公开(公告)号：US10862813B2

公开(公告)日：2020-12-08

申请号：US16172521

申请日：2018-10-26

申请人： Dell Products L.P.

发明人： Anoop Ghanwani ,  Raja Sathianarayan Jayakumar

IPC分类号： H04L12/835 ,  H04L12/801 ,  H04L12/26 ,  H04L12/851

摘要： A microburst visibility system includes a switch device coupled to each sender device(s) and receiver device(s). The switch device receives flows transmitted by the sender device(s) to the receiver device(s). For each flow that include data packets that are stored in a first queue, the switch device provides a first queue identifier for the first queue in a flow record associated with that flow and modifies, for each data packet that is transmitted as part of that flow, flow information in data packet counter(s) that are associated with the first queue identifier in the flow record associated with that flow. When the switch device detects a microburst in the first queue, it captures the flow information in each data packet counter that is associated with the first queue identifier in each of the flow records included in the switch device, and provides it for analysis.

公开(公告)号：US09654376B2

公开(公告)日：2017-05-16

申请号：US15092299

申请日：2016-04-06

申请人： DELL PRODUCTS L.P.

发明人： Sam J. Lee ,  Anoop Ghanwani ,  Thomas Kelley Chenault

IPC分类号： H04L12/26 ,  H04L12/24

CPC分类号： H04L43/50 ,  H04L41/0896 ,  H04L43/0811 ,  H04L43/0817 ,  Y02D30/30

摘要： A system and method of managing virtual link state includes receiving, at a first device, a first status update associated with the virtual link from a second device. The first status update includes a first management status value (RM) and a first operational status value (RO). The system and method further includes determining a second management status value (LM) associated with the first device, determining a second operational status value (LO) based on the first status update and the RM, transmitting a second status update for the virtual link to the second device, the second status update including the LM and the LO, and determining a state of the virtual link based on the RM, the RO, the LM, and the LO. The first device is configured to be coupled to the second device using a physical network link partitioned into a plurality of first virtual links including the virtual link.

公开(公告)号：US09548872B2

公开(公告)日：2017-01-17

申请号：US14497869

申请日：2014-09-26

申请人： DELL PRODUCTS L.P.

发明人： Anoop Ghanwani ,  Shivakumar Sundaram

IPC分类号： G06F11/00 ,  H04J1/16 ,  H04L1/00 ,  H04L12/26 ,  H04L12/44 ,  H04L12/911 ,  H04L12/825 ,  H04L12/933

CPC分类号： H04L12/44 ,  H04L43/026 ,  H04L43/0894 ,  H04L47/22 ,  H04L47/25 ,  H04L47/821 ,  H04L49/10

摘要： Embodiments of the present invention provide methods and system to reduce needless data traffic in leaf-spine switch fabric. In embodiments, in a static solution, data rates of data flows having a common destination port may be measured and responsive to the data flows having a combined data rate that exceeding a rate limit of the common destination port, one or more of the data flows may be limited. Embodiments may also comprise a global scheduler to provide dynamic data rate controls of traffic flows from source ports to destination ports in which to reduce the handling of data traffic that would otherwise be discarded due to oversubscription.

摘要翻译： 本发明的实施例提供了减少叶脊交换结构中不必要的数据流量的方法和系统。 在实施例中，在静态解决方案中，可以测量具有公共目的地端口的数据流的数据速率，并响应于具有超过公共目的地端口的速率限制的组合数据速率的数据流，数据流中的一个或多个 可能受到限制 实施例还可以包括全局调度器，以提供从源端口到目的地端口的业务流的动态数据速率控制，其中减少由于超额预订而否则将被丢弃的数据业务的处理。

公开(公告)号：US20160308761A1

公开(公告)日：2016-10-20

申请号：US14689609

申请日：2015-04-17

申请人： DELL PRODUCTS L.P.

发明人： Anoop Ghanwani ,  Sanjay Sane ,  Shivakumar Sundaram ,  Krishnamurthy Subramanian

IPC分类号： H04L12/723

CPC分类号： H04L45/50 ,  H04L45/122 ,  H04L45/52 ,  H04L45/54

摘要： Aspects of the present invention include increasing the number of hops that can be specifically defined in a multiprotocol label switching stack. In embodiments of the present invention, a label space can be used to represent two or more labels. In embodiments of the present invention, the label space can be used by concatenating two or more labels and redefining the multiprotocol label switching stack operations and outgoing labels.

