公开(公告)号：US09698995B2

公开(公告)日：2017-07-04

申请号：US15136747

申请日：2016-04-22

Applicant: Dell Products L.P.

Inventor： Anoop Ghanwani ,  Krishnamurthy Subramanian ,  Mohnish Anumala ,  Shivakumar Sundaram ,  Pathangi Janardhanan

IPC: H04L12/28 ,  H04L12/18 ,  G06F9/455 ,  H04L12/755 ,  H04L29/12 ,  H04L12/931 ,  G06F9/50

CPC classification number: H04L12/18 ,  G06F9/45558 ,  G06F9/5072 ,  G06F2009/45595 ,  H04L12/185 ,  H04L45/021 ,  H04L49/201 ,  H04L49/70 ,  H04L61/103

Abstract: An information handling system is provided. The information handling system includes a first hypervisor running on a first host and a second hypervisor running on a second host. The first hypervisor managing a first virtual switch, and the second hypervisor managing a second virtual switch. The information handling system also includes a plurality of virtual machines (VMs), including a first VM, which is part of a first tenant, running on the first host, and a second VM, part of a second tenant, running on the second host. The first virtual switch has a mapping in memory that maps a customer-specific multicast IP address, used by the plurality of VMs to indicate a multicast group that includes VMs on the first and second tenants, to a global multicast IP address used by the first and second hosts.

公开(公告)号：US20170149610A1

公开(公告)日：2017-05-25

申请号：US15424717

申请日：2017-02-03

Applicant: Telefonaktiebolaget L M Ericsson (publ)

Inventor： Kiran Yedavalli ,  Ramesh Mishra

IPC: H04L12/24 ,  H04L12/931 ,  H04L29/12 ,  H04L12/721

CPC classification number: H04L41/0826 ,  H04L12/1877 ,  H04L12/1886 ,  H04L12/4641 ,  H04L41/0803 ,  H04L41/12 ,  H04L45/32 ,  H04L45/38 ,  H04L49/15 ,  H04L49/201 ,  H04L49/25 ,  H04L49/354 ,  H04L61/103

Abstract: A method and system is implemented in a network node that functions as a controller for a domain in a split architecture network. The domain comprises a plurality of flow switches, where the plurality of flow switches implement a data plane for the split architecture network and the controller implements a control plane for the split architecture network that is remote from the data plane. The method and system configure the plurality of flow switches to efficiently handle each type of broadcast packet in the domain of the split architecture network without flooding the domain with the broadcast packets to thereby reduce a number of broadcast packets forwarded within the domain.

公开(公告)号：US09648521B2

公开(公告)日：2017-05-09

申请号：US15266145

申请日：2016-09-15

Applicant: FUJITSU LIMITED

Inventor： Na Guan ,  Lin Tian ,  Yi Huang ,  Weiwei Wang ,  Hua Zhou

IPC: H04W24/00 ,  H04W36/00 ,  H04W4/06 ,  H04W24/10 ,  H04L12/931

CPC classification number: H04W36/0016 ,  H04L49/201 ,  H04W4/06 ,  H04W24/10 ,  H04W36/0005 ,  H04W36/0022

Abstract: An information acquiring method and a base station. The method comprises: receiving by a target base station reception status information of a multimedia broadcast multicast service of user equipment reported by a source base station when the user equipment is handed over between cells; wherein the reception status information comprises information indicating that the user equipment is receiving a multimedia broadcast multicast service, or information indicating that the user equipment finishes receiving a multimedia broadcast multicast service. With the embodiments of the present invention, the source base station of the user equipment notifies the target base station of reception status information of multimedia broadcast multicast service of the user equipment when the user equipment is handed over between cells, thereby guaranteeing the continuity of the MBMS of the user equipment.

公开(公告)号：US20170111295A1

公开(公告)日：2017-04-20

申请号：US15315708

申请日：2014-12-03

Applicant: METAMAKO TECHNOLOGY LP

Inventor： David SNOWDON ,  Scott McDAID ,  Charles THOMAS ,  Lindsay POWLES

IPC: H04L12/931 ,  H04L12/743 ,  H04L12/933

CPC classification number: H04L49/201 ,  G06F13/00 ,  H04L12/413 ,  H04L45/7457 ,  H04L49/101

Abstract: A method of data switching. Data is received at least one input port of a crosspoint switch. The crosspoint switch configurably casts the data to at least one output port of the crosspoint switch. The or each output port of the crosspoint switch is connected to a respective input of a logic function device such as a FPGA. The logic function device applies a logic function to data received from the or each output port of the crosspoint switch, such as address filtering or multiplexing, and outputs processed data to one or more respective logic function device output interfaces. Also, a method of switching involving circuit switching received data to an output while also copying the data to a higher layer function.

