公开(公告)号：US20110044349A1

公开(公告)日：2011-02-24

申请号：US12939849

申请日：2010-11-04

Applicant: Tom GALLATIN ,  Denny K. MIU ,  King L. WON ,  Patrick Pak Tak LEONG ,  Ted HO

Inventor： Tom GALLATIN ,  Denny K. MIU ,  King L. WON ,  Patrick Pak Tak LEONG ,  Ted HO

IPC: H04L12/56

CPC classification number: H04L49/351 ,  H04L12/4641 ,  H04L12/4645 ,  H04L41/0213 ,  H04L41/046 ,  H04L41/0896 ,  H04L43/028 ,  H04L43/0823 ,  H04L43/0882 ,  H04L43/12 ,  H04L43/16 ,  H04L43/18 ,  H04L49/201 ,  H04L49/354 ,  H04L49/555 ,  H04L63/0227 ,  H04L63/1408

Abstract: The present invention relates to a packet switch and a packet switching method. An example embodiment of the present invention comprises at least three network ports, at least one instrument port, a mux-switch, a packet switch fabric, and an address table. The embodiment updates the address table to include the source address of each ingress packet of each network port and associate the source address with that network port. The mux-switch routes the ingress packet traffic of each network port according to the identity of the network port so that at least a copy of the packet traffic of one of the network ports is routed to an instrument port. The packet switch fabric routes the packets from the instrument ports to the network ports according the destination address of the packet and the identity of the network port that is associated with the destination address as recorded in the address table.

Abstract translation: 分组交换机和分组交换方法技术领域本发明涉及分组交换机和分组交换方法。 本发明的示例性实施例包括至少三个网络端口，至少一个仪器端口，多路复用交换机，分组交换结构和地址表。 该实施例更新地址表以包括每个网络端口的每个入口分组的源地址，并将源地址与该网络端口相关联。 多路复用交换机根据网络端口的身份对每个网络端口的入口报文流量进行路由，使得一个网络端口的报文流量的至少一个副本路由到仪器端口。 分组交换结构根据报文的目的地址和与地址表中记录的目的地址相关联的网络端口的标识，将报文从仪器端口路由到网络端口。

公开(公告)号：US07870298B2

公开(公告)日：2011-01-11

申请号：US11580261

申请日：2006-10-12

Applicant: Koji Shima ,  Kazushige Machiyama

Inventor： Koji Shima ,  Kazushige Machiyama

IPC: G06F15/16 ,  G06F15/167 ,  G06F15/173 ,  G06F9/46 ,  G06F13/36 ,  G06F13/28 ,  H04L12/28

CPC classification number: H04L45/60 ,  H04L49/201 ,  H04L49/3009 ,  H04L49/351

Abstract: Two logical partitions within a single computer communicate with each other internally. The protocol stack of a first logical partition generates a frame in a memory space provided in a driver and referred to by the first logical partition. The driver transfers the frame generated in the memory space of the first logical partition to a communication port of a Layer 2 switch using DMA. The communication port of the Layer 2 switch loops back the frame input from the driver. An interrupt is signaled to the driver and the frame is transferred from communication port of the Layer 2 switch to the driver using DMA. The frame is received in a memory space referred to by a second logical partition.

Abstract translation: 单个计算机内的两个逻辑分区在内部进行通信。 第一逻辑分区的协议栈在驱动器中提供的并由第一逻辑分区引用的存储器空间中生成帧。 驱动器使用DMA将在第一逻辑分区的存储器空间中生成的帧传送到第2层交换机的通信端口。 第二层交换机的通信端口回送驱动程序的帧输入。 向驱动程序发出一个中断信号，并且使用DMA将帧从第2层交换机的通信端口传送到驱动器。 帧被接收在由第二逻辑分区引用的存储器空间中。

公开(公告)号：US20100254384A1

公开(公告)日：2010-10-07

申请号：US12783723

申请日：2010-05-20

Applicant: Naofumi Kobayashi

Inventor： Naofumi Kobayashi

IPC: H04L12/56

CPC classification number: H04L45/16 ,  H04L12/185 ,  H04L41/00 ,  H04L49/201 ,  H04L49/254 ,  H04L49/351

Abstract: A multicast processing section constructs, when it is determined that a received packet is a packet on a multicast packet and multicast group management protocol, a table showing a correlation between a host device and a multicast group in a port number-multicast physical address correlation storing section as well as in a multicast router-connected port storing section according to the received packet, and controls to transfer a packet for each multicast group between a multicast router and host devices according to the table.

