公开(公告)号：US20140078902A1

公开(公告)日：2014-03-20

申请号：US13767172

申请日：2013-02-14

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Thomas J. Edsall ,  Putu Harry Subagio ,  Alessandro Fulli ,  Christopher A. Wildman ,  Mingzhe Li ,  Wei-Jen Huang ,  Chih-Tsung Huang

IPC: H04L12/70

CPC classification number: H04L49/25 ,  H04L29/0653 ,  H04L43/04 ,  H04L45/74 ,  H04L45/745 ,  H04L47/12 ,  H04L47/70 ,  H04L49/251 ,  H04L49/253 ,  H04L49/3009 ,  H04L49/3063 ,  H04L49/355 ,  H04L49/9057 ,  H04L69/22

Abstract: A network device receives a packet that includes a plurality of sets of fields. Sets of fields of the packet are parsed and the field sets are evaluated as soon as they are available to determine whether a processing decision can be made on the packet. Additional field sets may be parsed from the packet and obtained in parallel with determining whether a processing decision can be made, but once it is determined that a processing decision can be made, the evaluating of field sets is terminated such that any further field sets of the packet are ignored for purposes of making a processing decision for the packet.

Abstract translation: 网络设备接收包括多组字段的分组。 对数据包的字段进行解析，并且一旦可用，即可对字段集进行评估，以确定是否可以对数据包进行处理决定。 可以从分组中分析附加的字段集，并且与确定是否可以进行处理决定并行获得，但是一旦确定可以进行处理决定，则终止场集合的评估，使得任何另外的字段集合 为了对分组进行处理决定，该分组被忽略。

公开(公告)号：US08599703B2

公开(公告)日：2013-12-03

申请号：US12608698

申请日：2009-10-29

Applicant: Abinder S. Dhillon ,  Shan Zhu ,  Chandra Ganesh ,  Snigdho Chandra Bardalai

Inventor： Abinder S. Dhillon ,  Shan Zhu ,  Chandra Ganesh ,  Snigdho Chandra Bardalai

IPC: G01R31/08

CPC classification number: H04L47/724 ,  H04L47/10 ,  H04L49/253

Abstract: Determining availability of an end-to-end physical path associated with reserved resources of a tunnel may include determining, for one or more nodes, a resource status for one or more resources integral to each node. Resource status for the integral resources of each node may be recorded in a message. Each node may communicate its associated message to one or more other nodes. At least one particular node of the one or more nodes may receive the messages communicated from the one or more nodes. The at least one particular node may store resource statuses for each of the one or more nodes. Based on an analysis of resource statuses, the at least one particular node may determine an availability of an end-to-end path of reserved resources of a tunnel including one or more of the nodes based on an analysis of resource statuses.

Abstract translation: 确定与隧道的保留资源相关联的端到端物理路径的可用性可以包括为一个或多个节点确定一个或多个资源对于每个节点集成的资源状态。 每个节点的整体资源的资源状态可以记录在消息中。 每个节点可以将其相关联的消息传送到一个或多个其他节点。 一个或多个节点的至少一个特定节点可以接收从一个或多个节点传送的消息。 所述至少一个特定节点可以存储针对所述一个或多个节点中的每一个的资源状态。 基于对资源状态的分析，至少一个特定节点可以基于资源状态的分析来确定包括节点中的一个或多个的隧道的保留资源的端到端路径的可用性。

公开(公告)号：US20130301646A1

公开(公告)日：2013-11-14

申请号：US13889123

申请日：2013-05-07

Applicant: Oracle International Corporation

Inventor： Bartosz Bogdanski ,  Bjørn Dag Johnsen

IPC: H04L12/721

CPC classification number: H04L49/253 ,  G06F9/451 ,  H04L29/12 ,  H04L45/24 ,  H04L45/44 ,  H04L49/35 ,  H04L49/358

Abstract: A system and method can rout traffic between distinct subnets in a network environment. A router that connects the distinct subnets, such as InfiniBand (IB) subnets, can receive a list of destinations that the router is responsible for routing one or more packets to. Furthermore, the router can obtain information, from one or more switches in the at least one subnet, on which downward output ports of the router can be used for routing the one or more packets, and build a routing table based on the obtained information.