摘要翻译： 本发明的方面包括增加可以在多协议标签交换堆栈中具体定义的跳数。 在本发明的实施例中，可以使用标签空间来表示两个或更多个标签。 在本发明的实施例中，可以通过连接两个或更多个标签并重新定义多协议标签交换堆栈操作和输出标签来使用标签空间。

公开(公告)号：US09344336B2

公开(公告)日：2016-05-17

申请号：US14054590

申请日：2013-10-15

申请人： DELL PRODUCTS L.P.

发明人： Sam J. Lee ,  Anoop Ghanwani ,  Thomas Kelley Chenault

IPC分类号： H04L12/24 ,  H04L12/26

CPC分类号： H04L43/50 ,  H04L41/0896 ,  H04L43/0811 ,  H04L43/0817 ,  Y02D30/30

摘要： A system and method of managing virtual link state includes receiving, at a first device, a first status update associated with the virtual link from a second device. The first status update includes a first management status value (RM) and a first operational status value (RO). The system and method further includes determining a second management status value (LM) associated with the first device, determining a second operational status value (LO) based on the first status update and the RM, transmitting a second status update for the virtual link to the second device, the second status update including the LM and the LO, and determining a state of the virtual link based on the RM, the RO, the LM, and the LO. The first device is configured to be coupled to the second device using a physical network link partitioned into a plurality of first virtual links including the virtual link.

摘要翻译： 管理虚拟链路状态的系统和方法包括在第一设备处从第二设备接收与虚拟链路相关联的第一状态更新。 第一状态更新包括第一管理状态值（RM）和第一操作状态值（RO）。 该系统和方法还包括确定与第一设备相关联的第二管理状态值（LM），基于第一状态更新和RM确定第二操作状态值（LO），向虚拟链路发送第二状态更新 第二设备，包括LM和LO的第二状态更新，以及基于RM，RO，LM和LO来确定虚拟链路的状态。 第一设备被配置为使用分割成包括虚拟链路的多个第一虚拟链路的物理网络链路来耦合到第二设备。

公开(公告)号：US20160094450A1

公开(公告)日：2016-03-31

申请号：US14497869

申请日：2014-09-26

申请人： DELL PRODUCTS L.P.

发明人： Anoop Ghanwani ,  Shivakumar Sundaram

IPC分类号： H04L12/803 ,  H04L12/725 ,  H04L12/44 ,  H04L12/26 ,  H04L12/911

CPC分类号： H04L12/44 ,  H04L43/026 ,  H04L43/0894 ,  H04L47/22 ,  H04L47/25 ,  H04L47/821 ,  H04L49/10

摘要： Embodiments of the present invention provide methods and system to reduce needless data traffic in leaf-spine switch fabric. In embodiments, in a static solution, data rates of data flows having a common destination port may be measured and responsive to the data flows having a combined data rate that exceeding a rate limit of the common destination port, one or more of the data flows may be limited. Embodiments may also comprise a global scheduler to provide dynamic data rate controls of traffic flows from source ports to destination ports in which to reduce the handling of data traffic that would otherwise be discarded due to oversubscription.

摘要翻译： 本发明的实施例提供了减少叶脊交换结构中不必要的数据流量的方法和系统。 在实施例中，在静态解决方案中，可以测量具有公共目的地端口的数据流的数据速率，并响应于具有超过公共目的地端口的速率限制的组合数据速率的数据流，数据流中的一个或多个 可能受到限制 实施例还可以包括全局调度器，以提供从源端口到目的地端口的业务流的动态数据速率控制，其中减少由于超额预订而否则将被丢弃的数据业务的处理。

公开(公告)号：US20150103677A1

公开(公告)日：2015-04-16

申请号：US14054590

申请日：2013-10-15

申请人： Dell Products L.P.

发明人： Sam J. Lee ,  Anoop Ghanwani ,  Thomas Kelley Chenault

IPC分类号： H04L12/26

CPC分类号： H04L43/50 ,  H04L41/0896 ,  H04L43/0811 ,  H04L43/0817 ,  Y02D30/30

摘要： A system and method of managing virtual link state includes receiving, at a first device, a first status update associated with the virtual link from a second device. The first status update includes a first management status value (RM) and a first operational status value (RO). The system and method further includes determining a second management status value (LM) associated with the first device, determining a second operational status value (LO) based on the first status update and the RM, transmitting a second status update for the virtual link to the second device, the second status update including the LM and the LO, and determining a state of the virtual link based on the RM, the RO, the LM, and the LO. The first device is configured to be coupled to the second device using a physical network link partitioned into a plurality of first virtual links including the virtual link

