公开(公告)号：US09112786B2

公开(公告)日：2015-08-18

申请号：US13902463

申请日：2013-05-24

Applicant: Pradeep Sindhu ,  Debashis Basu ,  Jayabharat Boddu ,  Avanindra Godbole

Inventor： Pradeep Sindhu ,  Debashis Basu ,  Jayabharat Boddu ,  Avanindra Godbole

IPC: G01R31/08 ,  H04L12/801 ,  H04L12/835 ,  H04L12/823

CPC classification number: H04L47/12 ,  H04L47/10 ,  H04L47/11 ,  H04L47/29 ,  H04L47/30 ,  H04L47/32 ,  H04L47/35

Abstract: A system provides congestion control and includes multiple queues that temporarily store data and a drop engine. The system associates a value with each of the queues, where each of the values relates to an amount of memory associated with the queue. The drop engine compares the value associated with a particular one of the queues to one or more programmable thresholds and selectively performs explicit congestion notification or packet dropping on data in the particular queue based on a result of the comparison.

Abstract translation: 系统提供拥塞控制，并且包括临时存储数据的多个队列和丢弃引擎。 该系统将值与每个队列相关联，其中每个值与与队列相关联的内存量相关。 丢包引擎将与特定队列相关联的值与一个或多个可编程阈值进行比较，并且基于比较的结果选择性地对特定队列中的数据进行显式拥塞通知或分组丢弃。

公开(公告)号：US08880856B1

公开(公告)日：2014-11-04

申请号：US12486114

申请日：2009-06-17

Applicant: Jean-Marc Frailong ,  Pradeep Sindhu ,  Jeffrey G. Libby ,  Jian Hui Huang ,  Rajesh Nair ,  John Keen

Inventor： Jean-Marc Frailong ,  Pradeep Sindhu ,  Jeffrey G. Libby ,  Jian Hui Huang ,  Rajesh Nair ,  John Keen

IPC: G06F15/00

CPC classification number: G06F9/28 ,  G06F7/57 ,  G06F9/30 ,  G06F9/3001 ,  G06F9/30018 ,  G06F9/30072 ,  G06F9/30145 ,  G06F9/3859 ,  G06F9/3893 ,  G06F15/00

Abstract: A processor may include a conditional arithmetic logic unit and a main arithmetic logic unit. The conditional arithmetic logic unit may perform a first arithmetic logic operation to generate a first result, and output the result. The main arithmetic logic unit may select input buses among a plurality of data buses that carry the first result from the conditional arithmetic logic unit, perform a second arithmetic logic operation on data provided by the selected input buses to generate a second result, and write the second result in a storage component.

Abstract translation: 处理器可以包括条件算术逻辑单元和主算术逻辑单元。 条件算术逻辑单元可以执行第一算术逻辑运算以产生第一结果，并输出结果。 主算术逻辑单元可以选择携带来自条件算术逻辑单元的第一结果的多个数据总线中的输入总线，对由所选择的输入总线提供的数据执行第二运算逻辑运算以产生第二结果，并写入 第二个结果是存储组件。

公开(公告)号：US08605722B1

公开(公告)日：2013-12-10

申请号：US12759850

申请日：2010-04-14

Applicant: Pradeep Sindhu ,  Jean-Marc Frailong ,  Sarin Thomas ,  Srihari Vegesna ,  David J. Ofelt ,  Chang-Hong Wu

Inventor： Pradeep Sindhu ,  Jean-Marc Frailong ,  Sarin Thomas ,  Srihari Vegesna ,  David J. Ofelt ,  Chang-Hong Wu

IPC: H04L12/28

CPC classification number: H04L45/16 ,  H04L12/1863 ,  H04L49/201 ,  H04L49/90 ,  H04L67/1095

Abstract: In general, the invention is directed to techniques for reducing deadlocks that may arise when performing fabric replication. For example, as described herein, a network device includes packet replicators that each comprises a plurality of resource partitions. A replication data structure for a packet received by the network device includes packet replicator nodes that are arranged hierarchically to occupy one or more levels of the replication data structure. Each of the resource partitions in each of the plurality of packet replicators is associated with a different level of the replication data structure. The packet replicators replicate the packet according to the replication data structure, and each of the packet replicators handles the packet using the one of the resource partitions of the packet replicator that is associated with the level of the replication data structure occupied by the node that corresponds to that particular packet replicator.

公开(公告)号：US08451852B2

公开(公告)日：2013-05-28

申请号：US12873618

申请日：2010-09-01

Applicant: Pradeep Sindhu ,  Debashis Basu ,  Jayabharat Boddu ,  Avanindra Godbole

Inventor： Pradeep Sindhu ,  Debashis Basu ,  Jayabharat Boddu ,  Avanindra Godbole

IPC: H04L12/28

CPC classification number: H04L47/12 ,  H04L47/10 ,  H04L47/11 ,  H04L47/29 ,  H04L47/30 ,  H04L47/32 ,  H04L47/35

Abstract: A system provides congestion control and includes multiple queues that temporarily store data and a drop engine. The system associates a value with each of the queues, where each of the values relates to an amount of memory associated with the queue. The drop engine compares the value associated with a particular one of the queues to one or more programmable thresholds and selectively performs explicit congestion notification or packet dropping on data in the particular queue based on a result of the comparison.