Abstract translation: 多播处理部，当确定接收到的分组是组播分组和组播组管理协议上的分组时，构成表示端口号 - 组播物理地址相关存储中的主机设备与组播组之间的相关性的表 以及根据接收到的分组在组播路由器连接端口存储部中，根据该表，控制在组播路由器和主机设备之间传送每个组播组的分组。

公开(公告)号：US20100232431A1

公开(公告)日：2010-09-16

申请号：US12720986

申请日：2010-03-10

Applicant: William B. Sebastian

Inventor： William B. Sebastian

IPC: H04L12/56

CPC classification number: H04L65/4076 ,  H04L12/18 ,  H04L45/16 ,  H04L49/201 ,  H04L67/2804 ,  H04N7/17318 ,  H04N21/2402 ,  H04N21/252 ,  H04N21/4532 ,  H04N21/6125 ,  H04N21/6405 ,  H04N21/8405

Abstract: Methods, apparatuses, and systems are provided for improving utilization of a communications system through various atom-based techniques for enhancing the viewing experience for Internet protocol content. Some embodiments exploit atom-based processing to determine which content atoms to broadcast (e.g., multicast) over which channels to which subscribers. Other embodiments make atom-based filtering, caching, and/or other determinations at the user terminal. For example, low-level (e.g., physical layer) filtering may be used to limit the amount of user-layer processing needed, and to facilitate delivery of content to those users most likely to desire that content. Still other embodiments allow users to create customized channels of cached content for viewing as a shared channel. Embodiments include techniques for addressing synchronization of channel content and viewing, and social networking, for subscribers to the shared channel. The shared channels may be further used to facilitate social networking among subscribers.

Abstract translation: 提供了用于通过各种基于原子的技术来提高通信系统的利用率的方法，装置和系统，以增强因特网协议内容的观看体验。 一些实施例利用基于原子的处理来确定哪些内容原子在订户哪个信道上广播（例如，多播）。 其他实施例在用户终端处进行基于原子的过滤，缓存和/或其他确定。 例如，可以使用低级（例如，物理层）过滤来限制所需的用户层处理量，并且便于向最可能希望该内容的用户传送内容。 还有其他实施例允许用户创建用于作为共享信道观看的高速缓存内容的定制频道。 实施例包括用于解决频道内容的同步以及用于共享信道的用户的观看和社交网络的技术。 共享信道可以进一步用于促进订户之间的社交网络。

公开(公告)号：US20100215045A1

公开(公告)日：2010-08-26

申请号：US12757209

申请日：2010-04-09

Applicant: Norival R. Figueira ,  Paul A. Bottorff ,  Guyves Achtari ,  Huiwen Li

Inventor： Norival R. Figueira ,  Paul A. Bottorff ,  Guyves Achtari ,  Huiwen Li

IPC: H04L12/56

CPC classification number: H04L49/602 ,  H04L45/74 ,  H04L49/201 ,  H04L61/2015

Abstract: Frame contained destination information may be used by a switch to identify an appropriate output port for a given frame without performing a table access operation. This reduces the processing requirements of the switch to enable the switch to handle frames more efficiently. The frame contained destination information may be contained in the frame's local destination MAC addresses (DA) such that a portion of the DA directly indicates, for each switch that handles the frame, an output port for that switch. Different portions of the DA may be used by different switches, depending on where they are in the network hierarchy. Large switches may also use sub-fields within their allocated portion in the DA to identify internal switching components. A location resolution server may be provided to store and distribute IP and MAC addresses and respond to local ARP requests on the local domain.