公开(公告)号：US20170104631A1

公开(公告)日：2017-04-13

申请号：US15290516

申请日：2016-10-11

Applicant: Hyundai Motor Company

Inventor： Jun Byung Chae ,  Jin Hwa Yun ,  Kang Woon Seo ,  Dong Ok Kim ,  Sang Woo Yu

IPC: H04L12/24 ,  H04L12/931 ,  H04L12/861

CPC classification number: H04L41/0823 ,  H04L49/201 ,  H04L49/9036 ,  H04L65/1069 ,  H04L65/4084 ,  H04L65/607 ,  H04L65/608 ,  H04L67/28 ,  H04L69/161 ,  H04L69/22 ,  H04L69/323 ,  H04L2012/40273

Abstract: An operation method of a communication node in a vehicle network is disclosed. A transmission method performed by a communication node may be configured to comprise performing an initialization operation for transmission of an audio video bridging (AVB) stream, performing an operation of obtaining a buffer for the transmission of the AVB stream, performing the transmission of the AVB stream stored in the buffer, and performing an operation of finalizing the transmission of the AVB stream. Accordingly, performance of the vehicle network can be enhanced.

公开(公告)号：US09619989B1

公开(公告)日：2017-04-11

申请号：US14267683

申请日：2014-05-01

Applicant: David Ewing ,  Mark Guagenti ,  Wade C. Patterson

Inventor： David Ewing ,  Mark Guagenti ,  Wade C. Patterson

IPC: G08B21/18

CPC classification number: H04L49/201 ,  G08B21/245

Abstract: An asset tracking system has a plurality of anchors. A tag communicates with the anchors as it is moved by a user being tracked by the system, and data based on communication between the tag and at least one of the anchors is transmitted to a server. The server determines a location of the tag based on the data and detects an occurrence of an event based on the location. The server also transmits to each of the anchors a tag alert message having a tag identifier identifying the tag and an event indicator associated with the occurrence of the event. At least one of the anchors transmits the tag identifier and the event indicator to the tag, which issues a warning to the user in response to tag alert message.

公开(公告)号：US20170085424A1

公开(公告)日：2017-03-23

申请号：US14857770

申请日：2015-09-17

Applicant: Telefonaktiebolaget L M Ericsson (publ)

Inventor： Rupak JHA ,  Shukri ABDALLAH ,  Sreeju SREEDHAR

IPC: H04L12/24 ,  H04L12/931 ,  H04L12/927 ,  H04L12/18 ,  H04L12/773

CPC classification number: H04L41/0816 ,  H04L12/18 ,  H04L45/02 ,  H04L45/16 ,  H04L45/20 ,  H04L45/60 ,  H04L47/806 ,  H04L49/201

Abstract: Exemplary systems, methods, apparatuses, and computer-readable media are provided for enabling PIM Assert re-election to be triggered to honor network configuration changes. Upon receipt of a PIM Join message for a multicast group, a router can enter a “Join” state and start an Expiry-Timer. Thereafter, the router may determine that it is an Assert-Loser for the multicast group via a PIM Assert election mechanism. At the expiration of the Expiry-Timer, instead of transitioning to a “No-Info” state and removing state for the multicast group, the router can, due to its status as the Assert-Loser for the multicast group, remain in the “Join” state and re-start the Expiry-Timer. Upon a later configuration change, the router can now automatically trigger a PIM Assert re-election, which can lead to the router potentially becoming the Assert-Winner without requiring a manual, traffic-disrupting intervention.

公开(公告)号：US20170048076A1

公开(公告)日：2017-02-16

申请号：US15335620

申请日：2016-10-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chenji Li ,  Quancai Li ,  Bo Man

IPC: H04L12/18 ,  H04L29/12 ,  H04L12/851 ,  H04L12/931

CPC classification number: H04L12/185 ,  H04L12/18 ,  H04L41/0816 ,  H04L41/5051 ,  H04L47/2483 ,  H04L49/201 ,  H04L61/2069

Abstract: A method and a device for maintaining a multicast group member are disclosed. The method includes sending a query message to a switch at intervals of a preset period, so that the switch sends the query message to each multicast group member included in a multicast group; acquiring a count value of current period query responses received by the switch in a current period; and maintaining, according to the count value of current period query responses and a count value of previous period query responses, the multicast group member included in the multicast group. The device includes a first sending module, an acquiring module, and a maintenance module. In the present disclosure, a multicast group member is maintained using a flow table maintained in a switch, which decreases load of a controller, and improves processing efficiency of maintaining, by the controller, the multicast group member.

