08391139B2
公开(公告)日：2013-03-05
申请号：US12780555
申请日：2010-05-14
Applicant: Brad Matthews , Bruce Kwan , Puneet Agarwal
Inventor： Brad Matthews , Bruce Kwan , Puneet Agarwal
IPC: H04L12/26
CPC classification number: H04L47/39 , H04L43/026 , H04L45/00 , H04L45/302 , H04L45/745 , H04L47/125 , H04L47/2441 , H04L47/41 , Y02D50/30
Abstract: Methods and apparatus for. An example method includes determining, by a network device, respective quality metrics for each of a plurality of members of an aggregation group of the network device, the respective quality metrics representing respective data traffic loading for each member of the aggregation group. The example method further includes grouping the plurality of aggregation members into a plurality of loading/quality bands based on their respective quality metrics. The example method also includes selecting members of the aggregation group for transmitting packets from a loading/quality band corresponding with members of the aggregation group having lower data traffic loading relative to the other members of the aggregation group.
Abstract translation: 方法和装置。 示例性方法包括由网络设备确定网络设备的聚合组的多个成员中的每一个的相应质量度量，表示聚合组的每个成员的相应数据流量加载的相应质量度量。 该示例方法还包括基于它们各自的质量度量将多个聚合成员分组成多个加载/质量带。 该示例方法还包括选择聚合组的成员，用于从与聚合组的其他成员相对应的具有较低数据流量加载的聚合组的成员相对应的加载/质量带传输分组。
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5.发明授权Method and system for transmission control protocol (TCP) traffic smoothing 有权传输控制协议（TCP）流量平滑的方法和系统
公开(公告)号：US08072886B2
公开(公告)日：2011-12-06
申请号：US12652402
申请日：2010-01-05
Applicant: Bruce Kwan , Puneet Agarwal
Inventor： Bruce Kwan , Puneet Agarwal
IPC: H04J1/16
CPC classification number: H04L47/10 , H04L47/193 , H04L47/22
Abstract: Various aspects of a method and system for transmission control protocol (TCP) traffic smoothing are presented. Traffic smoothing may comprise a method for controlling data transmission in a communications system that further comprises scheduling the timing of transmission of information from a TCP offload engine (TOE) based on a traffic profile. Traffic smoothing may comprise transmitting information from a TOE at a rate that is either greater than, approximately equal to, or less than, the rate at which the information was generated. Some conventional network interface cards (NIC) that utilize TOEs may not provide a mechanism that enables traffic shaping. By not providing a mechanism for traffic shaping, there may be a greater probability of lost packets in the network.
Abstract translation: 提出了传输控制协议（TCP）流量平滑的方法和系统的各个方面。 业务平滑可以包括用于控制通信系统中的数据传输的方法，该方法还包括基于业务简档调度来自TCP卸载引擎（TOE）的信息的传输定时。 业务平滑可以包括以大于等于或小于生成信息速率的速率从TOE发送信息。 使用TOE的一些常规网络接口卡（NIC）可能不提供启用流量整形的机制。 通过不提供用于流量整形的机制，网络中可能存在丢失分组的可能性更大。
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公开(公告)号：US20110051603A1
公开(公告)日：2011-03-03
申请号：US12780555
申请日：2010-05-14
Applicant: Brad Matthews , Bruce Kwan , Puneet Agarwal
Inventor： Brad Matthews , Bruce Kwan , Puneet Agarwal
CPC classification number: H04L47/39 , H04L43/026 , H04L45/00 , H04L45/302 , H04L45/745 , H04L47/125 , H04L47/2441 , H04L47/41 , Y02D50/30
Abstract: Methods and apparatus for. An example method includes determining, by a network device, respective quality metrics for each of a plurality of members of an aggregation group of the network device, the respective quality metrics representing respective data traffic loading for each member of the aggregation group. The example method further includes grouping the plurality of aggregation members into a plurality of loading/quality bands based on their respective quality metrics. The example method also includes selecting members of the aggregation group for transmitting packets from a loading/quality band corresponding with members of the aggregation group having lower data traffic loading relative to the other members of the aggregation group.
Abstract translation: 方法和装置。 示例性方法包括由网络设备确定网络设备的聚合组的多个成员中的每一个的相应质量度量，表示聚合组的每个成员的相应数据流量加载的相应质量度量。 该示例方法还包括基于它们各自的质量度量将多个聚合成员分组成多个加载/质量带。 该示例方法还包括选择聚合组的成员，用于从与聚合组的其他成员相对应的具有较低数据流量加载的聚合组的成员相对应的加载/质量带传输分组。
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公开(公告)号：US08885472B2
公开(公告)日：2014-11-11
申请号：US13523931
申请日：2012-06-15
Applicant: Bruce Kwan , Brad Matthews , Puneet Agarwal
Inventor： Bruce Kwan , Brad Matthews , Puneet Agarwal
IPC: G08C15/00 , H04L12/28 , H04L12/54 , G06F15/16 , G06F15/173 , G06F3/00 , G06F5/00 , H04L12/801 , H04L12/861
CPC classification number: H04L47/10 , H04L12/6418 , H04L49/90
Abstract: The systems and methods described herein allow for the scaling of output-buffered switches by decoupling the data path from the control path. Some embodiment of the invention include a switch with a memory management unit (MMU), in which the MMU enqueues data packets to an egress queue at a rate that is less than the maximum ingress rate of the switch. Other embodiments include switches that employ pre-enqueue work queues, with an arbiter that selects a data packet for forwarding from one of the pre-enqueue work queues to an egress queue.