Abstract translation: 可以由交换机使用帧包含的目的地信息来识别给定帧的适当输出端口，而不执行表访问操作。 这减少了开关的处理要求，使开关更有效地处理框架。 帧的目的地信息可以包含在帧的本地目的地MAC地址（DA）中，使得DA的一部分对于处理帧的每个交换机直接指示用于该交换机的输出端口。 取决于它们在网络层次中的位置，DA的不同部分可以被不同的交换机使用。 大型交换机也可以使用它们在DA中分配的部分内的子场来识别内部交换组件。 可以提供位置解析服务器来存储和分发IP和MAC地址并响应本地域上的本地ARP请求。

公开(公告)号：US07778254B2

公开(公告)日：2010-08-17

申请号：US11698860

申请日：2007-01-29

Applicant: Shiri Kadambi ,  Mohan Kalkunte ,  Shekhar Ambe

Inventor： Shiri Kadambi ,  Mohan Kalkunte ,  Shekhar Ambe

IPC: H04L12/56

CPC classification number: H04L47/20 ,  H04L47/10 ,  H04L47/125 ,  H04L47/30 ,  H04L49/201 ,  H04L49/351 ,  H04L49/552

Abstract: A method for managing congestion in a stack of network switches includes the steps of receiving an incoming packet on a first port of a network switch for transmission to a destination port and determining if the destination port of the packet is a monitored port. Thereafter, the method determines a queue status of the destination port, if the destination port is determined to be a monitored port, and preschedules transmission of the incoming packet to the destination port if the destination port is determined to be a monitored port.

Abstract translation: 一种用于管理网络交换机堆叠中的拥塞的方法包括以下步骤：在网络交换机的第一端口上接收输入分组，以传输到目的端口，并确定分组的目的端口是否为被监控端口。 此后，如果目的地端口被确定为被监视的端口，则该方法确定目的地端口的队列状态，并且如果目的地端口被确定为被监视的端口，则预先将传入的分组传输到目的地端口。

公开(公告)号：USRE41464E1

公开(公告)日：2010-07-27

申请号：US10000944

申请日：2001-12-04

Applicant: Avigdor Willenz ,  David Shemla ,  Yosi Sholt

Inventor： Avigdor Willenz ,  David Shemla ,  Yosi Sholt

IPC: G06F15/173 ,  H04L12/28

CPC classification number: H04L49/25 ,  H04L49/201 ,  H04L49/254 ,  H04L49/351

Abstract: A switched Ethernet controller (SEC) device and associated method that provides processor based intervention in the packet routing decision process is provided. The method of routing a multicast packet between a source port on a source device and a plurality of destination ports on a plurality of destination devices, utilizes a processor. The method includes the steps of the source device receiving the multicast packet via the source port, the source device sending the multicast packet to the processor, the processor examining the multicast packet, the processor determining the plurality of destination devices and corresponding the plurality of destination ports based on the results obtained during the step of examining, the processor transferring the multicast packet to the plurality of destination devices, and the plurality of destination devices sending the multicast packet to the plurality of destination ports.

Abstract translation: 提供了一种在分组路由决策过程中提供基于处理器的干预的交换以太网控制器（SEC）设备和相关联的方法。 在源设备上的源端口与多个目的地设备上的多个目的地端口之间路由组播分组的方法利用处理器。 该方法包括以下步骤：源设备经由源端口接收组播报文，源设备向处理器发送组播报文，处理器检查组播报文，处理器确定多个目标设备，并对应多个目的地 基于在检查步骤中获得的结果，处理器将多播分组传送到多个目的地设备，以及将多播分组发送到多个目的地端口的多个目的地设备。

公开(公告)号：US07733905B2

公开(公告)日：2010-06-08

申请号：US11670253

申请日：2007-02-01

Applicant: Abbas Rashid ,  Nazar Zaidi ,  Mark Bryers ,  Fred Gruner

Inventor： Abbas Rashid ,  Nazar Zaidi ,  Mark Bryers ,  Fred Gruner

IPC: H04J3/16

CPC classification number: H04L49/102 ,  H04L12/42 ,  H04L41/0896 ,  H04L49/101 ,  H04L49/201 ,  H04L49/205 ,  H04L49/25 ,  H04L49/3018

Abstract: A cross-bar switch includes a set of input ports for receiving data packets and a set of sink ports for transmitting the received packets to identified targets. A set of data rings couples the input ports to the sink ports. Each sink port utilizes the set of data rings to simultaneously accept multiple data packets targeted to the same destination—creating a non-blocking cross-bar switch. Sink ports are also each capable of supporting multiple targets—providing the cross-bar switch with implicit multicast capability.