Abstract translation: 系统和方法可以在网络环境中的不同子网之间进行路由。 连接不同子网（如InfiniBand（IB））子网的路由器可以接收路由器负责路由一个或多个数据包的目的地列表。 此外，路由器可以从至少一个子网中的一个或多个交换机获得在路由器的向下输出端口可以用于路由一个或多个分组的信息，并且基于获得的信息构建路由表。

公开(公告)号：US20130242731A1

公开(公告)日：2013-09-19

申请号：US13872450

申请日：2013-04-29

Applicant: GOOGLE INC.

Inventor： Peter Michael Klausler

IPC: H04L12/70

CPC classification number: H04L47/12 ,  G06F15/17312 ,  G06F15/17381 ,  H04L45/06 ,  H04L45/18 ,  H04L45/60 ,  H04L49/253

Abstract: Aspects of the invention pertain to routing packets in a computer system while avoiding deadlock. A turn rule is set according to unique identifiers associated with switches in the system. Numeric values of switches in possible turns are compared to determine whether a turn is permissible. The rule applies to all nodes in the system. The rule may be violated when using virtual channels. Here, a violation is permissible when using monotonically increasing virtual channel numbers or monotonically decreasing virtual channel numbers. Alternatively, the violations of the turn rule may be allowed if they force a packet to change to a later virtual channel in some fixed ordering of virtual channels. Deadlock can thus be avoided in many different types of architectures, including mesh, torus, butterfly and flattened butterfly configurations.

Abstract translation: 本发明的方面涉及在计算机系统中路由分组，同时避免死锁。 根据与系统中的开关相关联的唯一标识符设置转弯规则。 比较可能转弯中开关的数值，以确定转弯是否允许。 该规则适用于系统中的所有节点。 使用虚拟通道时可能会违反规则。 这里，当使用单调递增的虚拟通道号或单调递减虚拟通道号时，允许违规。 或者，如果在某些固定的虚拟通道排序中强制分组改变为稍后的虚拟通道，则可能允许违反转弯规则。 因此，可以在许多不同类型的架构中避免死锁，包括网格，环面，蝴蝶和扁平蝶形配置。

公开(公告)号：US20130176906A1

公开(公告)日：2013-07-11

申请号：US13683668

申请日：2012-11-21

Applicant: ROCKSTAR BIDCO, LP

Inventor： ROBERT FRISKNEY ,  NIGEL BRAGG ,  SIMON PARRY ,  PETER ASHWOOD-SMITH ,  DAVID ALLAN

IPC: H04L12/46

CPC classification number: H04L45/74 ,  H04L12/4641 ,  H04L12/4645 ,  H04L45/54 ,  H04L45/64 ,  H04L45/66 ,  H04L47/122 ,  H04L49/205 ,  H04L49/253 ,  H04L49/254 ,  H04L49/351 ,  H04L49/354

Abstract: The invention relates to enabling traffic engineering in frame-based networks such as Ethernet networks. There is described a method of and connection controller for establishing connections (76, 77) in a frame-based communications network comprising nodes (71-75 and 78) such as Ethernet switches. The connections are established by configuring, in various of the nodes, mappings for forwarding data frames, such as Ethernet frames. The mappings are from a combination of a) a destination address corresponding to a destination node (73) of the connection and b) an identifier, such as a VLAN tag. The mappings are to selected output ports of the various nodes. By using the combination of destination address AND identifier, the mappings enable data frames belonging to different connections (76, 77) to be forwarded differentially (ie forwarded on different output ports) at a node (75) despite the different connections having the same destination node. This enables flexibility in routing connections—ie the ability to perform traffic engineering.

