CN113711173A - 促进网络接口控制器(nic)中的数据请求管理的系统和方法 - Google Patents

促进网络接口控制器(nic)中的数据请求管理的系统和方法 Download PDF

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Publication number
CN113711173A
CN113711173A CN202080029462.XA CN202080029462A CN113711173A CN 113711173 A CN113711173 A CN 113711173A CN 202080029462 A CN202080029462 A CN 202080029462A CN 113711173 A CN113711173 A CN 113711173A
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China
Prior art keywords
command
response
network interface
mcu
interface controller
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CN202080029462.XA
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Inventor
A·M·巴塔耶纳
T·L·科特
D·C·休森
T·J·约翰逊
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Hewlett Packard Enterprise Development LP
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Hewlett Packard Enterprise Development LP
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Abstract

提供了一种能够促进高效数据请求管理的网络接口控制器(NIC)。NIC可以配备有命令队列、消息切分单元(MCU)和流量管理逻辑块。在操作期间，命令队列可以存储通过主机接口发出的命令。然后，MCU可以确定命令的类型和命令的响应的长度。如果命令是数据请求，流量管理逻辑块可以确定响应的长度是否在阈值内。如果长度超过阈值，则流量管理逻辑块可以对命令进行速度调整使得响应在阈值内。

Description

促进网络接口控制器(NIC)中的数据请求管理的系统和方法
发明人：Abdulla M.Bataineh(A·M·巴塔耶纳)、Thomas L.Court(T·L·科特)、David Charles Hewson(D·C·休森)及Timothy J.Johnson(T·J·约翰逊)
背景
技术领域
本公开总体上涉及联网技术领域。更具体地，本公开涉及用于促进具有高效数据请求管理的网络接口控制器(NIC)的系统和方法。
相关技术
随着支持网络的设备和应用变得越来越普遍，各种类型的流量以及不断增加的网络负载继续对底层网络架构提出更多的性能要求。例如，诸如高性能计算(HPC)、媒体流化和物联网(IoT)的应用可以生成具有独特特性的不同类型的流量。因此，除了常规网络性能指标(诸如带宽和延迟)之外，网络架构还继续面临诸如可扩展性、通用性和效率的挑战。
发明内容
提供了一种能够促进高效数据请求管理的网络接口控制器(NIC)。NIC可以配备有命令队列、消息切分单元(MCU)和流量管理逻辑块。在操作期间，命令队列可以存储通过主机接口发出的命令。然后，MCU可以确定命令的类型，并根据该命令生成一组请求数据包。对于相应的请求数据包，MCU可以确定请求数据包的响应(例如，响应数据包)的长度。如果命令是数据请求，流量管理逻辑块可以确定响应的长度是否在阈值内。如果长度超过阈值，则流量管理逻辑块可以对命令进行速度调整(pace)使得响应在阈值内。
附图说明
图1示出了示例性网络。
图2A示出了具有多个NIC的示例性NIC芯片。
图2B示出了NIC的示例性架构。
图3示出了NIC中的示例性高效数据请求管理。
图4A示出了NIC中的示例性数据请求节流过程的流程图。
图4B示出了用于促进NIC中数据请求节流的示例性仲裁过程的流程图。
图5示出了配备有促进高效数据请求管理的NIC的示例性计算机系统。
在附图中，相同的附图标记表示相同的附图元素。
具体实施方式
对所公开的实施例的各种修改对于本领域技术人员来说将是显而易见的，并且在不脱离本公开的精神和范围的情况下，本文定义的一般原理可以应用于其他实施例和应用。因此，本发明不限于所示的实施例。
概述
本公开描述了促进网络接口控制器(NIC)中的高效数据请求管理的系统和方法。NIC允许主机与数据驱动的网络进行通信。
本文描述的实施例通过(i)在NIC中识别数据请求并确定相对应的响应的大小，以及(ii)在需要的情况下，在NIC处对请求的速率进行节流以将相对应的响应的速率限制在阈值内，来解决由数据请求和响应的相应大小方面的差异引起的网络拥塞的问题。
在操作期间，可以在发起方计算设备上运行的用户过程可以生成数据请求(例如，远程直接存储器访问(RDMA)的“GET”命令)，并将该请求插入到NIC的命令队列中。该过程可以通知NIC关于插入的情况，例如通过更新写入指针。NIC可以获取请求并发起请求的转发(例如，在消息或数据包中)。然而，NIC可以以比相对应的响应被返回的速率更高的速率处理和转发请求。例如，请求在大小方面可以相对较小(例如，48字节长)，而相对应的响应在大小方面可以显著较大(例如，2048字节长)。
因此，请求可能需要NIC的1个时钟周期来发出，但响应消息可能需要NIC的50个时钟周期来将响应数据写入到NIC的主机设备的存储器中。因此，请求和相对应的响应之间在大小和处理时间方面可能存在1：50的差异。如果NIC继续在每个时钟周期发出请求，则当响应返回时，由于响应的显著较大的大小，网络中可能存在拥塞。特别地，如果NIC继续接收大量数据，则相对应的反向压力可能导致网络中的显著拥塞。响应越大，输入队列可能变得越拥塞。
为了解决这个问题，NIC可以配备请求管理系统，该请求管理系统可以检查从命令队列中获得的相应命令，以确定该命令是否是数据请求。如果命令是数据请求(例如，GET命令)，则NIC可以基于所请求的数据的量确定相对应的响应的大小。然后，NIC可以确定可能由响应生成的潜在进入数据速率。随后，NIC确定潜在进入数据速率是否在阈值内。在一些实施例中，可以基于NIC能够吸收响应的速率来设置阈值。以这样的方式，允许发出请求的速率由NIC控制为使得该速率与NIC能够吸收响应的带宽相匹配。
本发明的一个实施例提供了NIC。NIC可以配备有命令队列、消息切分单元(MCU)和流量管理逻辑块。在操作期间，命令队列存储通过主机接口发出的命令。然后，MCU可以确定命令的类型，并根据该命令生成一组请求数据包。对于相应的请求数据包，MCU可以确定请求数据包的响应(例如，响应数据包)的长度。如果命令是数据请求，流量管理逻辑块确定响应的长度是否在阈值内。如果长度超过阈值，则流量管理逻辑块对命令进行速度调整使得响应在阈值内。
在关于这个实施例的变型中，数据请求可以是远程直接存储器访问(RDMA)GET命令。
在关于这个实施例的变型中，MCU可以将数据请求划分成一系列子请求，并将相应的子请求包括在请求数据包中。流量整形逻辑块然后可以独立地管理相应的子请求。
在关于这个实施例的变型中，MCU可以生成与命令相关联的数据包。NIC还可以包括将数据包转发到交换机结构的网络接口。
在关于这个实施例的变型中，MCU可以是驻留在NIC上的多个MCU中的一个。流量管理逻辑块然后可以在多个MCU之间进行仲裁，以选择用于转发命令的MCU。
在另外的变型中，流量管理逻辑块可以通过选择多个MCU中的用于转发第二命令的第二MCU、并响应于命令的响应的长度落入阈值内来选择用于转发命令的MCU，来对命令进行速度调整。
在另外的变型中，NIC还可以包括多个流队列。相应的流队列可以对应于NIC中的唯一的流。另外，可以将相应的流队列分配给多个MCU单元中的MCU单元。
在关于这个实施例的变型中，阈值可以对应于NIC能够处理响应的速率。以这样的方式，NIC可以以与NIC能够处理响应的速率相匹配的速率发出命令。
在本公开中，结合图1的描述与网络架构相关联，并且结合图2A及其后的描述提供了关于与支持高效数据请求管理的NIC相关联的架构和操作的更多细节。
在本公开中，数据包流量也可以被称为“数据包流”，或者简称为“流”。由流所经过的数据路径连同由交换机维护的其配置信息可以被称为“流通道”。而且，术语“缓冲器”和“队列”在本公开中可互换使用。
图1示出了促进流通道的示例性网络。在这个示例中，交换机的网络100(其也可以称为“交换机结构”)可以包括交换机102、104、106、108和110。主机设备114和116可以分别配备NIC 124和126。如果主机设备114发出命令，并且主机设备116是该命令的目标方，则NIC 124和126可以分别被称为源NIC和目标NIC。
示例性NIC架构
图2A示出了具有多个NIC的示例性NIC芯片。参考图1中的示例，NIC芯片200可以是针对主机116设计以与交换机结构100一起工作的定制专用集成电路(ASIC)。在这个示例中，芯片200可以提供两个独立的NIC 202和204。芯片200的相应NIC可以配备有主机接口(HI)(例如，用于连接到主机处理器的接口)和一个高速网络接口(HNI)，用于与耦接到图1的交换机结构100的链路通信。例如，NIC 202可以包括HI210和HNI 220，并且NIC 204可以包括HI 211和HNI 221。
在一些实施例中，HI 210可以是外围组件互连(PCI)或快速外围组件互连(PCIe)接口。HI 210可以通过主机连接201耦接到主机，该主机连接可以包括能够以高达每通道25Gbps的信令速率操作的N个(例如，在一些芯片中，N可以是16)PCIe Gen 4通道。HNI 210可以促进高速网络连接203，该高速网络连接可以与图1的交换机结构100中的链路通信。HNI 210可以使用M个(例如，在某些芯片中M可以是4)全双工串行通道以100Gbps或200Gbps的聚合速率操作。M个通道中的每一个可以分别基于非归零(NRZ)调制或脉冲振幅调制4(PAM4)以25Gbps或50Gbps操作。HNI 220可以支持电气和电子工程师协会(IEEE)802.3基于以太网的协议，以及支持更高速率的小消息的增强帧格式。
NIC 202可以支持以下中的一个或多个：基于消息传递接口(MPI)的点对点消息传递、远程存储器访问(RMA)操作、批量数据集合操作的卸载和进度、以及以太网数据包处理。当主机发出MPI消息时，NIC 202可以匹配相对应的消息类型。另外，NIC 202可以为MPI实施紧迫协议和约定协议，从而从主机卸载相对应的操作。
另外，由NIC 202支持的RMA操作可以包括PUT、GET和原子存储器操作(AMO)。NIC202可以提供可靠的运输。例如，如果NIC 202是源NIC，则NIC 202可以为幂等性操作提供重试机制。另外，基于连接的错误检测和重试机制可以用于可能操纵目标状态的有序操作。NIC 202的硬件可以保持重试机制所需的状态。以这样的方式，NIC 202可以消除来自主机(例如软件)的负担。规定重试机制的策略可以由主机通过驱动软件指定，从而确保NIC 202中的灵活性。
另外，NIC 202可以促进触发操作、用于卸载的通用机制以及依赖性操作序列(诸如批量数据集合)的进度。NIC 202可以支持促进由图1的交换机结构100向主机116上运行的应用提供结构通信服务的应用编程接口(API)(例如，libfabric API)。NIC 202还可以支持低级网络编程接口，诸如Portals API。此外，NIC 202可以提供高效的以太网数据包处理，这在NIC 202是发送方的情况下可以包括高效传输、在NIC 202是目标方的情况下包括流引导、以及校验和计算。而且，NIC 202可以支持虚拟化(例如，使用容器或虚拟机)。
图2B示出了NIC的示例性架构。在NIC 202中，HNI 220的端口宏可以促进低级以太网操作，诸如物理编码子层(PCS)和媒体访问控制(MAC)。此外，NIC 202可以支持链路层重试(LLR)。进入的数据包可以由解析器228解析并存储在缓冲器229中。缓冲器229可以是被提供用于缓冲阈值量(例如，1微秒)的延迟带宽的PFC缓冲器。HNI220还可以包括分别用于管理出来的和进入的数据包的控制发送单元224和控制接收单元226。
NIC 202可以包括命令队列(CQ)单元230。CQ单元230可以负责获取和发布主机侧命令。CQ单元230可以包括命令队列232和调度器234。命令队列232可以包括分别用于发起者命令(PUT、GET等)和目标命令(Append、Search等)的两个独立组的队列。命令队列232可以被实施为在NIC 202的存储器中维护的循环缓冲器。运行在主机上的应用可以直接写入命令队列232。调度器234可以包括分别用于发起者命令和目标命令的两个分离的调度器。基于散列函数，发起者命令被分类到流队列236中。流队列236中的一个可以被分配给唯一的流。另外，CQ单元230还可以包括负责排队和分派所触发的命令的触发操作模块(或逻辑块)238。
出站传送引擎(OXE)240可以从流队列236中拉取命令，以便处理它们以进行分派。OXE 240可以包括地址转换请求单元(ATRU)244，该地址转换请求单元可以向地址转换单元(ATU)212发送地址转换请求。ATU 212可以代表不同的引擎(诸如OXE240、入站传送引擎(IXE)250和事件引擎(EE)216)提供虚拟到物理地址转换。ATU212可以保持大的转换高速缓存214。ATU 212既可以自己执行转换，也可以使用基于主机的地址转换服务(ATS)。OXE 240还可以包括消息切分单元(MCU)246，该消息切分单元可以将大的消息分割成对应于最大传输单元(MTU)的大小的数据包。MCU 246可以包括多个MCU模块。当MCU模块变得可用时，MCU模块可以从所分配的流队列中获得下一命令。所接收的数据可以被写入到数据缓冲器242中。然后，MCU模块可以向流量整形器248发送数据包报头、相对应的流量类别和数据包大小。整形器248可以确定由MCU 246呈现的哪些请求可以前进到网络。
随后，所选择的数据包可以被发送到数据包和连接跟踪(PCT)270。PCT 270可以将数据包存储在队列274中。PCT 270还可以保持用于出站命令的状态信息，并在返回响应时更新状态信息。PCT 270还可以保持数据包状态信息(例如，允许响应与请求相匹配)、消息状态信息(例如，跟踪多数据包消息的进度)、发起者完成状态信息和重试状态信息(例如，保持如果请求或响应丢失的情况下重试命令所需的信息)。如果在阈值时间内没有返回响应，则相对应的命令可以存储在重试缓冲器272中。PCT 270可以分别基于源表276和目标表278促进用于发起者和目标命令的连接管理。例如，PCT 270可以更新其源表276，以跟踪可靠递送数据包和消息完成通知的必要状态。PCT 270可以将出站数据包转发到HNI 220，该HNI 220将数据包存储在出站队列222中。
NIC 202还可以包括IXE 250，如果NIC 202是目标或目的地，则该IXE 250提供数据包处理。IXE 250可以从HNI 220获得输入数据包。解析器256可以解析进入的数据包，并将相对应的数据包信息传递给列表处理引擎(LPE)264或消息状态表(MST)266以便进行匹配。LPE 264可以将进入的消息匹配到缓冲器。LPE 264可以确定每个消息要使用的缓冲器和起始地址。LPE 264还可以管理用于表示缓冲器和意外消息的列表条目262的池。MST 266可以存储匹配结果和生成目标侧完成事件所需的信息。MST 266可以被不受限制的操作使用，包括多数据包PUT命令以及单数据包和多数据包GET命令。
随后，解析器256可以将数据包存储在数据包缓冲器254中。IXE 250可以获得用于冲突检查的匹配结果。然后，DMA写入和AMO模块252可以向存储器发出由写入和AMO操作生成的更新。如果数据包包括生成目标侧存储器读取操作的命令(例如，GET响应)，则该数据包可以被传递到OXE 240。NIC 202还可以包括EE 216，该EE 216可以从NIC 202中的其他模块或单元接收生成事件通知的请求。事件通知可以指定生成填充事件或计数事件。EE 216可以管理位于主机处理器存储器内的事件队列，它将完整的事件写入该队列。EE 216可以将计数事件转发给CQ单元230。
NIC中的请求管理
图3示出了NIC中的示例性高效数据请求管理。如果主机过程生成数据请求，诸如GET命令，则该过程可以将该请求写入命令队列232中的一个。该过程可以通过更新命令队列232的写入指针来通知NIC 202关于插入的情况。NIC 202可以获取该请求并发起转发该请求。然而，NIC 202可能以比相对应的响应被返回的速率更高的速率处理和转发请求。例如，请求可能需要NIC 202的1个时钟周期来发出，但是响应消息可能需要NIC 202的50个时钟周期来获得所请求的数据。因此，请求和相对应的响应之间在大小和处理时间方面可能存在1：50的差异。如果NIC 202继续在每个时钟周期发出请求，则当响应返回时，由于响应的显著较大的大小，可能存在拥塞。
为了解决这个问题，OXE 240可以检查从命令队列232获得的相应命令(诸如请求312)，以确定请求312是否是数据请求。在一些实施例中，OXE 240可以执行深度数据包检查(例如，通过检查请求312的有效载荷内的内部报头)来确定请求312的命令类型。NIC 202也可以基于MPI匹配来确定类型。在确定请求312是数据请求时，OXE 240可以基于由请求312请求的数据量来确定相对应的响应的大小。然后，OXE 240可以确定可能由响应生成的潜在进入数据速率。随后，OXE 240可以确定潜在进入数据速率是否在阈值内。在一些实施例中，可以基于NIC 202能够吸收或处理响应的速率来设置阈值。
可以基于与请求312相关联的流，将请求312分配给流队列236中的流队列320。OXE240可以从流队列320获得请求312，并将请求312提供给已经被分配给流队列320的MCU模块302(例如，在MCU 246中)。类似地，OXE 240可以从相应的流队列获得请求314和316，并将请求312分别提供给MCU模块304和306。应当注意的是，MCU 246可以包括多个MCU模块，该多个模块中的每一个可以对应于流队列236中的流队列。
MCU模块302可以保持未完成数据包(诸如与请求312相关联的数据包)的OrdPktActive计数。MCU模块302可以在为消息构造数据包时使OrdPktActive计数递增，并且在MCU模块302观察到由PCT 270处理的响应时使该计数递减。当OrdPktActive计数超过寄存器中定义的阈值时，MCU模块302可以停止请求数据包的生成。阈值可以指示适当的限制。由于对请求的速率进行节流依赖于相应请求的预期响应长度，所以MCU模块302可以确定用于请求312的、指示响应数据包长度的RspPktLen值。MCU模块302可以基于请求312的有效载荷(例如，所请求的数据的量)来计算RspPktLen。
在一些实施例中，流量整形器248可以确定从MCU 246中的哪个MCU模块获取要发送的下一数据包。流量整形器248可以基于来自链路伙伴的优先级流控制、不同流量整形类别之间的带宽共享、以及类别内的MCU模块之间的带宽共享，来选择MCU模块。通过在MCU模块之间进行仲裁，流量整形器248可以对请求数据包进行节流(或定速)，以匹配相对应的响应的预期速率。以这样的方式，流量整形器248可以管理由主机上运行的应用所利用的出站和入站带宽。由于应用可以使用数据传送(例如，PUT命令)和数据请求(例如，GET命令)的组合来执行批量数据传输，所以流量整形器248可以将PUT请求和GET响应分类为消耗用于出站数据包的带宽，并且可以将这些的总和分配给带宽策略。
在这个示例中，流量整形器248可以分别从MCU模块302、304和306获得请求312、314和316的相应OrdPktActive和RspPktLen。流量整形器248可以确定对请求312的响应在阈值内。因此，流量整形器248可以基于仲裁来选择MCU模块302、获得请求312、并将请求312放置在输出缓冲器242中以便进行转发。然而，流量整形器248可以确定对请求314的响应可以超过阈值。因此，流量整形器248可以基于仲裁跳过MCU模块304，从而避免选择用于进行转发的MCU模块304。
随后，流量整形器248可以确定对请求316的响应在阈值内。流量整形器248然后可以基于仲裁来选择MCU模块306、获得请求316、并将请求316放置在输出缓冲器242中。当对请求314的响应长度落入基于仲裁过程的阈值内时，流量整形器248可以选择用于转发请求314的MCU模块304。以这样的方式，MCU模块302、304和306可以处理请求，诸如GET命令，并且流量整形器248在MCU模块302、304和306之间进行仲裁的情况下对它们进行速度调整。由于MCU模块提供请求，通过对MCU模块进行速度调整，流量整形器248可以对请求进行速度调整。
图4A示出了NIC中的示例性数据请求节流过程的流程图。在操作期间，NIC的OXE可以从流队列获得命令(操作402)。OXE然后可以确定命令的类型(操作404)并检查该命令是否是数据请求(例如GET命令)(操作406)。随后，OXE可以确定数据请求的响应大小(操作408)并确定数据请求的响应长度是否在阈值内(操作410)。在一些实施例中，OXE中的MCU模块可以为命令计算RspPktLen，并将RspPktLen提供给数据包整形器，该数据包整形器又可以确定响应长度是否在阈值内。如果响应长度在阈值内，则OXE可以对数据请求进行速度调整(例如，通过对数据请求的传输速率进行节流)(操作412)。另一方面，如果响应长度在阈值内，OXE可以提供数据请求用于进行跟踪和转发(操作414)。
图4B示出了用于促进NIC中数据请求节流的示例性仲裁过程的流程图。在操作期间，NIC的流量整形器确定MCU模块中数据请求的存在(操作452)。在一些实施例中，MCU模块可以向流量整形器提供与数据请求相关联的信息，诸如RspPktLen，从而向流量整形器通知关于数据请求的存在。流量整形器然后可以基于响应长度来确定数据请求是否需要速度调整(操作454)。如果不需要速度调整，则流量整形器可以选择用于进行转发的MCU模块(操作456)。然而，如果数据请求需要速度调整，则流量整形器可以避免选择用于进行转发的MCU模块(操作458)，并继续对后续MCU模块进行仲裁(操作460)。可以根据NIC的仲裁策略选择后续的MCU模块。仲裁策略的示例包括但不限于循环(round bin)选择、基于负载的选择、基于优先级的选择和基于可用性的选择。
示例性计算设备
图5示出了配备有促进高效数据请求管理的NIC的示例性计算机系统。计算机系统550包括处理器552、存储器设备554和存储设备556。存储器设备554可以包括易失性存储器设备(例如，双列直插式存储器模块(DIMM))。另外，计算机系统550可以耦接到键盘562、定点设备564和显示设备566。存储设备556可以存储操作系统570。应用572可以在操作系统570上操作。
计算机系统550可以配备有耦接NIC 520的主机接口，该NIC 520有助于有效的数据请求管理。NIC 520可以向计算机系统550提供一个或多个HNI。NIC 520可以通过NIC中的一个耦接到交换机502。如结合图2B所述，NIC 520可以包括OXE逻辑块530。OXE逻辑块530可以包括可以获得命令(诸如GET或PUT命令)的MCU逻辑块532。该命令可以由应用572经由主机接口发出。MCU逻辑块532可以确定命令的类型和命令的响应的长度。MCU逻辑块532可以将这些信息片段提供给OXE逻辑块530的流量整形逻辑块534。流量整形逻辑块534还可以包括速度调整逻辑块536和仲裁逻辑块538。速度调整逻辑块536可以基于命令的类型和命令的响应的长度来确定命令是否需要速度调整。仲裁逻辑块538可以在MCU逻辑块532的一组MCU之间进行仲裁。如果命令需要速度调整，则仲裁逻辑块538可以避免选择相对应的MCU，从而对NIC 520中的数据请求进行速度调整。
总之，本公开描述了一种促进高效数据请求管理的NIC。NIC可以驻留在计算机系统中，该计算机系统还可以包括处理器、存储器设备和被配置为耦接NIC的主机接口。NIC可以配备有命令队列、MCU和流量管理逻辑块。在操作期间，命令队列存储通过主机接口发出的命令。然后，MCU可以确定命令的类型和命令的响应的长度。如果命令是数据请求，流量管理逻辑块确定响应的长度是否在阈值内。如果长度超过阈值，则流量管理逻辑块对命令进行速度调整使得响应在阈值内。
以上描述的方法和过程可以由硬件逻辑块、模块、逻辑块或装置来执行。硬件逻辑块、模块或装置可以包括但不限于专用集成电路(ASIC)芯片、场可编程门阵列(FPGA)、在特定时间执行代码条的专用或共享处理器以及现在已知或以后开发的其他可编程逻辑器件。当硬件逻辑块、模块或装置被激活时，它们执行包含在它们中的方法和过程。
本文描述的方法和过程也可以实现为代码或数据，该代码或数据可以存储在存储设备或计算机可读存储介质中。当处理器读取并执行所存储的代码或数据时，处理器可以执行这些方法和过程。
对本发明的实施例的前述描述仅出于说明和描述的目的而呈现。它们并不旨在是穷举性或将本发明限制于所公开的形式。因此，许多修改和变化对于本领域技术人员来说是显而易见的。附加地，以上公开并不旨在限制本发明。本发明的范围由所附权利要求限定。

Claims (20)

1.一种网络接口控制器(NIC)，包括：
命令队列，用于存储经由主机接口发出的命令；
消息切分单元(MCU)，用于确定所述命令的类型和所述命令的响应的长度；以及
流量整形逻辑块，用于：
