公开(公告)号：US09628369B2

公开(公告)日：2017-04-18

申请号：US14702286

申请日：2015-05-01

Applicant: International Business Machines Corporation

Inventor： Fuhui Li ,  Jing Lu ,  Jiuxing Nie ,  Jun Yao

IPC: H04L12/721 ,  H04L29/08 ,  H04L12/751

CPC classification number: H04L45/02 ,  H04L12/4633 ,  H04L45/124 ,  H04L45/245 ,  H04L45/50 ,  H04L45/66 ,  H04L69/324

Abstract: The present invention discloses a method for processing non-unicast routes information in a TRILL network and a corresponding RBridge, wherein the RBridge has a neighbor relation with a plurality of other RBridges in the TRILL network, and the RBridge is the RBridge which computes non-unicast routes information in the neighbor relation, and in the method, the RBridge executes steps of: sending an acknowledgement message to the plurality of other RBridges, wherein the acknowledgement message acknowledges that the RBridge is the RBridge which computes the non-unicast routes information; obtaining a network topology related to the non-unicast routes information in the TRILL network; computing the non-unicast routes information based on the network topology; and distributing the computed non-unicast routes information to the plurality of other RBridges. The method and the corresponding RBridge are capable of reducing consumption of CPU resource of RBridges in the TRILL network.

公开(公告)号：US20160285641A1

公开(公告)日：2016-09-29

申请号：US14667861

申请日：2015-03-25

Applicant: International Business Machines Corporation

Inventor： JING HE ,  Jing Lu ,  Jun Yao

IPC: H04L12/18 ,  H04L12/713 ,  H04L12/46 ,  H04L12/761

CPC classification number: H04L12/185 ,  H04L12/184 ,  H04L12/4641 ,  H04L41/12 ,  H04L45/16 ,  H04L45/586 ,  H04L45/64 ,  H04L45/70

Abstract: For logical multicasting in overlay networks, at a data processing system, an original unicast packet is received from a first component in a first computing node in an overlay network. To cause multicasting in the overlay network the received original unicast packet was unicast by the first computing node only to the data processing system, and a multicast data structure for the overlay network is maintained only by the data processing system, the multicast data structure containing information of each receiver that is configured to receive unicast packets during logical multicasting in the overlay network. From a set of subscriber receivers in the multicast data structure, a subset of the subscriber receivers is selected. A copy of the original unicast packet is unicast to each subscriber receiver in the subset.

Abstract translation: 对于覆盖网络中的逻辑多播，在数据处理系统中，从覆盖网络中的第一计算节点中的第一组件接收原始单播分组。 为了在覆盖网络中进行组播，接收到的原始单播分组由第一计算节点单播到数据处理系统，并且覆盖网络的组播数据结构仅由数据处理系统维护，组播数据结构包含信息 被配置为在覆盖网络中的逻辑多播期间接收单播分组的每个接收机。 从多播数据结构中的一组用户接收机中选择用户接收机的子集。 原始单播包的副本是单播到该子集中的每个订户接收者。

公开(公告)号：US10355873B2

公开(公告)日：2019-07-16

申请号：US15402102

申请日：2017-01-09

Applicant: International Business Machines Corporation

Inventor： Chidambaram Bhagavathiperumal ,  Angu Selvam Chandra Sekaran ,  Suryanarayan Ramamurthy ,  Jun Yao ,  Yuan Yuan Zhang

IPC: H04L12/18 ,  H04L12/703 ,  H04L12/751 ,  H04L12/761 ,  H04L12/24 ,  H04L12/26 ,  H04L12/753 ,  H04L12/931

Abstract: In one embodiment, an apparatus includes a processing circuit and logic integrated with and/or executable by the processing circuit. The logic is configured to cause the processing circuit to handle Internet Group Membership Protocol (IGMP) messages received from other devices in a network. Also, the logic is configured to cause the processing circuit to create a general query solicit (GQS) message configured to solicit a general query (GQ) from a multicast snooping querier coupled with the apparatus. In another embodiment, a method includes handling, using a switch in a network, IGMP messages received from other devices in the network, and creating, using the switch, a GQS message configured to solicit a GQ from a multicast snooping querier coupled with the switch. Other systems, methods, and computer program products are described in more embodiments.