Abstract translation: 公开了一种维护组播组成员的方法和设备。 该方法包括以预设周期的间隔向交换机发送查询消息，使得交换机向多播组中包括的每个组播组成员发送查询消息; 获取当前周期中由交换机接收的当前周期查询响应的计数值; 根据当前周期查询响应的计数值和前一周期查询响应的计数值，维护组播组中包含的组播组成员。 该设备包括第一发送模块，采集模块和维护模块。 在本公开中，使用维护在交换机中的流表来维护组播组成员，从而降低控制器的负担，提高了控制器维护组播组成员的处理效率。

公开(公告)号：US09565136B2

公开(公告)日：2017-02-07

申请号：US14494291

申请日：2014-09-23

Applicant: CAVIUM, INC.

Inventor： Gerald Schmidt ,  Harish Krishnamoorthy ,  Tsahi Daniel

IPC: H04L12/931

CPC classification number: H04L49/201

Abstract: A multicast replication engine includes a circuit implemented on a network chip to replicate packets, mirror packets and perform link switchovers. The multicast replication engine determines whether a switchover feature is enabled. If the switchover feature is not enabled, then the multicast replication engine mirrors the packet according to a mirror bit mask and to a mirror destination linked list. The mirror destination linked list corresponds to a mirroring rule. If the switchover feature is enabled, then the multicast replication engine replicates the packet according to a first live link of a failover linked list. The failover linked list corresponds to a switchover rule. The mirroring rule and the switchover rule are stored in the same table. Copies of the packet are forwarded according to a multicast rule that is represented by a hierarchical linked list with N tiers.

Abstract translation: 组播复制引擎包括在网络芯片上实现的复制数据包，镜像数据包和进行链路切换的电路。 组播复制引擎确定是否启用了切换功能。 如果未启用切换功能，则组播复制引擎会根据镜像位掩码镜像到镜像目的地链表。 镜像目标链表对应于镜像规则。 如果启用了切换功能，则组播复制引擎根据故障切换链表的第一个实时链路来复制数据包。 故障切换链表对应于切换规则。 镜像规则和切换规则存储在同一个表中。 根据由具有N个层级的分层链表表示的组播规则转发该分组的副本。

公开(公告)号：US09565125B2

公开(公告)日：2017-02-07

申请号：US14645184

申请日：2015-03-11

Applicant: Aerohive Networks, Inc.

Inventor： Liwu Liu ,  Jianlin Zeng

IPC: H04L12/863 ,  H04L12/931 ,  H04L12/867 ,  H04L12/835 ,  H04L12/823 ,  H04L29/06 ,  H04L12/18 ,  H04L12/819 ,  H04L12/873 ,  H04L12/801 ,  H04W4/06 ,  H04W28/14

CPC classification number: H04L12/1886 ,  H04L12/18 ,  H04L12/1881 ,  H04L47/15 ,  H04L47/215 ,  H04L47/30 ,  H04L47/32 ,  H04L47/527 ,  H04L47/621 ,  H04L47/6215 ,  H04L47/629 ,  H04L47/6295 ,  H04L49/201 ,  H04L65/4076 ,  H04L65/80 ,  H04L69/08 ,  H04W4/06 ,  H04W28/0268 ,  H04W28/14

Abstract: A technique allows stations to utilize an equal share of resources (e.g., airtime or throughput). This prevents slow stations from consuming too many resources (e.g., using up too much air time). Fairness is ensured by selective dropping after a multicast packet is converted to unicast. This prevents slow stations from using more than their share of buffer resources. Multicast conversion aware back-pressure into the network layer can be used to prevent unnecessary dropping of packets after multicast to unicast (1:n) conversion by considering duplicated transmit buffers. This technique helps achieve airtime/resource fairness among stations.

Abstract translation: 技术允许站利用相同的资源份额（例如，通话时间或吞吐量）。 这样可以防止慢站消耗太多的资源（例如使用太多的空中时间）。 组播数据包转换为单播后，通过选择性删除来保证公平性。 这样可以防止慢站使用超过其份额的缓冲资源。 可以通过考虑重复的发送缓冲区，将组播转换意识到背景压入网络层，以防止组播到单播（1：n）转换后不必要地丢弃数据包。 这种技术有助于实现车站之间的通话时间/资源公平。