响应于所述命令是数据请求，确定所述响应的长度是否在阈值内；以及
响应于所述长度超过所述阈值，对所述命令进行速度调整，使得所述响应在所述阈值内。
2.根据权利要求1所述的网络接口控制器，其中所述数据请求是远程直接存储器访问(RDMA)GET命令。
3.根据权利要求1所述的网络接口控制器，其中所述MCU还用于：
将所述数据请求划分成一系列子请求；以及
将相应的子请求包括在请求数据包中；以及
其中所述流量整形逻辑块还用于独立地管理相应的子请求。
4.根据权利要求1所述的网络接口控制器，其中所述MCU还用于生成与所述命令相关联的数据包；以及
其中所述网络接口控制器还包括用于将所述数据包转发到交换机结构的网络接口。
5.根据权利要求1所述的网络接口控制器，其中所述MCU是驻留在所述网络接口控制器上的多个MCU中的一个；以及
其中所述流量整形逻辑块还用于在所述多个MCU之间进行仲裁，以选择用于转发所述命令的所述MCU。
6.根据权利要求5所述的网络接口控制器，其中所述流量整形逻辑块用于通过以下方式对所述命令进行速度调整：
选择所述多个MCU中的用于转发第二命令的第二MCU；以及
响应于所述命令的所述响应的长度落入所述阈值内来选择用于转发所述命令的所述MCU。
7.根据权利要求5所述的网络接口控制器，其中所述NIC还包括多个流队列，其中相应的流队列对应于所述网络接口控制器中的唯一的流；以及
其中相应的流队列被分配给所述多个MCU中的MCU。
8.根据权利要求1所述的网络接口控制器，其中所述阈值对应于所述网络接口控制器能够处理响应的速率，从而以与所述网络接口控制器能够处理响应的速率相匹配的速率发出命令。
9.一种方法，包括：
在网络接口控制器(NIC)的命令队列中存储经由主机接口发出的命令，所述主机接口将所述网络接口控制器耦接到主机设备；
由所述网络接口控制器确定所述命令的类型和所述命令的响应的长度；
响应于所述命令是数据请求，确定所述响应的长度是否在阈值内；以及
响应于所述长度超过所述阈值，对所述命令进行速度调整，使得所述响应在所述阈值内。
10.根据权利要求9所述的方法，其中所述数据请求是远程直接存储器访问(RDMA)GET命令。
11.根据权利要求9所述的方法，还包括：
将所述数据请求划分成一系列子请求；
将相应的子请求包括在请求数据包中；以及
独立地管理相应的子请求。
12.根据权利要求9所述的方法，还包括：
生成与所述命令相关联的数据包；以及
将所述数据包转发到交换机结构。
13.根据权利要求9所述的方法，其中所述网络接口控制器包括多个消息切分单元(MCU)；并且
其中所述方法还包括在所述多个MCU之间进行仲裁，以选择用于转发所述命令的MCU。
14.根据权利要求13所述的方法，其中对所述命令进行速度调整还包括：
选择所述多个MCU中的用于转发第二命令的第二MCU；以及
响应于所述命令的所述响应的长度落入所述阈值内来选择用于转发所述命令的所述MCU。
15.根据权利要求13所述的方法，其中所述网络接口控制器还包括多个流队列，其中相应的流队列对应于所述网络接口控制器中的唯一的流；以及
其中相应的流队列被分配给所述多个MCU中的MCU。
16.根据权利要求9所述的方法，其中所述阈值对应于所述网络接口控制器能够处理响应的速率，从而以与所述网络接口控制器能够处理响应的速率相匹配的速率发出命令。
17.一种计算机系统，包括：
处理器；
网络接口控制器(NIC)；以及
主机接口，用于耦接所述NIC；
其中，所述NIC包括：
命令队列，用于存储经由所述主机接口发出的命令；
消息切分单元(MCU)，用于确定所述命令的类型和所述命令的响应的长度；以及
流量整形逻辑块，用于：
响应于所述命令是数据请求，确定所述响应的长度是否在阈值内；以及
响应于所述长度超过所述阈值，对所述命令进行速度调整，使得所述响应在所述阈值内。
18.根据权利要求17所述的计算机系统，其中所述MCU还用于：
将所述数据请求划分成一系列子请求；以及
将相应的子请求包括在请求数据包中；以及
其中所述流量整形逻辑块还独立地管理相应的子请求。
19.根据权利要求17所述的计算机系统，其中所述MCU是驻留在所述网络接口控制器上的多个MCU中的一个；以及
其中所述流量整形逻辑块还用于在所述多个MCU之间进行仲裁，以选择用于转发所述命令的MCU。
20.根据权利要求19所述的计算机系统，其中所述流量整形逻辑块用于通过以下方式对所述命令进行速度调整：
选择所述多个MCU中的用于转发第二命令的第二MCU；以及
响应于所述命令的所述响应的长度落入所述阈值内来选择用于转发所述命令的所述MCU。
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CN202080030421.2A Pending CN113785536A (zh) 2019-05-23 2020-03-23 用于在数据驱动的智能网络中促进跟踪器分组的系统和方法
CN202080031355.0A Pending CN114073054A (zh) 2019-05-23 2020-03-23 促进采用基于逐流信用的流控制的数据驱动智能网络的系统和方法
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Country Status (5)

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Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020236275A1 (en) 2019-05-23 2020-11-26 Cray Inc. System and method for facilitating dynamic command management in a network interface controller (nic)
WO2021016410A1 (en) * 2019-07-25 2021-01-28 Maxlinear, Inc. Multiple ports with different baud rate over a single serdes
CN112511323B (zh) * 2019-09-16 2022-06-14 华为技术有限公司 处理网络拥塞的方法和相关装置
US11240151B2 (en) 2019-12-10 2022-02-01 Juniper Networks, Inc. Combined input and output queue for packet forwarding in network devices
WO2021214847A1 (ja) * 2020-04-21 2021-10-28 日本電信電話株式会社 ネットワーク設定装置、方法及びプログラム
US11693800B2 (en) * 2020-07-13 2023-07-04 EMC IP Holding Company LLC Managing IO path bandwidth
US11737021B2 (en) * 2020-08-28 2023-08-22 Qualcomm Incorporated Low-latency enhancements for a wireless network
US11444860B2 (en) * 2020-09-24 2022-09-13 Cisco Technology, Inc. Automating and extending path tracing through wireless links
DE102021121105A1 (de) * 2020-09-28 2022-03-31 Samsung Electronics Co., Ltd. Intelligente ablagespeichervorrichtung
US20210281618A1 (en) * 2020-11-12 2021-09-09 Intel Corporation System, apparatus, and method for streaming input/output data
US20220166718A1 (en) * 2020-11-23 2022-05-26 Pensando Systems Inc. Systems and methods to prevent packet reordering when establishing a flow entry
GB2601732A (en) * 2020-11-25 2022-06-15 Metaswitch Networks Ltd Packet processing
US20210149821A1 (en) * 2020-12-23 2021-05-20 Intel Corporation Address translation technologies
WO2022146507A1 (en) * 2020-12-30 2022-07-07 Arris Enterprises Llc System to dynamically detect and enhance classifiers for low latency traffic
WO2022174444A1 (zh) * 2021-02-22 2022-08-25 华为技术有限公司 一种数据流传输方法、装置及网络设备
US20220358002A1 (en) * 2021-05-04 2022-11-10 Xilinx, Inc. Network attached mpi processing architecture in smartnics
US20220385587A1 (en) * 2021-05-25 2022-12-01 Google Llc Acknowledgement Coalescing Module Utilized In Content Addressable Memory (CAM) Based Hardware Architecture For Data Center Networking
US11870682B2 (en) 2021-06-22 2024-01-09 Mellanox Technologies, Ltd. Deadlock-free local rerouting for handling multiple local link failures in hierarchical network topologies
US11637778B2 (en) 2021-06-25 2023-04-25 Cornelis Newtorks, Inc. Filter with engineered damping for load-balanced fine-grained adaptive routing in high-performance system interconnect
US11677672B2 (en) * 2021-06-25 2023-06-13 Cornelis Newtorks, Inc. Telemetry-based load-balanced fine-grained adaptive routing in high-performance system interconnect
US11714765B2 (en) * 2021-07-23 2023-08-01 Hewlett Packard Enterprise Development Lp System and method for implementing a network-interface-based allreduce operation
US11665113B2 (en) * 2021-07-28 2023-05-30 Hewlett Packard Enterprise Development Lp System and method for facilitating dynamic triggered operation management in a network interface controller (NIC)
US11729099B2 (en) * 2021-07-30 2023-08-15 Avago Technologies International Sales Pte. Limited Scalable E2E network architecture and components to support low latency and high throughput
WO2023027693A1 (en) * 2021-08-24 2023-03-02 Zeku, Inc. Serializer / deserializer forward flow control
US11824791B2 (en) * 2021-09-08 2023-11-21 Nvidia Corporation Virtual channel starvation-free arbitration for switches
US11722437B2 (en) * 2021-09-14 2023-08-08 Netscout Systems, Inc. Configuration of a scalable IP network implementation of a switch stack
CN113630331B (zh) * 2021-10-11 2021-12-28 北京金睛云华科技有限公司 全流量存储回溯分析系统中父子连接的处理方法
US11968115B2 (en) * 2021-10-31 2024-04-23 Avago Technologies International Sales Pte. Limited Method for verifying data center network performance
US20230153249A1 (en) * 2021-11-18 2023-05-18 Ati Technologies Ulc Hardware translation request retry mechanism
EP4187868A1 (en) * 2021-11-24 2023-05-31 INTEL Corporation Load balancing and networking policy performance by a packet processing pipeline
US11765103B2 (en) * 2021-12-01 2023-09-19 Mellanox Technologies, Ltd. Large-scale network with high port utilization
US11985067B2 (en) * 2021-12-10 2024-05-14 Nokia Solutions And Networks Oy Flowlet switching using memory instructions
CN114401226B (zh) * 2022-02-21 2024-02-27 李超 一种流媒体数据的路由流量控制方法及系统
WO2023177704A1 (en) * 2022-03-16 2023-09-21 F5, Inc. Multi-destination dma for packet broadcast
US20230318969A1 (en) * 2022-03-31 2023-10-05 Lenovo (United States) Inc. Optimizing network load in multicast communications
CN117014376A (zh) * 2022-04-28 2023-11-07 华为技术有限公司 拥塞流识别方法、装置、设备及计算机可读存储介质
US20230385138A1 (en) * 2022-05-25 2023-11-30 Meta Platforms, Inc. Chip-to-chip interconnect with a layered communication architecture
US11799929B1 (en) * 2022-05-27 2023-10-24 Hewlett Packard Enterprise Development Lp Efficient multicast control traffic management for service discovery
CN115622933A (zh) * 2022-09-07 2023-01-17 天翼数字生活科技有限公司 一种路由分发方法、装置和设备
US20240094910A1 (en) * 2022-09-19 2024-03-21 Microsoft Technology Licensing, Llc Round Robin Arbitration Using Random Access Memory
CN116662016B (zh) * 2023-07-25 2023-10-20 太平金融科技服务（上海）有限公司 端口切换方法、装置、计算机设备、存储介质和程序产品
CN117061423B (zh) * 2023-10-09 2024-01-23 苏州元脑智能科技有限公司 一种胖树网络的多机路由方法、装置、系统及存储介质

Family Cites Families (563)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4807118A (en) 1987-01-14 1989-02-21 Hewlett-Packard Company Method for handling slot requests over a network
US5138615A (en) 1989-06-22 1992-08-11 Digital Equipment Corporation Reconfiguration system and method for high-speed mesh connected local area network
US5457687A (en) 1993-09-02 1995-10-10 Network Equipment Technologies, Inc. Method and apparatus for backward explicit congestion notification (BECN) in an ATM network
US5754120A (en) * 1995-12-21 1998-05-19 Lucent Technologies Network congestion measurement method and apparatus
US5983332A (en) 1996-07-01 1999-11-09 Sun Microsystems, Inc. Asynchronous transfer mode (ATM) segmentation and reassembly unit virtual address translation unit architecture
US5937436A (en) 1996-07-01 1999-08-10 Sun Microsystems, Inc Network interface circuit including an address translation unit and flush control circuit and method for checking for invalid address translations
US6493347B2 (en) 1996-12-16 2002-12-10 Juniper Networks, Inc. Memory organization in a switching device
US6112265A (en) 1997-04-07 2000-08-29 Intel Corportion System for issuing a command to a memory having a reorder module for priority commands and an arbiter tracking address of recently issued command
US5960178A (en) 1997-08-08 1999-09-28 Bell Communications Research, Inc. Queue system and method for point-to-point message passing having a separate table for storing message state and identifier of processor assigned to process the message
US7237036B2 (en) * 1997-10-14 2007-06-26 Alacritech, Inc. Fast-path apparatus for receiving data corresponding a TCP connection
US7133940B2 (en) 1997-10-14 2006-11-07 Alacritech, Inc. Network interface device employing a DMA command queue
US6434620B1 (en) * 1998-08-27 2002-08-13 Alacritech, Inc. TCP/IP offload network interface device
US6226680B1 (en) 1997-10-14 2001-05-01 Alacritech, Inc. Intelligent network interface system method for protocol processing
US5970232A (en) * 1997-11-17 1999-10-19 Cray Research, Inc. Router table lookup mechanism
US6230252B1 (en) 1997-11-17 2001-05-08 Silicon Graphics, Inc. Hybrid hypercube/torus architecture
US6545981B1 (en) 1998-01-07 2003-04-08 Compaq Computer Corporation System and method for implementing error detection and recovery in a system area network
US6563835B1 (en) * 1998-02-20 2003-05-13 Lucent Technologies Inc. Call processing arrangement for ATM switches
US6714553B1 (en) 1998-04-15 2004-03-30 Top Layer Networks, Inc. System and process for flexible queuing of data packets in network switching
US6490276B1 (en) * 1998-06-29 2002-12-03 Nortel Networks Limited Stackable switch port collapse mechanism
US6321276B1 (en) 1998-08-04 2001-11-20 Microsoft Corporation Recoverable methods and systems for processing input/output requests including virtual memory addresses
JP2002529779A (ja) 1998-10-30 2002-09-10 サイエンス アプリケーションズ インターナショナル コーポレイション 保証されたシステム可用性を有する安全な通信のためのアジル・ネットワーク・プロトコル
US6246682B1 (en) 1999-03-05 2001-06-12 Transwitch Corp. Method and apparatus for managing multiple ATM cell queues
US6615282B1 (en) 1999-05-21 2003-09-02 Intel Corporation Adaptive messaging
US6424591B1 (en) * 1999-05-28 2002-07-23 Advanced Micro Devices, Inc. Network interface supporting fifo-type and SRAM-type accesses to internal buffer memory
US6674720B1 (en) 1999-09-29 2004-01-06 Silicon Graphics, Inc. Age-based network arbitration system and method
US6542941B1 (en) * 1999-09-30 2003-04-01 Intel Corporation Efficient command delivery and data transfer
US7076630B2 (en) * 2000-02-08 2006-07-11 Mips Tech Inc Method and apparatus for allocating and de-allocating consecutive blocks of memory in background memo management