Abstract translation: 本发明涉及在诸如以太网的基于帧的网络中启用流量工程。 描述了在包括诸如以太网交换机的节点（71-75和78）的基于帧的通信网络中建立连接（76,77）的方法和连接控制器。 通过在各种节点中配置用于转发数据帧（例如以太网帧）的映射来建立连接。 所述映射来自a）与所述连接的目的地节点（73）对应的目的地地址的组合，以及b）诸如VLAN标签的标识符。 映射到各个节点的选定输出端口。 通过使用目的地地址和标识符的组合，映射使得属于不同连接（76,77）的数据帧在节点（75）处被差分地转发（即，在不同输出端口上转发），尽管具有相同目的地的不同连接 节点。 这使路由连接具有灵活性，即执行流量工程的能力。

公开(公告)号：US20130089104A1

公开(公告)日：2013-04-11

申请号：US13705386

申请日：2012-12-05

Applicant: CALXEDA, INC.

Inventor： Mark Bradley Davis ,  David James Borland

IPC: H04L12/56

CPC classification number: H04L45/74 ,  G06F1/3234 ,  G06F3/0605 ,  G06F3/0631 ,  G06F3/067 ,  G06F9/5016 ,  G06F12/0284 ,  G06F13/00 ,  G06F13/24 ,  G06F13/40 ,  H04L45/00 ,  H04L45/60 ,  H04L45/7457 ,  H04L47/10 ,  H04L49/109 ,  H04L49/15 ,  H04L49/201 ,  H04L49/25 ,  H04L49/253 ,  H04L49/3009 ,  H04L49/351 ,  H04L49/356 ,  Y02B70/16 ,  Y02B70/30 ,  Y02B70/32 ,  Y02D10/14 ,  Y02D10/151 ,  Y02D30/32

Abstract: A system and method are provided that support a routing using a tree-like or graph topology that supports multiple links per node, where each link is designated as an Up, Down, or Lateral link, or both, within the topology. The system may use a segmented MAC architecture which may have a method of re-purposing MAC IP addresses for inside MACs and outside MACs, and leveraging what would normally be the physical signaling for the MAC to feed into the switch.

公开(公告)号：US20130051397A1

公开(公告)日：2013-02-28

申请号：US13219339

申请日：2011-08-26

Applicant: LIPING GUO ,  DODDABALLAPUR N. JAYASIMHA ,  JEREMY CHAN

Inventor： LIPING GUO ,  DODDABALLAPUR N. JAYASIMHA ,  JEREMY CHAN

IPC: H04L12/28

CPC classification number: H04L49/253 ,  H04L45/00 ,  H04L45/586

Abstract: A method includes receiving flits forwarded from an upstream router into a first input virtual channel (VC) associated with an input port. The flits are associated with packets originated from a first Intellectual Property (IP) core and forwarded to a second IP core. The flits are stored in a VC storage associated with the first input VC. The method further includes performing link width conversion based on a width of the flits being different from a width of an output port. Link width conversion includes accumulation of the flits when the width of the output port is wider and unpacking of the flits when the width of the output port is narrower. Credits are generated based on the flits being forwarded from the first input VC to the output port. The credits are sent to the upstream router to enable receiving more flits from the upstream router.

Abstract translation: 一种方法包括接收从上游路由器转发到与输入端口相关联的第一输入虚拟通道（VC）中的闪烁。 闪存与源自第一知识产权（IP）核心的数据包相关联，并转发到第二个IP内核。 闪存存储在与第一输入VC相关联的VC存储器中。 该方法还包括基于与输出端口的宽度不同的flits的宽度来执行链路宽度转换。 链路宽度转换包括当输出端口的宽度较宽时，当输出端口的宽度较窄时，flit的累积，以及flits的解包。 基于从第一输入VC转发到输出端口的闪烁生成积分。 信用被发送到上游路由器，以便能够从上游路由器接收更多的信元。

公开(公告)号：US20130022040A1

公开(公告)日：2013-01-24

申请号：US13624731

申请日：2012-09-21

Applicant: Mark Davis ,  David James Borland

Inventor： Mark Davis ,  David James Borland

IPC: H04L12/64

CPC classification number: H04L45/74 ,  G06F1/3234 ,  G06F3/0605 ,  G06F3/0631 ,  G06F3/067 ,  G06F9/5016 ,  G06F12/0284 ,  G06F13/00 ,  G06F13/24 ,  G06F13/40 ,  H04L45/00 ,  H04L45/60 ,  H04L45/7457 ,  H04L47/10 ,  H04L49/109 ,  H04L49/15 ,  H04L49/201 ,  H04L49/25 ,  H04L49/253 ,  H04L49/3009 ,  H04L49/351 ,  H04L49/356 ,  Y02B70/16 ,  Y02B70/30 ,  Y02B70/32 ,  Y02D10/14 ,  Y02D10/151 ,  Y02D30/32