Abstract translation: 交叉开关包括用于接收数据分组的一组输入端口和用于将接收到的分组发送到识别的目标的一组接收端口。 一组数据环将输入端口耦合到接收端口。 每个宿端口利用该组数据环同时接受针对同一目的地的多个数据包 - 创建非阻塞交叉条交换机。 Sink端口还能够支持多个目标 - 为具有隐式组播功能的交叉条交换机提供支持。

公开(公告)号：US20100128619A1

公开(公告)日：2010-05-27

申请号：US12595834

申请日：2008-10-30

Applicant: Hiroyuki Shigei

Inventor： Hiroyuki Shigei

IPC: H04L12/26

CPC classification number: H04L47/10 ,  H04L12/1877 ,  H04L12/1886 ,  H04L47/11 ,  H04L49/201

Abstract: A relay device, a relay method, and a program that can suppress occurrence of congestion of packets, for example applied to a Layer 2 switch. In a case a reception control unit receives multicast packets through ports, the reception control unit stores the received multicast packets in a buffer. A reception-band measurement unit measures the reception band of a stream of multicast packets passing through a channel from the reception control unit to the buffer in unit time and sends a notification of a measured value to a transmission control unit every unit time. The transmission control unit performs control so as not to transmit the multicast packets stored in the buffer from a port or ports whose transmission band is lower than a transmission threshold value corresponding to the reception band.

Abstract translation: 中继装置，中继方法以及可以抑制分组拥塞发生的程序，例如应用于二层交换机。 在接收控制单元通过端口接收多播分组的情况下，接收控制单元将所接收的多播分组存储在缓冲器中。 接收频带测量单元以单位时间测量通过从接收控制单元到缓冲器的信道的多播分组流的接收频带，并且每单位时间向发送控制单元发送测量值的通知。 传输控制单元执行控制，以便不从传输频带低于对应于接收频带的传输阈值的端口或者端口传送存储在缓冲器中的多播分组。

公开(公告)号：US07715419B2

公开(公告)日：2010-05-11

申请号：US11368776

申请日：2006-03-06

Applicant: Mohammed I. Tatar ,  Garry P. Epps ,  Oded Trainin ,  Eyal Oren ,  Cedrik Begin

Inventor： Mohammed I. Tatar ,  Garry P. Epps ,  Oded Trainin ,  Eyal Oren ,  Cedrik Begin

IPC: H04L12/56 ,  H04J1/16

CPC classification number: H04L49/1546 ,  H04L49/201 ,  H04L49/3045 ,  H04L49/3063 ,  H04L49/3072 ,  H04L49/503 ,  H04L49/506

Abstract: An architecture for a line card in a network routing device is provided. The line card architecture provides a bi-directional interface between the routing device and a network, both receiving packets from the network and transmitting the packets to the network through one or more connecting ports of a network interface. A high priority buffer and a low priority buffer can be assigned to each port of the network interface. The network interface can perform packet prioritization through buffer selection based on priority. High priority packets will be transmitted to an ingress packet processor before low priority packets for a given port.

Abstract translation: 提供了一种网络路由设备中线路卡的架构。 线路卡架构在路由设备和网络之间提供双向接口，两者接收来自网络的分组，并通过网络接口的一个或多个连接端口将分组发送到网络。 可以将高优先级缓冲区和低优先级缓冲区分配给网络接口的每个端口。 网络接口可以通过基于优先级的缓冲区选择来执行分组优先级。 高优先级数据包将在给定端口的低​​优先级数据包之前传输到入口数据包处理器。