US6977930B1 (en) 2000-02-14 2005-12-20 Cisco Technology, Inc. Pipelined packet switching and queuing architecture
US7545755B2 (en) 2000-03-03 2009-06-09 Adtran Inc. Routing switch detecting change in session identifier before reconfiguring routing table
US6735173B1 (en) 2000-03-07 2004-05-11 Cisco Technology, Inc. Method and apparatus for accumulating and distributing data items within a packet switching system
US6728211B1 (en) 2000-03-07 2004-04-27 Cisco Technology, Inc. Method and apparatus for delaying packets being sent from a component of a packet switching system
US6633580B1 (en) 2000-03-07 2003-10-14 Sun Microsystems N×N crossbar packet switch
WO2001069851A2 (en) 2000-03-13 2001-09-20 The Trustees Of Columbia University In The City Of New York Method and apparatus for allocation of resources
US7215637B1 (en) 2000-04-17 2007-05-08 Juniper Networks, Inc. Systems and methods for processing packets
US6894974B1 (en) 2000-05-08 2005-05-17 Nortel Networks Limited Method, apparatus, media, and signals for controlling packet transmission rate from a packet source
US20020146022A1 (en) * 2000-05-31 2002-10-10 Van Doren Stephen R. Credit-based flow control technique in a modular multiprocessor system
US8619793B2 (en) 2000-08-21 2013-12-31 Rockstar Consortium Us Lp Dynamic assignment of traffic classes to a priority queue in a packet forwarding device
US6985956B2 (en) 2000-11-02 2006-01-10 Sun Microsystems, Inc. Switching system
US6910148B1 (en) 2000-12-07 2005-06-21 Nokia, Inc. Router and routing protocol redundancy
US7127056B2 (en) 2000-12-26 2006-10-24 Nortel Networks Limited Dynamic adaptation to congestion in connection-oriented networks
US6732212B2 (en) 2001-02-14 2004-05-04 Fujitsu Limited Launch raw packet on remote interrupt
EP1370966B1 (en) 2001-02-24 2010-08-25 International Business Machines Corporation A novel massively parrallel supercomputer
CA2438195C (en) 2001-02-24 2009-02-03 International Business Machines Corporation Optimized scalabale network switch
EP1249972A1 (en) * 2001-04-09 2002-10-16 Telefonaktiebolaget L M Ericsson (Publ) Method of controlling a queue buffer
US20020152328A1 (en) 2001-04-11 2002-10-17 Mellanox Technologies, Ltd. Network adapter with shared database for message context information
US6687781B2 (en) 2001-05-01 2004-02-03 Zettacom, Inc. Fair weighted queuing bandwidth allocation system for network switch port
US7260104B2 (en) 2001-12-19 2007-08-21 Computer Network Technology Corporation Deferred queuing in a buffered switch
US7042842B2 (en) 2001-06-13 2006-05-09 Computer Network Technology Corporation Fiber channel switch
US7218637B1 (en) 2001-07-20 2007-05-15 Yotta Networks, Llc System for switching data using dynamic scheduling
US7382787B1 (en) * 2001-07-30 2008-06-03 Cisco Technology, Inc. Packet routing and switching device
DE60212404T2 (de) 2001-08-21 2007-01-04 Telefonaktiebolaget Lm Ericsson (Publ) Mehrfachsendung in paketvermittelten punkt-zu-punkt-netzwerken
US7415531B2 (en) 2001-08-22 2008-08-19 Mips Technologies, Inc. Method and apparatus for predicting characteristics of incoming data packets to enable speculative processing to reduce processor latency
WO2003019394A1 (en) 2001-08-24 2003-03-06 Intel Corporation A general input/output architecture, protocol and related methods to support legacy interrupts
US7464180B1 (en) 2001-10-16 2008-12-09 Cisco Technology, Inc. Prioritization and preemption of data frames over a switching fabric
US7110360B1 (en) * 2001-11-05 2006-09-19 Juniper Networks, Inc. Credit-based flow control over unreliable links
US7092401B2 (en) 2001-11-15 2006-08-15 International Business Machines Corporation Apparatus and method for managing work and completion queues using head and tail pointers with end-to-end context error cache for reliable datagram
US7457297B2 (en) 2001-11-16 2008-11-25 Enterasys Networks, Inc. Methods and apparatus for differentiated services over a packet-based network
US6698003B2 (en) 2001-12-06 2004-02-24 International Business Machines Corporation Framework for multiple-engine based verification tools for integrated circuits
US7023856B1 (en) 2001-12-11 2006-04-04 Riverstone Networks, Inc. Method and system for providing differentiated service on a per virtual circuit basis within a packet-based switch/router
US20030126280A1 (en) * 2001-12-31 2003-07-03 Maxxan Systems, Inc. XON/XOFF flow control for computer network
JP3875107B2 (ja) 2002-01-10 2007-01-31 株式会社エヌ・ティ・ティ・ドコモ パケット交換システム、パケット交換方法、ルーティング装置、パケットデータ及びその生成方法
JP2003244196A (ja) * 2002-02-20 2003-08-29 Fujitsu Ltd 負荷分散制御をするルータ及びネットワーク制御装置
US8626957B2 (en) 2003-08-22 2014-01-07 International Business Machines Corporation Collective network for computer structures
US7782776B2 (en) 2002-03-15 2010-08-24 Broadcom Corporation Shared weighted fair queuing (WFQ) shaper
US7245620B2 (en) 2002-03-15 2007-07-17 Broadcom Corporation Method and apparatus for filtering packet data in a network device
US7181531B2 (en) 2002-04-30 2007-02-20 Microsoft Corporation Method to synchronize and upload an offloaded network stack connection with a network stack
US7283558B2 (en) 2002-06-04 2007-10-16 Lucent Technologies Inc. Distributed weighted fair arbitration and forwarding
AU2003251492A1 (en) * 2002-06-11 2003-12-22 Ashish A. Pandya High performance ip processor for tcp/ip, rdma and ip storage applications
US7191249B1 (en) 2002-06-14 2007-03-13 Juniper Networks, Inc. Packet prioritization systems and methods using address aliases
EP1514191B1 (en) 2002-06-19 2009-09-16 Telefonaktiebolaget L M Ericsson A network device driver architecture
US7649882B2 (en) 2002-07-15 2010-01-19 Alcatel-Lucent Usa Inc. Multicast scheduling and replication in switches
US8700724B2 (en) 2002-08-19 2014-04-15 Broadcom Corporation System and method for transferring data over a remote direct memory access (RDMA) network
US20040049580A1 (en) * 2002-09-05 2004-03-11 International Business Machines Corporation Receive queue device with efficient queue flow control, segment placement and virtualization mechanisms
US7206858B2 (en) 2002-09-19 2007-04-17 Intel Corporation DSL transmit traffic shaper structure and procedure
US8478811B2 (en) 2002-10-08 2013-07-02 Netlogic Microsystems, Inc. Advanced processor with credit based scheme for optimal packet flow in a multi-processor system on a chip
US7327678B2 (en) 2002-10-18 2008-02-05 Alcatel Lucent Metro ethernet network system with selective upstream pause messaging
US8270423B2 (en) 2003-07-29 2012-09-18 Citrix Systems, Inc. Systems and methods of using packet boundaries for reduction in timeout prevention
US7269180B2 (en) 2002-11-04 2007-09-11 World Wide Packets, Inc. System and method for prioritizing and queuing traffic
US8103788B1 (en) 2002-11-19 2012-01-24 Advanced Micro Devices, Inc. Method and apparatus for dynamically reallocating buffers for use in a packet transmission
CN1260915C (zh) 2002-11-19 2006-06-21 华为技术有限公司 一种城域网传输设备的流量控制方法
US7317718B1 (en) 2002-12-06 2008-01-08 Juniper Networks, Inc. Flexible counter update and retrieval
US7397797B2 (en) 2002-12-13 2008-07-08 Nvidia Corporation Method and apparatus for performing network processing functions
US7441267B1 (en) 2003-03-19 2008-10-21 Bbn Technologies Corp. Method and apparatus for controlling the flow of data across a network interface
US7660908B2 (en) 2003-05-01 2010-02-09 International Business Machines Corporation Implementing virtual packet storage via packet work area
US7573827B2 (en) 2003-05-06 2009-08-11 Hewlett-Packard Development Company, L.P. Method and apparatus for detecting network congestion
JP4175185B2 (ja) 2003-06-06 2008-11-05 日本電気株式会社 ネットワーク情報記録装置
US20050108518A1 (en) 2003-06-10 2005-05-19 Pandya Ashish A. Runtime adaptable security processor
US7483374B2 (en) 2003-08-05 2009-01-27 Scalent Systems, Inc. Method and apparatus for achieving dynamic capacity and high availability in multi-stage data networks using adaptive flow-based routing
US8050180B2 (en) 2003-10-31 2011-11-01 Brocade Communications Systems, Inc. Network path tracing method
EP1528478A1 (en) * 2003-11-03 2005-05-04 Sun Microsystems, Inc. Generalized addressing scheme for remote direct memory access enabled devices
US7613184B2 (en) 2003-11-07 2009-11-03 Alcatel Lucent Method and apparatus for performing scalable selective backpressure in packet-switched networks using internal tags
US20050108444A1 (en) 2003-11-19 2005-05-19 Flauaus Gary R. Method of detecting and monitoring fabric congestion
US7441006B2 (en) 2003-12-11 2008-10-21 International Business Machines Corporation Reducing number of write operations relative to delivery of out-of-order RDMA send messages by managing reference counter
US7912979B2 (en) * 2003-12-11 2011-03-22 International Business Machines Corporation In-order delivery of plurality of RDMA messages
US20050129039A1 (en) * 2003-12-11 2005-06-16 International Business Machines Corporation RDMA network interface controller with cut-through implementation for aligned DDP segments
US7385985B2 (en) * 2003-12-31 2008-06-10 Alcatel Lucent Parallel data link layer controllers in a network switching device
US7774461B2 (en) 2004-02-18 2010-08-10 Fortinet, Inc. Mechanism for determining a congestion metric for a path in a network
JP4521206B2 (ja) * 2004-03-01 2010-08-11 株式会社日立製作所 ネットワークストレージシステム、コマンドコントローラ、及びネットワークストレージシステムにおけるコマンド制御方法
GB0404696D0 (en) * 2004-03-02 2004-04-07 Level 5 Networks Ltd Dual driver interface
EP1728366B1 (en) 2004-03-05 2007-12-05 Xyratex Technology Limited A method for congestion management of a network, a signalling protocol, a switch, an end station and a network
US7286853B2 (en) 2004-03-24 2007-10-23 Cisco Technology, Inc. System and method for aggregating multiple radio interfaces into a single logical bridge interface
US8081566B1 (en) 2004-04-19 2011-12-20 Rockstar BIDCO, LLP Method and apparatus for indicating congestion in a source routed network
US7826457B2 (en) * 2004-05-11 2010-11-02 Broadcom Corp. Method and system for handling out-of-order segments in a wireless system via direct data placement
US7672243B2 (en) 2004-06-04 2010-03-02 David Mayhew System and method to identify and communicate congested flows in a network fabric
US7639616B1 (en) 2004-06-08 2009-12-29 Sun Microsystems, Inc. Adaptive cut-through algorithm
US7483442B1 (en) 2004-06-08 2009-01-27 Sun Microsystems, Inc. VCRC checking and generation
US20050281282A1 (en) * 2004-06-21 2005-12-22 Gonzalez Henry J Internal messaging within a switch
US7453810B2 (en) 2004-07-27 2008-11-18 Alcatel Lucent Method and apparatus for closed loop, out-of-band backpressure mechanism
US20060067347A1 (en) 2004-09-29 2006-03-30 Uday Naik Cell-based queue management in software
US8353003B2 (en) 2004-10-01 2013-01-08 Exelis Inc. System and method for controlling a flow of data a network interface controller to a host processor
US7633869B1 (en) 2004-10-18 2009-12-15 Ubicom, Inc. Automatic network traffic characterization
US7593329B2 (en) 2004-10-29 2009-09-22 Broadcom Corporation Service aware flow control
US7620071B2 (en) 2004-11-16 2009-11-17 Intel Corporation Packet coalescing
US7826481B2 (en) * 2004-11-30 2010-11-02 Broadcom Corporation Network for supporting advance features on legacy components