Abstract translation: 本文描述的系统和方法允许通过将数据路径与控制路径相分离来缩放输出缓冲交换机。 本发明的一些实施例包括具有存储器管理单元（MMU）的交换机，其中MMU以低于交换机的最大进入速率的速率将数据分组排入到出口队列。 其他实施例包括采用预排队工作队列的交换机，仲裁器选择用于从一个入队前工作队列转发到出站队列的数据分组。
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8.发明授权System and method for adjusting an energy efficient ethernet control policy using measured power savings 有权使用测量的功率节省来调整节能以太网控制策略的系统和方法
公开(公告)号：US08732491B2
公开(公告)日：2014-05-20
申请号：US13660041
申请日：2012-10-25
Applicant: Brad Matthews , Puneet Agarwal , Bruce Kwan
Inventor： Brad Matthews , Puneet Agarwal , Bruce Kwan
IPC: H04B7/185
Abstract: A system and method for adjusting an energy efficient Ethernet (EEE) control policy using measured power savings. An EEE-enabled device can be designed to report EEE event data. This reported EEE event data can be used to quantify the actual EEE benefits of the EEE-enabled device, debug the EEE-enabled device, and adjust the EEE control policy.
Abstract translation: 一种使用测量的功率节省来调整节能以太网（EEE）控制策略的系统和方法。 启用EEE的设备可以设计为报告EEE事件数据。 报告的EEE事件数据可用于量化启用EEE的设备的实际EEE优势，调试启用EEE的设备，并调整EEE控制策略。
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公开(公告)号：US20140086262A1
公开(公告)日：2014-03-27
申请号：US13628751
申请日：2012-09-27
Applicant: Brad Matthews , Bruce Kwan , Puneet Agarwal
Inventor： Brad Matthews , Bruce Kwan , Puneet Agarwal
IPC: H04L12/54
CPC classification number: H04L47/621 , H04L49/9047
Abstract: Disclosed are various embodiments that provide an architecture of memory buffers for a network component configured to process packets. A network component may receive a packet, the packet being associated with a control structure and packet data, an input port set and an output port set. The network component determines one of a plurality of control structure memory partitions for writing the control structure, the one of the plurality of control structure memory partitions being determined based at least upon the input port set and the output port set; and determines one of a plurality of packet data memory partitions for writing the packet data, the one of the plurality of packet data memory partitions being determined independently of the input port set.
Abstract translation: 公开了提供用于处理分组的网络组件的存储器缓冲器的架构的各种实施例。 网络组件可以接收分组，分组与控制结构和分组数据相关联，输入端口集合和输出端口集合。 网络组件确定用于写入控制结构的多个控制结构存储器分区之一，至少基于输入端口组和输出端口组确定多个控制结构存储器分区中的一个; 并且确定用于写入分组数据的多个分组数据存储器分区中的一个，所述多个分组数据存储器分区之一独立于所述输入端口集合来确定。
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公开(公告)号：US20130336332A1
公开(公告)日：2013-12-19
申请号：US13523931
申请日：2012-06-15
Applicant: Bruce Kwan , Brad Matthews , Puneet Agarwal
Inventor： Bruce Kwan , Brad Matthews , Puneet Agarwal
IPC: H04L12/56
CPC classification number: H04L47/10 , H04L12/6418 , H04L49/90
Abstract: The systems and methods described herein allow for the scaling of output-buffered switches by decoupling the data path from the control path. Some embodiment of the invention include a switch with a memory management unit (MMU), in which the MMU enqueues data packets to an egress queue at a rate that is less than the maximum ingress rate of the switch. Other embodiments include switches that employ pre-enqueue work queues, with an arbiter that selects a data packet for forwarding from one of the pre-enqueue work queues to an egress queue.
Abstract translation: 本文描述的系统和方法允许通过将数据路径与控制路径相分离来缩放输出缓冲交换机。 本发明的一些实施例包括具有存储器管理单元（MMU）的交换机，其中MMU以低于交换机的最大进入速率的速率将数据分组排入到出口队列。 其他实施例包括采用预排队工作队列的交换机，仲裁器选择用于从一个入队前工作队列转发到出站队列的数据分组。