Abstract: A system and method are provided that support a routing using a tree-like or graph topology that supports multiple links per node, where each link is designated as an Up, Down, or Lateral link, or both, within the topology. The system may use a segmented MAC architecture which may have a method of re-purposing MAC IP addresses for inside MACs and outside MACs, and leveraging what would normally be the physical signaling for the MAC to feed into the switch.

Abstract translation: 提供了一种系统和方法，其支持使用支持多个链路的树状或图形拓扑的路由，每个节点在拓扑中指定每条链路为Up，Down或Lateral链路，或两者。 该系统可以使用分段MAC架构，其可以具有为内部MAC和外部MAC重新使用MAC IP地址的方法，并且利用通常将MAC的物理信令馈送到交换机中。

公开(公告)号：US20120307822A1

公开(公告)日：2012-12-06

申请号：US13531873

申请日：2012-06-25

Applicant: Daniel G. EISENHAUER ,  Roger G. HATHORN ,  Henry J. MAY ,  Louis W. RICCI

Inventor： Daniel G. EISENHAUER ,  Roger G. HATHORN ,  Henry J. MAY ,  Louis W. RICCI

IPC: H04L12/50

CPC classification number: H04L49/357 ,  H04L49/253 ,  H04L67/1097

Abstract: For a fibre channel forwarder fabric login sequence in a fibre channel switch environment, where a Fibre Channel Forwarder (cFCF) is separated from a Fibre Channel over Ethernet (FCoE) data forwarder (FDF), at a Fibre Channel Login (FLOGI) to a target device from an initiator device, a node address acceptance notification is held from reaching the initiator device until each of the zoning distributions have been considered to have been completed.

Abstract translation: 对于在光纤通道交换机环境中的光纤通道转发器结构登录序列，其中光纤通道转发器（c FCF）与光纤通道以太网（FCoE）数据转发器（FDF）分离，在光纤通道登录（FLOGI）到 来自发起者设备的目标设备，保持节点地址接受通知到达启动器设备，直到每个分区分布被认为已经完成。

公开(公告)号：US20120060010A1

公开(公告)日：2012-03-08

申请号：US13291408

申请日：2011-11-08

Applicant: Norio Shimozono ,  Shintaro Ito

Inventor： Norio Shimozono ,  Shintaro Ito

IPC: G06F12/02

CPC classification number: G06F17/30067 ,  G06F17/3007 ,  G06F17/30079 ,  H04L49/253 ,  H04L49/30 ,  H04L49/50 ,  H04L49/501 ,  H04L49/70 ,  H04Q1/56

Abstract: A switch unit, which is connected to one or more computers and one or more storage systems, comprises an update function for updating transfer management information (a routing table, for example). The storage system has a function for adding a virtual port to a physical port. The storage system migrates the virtual port addition destination from a first physical port to a second physical port and transmits a request of a predetermined type which includes identification information on the virtual port of the migration target to the switch unit. The transfer management information is updated by the update function of the switch unit so that the transfer destination which corresponds with the migration target virtual port is the switch port connected to the second physical port.

Abstract translation: 连接到一个或多个计算机和一个或多个存储系统的开关单元包括用于更新传送管理信息（例如路由表）的更新功能。 存储系统具有将虚拟端口添加到物理端口的功能。 存储系统将虚拟端口添加目的地从第一物理端口迁移到第二物理端口，并将包括迁移目标的虚拟端口上的标识信息的预定类型的请求发送到交换单元。 通过切换单元的更新功能来更新传送管理信息，使得与移动对象虚拟端口对应的传送目的地是连接到第二物理端口的交换端口。