ATE446635T1 (de) 2004-12-03 2009-11-15 Ericsson Telefon Ab L M Technik zum verbinden von zwischengeschalteten netzwerkknoten
US7831749B2 (en) 2005-02-03 2010-11-09 Solarflare Communications, Inc. Including descriptor queue empty events in completion events
US7562366B2 (en) 2005-02-03 2009-07-14 Solarflare Communications, Inc. Transmit completion event batching
US7464174B1 (en) 2005-03-07 2008-12-09 Pericom Semiconductor Corp. Shared network-interface controller (NIC) using advanced switching (AS) turn-pool routing field to select from among multiple contexts for multiple processors
US7643420B2 (en) 2005-03-11 2010-01-05 Broadcom Corporation Method and system for transmission control protocol (TCP) traffic smoothing
CA2597419C (en) 2005-03-31 2013-07-02 Telefonaktiebolaget Lm Ericsson (Publ) Protection of data delivered out-of-order
WO2006109207A1 (en) * 2005-04-13 2006-10-19 Koninklijke Philips Electronics N.V. Electronic device and method for flow control
US7856026B1 (en) 2005-06-28 2010-12-21 Altera Corporation Configurable central memory buffered packet switch module for use in a PLD
US8045454B2 (en) 2005-09-12 2011-10-25 Cisco Technology, Inc. Multimedia data flow dropping
US7733891B2 (en) 2005-09-12 2010-06-08 Zeugma Systems Inc. Methods and apparatus to support dynamic allocation of traffic management resources in a network element
US7430559B2 (en) 2005-09-21 2008-09-30 Microsoft Corporation Generalized idempotent requests
WO2007034184A2 (en) 2005-09-21 2007-03-29 Level 5 Networks Incorporated Address encryption/rate pacing
US8660137B2 (en) 2005-09-29 2014-02-25 Broadcom Israel Research, Ltd. Method and system for quality of service and congestion management for converged network interface devices
US7953002B2 (en) 2005-11-10 2011-05-31 Broadcom Corporation Buffer management and flow control mechanism including packet-based dynamic thresholding
US7873048B1 (en) * 2005-12-02 2011-01-18 Marvell International Ltd. Flexible port rate limiting
US7889762B2 (en) * 2006-01-19 2011-02-15 Intel-Ne, Inc. Apparatus and method for in-line insertion and removal of markers
US7376807B2 (en) 2006-02-23 2008-05-20 Freescale Semiconductor, Inc. Data processing system having address translation bypass and method therefor
US7664904B2 (en) 2006-03-10 2010-02-16 Ricoh Company, Limited High speed serial switch fabric performing mapping of traffic classes onto virtual channels
US20070237082A1 (en) * 2006-03-31 2007-10-11 Woojong Han Techniques for sharing connection queues and performing congestion management
US8509077B2 (en) 2006-04-05 2013-08-13 Xyratex Technology Limited Method for congestion management of a network, a switch, and a network
US20070242611A1 (en) 2006-04-13 2007-10-18 Archer Charles J Computer Hardware Fault Diagnosis
US7620791B1 (en) 2006-04-14 2009-11-17 Tilera Corporation Mapping memory in a parallel processing environment
US7577820B1 (en) 2006-04-14 2009-08-18 Tilera Corporation Managing data in a parallel processing environment
US7733781B2 (en) 2006-04-24 2010-06-08 Broadcom Corporation Distributed congestion avoidance in a network switching system
US7596628B2 (en) 2006-05-01 2009-09-29 Broadcom Corporation Method and system for transparent TCP offload (TTO) with a user space library
US20070268825A1 (en) 2006-05-19 2007-11-22 Michael Corwin Fine-grain fairness in a hierarchical switched system
US8082289B2 (en) * 2006-06-13 2011-12-20 Advanced Cluster Systems, Inc. Cluster computing support for application programs
US7693072B2 (en) 2006-07-13 2010-04-06 At&T Intellectual Property I, L.P. Method and apparatus for configuring a network topology with alternative communication paths
US7836274B2 (en) 2006-09-05 2010-11-16 Broadcom Corporation Method and system for combining page buffer list entries to optimize caching of translated addresses
US7624105B2 (en) * 2006-09-19 2009-11-24 Netlogic Microsystems, Inc. Search engine having multiple co-processors for performing inexact pattern search operations
US7839786B2 (en) 2006-10-06 2010-11-23 International Business Machines Corporation Method and apparatus for routing data in an inter-nodal communications lattice of a massively parallel computer system by semi-randomly varying routing policies for different packets
US7587575B2 (en) 2006-10-17 2009-09-08 International Business Machines Corporation Communicating with a memory registration enabled adapter using cached address translations
US8045456B1 (en) * 2006-11-27 2011-10-25 Marvell International Ltd. Hierarchical port-based rate limiting
CN101681282A (zh) * 2006-12-06 2010-03-24 弗森多系统公司（dba弗森-艾奥） 用于共享的、前端、分布式raid的装置、系统和方法
US20080147881A1 (en) 2006-12-19 2008-06-19 Krishnamurthy Rajaram B System and method for placing computation inside a network
US20080155154A1 (en) * 2006-12-21 2008-06-26 Yuval Kenan Method and System for Coalescing Task Completions
US7975120B2 (en) 2006-12-27 2011-07-05 Freescale Semiconductor, Inc. Dynamic allocation of message buffers
US9049095B2 (en) 2006-12-29 2015-06-02 Alcatel Lucent Methods and devices for providing ingress routing in selective randomized load balancing
JP4259581B2 (ja) * 2007-02-07 2009-04-30 日立電線株式会社 スイッチングハブおよびｌａｎシステム
US7904642B1 (en) 2007-02-08 2011-03-08 Netlogic Microsystems, Inc. Method for combining and storing access control lists
US7916718B2 (en) 2007-04-19 2011-03-29 Fulcrum Microsystems, Inc. Flow and congestion control in switch architectures for multi-hop, memory efficient fabrics
US7830905B2 (en) 2007-04-20 2010-11-09 Cray Inc. Speculative forwarding in a high-radix router
US7925795B2 (en) * 2007-04-30 2011-04-12 Broadcom Corporation Method and system for configuring a plurality of network interfaces that share a physical interface
US20080298248A1 (en) * 2007-05-28 2008-12-04 Guenter Roeck Method and Apparatus For Computer Network Bandwidth Control and Congestion Management
US10389736B2 (en) 2007-06-12 2019-08-20 Icontrol Networks, Inc. Communication protocols in integrated systems
US8331387B2 (en) 2007-06-22 2012-12-11 Broadcom Corporation Data switching flow control with virtual output queuing
US8199648B2 (en) 2007-07-03 2012-06-12 Cisco Technology, Inc. Flow control in a variable latency system
US8478834B2 (en) 2007-07-12 2013-07-02 International Business Machines Corporation Low latency, high bandwidth data communications between compute nodes in a parallel computer
US7936772B2 (en) 2007-07-13 2011-05-03 International Business Machines Corporation Enhancement of end-to-end network QoS
US20140173731A1 (en) * 2007-07-27 2014-06-19 Redshift Internetworking, Inc. System and Method for Unified Communications Threat Management (UCTM) for Converged Voice, Video and Multi-Media Over IP Flows
WO2009018232A1 (en) 2007-07-27 2009-02-05 Redshift Internetworking, Inc A system and method for unified communications threat management (uctm) for converged voice, video and multi-media over ip flows
US8121038B2 (en) 2007-08-21 2012-02-21 Cisco Technology, Inc. Backward congestion notification
US8014387B2 (en) * 2007-08-27 2011-09-06 International Business Machines Corporation Providing a fully non-blocking switch in a supernode of a multi-tiered full-graph interconnect architecture
US20090070786A1 (en) 2007-09-11 2009-03-12 Bea Systems, Inc. Xml-based event processing networks for event server
CN101399746B (zh) 2007-09-26 2011-03-16 华为技术有限公司 报文路由方法、系统、设备和选择备份资源的方法、系统
CN101431466B (zh) 2007-11-09 2011-04-06 华为技术有限公司 快速重路由方法及标签交换路由器
US7782869B1 (en) 2007-11-29 2010-08-24 Huawei Technologies Co., Ltd. Network traffic control for virtual device interfaces
US9519540B2 (en) * 2007-12-06 2016-12-13 Sandisk Technologies Llc Apparatus, system, and method for destaging cached data
US8014278B1 (en) 2007-12-17 2011-09-06 Force 10 Networks, Inc Adaptive load balancing between ECMP or LAG port group members
US8160085B2 (en) 2007-12-21 2012-04-17 Juniper Networks, Inc. System and method for dynamically allocating buffers based on priority levels
US7779148B2 (en) 2008-02-01 2010-08-17 International Business Machines Corporation Dynamic routing based on information of not responded active source requests quantity received in broadcast heartbeat signal and stored in local data structure for other processor chips
US8219778B2 (en) * 2008-02-27 2012-07-10 Microchip Technology Incorporated Virtual memory interface
US8249072B2 (en) 2009-03-12 2012-08-21 Oracle America, Inc. Scalable interface for connecting multiple computer systems which performs parallel MPI header matching
CN102084628B (zh) 2008-04-24 2014-12-03 马维尔国际有限公司 通信量管理器和用于通信量管理器的方法
GB2460070B (en) * 2008-05-15 2010-10-13 Gnodal Ltd A method of data delivery across a network
US8040799B2 (en) 2008-05-15 2011-10-18 International Business Machines Corporation Network on chip with minimum guaranteed bandwidth for virtual communications channels
GB2461132B (en) 2008-06-27 2013-02-13 Gnodal Ltd Method of data delivery across a network
GB2462492B (en) * 2008-08-14 2012-08-15 Gnodal Ltd A multi-path network
US20100049942A1 (en) 2008-08-20 2010-02-25 John Kim Dragonfly processor interconnect network
US8755396B2 (en) 2008-09-11 2014-06-17 Juniper Networks, Inc. Methods and apparatus related to flow control within a data center switch fabric
US7996484B2 (en) 2008-12-11 2011-08-09 Microsoft Corporation Non-disruptive, reliable live migration of virtual machines with network data reception directly into virtual machines' memory
US8103809B1 (en) 2009-01-16 2012-01-24 F5 Networks, Inc. Network devices with multiple direct memory access channels and methods thereof
US20100183024A1 (en) 2009-01-21 2010-07-22 Brocade Communications Systems, Inc Simplified rdma over ethernet and fibre channel
US8510496B1 (en) 2009-04-27 2013-08-13 Netapp, Inc. Scheduling access requests for a multi-bank low-latency random read memory device
US8255475B2 (en) 2009-04-28 2012-08-28 Mellanox Technologies Ltd. Network interface device with memory management capabilities
US8170062B2 (en) * 2009-04-29 2012-05-01 Intel Corporation Packetized interface for coupling agents
US9086973B2 (en) 2009-06-09 2015-07-21 Hyperion Core, Inc. System and method for a cache in a multi-core processor
JP4688946B2 (ja) 2009-06-15 2011-05-25 富士通株式会社 スイッチ及びアドレス学習方法
US8908520B2 (en) 2009-06-26 2014-12-09 Telekom Malaysia Berhad Method and system for service-based regulation of traffic flow to customer premises devices
US8605584B2 (en) 2009-07-02 2013-12-10 Qualcomm Incorporated Transmission of control information across multiple packets
US8175107B1 (en) 2009-08-18 2012-05-08 Hewlett-Packard Development Company, L.P. Network routing based on MAC address subnetting
CN101651625B (zh) 2009-09-03 2011-09-21 中兴通讯股份有限公司 多业务恢复的选路装置及选路方法
JP5648639B2 (ja) * 2009-09-10 2015-01-07 日本電気株式会社 中継制御装置、中継制御システム、中継制御方法及び中継制御プログラム
US20110103391A1 (en) * 2009-10-30 2011-05-05 Smooth-Stone, Inc. C/O Barry Evans System and method for high-performance, low-power data center interconnect fabric
KR101638061B1 (ko) 2009-10-27 2016-07-08 삼성전자주식회사 플래시 메모리 시스템 및 그것의 플래시 조각 모음 방법
US8953603B2 (en) 2009-10-28 2015-02-10 Juniper Networks, Inc. Methods and apparatus related to a distributed switch fabric
US8443151B2 (en) 2009-11-09 2013-05-14 Intel Corporation Prefetch optimization in shared resource multi-core systems
