公开(公告)号：US20140310362A1

公开(公告)日：2014-10-16

申请号：US14246889

申请日：2014-04-07

Applicant: Broadcom Corporation

Inventor： Biju Ravindranatha Babu ,  Puneet Agarwal ,  Mohan Venkatachar Kalkunte

IPC: H04L12/801

CPC classification number: H04L47/33

Abstract: A system forwards congestion management messages to a source host updating the source address in the management message. The system may determine that the congestion management message was triggered responsive to an initial communication that was previously forwarded by the system. The system may use header translation within a single addressing scheme and/or may translate the congestion management message into a different type to support forwarding to the source of the initial communication. The system may use portions of the payload of the congestion management message to determine the source of the initial communication and to derive a different header for the translated congestion management message.

Abstract translation: 系统将拥塞管理消息转发到管理消息中更新源地址的源主机。 系统可以确定响应于先前由系统转发的初始通信来触发拥塞管理消息。 系统可以在单个寻址方案内使用报头转换和/或可以将拥塞管理消息转换成不同类型以支持转发到初始通信的源。 系统可以使用拥塞管理消息的有效载荷的部分来确定初始通信的来源，并且为转换的拥塞管理消息导出不同的报头。

公开(公告)号：US20140219087A1

公开(公告)日：2014-08-07

申请号：US13841966

申请日：2013-03-15

Applicant: BROADCOM CORPORATION

Inventor： William Brad Matthews ,  Vahid Tabatabaee ,  Bruce Hui Kwan ,  Puneet Agarwal

IPC: H04L12/851

CPC classification number: H04L47/2441 ,  H04L47/28 ,  H04L47/31

Abstract: Network devices facilitate flow management through packet marking. The network devices may be switches, routers, bridges, hubs, or any other network device. The packet marking may include analyzing received packets to determine when the received packets meet a marking criterion, and then applying a configurable marking function to mark the packets in a particular way. The marking capability may facilitate deadline aware end-to-end flow management, as one specific example. More generally, the marking capability may facilitate traffic management actions such as visibility actions and flow management actions.

Abstract translation: 网络设备通过分组标记来促进流量管理。 网络设备可以是交换机，路由器，网桥，集线器或任何其他网络设备。 分组标记可以包括分析接收到的分组以确定接收的分组何时满足标记标准，然后应用可配置标记功能以特定方式标记分组。 作为一个具体示例，标记能力可以促进截止期间的端到端流管理。 更一般地，标记能力可以促进诸如可见性动作和流量管理动作之类的交通管理动作。

公开(公告)号：US20140211639A1

公开(公告)日：2014-07-31

申请号：US13839501

申请日：2013-03-15

Applicant: BROADCOM CORPORATION

Inventor： William Brad Matthews ,  Puneet Agarwal

IPC: H04L12/26

CPC classification number: H04L43/10 ,  H04L43/0817 ,  H04L43/12 ,  H04L43/16 ,  H04L43/50 ,  H04L45/02 ,  H04L45/16 ,  H04L45/24 ,  H04L45/72 ,  H04L49/555

Abstract: Network devices facilitate network tracing using tracing packets that travel through the network devices. The network devices may be switches, routers, bridges, hubs, or any other network device. The network tracing may include sending tracing packets down each of multiple routed paths between a source and a destination, at each hop through the network, or through a selected subset of the paths between a source and a destination. The network devices may add tracing information to the tracing packets, which an analysis system may review to determine characteristics of the network and the characteristics of the potentially many paths between a source and a destination.