公开(公告)号：US09942126B2

公开(公告)日：2018-04-10

申请号：US15437928

申请日：2017-02-21

Applicant: International Business Machines Corporation

Inventor： Fuhui Li ,  Jing Lu ,  Jiuxing Nie ,  Jun Yao

IPC: H04L12/751 ,  H04L12/709 ,  H04L12/46 ,  H04L12/723 ,  H04L12/721

CPC classification number: H04L45/02 ,  H04L12/4633 ,  H04L45/124 ,  H04L45/245 ,  H04L45/50 ,  H04L45/66 ,  H04L69/324

Abstract: The present invention discloses a method for processing non-unicast routes information in a TRILL network and a corresponding RBridge, wherein the RBridge has a neighbor relation with a plurality of other RBridges in the TRILL network, and the RBridge is the RBridge which computes non-unicast routes information in the neighbor relation, and in the method, the RBridge executes steps of: sending an acknowledgement message to the plurality of other RBridges, wherein the acknowledgement message acknowledges that the RBridge is the RBridge which computes the non-unicast routes information; obtaining a network topology related to the non-unicast routes information in the TRILL network; computing the non-unicast routes information based on the network topology; and distributing the computed non-unicast routes information to the plurality of other RBridges. The method and the corresponding RBridge are capable of reducing consumption of CPU resource of RBridges in the TRILL network.

公开(公告)号：US20180006834A1

公开(公告)日：2018-01-04

申请号：US15702922

申请日：2017-09-13

Applicant: International Business Machines Corporation

Inventor： Jing He ,  Jing Lu ,  Jun Yao

IPC: H04L12/18 ,  H04L12/46 ,  H04L12/761 ,  H04L12/713 ,  H04L12/715 ,  H04L12/721

CPC classification number: H04L12/185 ,  H04L12/184 ,  H04L12/4641 ,  H04L41/12 ,  H04L45/16 ,  H04L45/586 ,  H04L45/64 ,  H04L45/70

Abstract: For logical multicasting in overlay networks, at a data processing system, an original unicast packet is received from a first component in a first computing node in an overlay network. To cause multicasting in the overlay network the received original unicast packet was unicast by the first computing node only to the data processing system, and a multicast data structure for the overlay network is maintained only by the data processing system, the multicast data structure containing information of each receiver that is configured to receive unicast packets during logical multicasting in the overlay network. From a set of subscriber receivers in the multicast data structure, a subset of the subscriber receivers is selected. A copy of the original unicast packet is unicast to each subscriber receiver in the subset.

公开(公告)号：US20170163520A1

公开(公告)日：2017-06-08

申请号：US15437928

申请日：2017-02-21

Applicant: International Business Machines Corporation

Inventor： Fuhui Li ,  Jing Lu ,  Jiuxing Nie ,  Jun Yao

IPC: H04L12/751 ,  H04L12/46 ,  H04L12/709

CPC classification number: H04L45/02 ,  H04L12/4633 ,  H04L45/124 ,  H04L45/245 ,  H04L45/50 ,  H04L45/66 ,  H04L69/324

Abstract: The present invention discloses a method for processing non-unicast routes information in a TRILL network and a corresponding RBridge, wherein the RBridge has a neighbor relation with a plurality of other RBridges in the TRILL network, and the RBridge is the RBridge which computes non-unicast routes information in the neighbor relation, and in the method, the RBridge executes steps of: sending an acknowledgement message to the plurality of other RBridges, wherein the acknowledgement message acknowledges that the RBridge is the RBridge which computes the non-unicast routes information; obtaining a network topology related to the non-unicast routes information in the TRILL network; computing the non-unicast routes information based on the network topology; and distributing the computed non-unicast routes information to the plurality of other RBridges. The method and the corresponding RBridge are capable of reducing consumption of CPU resource of RBridges in the TRILL network.