TWI416336B (zh) 2009-11-10 2013-11-21 Realtek Semiconductor Corp 可共享緩衝器的網路介面卡與緩衝器共享方法
US8780926B2 (en) 2009-12-01 2014-07-15 Polytechnic Institute Of New York University Updating prefix-compressed tries for IP route lookup
CN101729609B (zh) 2009-12-03 2012-02-22 北京交通大学 一种向量交换实现方法
US9054996B2 (en) 2009-12-24 2015-06-09 Juniper Networks, Inc. Dynamic prioritized fair share scheduling scheme in over-subscribed port scenario
US8719543B2 (en) 2009-12-29 2014-05-06 Advanced Micro Devices, Inc. Systems and methods implementing non-shared page tables for sharing memory resources managed by a main operating system with accelerator devices
US8285915B2 (en) 2010-01-13 2012-10-09 International Business Machines Corporation Relocating page tables and data amongst memory modules in a virtualized environment
US8280671B2 (en) * 2010-01-29 2012-10-02 Microsoft Corporation Compressive data gathering for large-scale wireless sensor networks
US8295284B1 (en) * 2010-02-02 2012-10-23 Cisco Technology, Inc. Dynamic, conditon-based packet redirection
US8544026B2 (en) 2010-02-09 2013-09-24 International Business Machines Corporation Processing data communications messages with input/output control blocks
US8862682B2 (en) 2010-02-17 2014-10-14 Emulex Corporation Accelerated sockets
US8325723B1 (en) * 2010-02-25 2012-12-04 Integrated Device Technology, Inc. Method and apparatus for dynamic traffic management with packet classification
US9001663B2 (en) 2010-02-26 2015-04-07 Microsoft Corporation Communication transport optimized for data center environment
US20110225297A1 (en) 2010-03-11 2011-09-15 International Business Machines Corporation Controlling Access To A Resource In A Distributed Computing System With A Distributed Access Request Queue
US8971345B1 (en) 2010-03-22 2015-03-03 Riverbed Technology, Inc. Method and apparatus for scheduling a heterogeneous communication flow
US8606979B2 (en) * 2010-03-29 2013-12-10 International Business Machines Corporation Distributed administration of a lock for an operational group of compute nodes in a hierarchical tree structured network
US8379642B2 (en) * 2010-04-26 2013-02-19 International Business Machines Corporation Multicasting using a multitiered distributed virtual bridge hierarchy
US9007895B2 (en) 2010-04-30 2015-04-14 Hewlett-Packard Development Company, L.P. Method for routing data packets in a fat tree network
WO2011143094A2 (en) 2010-05-09 2011-11-17 Citrix Systems, Inc. Systems and methods for allocation of classes of service to network connections corresponding to virtual channels
US8335157B2 (en) 2010-05-17 2012-12-18 Cisco Technology, Inc. Adaptive queue-management
US8949577B2 (en) * 2010-05-28 2015-02-03 International Business Machines Corporation Performing a deterministic reduction operation in a parallel computer
US8489859B2 (en) 2010-05-28 2013-07-16 International Business Machines Corporation Performing a deterministic reduction operation in a compute node organized into a branched tree topology
US9065773B2 (en) 2010-06-22 2015-06-23 Juniper Networks, Inc. Methods and apparatus for virtual channel flow control associated with a switch fabric
US8898324B2 (en) * 2010-06-24 2014-11-25 International Business Machines Corporation Data access management in a hybrid memory server
US8719455B2 (en) 2010-06-28 2014-05-06 International Business Machines Corporation DMA-based acceleration of command push buffer between host and target devices
JP5498889B2 (ja) * 2010-08-06 2014-05-21 アラクサラネットワークス株式会社 パケット中継装置および輻輳制御方法
CN103201957B (zh) 2010-08-19 2014-11-19 爱立信(中国)通信有限公司 用于无线通信系统中的传输格式选择的方法和设备
US20120102506A1 (en) 2010-10-20 2012-04-26 Microsoft Corporation Web service patterns for globally distributed service fabric
JP5913912B2 (ja) 2010-11-05 2016-04-27 インテル コーポレイション Ｄｒａｇｏｎｆｌｙプロセッサ相互接続ネットワークにおける革新的な適応型ルーティング
JP5860670B2 (ja) 2010-11-05 2016-02-16 インテル コーポレイション Ｄｒａｇｏｎｆｌｙプロセッサ相互接続ネットワークにおけるテーブル駆動型ルーティング
US8473783B2 (en) 2010-11-09 2013-06-25 International Business Machines Corporation Fault tolerance in distributed systems
US8533285B2 (en) 2010-12-01 2013-09-10 Cisco Technology, Inc. Directing data flows in data centers with clustering services
US9436651B2 (en) 2010-12-09 2016-09-06 Intel Corporation Method and apparatus for managing application state in a network interface controller in a high performance computing system
US8996644B2 (en) 2010-12-09 2015-03-31 Solarflare Communications, Inc. Encapsulated accelerator
US9208071B2 (en) 2010-12-13 2015-12-08 SanDisk Technologies, Inc. Apparatus, system, and method for accessing memory
WO2012082792A2 (en) * 2010-12-13 2012-06-21 Fusion-Io, Inc. Apparatus, system, and method for auto-commit memory
US9047178B2 (en) * 2010-12-13 2015-06-02 SanDisk Technologies, Inc. Auto-commit memory synchronization
US9218278B2 (en) 2010-12-13 2015-12-22 SanDisk Technologies, Inc. Auto-commit memory
US10817502B2 (en) 2010-12-13 2020-10-27 Sandisk Technologies Llc Persistent memory management
US9008113B2 (en) * 2010-12-20 2015-04-14 Solarflare Communications, Inc. Mapped FIFO buffering
US8462632B1 (en) 2010-12-28 2013-06-11 Amazon Technologies, Inc. Network traffic control
US8780896B2 (en) 2010-12-29 2014-07-15 Juniper Networks, Inc. Methods and apparatus for validation of equal cost multi path (ECMP) paths in a switch fabric system
US20120170462A1 (en) 2011-01-05 2012-07-05 Alcatel Lucent Usa Inc. Traffic flow control based on vlan and priority
KR20120082739A (ko) 2011-01-14 2012-07-24 한국과학기술원 멀티 라디오 모바일 애드혹 네트워크에서의 링크 품질 기반 라우팅 방법
DE102011009518B4 (de) 2011-01-26 2013-09-12 Ruprecht-Karls-Universität Heidelberg Schaltungsanordnung für Verbindungsschnittstelle
US8467294B2 (en) * 2011-02-11 2013-06-18 Cisco Technology, Inc. Dynamic load balancing for port groups
US8776207B2 (en) * 2011-02-16 2014-07-08 Fortinet, Inc. Load balancing in a network with session information
US20120213118A1 (en) 2011-02-18 2012-08-23 Lindsay Steven B Method and system for network interface controller (nic) address resolution protocol (arp) batching
US8953442B2 (en) * 2011-03-09 2015-02-10 Cray Inc. Congestion detection in a network interconnect
US8982688B2 (en) * 2011-03-09 2015-03-17 Cray Inc Congestion abatement in a network interconnect
US9716659B2 (en) 2011-03-23 2017-07-25 Hughes Network Systems, Llc System and method for providing improved quality of service over broadband networks
US8644157B2 (en) 2011-03-28 2014-02-04 Citrix Systems, Inc. Systems and methods for handling NIC congestion via NIC aware application
WO2012132264A1 (ja) 2011-03-28 2012-10-04 パナソニック株式会社 中継器、中継器の制御方法、およびプログラム
EP2692096A1 (en) 2011-03-29 2014-02-05 NEC Europe Ltd. User traffic accountability under congestion in flow-based multi-layer switches
US8677031B2 (en) 2011-03-31 2014-03-18 Intel Corporation Facilitating, at least in part, by circuitry, accessing of at least one controller command interface
US9154400B2 (en) * 2011-05-10 2015-10-06 Cray Inc. Dynamically updating routing information while avoiding deadlocks and preserving packet order after a configuration change
US9225628B2 (en) 2011-05-24 2015-12-29 Mellanox Technologies Ltd. Topology-based consolidation of link state information
US8804752B2 (en) * 2011-05-31 2014-08-12 Oracle International Corporation Method and system for temporary data unit storage on infiniband host channel adaptor
US9716592B1 (en) * 2011-06-10 2017-07-25 Google Inc. Traffic distribution over multiple paths in a network while maintaining flow affinity
US8553683B2 (en) 2011-07-05 2013-10-08 Plx Technology, Inc. Three dimensional fat tree networks
US11636031B2 (en) 2011-08-11 2023-04-25 Pure Storage, Inc. Optimized inline deduplication
US8711867B2 (en) * 2011-08-26 2014-04-29 Sonics, Inc. Credit flow control scheme in a router with flexible link widths utilizing minimal storage
US8694994B1 (en) 2011-09-07 2014-04-08 Amazon Technologies, Inc. Optimization of packet processing by delaying a processor from entering an idle state
US8713240B2 (en) * 2011-09-29 2014-04-29 Intel Corporation Providing multiple decode options for a system-on-chip (SoC) fabric
US20130083660A1 (en) 2011-10-03 2013-04-04 Cisco Technology, Inc. Per-Group ECMP for Multidestination Traffic in DCE/TRILL Networks
US8811183B1 (en) 2011-10-04 2014-08-19 Juniper Networks, Inc. Methods and apparatus for multi-path flow control within a multi-stage switch fabric
US9065745B2 (en) * 2011-10-06 2015-06-23 International Business Machines Corporation Network traffic distribution
US9143467B2 (en) 2011-10-25 2015-09-22 Mellanox Technologies Ltd. Network interface controller with circular receive buffer
US9444749B2 (en) 2011-10-28 2016-09-13 Telecom Italia S.P.A. Apparatus and method for selectively delaying network data flows
EP2592871B1 (en) 2011-11-11 2014-05-28 Itron, Inc. Routing communications based on link quality
US8966457B2 (en) * 2011-11-15 2015-02-24 Global Supercomputing Corporation Method and system for converting a single-threaded software program into an application-specific supercomputer
US8948175B2 (en) 2011-11-18 2015-02-03 Ciena Corporation Selecting a link of a link group based on contents of a concealed header
US9065749B2 (en) 2011-11-21 2015-06-23 Qualcomm Incorporated Hybrid networking path selection and load balancing
KR101636634B1 (ko) 2011-12-21 2016-07-05 인텔 코포레이션 프로세서로부터 메모리 서브시스템으로 데이터를 지능적으로 플러싱하기 위한 시스템 및 방법
US9055114B1 (en) 2011-12-22 2015-06-09 Juniper Networks, Inc. Packet parsing and control packet classification
US8996840B2 (en) * 2011-12-23 2015-03-31 International Business Machines Corporation I/O controller and method for operating an I/O controller
BR112014017543A2 (pt) 2012-01-17 2017-06-27 Intel Corp técnicas de validação de comando para o acesso a um dispositivo de armazenamento por um cliente remoto
US8908682B2 (en) * 2012-02-02 2014-12-09 International Business Machines Corporation Switch discovery protocol for a distributed fabric system
US8868735B2 (en) 2012-02-02 2014-10-21 Cisco Technology, Inc. Wide area network optimization
US20130204965A1 (en) 2012-02-03 2013-08-08 Cahya Masputra Packet transmission on a client using implicit enabling of features based on service classifications
US9007901B2 (en) 2012-02-09 2015-04-14 Alcatel Lucent Method and apparatus providing flow control using on-off signals in high delay networks
US9960872B2 (en) 2012-03-08 2018-05-01 Marvell International Ltd. Systems and methods for performing a soft-block of a queue based on a size of a remaining period of a guard band
US9088496B2 (en) 2012-03-16 2015-07-21 Brocade Communications Systems, Inc. Packet tracing through control and data plane operations
US9231888B2 (en) 2012-05-11 2016-01-05 Oracle International Corporation System and method for routing traffic between distinct InfiniBand subnets based on source routing
US10936591B2 (en) 2012-05-15 2021-03-02 Microsoft Technology Licensing, Llc Idempotent command execution
US9491108B2 (en) 2012-05-15 2016-11-08 Marvell World Trade Ltd. Extended priority for ethernet packets
US10102170B2 (en) * 2012-05-18 2018-10-16 Dell Products, Lp System and method for providing input/output functionality by an I/O complex switch
US9898317B2 (en) 2012-06-06 2018-02-20 Juniper Networks, Inc. Physical path determination for virtual network packet flows