摘要翻译： 管理虚拟链路状态的系统和方法包括在第一设备处从第二设备接收与虚拟链路相关联的第一状态更新。 第一状态更新包括第一管理状态值（RM）和第一操作状态值（RO）。 该系统和方法还包括确定与第一设备相关联的第二管理状态值（LM），基于第一状态更新和RM确定第二操作状态值（LO），向虚拟链路发送第二状态更新 第二设备，包括LM和LO的第二状态更新，以及基于RM，RO，LM和LO来确定虚拟链路的状态。 第一设备被配置为使用分割成包括虚拟链路的多个第一虚拟链路的物理网络链路来耦合到第二设备

公开(公告)号：US20210029036A1

公开(公告)日：2021-01-28

申请号：US16523838

申请日：2019-07-26

申请人： Dell Products L.P.

发明人： Anoop Ghanwani ,  Raja Sathianarayan Jayakumar ,  Kannan Karuppiah ,  Chetput L. Venkataraghavan

IPC分类号： H04L12/743 ,  H04L12/721 ,  H04L12/715 ,  H04L12/46

摘要： A hash collision mitigation system includes a source device coupled to a destination device by a networking device. The networking device receives a first packet from the source device, and uses first packet information included in the first packet to perform a hash operation on the first packet and generate a hash value. The networking device then determines that the hash value has caused a hash collision with a first hash value forwarding entry in a hash forwarding table in the networking device and, in response, generates a first Policy Based Routing (PBR) entry for the first packet. The first PBR entry is configured to provide for the forwarding of at least one second packet received from the destination device and directed to the source device, and that first PBR is stored in a Ternary Content Addressable Memory (TCAM) in the networking device.

公开(公告)号：US09698995B2

公开(公告)日：2017-07-04

申请号：US15136747

申请日：2016-04-22

申请人： Dell Products L.P.

发明人： Anoop Ghanwani ,  Krishnamurthy Subramanian ,  Mohnish Anumala ,  Shivakumar Sundaram ,  Pathangi Janardhanan

IPC分类号： H04L12/28 ,  H04L12/18 ,  G06F9/455 ,  H04L12/755 ,  H04L29/12 ,  H04L12/931 ,  G06F9/50

CPC分类号： H04L12/18 ,  G06F9/45558 ,  G06F9/5072 ,  G06F2009/45595 ,  H04L12/185 ,  H04L45/021 ,  H04L49/201 ,  H04L49/70 ,  H04L61/103

摘要： An information handling system is provided. The information handling system includes a first hypervisor running on a first host and a second hypervisor running on a second host. The first hypervisor managing a first virtual switch, and the second hypervisor managing a second virtual switch. The information handling system also includes a plurality of virtual machines (VMs), including a first VM, which is part of a first tenant, running on the first host, and a second VM, part of a second tenant, running on the second host. The first virtual switch has a mapping in memory that maps a customer-specific multicast IP address, used by the plurality of VMs to indicate a multicast group that includes VMs on the first and second tenants, to a global multicast IP address used by the first and second hosts.

公开(公告)号：US20160149759A1

公开(公告)日：2016-05-26

申请号：US15009559

申请日：2016-01-28

申请人： DELL PRODUCTS L.P.

发明人： Mohnish Anumala ,  Anoop Ghanwani ,  Krishnamurthy Subramanian ,  Janardhanan Pathangi Narasimhan ,  Shivakumar Sundaram

IPC分类号： H04L12/24 ,  H04L12/709

CPC分类号： H04L41/083 ,  H04L12/18 ,  H04L41/0663 ,  H04L41/12 ,  H04L45/16 ,  H04L45/245 ,  H04L45/586 ,  Y02D50/30

摘要： Aspects of the present invention include an n-node link aggregation group (LAG) system comprising a set of N nodes collectively provide a logical fabric-level view that is consistent across the set of N nodes. Embodiments of the n-node system comprise a control plane mechanism to provide Layer 2 multipathing between access network devices and the core network. The n-node system provides a loop-free topology with active-active load-sharing of uplinks from access to the core.

摘要翻译： 本发明的方面包括包括一组N个节点的n节点链路聚合组（LAG）系统共同提供在所述N个节点集合中一致的逻辑体系级视图。 n节点系统的实施例包括用于在接入网络设备和核心网络之间提供第2层多路径的控制平面机制。 n节点系统提供了一个无环路拓扑，具有从接入到核心的上行链路的主动 - 主动负载共享。