公开(公告)号：US08442048B2

公开(公告)日：2013-05-14

申请号：US12612210

申请日：2009-11-04

Applicant: Gunes Aybay ,  Pradeep Sindhu ,  Anjan Venkatramani

Inventor： Gunes Aybay ,  Pradeep Sindhu ,  Anjan Venkatramani

IPC: H04L12/28 ,  H04L12/56 ,  H04L12/26

CPC classification number: H04L41/0813 ,  H04L41/0806 ,  H04L43/0817 ,  H04L45/306 ,  H04L47/12 ,  H04L49/35 ,  H04L49/65 ,  H04L49/70 ,  H04L63/0263

Abstract: In one embodiment, a method includes sending a configuration signal to a virtual network switch module within a control plane of a communications network. The configuration signal is configured to define a first network rule at the virtual network switch module. The method also includes configuring a packet forwarding module such that the packet forwarding module implements a second network rule, and receiving status information from the virtual network switch module and status information from the packet forwarding module. The status information is received via the control plane.

公开(公告)号：US08428458B2

公开(公告)日：2013-04-23

申请号：US13284514

申请日：2011-10-28

Applicant: Pradeep Sindhu

Inventor： Pradeep Sindhu

IPC: H04J14/00

CPC classification number: H04J14/0227 ,  H04J14/0241 ,  H04J14/0257 ,  H04J14/0267 ,  H04J14/028 ,  H04L45/62 ,  H04L49/101 ,  H04L49/102 ,  H04L49/25 ,  H04L49/40 ,  H04Q11/0005 ,  H04Q2011/0039 ,  H04Q2011/0052

Abstract: A multi-chassis network device includes a plurality of nodes that operate as a single device within the network and a switch fabric that forwards data plane packets between the plurality of nodes. The switch fabric includes a set of multiplexed optical interconnects coupling the nodes. For example, a multi-chassis router includes a plurality of routing nodes that operate as a single router within a network and a switch fabric that forwards packets between the plurality of routing nodes. The switch fabric includes at least one multiplexed optical interconnect coupling the routing nodes. The nodes of the multi-chassis router may direct portions of the optical signal over the multiplexed optical interconnect to different each other using wave-division multiplexing.

Abstract translation: 多机箱网络设备包括作为网络内的单个设备操作的多个节点以及在多个节点之间转发数据平面分组的交换结构。 交换结构包括耦合节点的一组复用光互连。 例如，多机架路由器包括多个路由节点，其在网络内作为单个路由器运行，并且交换结构在多个路由节点之间转发分组。 交换结构包括耦合路由节点的至少一个复用光互连。 多机架式路由器的节点可以使用波分复用将多路复用光互连上的光信号的部分引导到彼此不同。

公开(公告)号：US20130083691A1

公开(公告)日：2013-04-04

申请号：US13252854

申请日：2011-10-04

Applicant: James MURPHY ,  Nischal SHETH ,  Abhijit CHOUDHURY ,  Raghavendra MALLYA ,  Pranay POGDE ,  Phalguni NANDA ,  Jayabharat BODDU ,  Pradeep SINDHU

Inventor： James MURPHY ,  Nischal SHETH ,  Abhijit CHOUDHURY ,  Raghavendra MALLYA ,  Pranay POGDE ,  Phalguni NANDA ,  Jayabharat BODDU ,  Pradeep SINDHU

IPC: H04L12/28

CPC classification number: H04L41/0809 ,  H04L41/0853 ,  H04L63/162 ,  H04W12/06 ,  H04W84/18

Abstract: In some embodiments, an apparatus includes a network node operatively coupled within a network. The network node is configured to send a first authentication message upon boot up, and receive, in response to the first authentication message, a second authentication message configured to be used to authenticate the network node. The network node is configured to send a first discovery message, and receive, based on the first discovery message, a second discovery message configured to be used by the network node to identify an address of the network node and an address of a core network node within the network. The network node is configured to set up a control-plane tunnel to the core network node based on the address of the network node and the address for the core network node and receive configuration information from the core network node through the control-plane tunnel.

Abstract translation: 在一些实施例中，一种装置包括可操作地耦合在网络内的网络节点。 网络节点被配置为在启动时发送第一认证消息，并且响应于第一认证消息接收被配置为用于认证网络节点的第二认证消息。 网络节点被配置为发送第一发现消息，并且基于第一发现消息接收第二发现消息，其被配置为被网络节点用于识别网络节点的地址和核心网络节点的地址 在网络内。 网络节点被配置为基于网络节点的地址和核心网络节点的地址来建立到核心网络节点的控制平面隧道，并通过控制平面隧道从核心网络节点接收配置信息。