US8817807B2 (en) 2012-06-11 2014-08-26 Cisco Technology, Inc. System and method for distributed resource control of switches in a network environment
US8989049B2 (en) 2012-06-15 2015-03-24 Cisco Technology, Inc. System and method for virtual portchannel load balancing in a trill network
JP2014007681A (ja) * 2012-06-27 2014-01-16 Hitachi Ltd ネットワークシステム、および、その管理装置、そのスイッチ
ES2395955B2 (es) * 2012-07-05 2014-01-22 Universidad De Cantabria Método de encaminamiento adaptativo en redes jerárquicas
WO2014022492A1 (en) 2012-07-31 2014-02-06 Huawei Technologies Co., Ltd. A method to allocate packet buffers in a packet transferring system
US9049137B1 (en) 2012-08-06 2015-06-02 Google Inc. Hash based ECMP load balancing with non-power-of-2 port group sizes
US9635121B2 (en) 2012-08-06 2017-04-25 Paypal, Inc. Systems and methods for caching HTTP post requests and responses
US9705804B2 (en) 2012-08-30 2017-07-11 Sonus Networks, Inc. Opportunistic wireless resource utilization using dynamic traffic shaping
CN103227757B (zh) * 2012-08-31 2016-12-28 杭州华三通信技术有限公司 一种报文转发方法及设备
US9350665B2 (en) 2012-08-31 2016-05-24 Cisco Technology, Inc. Congestion mitigation and avoidance
US9424214B2 (en) * 2012-09-28 2016-08-23 Mellanox Technologies Ltd. Network interface controller with direct connection to host memory
US9049233B2 (en) 2012-10-05 2015-06-02 Cisco Technology, Inc. MPLS segment-routing
US9215093B2 (en) * 2012-10-30 2015-12-15 Futurewei Technologies, Inc. Encoding packets for transport over SDN networks
CN102932203B (zh) 2012-10-31 2015-06-10 东软集团股份有限公司 异构平台间的深度报文检测方法及装置
US9424228B2 (en) 2012-11-01 2016-08-23 Ezchip Technologies Ltd. High performance, scalable multi chip interconnect
US9286620B2 (en) 2012-11-05 2016-03-15 Broadcom Corporation Annotated tracing for data networks
JP5958293B2 (ja) 2012-11-14 2016-07-27 富士通株式会社 通信方法、通信プログラム、および、ノード装置
US8989017B2 (en) 2012-12-14 2015-03-24 Intel Corporation Network congestion management by packet circulation
US9094321B2 (en) * 2013-01-03 2015-07-28 International Business Machines Corporation Energy management for communication network elements
US9154438B2 (en) 2013-01-24 2015-10-06 Cisco Technology, Inc. Port-based fairness protocol for a network element
US9460178B2 (en) 2013-01-25 2016-10-04 Dell Products L.P. Synchronized storage system operation
US9634940B2 (en) * 2013-01-31 2017-04-25 Mellanox Technologies, Ltd. Adaptive routing using inter-switch notifications
US9705957B2 (en) 2013-03-04 2017-07-11 Open Garden Inc. Virtual channel joining
US11966355B2 (en) 2013-03-10 2024-04-23 Mellanox Technologies, Ltd. Network adapter with a common queue for both networking and data manipulation work requests
US10275375B2 (en) 2013-03-10 2019-04-30 Mellanox Technologies, Ltd. Network interface controller with compression capabilities
US9444748B2 (en) 2013-03-15 2016-09-13 International Business Machines Corporation Scalable flow and congestion control with OpenFlow
US9769074B2 (en) * 2013-03-15 2017-09-19 International Business Machines Corporation Network per-flow rate limiting
US9253096B2 (en) 2013-03-15 2016-02-02 International Business Machines Corporation Bypassing congestion points in a converged enhanced ethernet fabric
US9053012B1 (en) 2013-03-15 2015-06-09 Pmc-Sierra, Inc. Systems and methods for storing data for solid-state memory
US9692706B2 (en) 2013-04-15 2017-06-27 International Business Machines Corporation Virtual enhanced transmission selection (VETS) for lossless ethernet
US9571402B2 (en) 2013-05-03 2017-02-14 Netspeed Systems Congestion control and QoS in NoC by regulating the injection traffic
US9075557B2 (en) * 2013-05-15 2015-07-07 SanDisk Technologies, Inc. Virtual channel for data transfers between devices
US9788210B2 (en) 2013-06-11 2017-10-10 Sonus Networks, Inc. Methods and systems for adaptive buffer allocations in systems with adaptive resource allocation
WO2014209347A1 (en) 2013-06-28 2014-12-31 Intel Corporation Mechanism to control resource utilization with adaptive routing
US9405724B2 (en) 2013-06-28 2016-08-02 Intel Corporation Reconfigurable apparatus for hierarchical collective networks with bypass mode
US9674098B2 (en) 2013-07-02 2017-06-06 Intel Corporation Credit flow control for ethernet
US9197529B2 (en) * 2013-07-12 2015-11-24 Nicira, Inc. Tracing network packets through logical and physical networks
US9282041B2 (en) * 2013-07-16 2016-03-08 Lenovo Enterprise Solutions (Singapore) Pte. Ltd. Congestion profiling of computer network devices
US9467522B2 (en) 2013-07-19 2016-10-11 Broadcom Corporation Ingress based headroom buffering for switch architectures
US9781041B2 (en) 2013-07-24 2017-10-03 Dell Products Lp Systems and methods for native network interface controller (NIC) teaming load balancing
CN105556908B (zh) 2013-08-28 2019-05-28 Kt株式会社 基于多流式分组的带宽提供方法
US9509550B2 (en) 2013-08-30 2016-11-29 Microsoft Technology Licensing, Llc Generating an idempotent workflow
US10261813B2 (en) 2013-09-25 2019-04-16 Arm Limited Data processing system for dispatching tasks from a plurality of applications to a shared resource provided by an accelerator
US9276771B1 (en) * 2013-09-27 2016-03-01 Google Inc. Lossless multipath table compression
US9239804B2 (en) 2013-10-03 2016-01-19 Advanced Micro Devices, Inc. Back-off mechanism for a peripheral page request log
US20150103667A1 (en) 2013-10-13 2015-04-16 Mellanox Technologies Ltd. Detection of root and victim network congestion
US9740606B1 (en) 2013-11-01 2017-08-22 Amazon Technologies, Inc. Reliable distributed messaging using non-volatile system memory
US10089220B1 (en) 2013-11-01 2018-10-02 Amazon Technologies, Inc. Saving state information resulting from non-idempotent operations in non-volatile system memory
US9876715B2 (en) 2013-11-05 2018-01-23 Cisco Technology, Inc. Network fabric overlay
CN104639470B (zh) * 2013-11-14 2019-05-31 中兴通讯股份有限公司 流标识封装方法及系统
US9674042B2 (en) 2013-11-25 2017-06-06 Amazon Technologies, Inc. Centralized resource usage visualization service for large-scale network topologies
US9762497B2 (en) 2013-11-26 2017-09-12 Avago Technologies General Ip (Singapore) Pte. Ltd. System, method and apparatus for network congestion management and network resource isolation
US9419908B2 (en) 2013-11-27 2016-08-16 Cisco Technology, Inc. Network congestion management using flow rebalancing
US9311044B2 (en) 2013-12-04 2016-04-12 Oracle International Corporation System and method for supporting efficient buffer usage with a single external memory interface
US10158538B2 (en) 2013-12-09 2018-12-18 Nicira, Inc. Reporting elephant flows to a network controller
US9455915B2 (en) 2013-12-12 2016-09-27 Broadcom Corporation Hierarchical congestion control with congested flow identification hardware
US9648148B2 (en) 2013-12-24 2017-05-09 Intel Corporation Method, apparatus, and system for QoS within high performance fabrics
US9495204B2 (en) 2014-01-06 2016-11-15 International Business Machines Corporation Constructing a logical tree topology in a parallel computer
US9513926B2 (en) 2014-01-08 2016-12-06 Cavium, Inc. Floating mask generation for network packet flow
KR102171348B1 (ko) * 2014-01-08 2020-10-29 삼성전자주식회사 어플리케이션 검출 방법 및 장치
US9391844B2 (en) 2014-01-15 2016-07-12 Dell Products, L.P. System and method for network topology management
CN104811396A (zh) * 2014-01-23 2015-07-29 中兴通讯股份有限公司 一种负荷均衡的方法及系统
JP2015146115A (ja) * 2014-02-03 2015-08-13 富士通株式会社 演算処理装置、情報処理装置及び演算処理装置の制御方法
US9753883B2 (en) 2014-02-04 2017-09-05 Netronome Systems, Inc. Network interface device that maps host bus writes of configuration information for virtual NIDs into a small transactional memory
US9628382B2 (en) * 2014-02-05 2017-04-18 Intel Corporation Reliable transport of ethernet packet data with wire-speed and packet data rate match
KR102093296B1 (ko) * 2014-02-11 2020-03-25 한국전자통신연구원 시간 확정적으로 대용량 경로를 전환하는 데이터 처리 시스템 및 데이터 처리 시스템의 동작 방법
US9584637B2 (en) 2014-02-19 2017-02-28 Netronome Systems, Inc. Guaranteed in-order packet delivery
CA2882446A1 (en) 2014-02-21 2015-08-21 Coho Data, Inc. Methods, systems and devices for parallel network interface data structures with differential data storage service capabilities
US9294385B2 (en) 2014-03-03 2016-03-22 International Business Machines Corporation Deadlock-free routing in fat tree networks
KR101587379B1 (ko) 2014-03-04 2016-01-20 주식회사 케이티 큐 사이즈의 동적 제어 방법 및 이를 수행하는 장치
US9762488B2 (en) 2014-03-06 2017-09-12 Cisco Technology, Inc. Segment routing extension headers
US9838500B1 (en) 2014-03-11 2017-12-05 Marvell Israel (M.I.S.L) Ltd. Network device and method for packet processing
US9325641B2 (en) 2014-03-13 2016-04-26 Mellanox Technologies Ltd. Buffering schemes for communication over long haul links
US9727503B2 (en) 2014-03-17 2017-08-08 Mellanox Technologies, Ltd. Storage system and server
RU2653306C1 (ru) 2014-03-20 2018-05-07 Интел Корпорейшн Способ, устройство и система для управления потреблением энергии неиспользуемым аппаратным средством канального интерфейса
US20160154756A1 (en) 2014-03-31 2016-06-02 Avago Technologies General Ip (Singapore) Pte. Ltd Unordered multi-path routing in a pcie express fabric environment
US9846658B2 (en) * 2014-04-21 2017-12-19 Cisco Technology, Inc. Dynamic temporary use of packet memory as resource memory
CN103973482A (zh) * 2014-04-22 2014-08-06 南京航空航天大学 具有全局通信事务管理能力的容错片上网络系统及方法
WO2015167479A1 (en) 2014-04-29 2015-11-05 Hewlett-Packard Development Company, L.P. Efficient routing in software defined networks
US10031857B2 (en) 2014-05-27 2018-07-24 Mellanox Technologies, Ltd. Address translation services for direct accessing of local memory over a network fabric
US10261814B2 (en) 2014-06-23 2019-04-16 Intel Corporation Local service chaining with virtual machines and virtualized containers in software defined networking
US9930097B2 (en) * 2014-07-03 2018-03-27 Qualcomm Incorporated Transport accelerator systems and methods
US9519605B2 (en) 2014-07-08 2016-12-13 International Business Machines Corporation Interconnection network topology for large scale high performance computing (HPC) systems
US9369397B1 (en) * 2014-07-16 2016-06-14 Juniper Networks, Inc. Apparatus to achieve quality of service (QoS) without requiring fabric speedup
US9699067B2 (en) 2014-07-22 2017-07-04 Mellanox Technologies, Ltd. Dragonfly plus: communication over bipartite node groups connected by a mesh network
US10257083B2 (en) 2014-08-29 2019-04-09 Cisco Technology, Inc. Flow cache based mechanism of packet redirection in multiple border routers for application awareness
US9742855B2 (en) 2014-09-04 2017-08-22 Mellanox Technologies, Ltd. Hybrid tag matching
EP3192299B1 (en) 2014-09-10 2020-01-15 Telefonaktiebolaget LM Ericsson (publ) Explicit congestion notification marking of user traffic
US9548872B2 (en) 2014-09-26 2017-01-17 Dell Products, Lp Reducing internal fabric congestion in leaf-spine switch fabric
CN105900061B (zh) * 2014-10-22 2018-01-16 华为技术有限公司 对象存储系统中的业务流控制方法、控制器和系统
US9722932B1 (en) * 2014-10-28 2017-08-01 Amazon Technologies, Inc. Packet path selection using shuffle sharding
US10153967B2 (en) 2014-11-06 2018-12-11 Juniper Networks, Inc. Deterministic and optimized bit index explicit replication (BIER) forwarding