Abstract translation: 网络设备通过使用通过网络设备传输的跟踪数据包来促进网络跟踪。 网络设备可以是交换机，路由器，网桥，集线器或任何其他网络设备。 网络跟踪可以包括在源和目的地之间的多个路由路径中的每个路由，通过网络的每个跳跃，或者通过源和目的地之间的路径的选定子集来发送跟踪分组。 网络设备可以向跟踪分组添加跟踪信息，分析系统可以审查该跟踪信息以确定网络的特性以及源和目的地之间潜在的许多路径的特征。

公开(公告)号：US20140133483A1

公开(公告)日：2014-05-15

申请号：US13720973

申请日：2012-12-19

Applicant: BROADCOM CORPORATION

Inventor： Brad Matthews ,  Bruce Kwan ,  Puneet Agarwal

IPC: H04L12/56

CPC classification number: H04L49/101 ,  H04L47/25 ,  H04L49/1523 ,  H04L49/253

Abstract: A distributed switch architecture using permutation switching. In one embodiment, the distributed switch architecture facilitates connections between a plurality of ingress nodes and a plurality of egress nodes, wherein each of the plurality of ingress nodes and plurality of egress nodes are coupled to a plurality of ports (e.g., 40 gigabit Ethernet (GbE), 100 GbE, etc.). A plurality of crossbar switch modules are provided that are configured for coupling to a single output from each of the plurality of ingress nodes, and for coupling to a single input from each of the plurality of egress nodes. Permutations of connections for a crossbar switch module are defined by a permutation connection set that is stored in a permutation engine. Each permutation connection in the permutation connection can be designed to couple one of the outputs from the plurality of ingress nodes to one of the inputs from the plurality of ingress nodes, wherein the permutation connection set can ensures that each of the plurality of ingress nodes has an opportunity to connect with each of the plurality of egress nodes.

Abstract translation: 一种使用置换切换的分布式交换机架构。 在一个实施例中，分布式交换机架构便于多个入口节点与多个出口节点之间的连接，其中多个入口节点和多个出口节点中的每一个耦合到多个端口（例如，40千兆位以太网 GbE），100GbE等）。 提供了多个交叉开关模块，其被配置为耦合到来自多个入口节点中的每一个的单个输出，并且用于耦合到来自多个出口节点中的每一个的单个输入。 用于交叉开关模块的连接的排列由存储在排列引擎中的置换连接集定义。 置换连接中的每个置换连接可以被设计成将来自多个入口节点的输出之一耦合到来自多个入口节点的输入之一，其中置换连接集可以确保多个入口节点中的每一个具有 与多个出口节点中的每一个连接的机会。

公开(公告)号：US20140126396A1

公开(公告)日：2014-05-08

申请号：US13847906

申请日：2013-03-20

Applicant: BROADCOM CORPORATION

Inventor： William Brad Matthews ,  Puneet Agarwal ,  Bruce Hui Kwan

IPC: H04L12/26

CPC classification number: G06Q30/0214 ,  G06Q30/0269 ,  H04L41/00 ,  H04L41/12 ,  H04L41/22 ,  H04L43/00 ,  H04L43/045 ,  H04L43/065 ,  H04L43/067 ,  H04L43/0817 ,  H04L43/10 ,  H04L43/106 ,  H04L45/00 ,  H04L47/10 ,  H04L47/20 ,  H04L47/22 ,  H04L47/522

Abstract: Network devices add annotation information to network packets as they travel through the network devices. The network devices may be switches, routers, bridges, hubs, or any other network device. The annotation information may be information specific to the network devices, as opposed to simply the kinds of information available at application servers that receive the network packets. As just a few examples, the annotation information may include switch buffer levels, routing delay, routing parameters affecting the packet, switch identifiers, power consumption, and heat, moisture, or other environmental data.

Abstract translation: 网络设备在网络数据包通过网络设备时添加注释信息。 网络设备可以是交换机，路由器，网桥，集线器或任何其他网络设备。 注释信息可以是网络设备特有的信息，而不是简单地在接收网络分组的应用服务器处可用的信息的种类。 作为仅举几个示例，注释信息可以包括切换缓冲器级别，路由延迟，影响分组的路由参数，切换标识符，功耗以及热，湿度或其他环境数据。

公开(公告)号：US20140098818A1

公开(公告)日：2014-04-10

申请号：US13803918

申请日：2013-03-14

Applicant: BROADCOM CORPORATION

Inventor： William Brad Matthews ,  Puneet Agarwal ,  Bruce Hui Kwan

IPC: H04L12/56

CPC classification number: H04L45/74 ,  H04L47/10 ,  H04L49/3018 ,  H04L49/3027 ,  H04L49/506

Abstract: Processing techniques in a network switch help reduce latency in the delivery of data packets to a recipient. The processing techniques include internal cut-through. The internal cut-through may bypass input port buffers by directly forwarding packet data that has been received to an output port. At the output port, the packet data is buffered for processing and communication out of the switch.