公开(公告)号：US20160212040A1

公开(公告)日：2016-07-21

申请号：US14598159

申请日：2015-01-15

Applicant: International Business Machines Corporation

Inventor： Chidambaram Bhagavathiperumal ,  Angu Selvam Chandra Sekaran ,  Suryanarayan Ramamurthy ,  Jun Yao ,  Yuan Yuan Zhang

IPC: H04L12/703 ,  H04L12/18 ,  H04L12/931 ,  H04L12/751 ,  H04L12/721

CPC classification number: H04L12/1868 ,  H04L12/185 ,  H04L12/1863 ,  H04L41/0672 ,  H04L41/0816 ,  H04L43/0811 ,  H04L45/02 ,  H04L45/16 ,  H04L45/28 ,  H04L45/48 ,  H04L49/65

Abstract: In one embodiment, a system includes a multicast snooping querier configured to send and receive Internet Group Membership Protocol (IGMP) messages, and one or more IGMP switches interconnected to form a network, wherein at least one of the one or more IGMP switches is connected to the multicast snooping querier, wherein the one or more IGMP switches are configured to: handle IGMP messages, and create a general query solicit (GQS) message configured to solicit a general query from the multicast snooping querier, and wherein the multicast snooping querier is configured to send out a general query (GQ) message on all ports in response to receiving the GQS message to solicit port information and group membership information from each of the one or more IGMP switches. In other embodiments, systems, methods and computer program products are described to enable fast recovery of multicast router ports, upon a STP topology change.

Abstract translation: 在一个实施例中，系统包括被配置为发送和接收因特网组成员协议（IGMP）消息的多播窥探查询器和互连以形成网络的一个或多个IGMP交换机，其中所述一个或多个IGMP交换机中的至少一个被连接 所述组播侦听查询器，其中所述一个或多个IGMP交换机被配置为：处理IGMP消息，并且创建被配置为从所述组播侦听查询器请求一般查询的一般查询请求（GQS）消息，并且其中所述多播侦听查询器是 配置为在所有端口上发送通用查询（GQ）消息以响应于接收到所述GQS消息以从所述一个或多个IGMP交换机中的每一个请求端口信息和组成员关系信息。 在其他实施例中，描述了在STP拓扑变化时，系统，方法和计算机程序产品能够快速恢复组播路由器端口。

公开(公告)号：US20160036690A1

公开(公告)日：2016-02-04

申请号：US14702286

申请日：2015-05-01

Applicant: International Business Machines Corporation

Inventor： Fuhui Li ,  Jing Lu ,  Jiuxing Nie ,  Jun Yao

IPC: H04L12/721 ,  H04L12/751 ,  H04L29/08

CPC classification number: H04L45/02 ,  H04L12/4633 ,  H04L45/124 ,  H04L45/245 ,  H04L45/50 ,  H04L45/66 ,  H04L69/324

Abstract: The present invention discloses a method for processing non-unicast routes information in a TRILL network and a corresponding RBridge, wherein the RBridge has a neighbor relation with a plurality of other RBridges in the TRILL network, and the RBridge is the RBridge which computes non-unicast routes information in the neighbor relation, and in the method, the RBridge executes steps of: sending an acknowledgement message to the plurality of other RBridges, wherein the acknowledgement message acknowledges that the RBridge is the RBridge which computes the non-unicast routes information; obtaining a network topology related to the non-unicast routes information in the TRILL network; computing the non-unicast routes information based on the network topology; and distributing the computed non-unicast routes information to the plurality of other RBridges. The method and the corresponding RBridge are capable of reducing consumption of CPU resource of RBridges in the TRILL network.

Abstract translation: 本发明公开了一种在TRILL网络和对应RBridge中处理非单播路由信息的方法，其中，所述R​​Bridge与所述TRILL网络中的多个其他RBridge具有邻居关系，并且所述RBridge是RBridge， 在所述方法中，所述R​​Bridge执行以下步骤：向所述多个其他RBCCH发送确认消息，其中所述确认消息确认所述RBridge是计算所述非单播路由信息的所述RBridge; 获取与TRILL网络中的非单播路由信息相关的网络拓扑; 基于网络拓扑计算非单播路由信息; 以及将所计算的非单播路由信息分发到所述多个其他RBridge。 该方法和相应的RBridge能够减少TRILL网络中RBridge的CPU资源消耗。