US10033641B2 (en) 2014-11-06 2018-07-24 Juniper Networks, Inc. Deterministic and optimized bit index explicit replication (BIER) forwarding
GB2532052A (en) 2014-11-07 2016-05-11 Ibm NC-SI port controller
GB2532053A (en) 2014-11-07 2016-05-11 Ibm NC-SI port controller
US10148738B2 (en) 2014-11-12 2018-12-04 Zuora, Inc. System and method for equitable processing of asynchronous messages in a multi-tenant platform
US10050896B2 (en) 2014-11-14 2018-08-14 Cavium, Inc. Management of an over-subscribed shared buffer
US10003544B2 (en) 2014-12-11 2018-06-19 Futurewei Technologies, Inc. Method and apparatus for priority flow and congestion control in ethernet network
US9369200B1 (en) 2014-12-18 2016-06-14 Juniper Networks, Inc. Network controller having predictable analytics and failure avoidance in packet-optical networks
US10148575B2 (en) 2014-12-22 2018-12-04 Telefonaktiebolaget Lm Ericsson (Publ) Adaptive load balancing in packet processing
US9800508B2 (en) 2015-01-09 2017-10-24 Dell Products L.P. System and method of flow shaping to reduce impact of incast communications
US9894000B2 (en) 2015-01-30 2018-02-13 Huawei Technologies Co., Ltd Method for forwarding data packets in a network and programmable ingress and egress nodes therefore
US10409681B2 (en) 2015-01-30 2019-09-10 Hewlett Packard Enterprise Development Lp Non-idempotent primitives in fault-tolerant memory
US9894013B2 (en) 2015-02-03 2018-02-13 Avago Technologies General Ip (Singapore) Pte. Ltd. Early queueing network device
US9594521B2 (en) 2015-02-23 2017-03-14 Advanced Micro Devices, Inc. Scheduling of data migration
US10341221B2 (en) 2015-02-26 2019-07-02 Cisco Technology, Inc. Traffic engineering for bit indexed explicit replication
US10009270B1 (en) 2015-03-01 2018-06-26 Netronome Systems, Inc. Modular and partitioned SDN switch
JP6672340B2 (ja) 2015-03-03 2020-03-25 オパンガ ネットワークス，インコーポレイテッド データフローを調整するシステム及び方法
US10033574B2 (en) 2015-03-20 2018-07-24 Oracle International Corporation System and method for efficient network reconfiguration in fat-trees
WO2016153506A1 (en) 2015-03-25 2016-09-29 Hewlett Packard Enterprise Development Lp Fast failover recovery in software defined networks
WO2016154789A1 (zh) 2015-03-27 2016-10-06 华为技术有限公司 数据处理方法、内存管理单元及内存控制设备
WO2016159945A1 (en) 2015-03-28 2016-10-06 Intel Corporation Distributed routing table system with improved support for multiple network topologies
US10305772B2 (en) 2015-03-30 2019-05-28 Mellanox Technologies, Ltd. Using a single work item to send multiple messages
US9444769B1 (en) * 2015-03-31 2016-09-13 Chelsio Communications, Inc. Method for out of order placement in PDU-oriented protocols
US9876698B2 (en) 2015-04-09 2018-01-23 International Business Machines Corporation Interconnect congestion control in a storage grid
US10180792B1 (en) * 2015-04-30 2019-01-15 Seagate Technology Llc Cache management in data storage systems
US9842083B2 (en) * 2015-05-18 2017-12-12 Red Hat Israel, Ltd. Using completion queues for RDMA event detection
US10033638B1 (en) * 2015-05-29 2018-07-24 Netronome Systems, Inc. Executing a selected sequence of instructions depending on packet type in an exact-match flow switch
US10158712B2 (en) * 2015-06-04 2018-12-18 Advanced Micro Devices, Inc. Source-side resource request network admission control
US9847936B2 (en) * 2015-06-25 2017-12-19 Intel Corporation Apparatus and method for hardware-accelerated packet processing
US9888095B2 (en) * 2015-06-26 2018-02-06 Microsoft Technology Licensing, Llc Lightweight transport protocol
US9674090B2 (en) 2015-06-26 2017-06-06 Microsoft Technology Licensing, Llc In-line network accelerator
US9942171B2 (en) 2015-07-02 2018-04-10 Arista Networks, Inc. Network data processor having per-input port virtual output queues
KR102430187B1 (ko) * 2015-07-08 2022-08-05 삼성전자주식회사 RDMA NVMe 디바이스의 구현 방법
US10110475B2 (en) * 2015-07-16 2018-10-23 Telefonaktiebolaget Lm Ericsson (Publ) Restoration method for an MPLS ring network
US9626232B2 (en) 2015-07-23 2017-04-18 Arm Limited Event queue management
US9830273B2 (en) 2015-07-30 2017-11-28 Netapp, Inc. Deduplicated host cache flush to remote storage
US10009277B2 (en) 2015-08-04 2018-06-26 Mellanox Technologies Tlv Ltd. Backward congestion notification in layer-3 networks
US20170048144A1 (en) 2015-08-13 2017-02-16 Futurewei Technologies, Inc. Congestion Avoidance Traffic Steering (CATS) in Datacenter Networks
US9749266B2 (en) 2015-08-28 2017-08-29 International Business Machines Corporation Coalescing messages using a network interface controller
US10284383B2 (en) * 2015-08-31 2019-05-07 Mellanox Technologies, Ltd. Aggregation protocol
EP3345353B1 (en) * 2015-09-02 2021-11-03 Telefonaktiebolaget LM Ericsson (publ) Handling of acknowledgement in wireless radio ad-hoc networks
US10193824B2 (en) 2015-09-06 2019-01-29 RISC Networks, LLC Systems and methods for intelligent application grouping
CN106559336B (zh) 2015-09-24 2020-04-03 新华三技术有限公司 应用于sdn中的路径倒换方法、转发表项下发方法和装置
US20170093770A1 (en) * 2015-09-25 2017-03-30 Intel Corporation Technologies for receive side message inspection and filtering
US10120809B2 (en) 2015-09-26 2018-11-06 Intel Corporation Method, apparatus, and system for allocating cache using traffic class
US10216533B2 (en) 2015-10-01 2019-02-26 Altera Corporation Efficient virtual I/O address translation
US10652112B2 (en) * 2015-10-02 2020-05-12 Keysight Technologies Singapore (Sales) Pte. Ltd. Network traffic pre-classification within VM platforms in virtual processing environments
US10423625B2 (en) 2015-10-08 2019-09-24 Samsung Sds America, Inc. Exactly-once semantics for streaming analytics in non-idempotent output operations
US10063481B1 (en) 2015-11-10 2018-08-28 U.S. Department Of Energy Network endpoint congestion management
US20170153852A1 (en) 2015-11-30 2017-06-01 Mediatek Inc. Multi-port memory controller capable of serving multiple access requests by accessing different memory banks of multi-bank packet buffer and associated packet storage design
US10423568B2 (en) 2015-12-21 2019-09-24 Microsemi Solutions (U.S.), Inc. Apparatus and method for transferring data and commands in a memory management environment
US10135711B2 (en) * 2015-12-22 2018-11-20 Intel Corporation Technologies for sideband performance tracing of network traffic
US20170187587A1 (en) * 2015-12-26 2017-06-29 David Keppel Technologies for inline network traffic performance tracing
US10498654B2 (en) * 2015-12-28 2019-12-03 Amazon Technologies, Inc. Multi-path transport design
US9959214B1 (en) * 2015-12-29 2018-05-01 Amazon Technologies, Inc. Emulated translation unit using a management processor
US9985903B2 (en) * 2015-12-29 2018-05-29 Amazon Technologies, Inc. Reliable, out-of-order receipt of packets
US9985904B2 (en) 2015-12-29 2018-05-29 Amazon Technolgies, Inc. Reliable, out-of-order transmission of packets
CN106936713B (zh) * 2015-12-30 2020-02-21 华为技术有限公司 一种标签管理方法，数据流处理方法及设备
US10331569B2 (en) * 2016-01-05 2019-06-25 Friday Harbor Llc Packet router buffer management
US10616118B2 (en) * 2016-01-28 2020-04-07 Oracle International Corporation System and method for supporting aggressive credit waiting in a high performance computing environment
US10708819B2 (en) * 2016-02-25 2020-07-07 Telefonaktiebolaget Lm Ericsson (Publ) Back-pressure control in a telecommunications network
US10175891B1 (en) * 2016-03-15 2019-01-08 Pavilion Data Systems, Inc. Minimizing read latency for solid state drives
US10079782B2 (en) 2016-03-31 2018-09-18 Mellanox Technologies Tlv Ltd. Facilitating communication of data packets using credit-based flow control
US10120814B2 (en) 2016-04-01 2018-11-06 Intel Corporation Apparatus and method for lazy translation lookaside buffer (TLB) coherence
US9985891B2 (en) 2016-04-07 2018-05-29 Oracle International Corporation Congestion management in distributed systems using autonomous self-regulation
US10461864B2 (en) 2016-04-14 2019-10-29 Calix, Inc. Channel bonding techniques in a network
JP6750985B2 (ja) 2016-04-15 2020-09-02 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ 通信装置および通信方法
US10454830B2 (en) 2016-05-05 2019-10-22 City University Of Hong Kong System and method for load balancing in a data network
US20180284746A1 (en) 2016-05-09 2018-10-04 StrongForce IoT Portfolio 2016, LLC Methods and systems for data collection optimization in an industrial internet of things environment
CN107493238A (zh) * 2016-06-13 2017-12-19 华为技术有限公司 一种网络拥塞控制方法、设备及系统
US10430374B2 (en) 2016-06-29 2019-10-01 Mellanox Technologies, Ltd. Selective acknowledgement of RDMA packets
US10331590B2 (en) 2016-06-30 2019-06-25 Intel Corporation Graphics processing unit (GPU) as a programmable packet transfer mechanism
US10305805B2 (en) 2016-07-01 2019-05-28 Intel Corporation Technologies for adaptive routing using aggregated congestion information
US10432532B2 (en) 2016-07-12 2019-10-01 Cisco Technology, Inc. Dynamically pinning micro-service to uplink port
US20180026878A1 (en) 2016-07-24 2018-01-25 Mellanox Technologies Tlv Ltd. Scalable deadlock-free deterministic minimal-path routing for dragonfly networks
US10419808B2 (en) 2016-09-08 2019-09-17 Gvbb Holdings S.A.R.L. System and method for scalable physical layer flow of packetized media streams
US10715446B2 (en) 2016-09-12 2020-07-14 Huawei Technologies Co., Ltd. Methods and systems for data center load balancing
US10061613B1 (en) 2016-09-23 2018-08-28 Amazon Technologies, Inc. Idempotent task execution in on-demand network code execution systems
US10623526B2 (en) 2016-10-03 2020-04-14 Lenovo Enterprise Solutions (Singapore) Pte. Ltd. Dynamically configuring multi-mode hardware components based on workload requirements
US10936533B2 (en) * 2016-10-18 2021-03-02 Advanced Micro Devices, Inc. GPU remote communication with triggered operations
US20180115469A1 (en) 2016-10-21 2018-04-26 Forward Networks, Inc. Systems and methods for an interactive network analysis platform
US10397058B2 (en) * 2016-10-31 2019-08-27 Cisco Technology, Inc. Full path diversity for virtual acess point (VAP) enabled networks
US10656972B2 (en) 2016-11-10 2020-05-19 International Business Machines Corporation Managing idempotent operations while interacting with a system of record
US10425327B2 (en) 2016-11-10 2019-09-24 Argela Yazilim Ve Bilisim Teknolojileri San Ve Tic. A.S. System and method for routing in software defined networks using a flow header
US10084687B1 (en) * 2016-11-17 2018-09-25 Barefoot Networks, Inc. Weighted-cost multi-pathing using range lookups
US20180150256A1 (en) 2016-11-29 2018-05-31 Intel Corporation Technologies for data deduplication in disaggregated architectures
US10423511B2 (en) 2016-11-29 2019-09-24 International Business Machines Corporation Packet flow tracing in a parallel processor complex
US10171369B2 (en) 2016-12-22 2019-01-01 Huawei Technologies Co., Ltd. Systems and methods for buffer management
US11474736B2 (en) 2016-12-29 2022-10-18 Intel Corporation Network interface controller with non-volatile random access memory write packet log
US10320677B2 (en) 2017-01-02 2019-06-11 Microsoft Technology Licensing, Llc Flow control and congestion management for acceleration components configured to accelerate a service