Abstract translation: 网络交换机中的处理技术有助于减少向接收方传送数据包的延迟。 处理技术包括内部切入。 内部切断可以通过直接转发已经接收的分组数据到输出端口来旁路输入端口缓冲器。 在输出端口，数据包数据被缓冲用于进行交换机的处理和通信。

公开(公告)号：US20140098816A1

公开(公告)日：2014-04-10

申请号：US13723045

申请日：2012-12-20

Applicant: BROADCOM CORPORATION

Inventor： Brad Matthews ,  Bruce Kwan ,  Puneet Agarwal

IPC: H04L12/18

CPC classification number: H04L12/18 ,  H04L12/40 ,  H04L12/54 ,  H04L47/10 ,  H04L49/00 ,  H04L49/201 ,  H04L49/25 ,  H04L49/251 ,  H04L49/252 ,  H04L49/3018 ,  H04L49/3027 ,  H04L49/351 ,  H04L51/00

Abstract: A system for multicast switching for distributed devices may include an ingress node including an ingress memory and an egress node including an egress memory, where the ingress node is communicatively coupled to the egress node. The ingress node may be operable to receive a portion of a multicast frame over an ingress port, bypass the ingress memory and provide the portion to the egress node when the portion satisfies an ingress criteria, otherwise receive and store the entire frame in the ingress memory before providing the frame to the egress node. The egress node may be operable to receive the portion from the ingress node, bypass the egress memory for the portion and provide the portion to the first egress port when an egress criteria is satisfied, otherwise receive and store the entire multicast frame in the egress memory before providing the multicast frame to an egress port.

Abstract translation: 用于分布式设备的多播交换系统可以包括入口节点，其包括入口存储器和包括出口存储器的出口节点，其中入口节点通信地耦合到出口节点。 入口节点可以可操作以通过入口端口接收多播帧的一部分，绕过入口存储器，并且当该部分满足入口标准时将该部分提供给出口节点，否则将整个帧接收并存储在入口存储器中 之后将帧提供给出口节点。 出口节点可以可操作以从出入节点接收部分，绕过该部分的出口存储器，并且当满足出口准则时将该部分提供给第一出口端口，否则将整个多播帧存储在出口存储器 之后将多播帧提供给出口端口。

公开(公告)号：US20140086258A1

公开(公告)日：2014-03-27

申请号：US13628394

申请日：2012-09-27

Applicant: BROADCOM CORPORATION

Inventor： Bruce Kwan ,  Puneet Agarwal ,  Brad Matthews ,  Mohan Kalkunte ,  Martin Lund

IPC: H04L12/56

CPC classification number: H04L41/0681 ,  H04L43/0876 ,  H04L43/16

Abstract: The systems and methods disclosed herein allow for a switch (in a packet-switching network) to track buffer statistics, and trigger an event, such as a hardware interrupt or a system snapshot, in response to the buffer statistics reaching a threshold that may indicate an impending problem. Since the switch itself triggers the event to alert the network administrator, the network administrator no longer needs to sift through mountains of data to identify potential problems. Also, since the switch triggers the event prior to a problem arising, the network administrator can provide remedial action prior to a problem occurring. This type of event-triggering mechanism makes the administration of packet-switching networks more manageable.

Abstract translation: 本文公开的系统和方法允许交换机（在分组交换网络中）跟踪缓冲器统计，并且响应于缓冲器统计达到可以指示的阈值来触发诸如硬件中断或系统快照的事件 一个即将到来的问题。 由于交换机本身触发事件来提醒网络管理员，所以网络管理员不再需要筛选数据山，以识别潜在的问题。 此外，由于交换机在出现问题之前触发事件，网络管理员可以在发生问题之前提供补救措施。 这种类型的事件触发机制使得分组交换网络的管理更加易于管理。