公开(公告)号：US20120263178A1

公开(公告)日：2012-10-18

申请号：US13532940

申请日：2012-06-26

Applicant: Pradeep SINDHU ,  Debashis BASU ,  Pankaj PATEL ,  Raymond LIM ,  Avanindra GODBOLE ,  Tatao CHUANG ,  Chi-Chung K. CHEN ,  Jeffrey G. LIBBY ,  Dennis FERGUSON ,  Philippe LACROUTE ,  Gerald CHEUNG

Inventor： Pradeep SINDHU ,  Debashis BASU ,  Pankaj PATEL ,  Raymond LIM ,  Avanindra GODBOLE ,  Tatao CHUANG ,  Chi-Chung K. CHEN ,  Jeffrey G. LIBBY ,  Dennis FERGUSON ,  Philippe LACROUTE ,  Gerald CHEUNG

IPC: H04L12/56

CPC classification number: H04L12/4633 ,  H04L12/66

Abstract: A network device constructs a notification corresponding to a received multicast data unit, where the notification includes administrative data associated with the multicast data unit that does not include a payload of the multicast data unit. The network device replicates the notification at at least three different processing elements at different locations in a processing path of the network device to produce multiple replicated data items and produces a copy of the multicast data unit for each of replicated notifications. The network device forwards each copy of the multicast data unit towards a multicast destination.

Abstract translation: 网络设备构建对应于所接收的多播数据单元的通知，其中通知包括与不包括多播数据单元的有效载荷的多播数据单元相关联的管理数据。 网络设备在网络设备的处理路径中的不同位置处的至少三个不同处理元件处复制通知，以产生多个复制数据项，并为复制的通知中的每一个生成多播数据单元的副本。 网络设备将组播数据单元的每个副本转发到组播目的地。

公开(公告)号：US08233496B2

公开(公告)日：2012-07-31

申请号：US12723172

申请日：2010-03-12

Applicant: Pradeep Sindhu ,  Debashis Basu ,  Pankaj Patel ,  Raymond Lim ,  Avanindra Godbole ,  Tatao Chuang ,  Chi-Chung K. Chen ,  Jeffrey G. Libby ,  Dennis Ferguson ,  Philippe Lacroute ,  Gerald Cheung

Inventor： Pradeep Sindhu ,  Debashis Basu ,  Pankaj Patel ,  Raymond Lim ,  Avanindra Godbole ,  Tatao Chuang ,  Chi-Chung K. Chen ,  Jeffrey G. Libby ,  Dennis Ferguson ,  Philippe Lacroute ,  Gerald Cheung

IPC: H04J3/26

CPC classification number: H04L12/4633 ,  H04L12/66

Abstract: A network device constructs a notification corresponding to a received multicast data unit, where the notification includes administrative data associated with the multicast data unit that does not include a payload of the multicast data unit. The network device replicates the notification at least three different processing elements at different locations in a processing path of the network device to produce multiple replicated data items and produces a copy of the multicast data unit for each of replicated notifications. The network device forwards each copy of the multicast data unit towards a multicast destination.

Abstract translation: 网络设备构建对应于所接收的多播数据单元的通知，其中通知包括与不包括多播数据单元的有效载荷的多播数据单元相关联的管理数据。 网络设备在网络设备的处理路径中的不同位置处至少复制三个不同的处理元件，以产生多个复制数据项，并为每个复制的通知产生多播数据单元的副本。 网络设备将组播数据单元的每个副本转发到组播目的地。

公开(公告)号：US08213308B2

公开(公告)日：2012-07-03

申请号：US12558118

申请日：2009-09-11

Applicant: Avanindra Godbole ,  Arghajit Basu ,  Jean-Marc Frailong ,  Abhijeet Sampatrao Jadav ,  Naveen Jain ,  Pradeep Sindhu

Inventor： Avanindra Godbole ,  Arghajit Basu ,  Jean-Marc Frailong ,  Abhijeet Sampatrao Jadav ,  Naveen Jain ,  Pradeep Sindhu

IPC: H04L1/00

CPC classification number: H04L49/9078 ,  H04L47/12 ,  H04L47/26 ,  H04L47/30 ,  H04L47/52

Abstract: In one embodiment, a processor-readable medium can store code representing instructions that when executed by a processor cause the processor to receive a value representing a congestion level of a receive queue and a value representing a state of a transmit queue. At least a portion of the transmit queue can be defined by a plurality of packets addressed to the receive queue. A rate value for the transmit queue can be defined based on the value representing the congestion level of the receive queue and the value representing the state of the transmit queue. The processor-readable medium can store code representing instructions that when executed by the processor cause the processor to define a suspension time value for the transmit queue based on the value representing the congestion level of the receive queue and the value representing the state of the transmit queue.

Abstract translation: 在一个实施例中，处理器可读介质可以存储表示当由处理器执行时指示处理器接收表示接收队列的拥塞级别的值的代码和表示发送队列的状态的值的代码。 发送队列的至少一部分可以由寻址到接收队列的多个分组来定义。 可以基于表示接收队列的拥塞级别的值和表示发送队列状态的值来定义传输队列的速率值。 处理器可读介质可以存储表示指令的代码，当处理器执行时，该处理器使得处理器基于表示接收队列的拥塞级别的值和发送的状态的值来定义发送队列的暂停时间值 队列。