US10326696B2 (en) 2017-01-02 2019-06-18 Microsoft Technology Licensing, Llc Transmission of messages by acceleration components configured to accelerate a service
US10454835B2 (en) 2017-01-20 2019-10-22 Google Llc Device and method for scalable traffic shaping with a time-indexed data structure
US10284472B2 (en) 2017-01-24 2019-05-07 Cisco Technology, Inc. Dynamic and compressed trie for use in route lookup
US10498672B2 (en) 2017-01-30 2019-12-03 Mellanox Technologies, Ltd. Mechanism for distributing MPI tag matching
US10992568B2 (en) 2017-01-31 2021-04-27 Vmware, Inc. High performance software-defined core network
US10402355B2 (en) 2017-02-08 2019-09-03 Texas Instruments Incorporated Apparatus and mechanism to bypass PCIe address translation by using alternative routing
US10389646B2 (en) 2017-02-15 2019-08-20 Mellanox Technologies Tlv Ltd. Evading congestion spreading for victim flows
US10404619B1 (en) 2017-03-05 2019-09-03 Barefoot Networks, Inc. Link aggregation group failover for multicast
US10237206B1 (en) 2017-03-05 2019-03-19 Barefoot Networks, Inc. Equal cost multiple path group failover for multicast
US10360149B2 (en) 2017-03-10 2019-07-23 Oracle International Corporation Data structure store in persistent memory
US10419329B2 (en) 2017-03-30 2019-09-17 Mellanox Technologies Tlv Ltd. Switch-based reliable multicast service
US11556363B2 (en) 2017-03-31 2023-01-17 Intel Corporation Techniques for virtual machine transfer and resource management
US10579412B2 (en) * 2017-04-07 2020-03-03 Nec Corporation Method for operating virtual machines on a virtualization platform and corresponding virtualization platform
US10476629B2 (en) 2017-05-02 2019-11-12 Juniper Networks, Inc. Performing upper layer inspection of a flow based on a sampling rate
CN108809847B (zh) * 2017-05-05 2021-11-19 华为技术有限公司 实现负载均衡的方法、装置和网络系统
WO2018203736A1 (en) * 2017-05-05 2018-11-08 Samsung Electronics Co., Ltd. System, data transmission method and network equipment supporting pdcp duplication function method and device for transferring supplementary uplink carrier configuration information and method and device for performing connection mobility adjustment
US10423357B2 (en) 2017-05-18 2019-09-24 Avago Technologies International Sales Pte. Limited Devices and methods for managing memory buffers
US20180341494A1 (en) 2017-05-26 2018-11-29 Intel Corporation Accelerating network security monitoring
US10862617B2 (en) * 2017-05-30 2020-12-08 Marvell Asia Pte, Ltd. Flowlet scheduler for multicore network processors
US10499376B2 (en) * 2017-06-16 2019-12-03 Kt Corporation Methods for managing resource based on open interface and apparatuses thereof
WO2018232399A2 (en) * 2017-06-16 2018-12-20 Kyungmin Park Distributed unit configuration update
US11197332B2 (en) * 2017-06-19 2021-12-07 Apple Inc. Separation of control plane and user plane in new radio (NR) systems
CN109218215B (zh) * 2017-06-29 2021-11-19 华为技术有限公司 一种报文传输的方法和网络设备
US11362968B2 (en) 2017-06-30 2022-06-14 Intel Corporation Technologies for dynamic batch size management
US10353833B2 (en) 2017-07-11 2019-07-16 International Business Machines Corporation Configurable ordering controller for coupling transactions
US10467159B2 (en) 2017-07-14 2019-11-05 Arm Limited Memory node controller
US10541866B2 (en) 2017-07-25 2020-01-21 Cisco Technology, Inc. Detecting and resolving multicast traffic performance issues
US9853900B1 (en) 2017-08-07 2017-12-26 Mellanox Technologies Tlv Ltd. Using consistent hashing for ECMP routing
KR102380619B1 (ko) * 2017-08-11 2022-03-30 삼성전자 주식회사 이동 통신 시스템 망에서 혼잡 제어를 효율적으로 수행하는 방법 및 장치
US10498631B2 (en) 2017-08-15 2019-12-03 Hewlett Packard Enterprise Development Lp Routing packets using distance classes
US10374943B2 (en) * 2017-08-16 2019-08-06 Hewlett Packard Enterprise Development Lp Routing packets in dimensional order in multidimensional networks
US20190058663A1 (en) 2017-08-18 2019-02-21 Futurewei Technologies, Inc. Flowlet-Based Load Balancing
US10693787B2 (en) 2017-08-25 2020-06-23 Intel Corporation Throttling for bandwidth imbalanced data transfers
WO2019043435A1 (en) * 2017-08-30 2019-03-07 Telefonaktiebolaget Lm Ericsson (Publ) PACKET TRACKING METHOD AND SYSTEM IN SOFTWARE-DEFINED NETWORKS
US20190044809A1 (en) 2017-08-30 2019-02-07 Intel Corporation Technologies for managing a flexible host interface of a network interface controller
JP6897434B2 (ja) 2017-08-31 2021-06-30 富士通株式会社 情報処理システム、情報処理装置及び情報処理プログラム
US11194753B2 (en) 2017-09-01 2021-12-07 Intel Corporation Platform interface layer and protocol for accelerators
JP6833644B2 (ja) 2017-09-13 2021-02-24 株式会社東芝 転送装置、転送方法及びプログラム
US10880204B1 (en) * 2017-09-26 2020-12-29 Amazon Technologies, Inc. Low latency access for storage using multiple paths
US10789011B2 (en) 2017-09-27 2020-09-29 Alibaba Group Holding Limited Performance enhancement of a storage device using an integrated controller-buffer
WO2019068013A1 (en) 2017-09-29 2019-04-04 Fungible, Inc. FABRIC CONTROL PROTOCOL FOR DATA CENTER NETWORKS WITH PACKAGING OF PACKETS ON MULTIPLE ALTERNATIVE DATA PATHWAYS
CN111164938A (zh) 2017-09-29 2020-05-15 芬基波尔有限责任公司 使用选择性多路径分组流喷射的弹性网络通信
US10200279B1 (en) 2017-10-03 2019-02-05 Amer Omar Aljaedi Tracer of traffic trajectories in data center networks
US20190108332A1 (en) 2017-10-06 2019-04-11 Elwha Llc Taint injection and tracking
CN109660463A (zh) 2017-10-11 2019-04-19 华为技术有限公司 一种拥塞流识别方法及网络设备
US11502948B2 (en) 2017-10-16 2022-11-15 Mellanox Technologies, Ltd. Computational accelerator for storage operations
WO2019084970A1 (zh) 2017-11-06 2019-05-09 华为技术有限公司 报文转发方法、转发设备和网络设备
US10841243B2 (en) 2017-11-08 2020-11-17 Mellanox Technologies, Ltd. NIC with programmable pipeline
CN109936510B (zh) 2017-12-15 2022-11-15 微软技术许可有限责任公司 多路径rdma传输
KR101850749B1 (ko) 2017-12-18 2018-04-20 주식회사 에프아이시스 멀티 코어 기반 nic에서 동적 패킷 버퍼 할당 방법
US10552344B2 (en) 2017-12-26 2020-02-04 Intel Corporation Unblock instruction to reverse page block during paging
US11157336B2 (en) 2017-12-30 2021-10-26 Intel Corporation Technologies for extending triggered operations
US11277350B2 (en) 2018-01-09 2022-03-15 Intel Corporation Communication of a large message using multiple network interface controllers
CA3088790C (en) * 2018-02-15 2024-04-09 Vitec, Inc. Distribution and playback of media content
US10986021B2 (en) 2018-03-06 2021-04-20 International Business Machines Corporation Flow management in networks
US11082347B2 (en) * 2018-03-26 2021-08-03 Nvidia Corporation Techniques for reducing congestion in a computer network
US10789194B2 (en) 2018-03-26 2020-09-29 Nvidia Corporation Techniques for efficiently synchronizing data transmissions on a network
CN110324249B (zh) 2018-03-28 2023-05-26 清华大学 一种蜻蜓网络架构及其组播路由方法
US20190044872A1 (en) 2018-03-30 2019-02-07 Intel Corporation Technologies for targeted flow control recovery
US20190044827A1 (en) 2018-03-30 2019-02-07 Intel Corporatoin Communication of a message using a network interface controller on a subnet
US10567307B2 (en) 2018-04-27 2020-02-18 Avago Technologies International Sales Pte. Limited Traffic management for high-bandwidth switching
US10789200B2 (en) * 2018-06-01 2020-09-29 Dell Products L.P. Server message block remote direct memory access persistent memory dialect
WO2019239171A1 (en) * 2018-06-14 2019-12-19 Nokia Solutions And Networks Oy Flow-specific fast rerouting of source routed packets
US10958587B2 (en) 2018-07-24 2021-03-23 Intel Corporation Transmission latency reduction
US11556437B2 (en) 2018-08-22 2023-01-17 Intel Corporation Live migration of virtual devices in a scalable input/output (I/O) virtualization (S-IOV) architecture
US11102129B2 (en) 2018-09-09 2021-08-24 Mellanox Technologies, Ltd. Adjusting rate of outgoing data requests for avoiding incast congestion
US11444886B1 (en) 2018-09-21 2022-09-13 Marvell Asia Pte Ltd Out of order packet buffer selection
US10802828B1 (en) 2018-09-27 2020-10-13 Amazon Technologies, Inc. Instruction memory
US10820057B2 (en) 2018-11-07 2020-10-27 Nvidia Corp. Scalable light-weight protocols for wire-speed packet ordering
EP3877854A4 (en) 2018-11-08 2022-08-10 INTEL Corporation FUNCTION AS A SERVICE (FAAS) SYSTEM ENHANCEMENTS
US11108704B2 (en) 2018-12-04 2021-08-31 Nvidia Corp. Use of stashing buffers to improve the efficiency of crossbar switches
US11416749B2 (en) 2018-12-11 2022-08-16 Amazon Technologies, Inc. Execution synchronization and tracking
US10754816B2 (en) 2018-12-21 2020-08-25 Intel Corporation Time sensitive networking device
US11068412B2 (en) * 2019-02-22 2021-07-20 Microsoft Technology Licensing, Llc RDMA transport with hardware integration
US11025564B2 (en) 2019-02-22 2021-06-01 Microsoft Technology Licensing, Llc RDMA transport with hardware integration and out of order placement
US11805065B2 (en) 2019-02-27 2023-10-31 Intel Corporation Scalable traffic management using one or more processor cores for multiple levels of quality of service
US11743240B2 (en) 2019-03-08 2023-08-29 Intel Corporation Secure stream protocol for serial interconnect
US10970238B2 (en) 2019-04-19 2021-04-06 Intel Corporation Non-posted write transactions for a computer bus
US11099891B2 (en) * 2019-04-22 2021-08-24 International Business Machines Corporation Scheduling requests based on resource information
US11088967B2 (en) 2019-04-26 2021-08-10 Intel Corporation Shared resources for multiple communication traffics
US10922250B2 (en) 2019-04-30 2021-02-16 Microsoft Technology Licensing, Llc Monitoring and steering service requests to acceleration components
US10931588B1 (en) * 2019-05-10 2021-02-23 Innovium, Inc. Network switch with integrated compute subsystem for distributed artificial intelligence and other applications
US10740243B1 (en) * 2019-05-13 2020-08-11 Western Digital Technologies, Inc. Storage system and method for preventing head-of-line blocking in a completion path
US20200364088A1 (en) * 2019-05-16 2020-11-19 Nvidia Corporation Resource sharing by two or more heterogeneous processing cores
WO2020236275A1 (en) * 2019-05-23 2020-11-26 Cray Inc. System and method for facilitating dynamic command management in a network interface controller (nic)
US11381515B2 (en) 2019-06-28 2022-07-05 Intel Corporation On-demand packet queuing in a network device
US11128561B1 (en) 2019-07-29 2021-09-21 Innovium, Inc. Auto load balancing
US11057318B1 (en) * 2019-08-27 2021-07-06 Innovium, Inc. Distributed artificial intelligence extension modules for network switches
CN110601888B (zh) 2019-09-10 2020-11-06 清华大学 一种时间敏感网络中确定性故障检测与定位方法及系统
WO2021050883A1 (en) 2019-09-12 2021-03-18 Oracle International Corporation Accelerated building and probing of hash tables using symmetric vector processing
US11178042B2 (en) * 2019-10-14 2021-11-16 Red Hat, Inc. Protocol and state analysis in a dynamic routing network
US11700206B2 (en) 2019-11-19 2023-07-11 Oracle International Corporation System and method for supporting RDMA bandwidth restrictions in a private fabric in a high performance computing environment
US11451493B2 (en) 2021-01-06 2022-09-20 Mellanox Technologies, Ltd. Connection management in a network adapter
US20220311711A1 (en) * 2021-09-23 2022-09-29 Intel Corporation Congestion control based on network telemetry

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