公开(公告)号：US20160041888A1

公开(公告)日：2016-02-11

申请号：US14919553

申请日：2015-10-21

Applicant: BROCADE COMMUNICATIONS SYSTEMS, INC.

Inventor： Srinivas S. Hanabe ,  Jitendra Verma ,  Eswara S. P. Chinthalapati

IPC: G06F11/20

CPC classification number: G06F11/2002 ,  G06F2201/805 ,  G06F2201/85 ,  H04L41/0213 ,  H04L41/0659 ,  H04L43/0817 ,  H04L43/10

Abstract: One embodiment of the present invention provides a fault-management system. During operation, the system identifies a failure at a remote location associated with a communication service. The system then determines a local port used for the communication service, and suspends the local port, thereby allowing the failure to be detected by a device coupled to the local port.

Abstract translation: 本发明的一个实施例提供一种故障管理系统。 在操作期间，系统识别与通信服务相关联的远程位置处的故障。 然后，系统确定用于通信服务的本地端口，并挂起本地端口，从而允许由耦合到本地端口的设备检测到故障。

公开(公告)号：US09219640B2

公开(公告)日：2015-12-22

申请号：US14083351

申请日：2013-11-18

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Johnson YS Chiang ,  Jeffrey CH Liu ,  Ying-Kai Wang ,  Hao-Ting Shih

IPC: H03M13/00 ,  H04L12/24 ,  G06F11/20

CPC classification number: H04L41/0654 ,  G06F11/00 ,  G06F11/2002

Abstract: A system and computer program product for performing failover in a redundancy group, where the redundancy group comprises a plurality of routers including an active router and a standby router, the failover being characterized by zero black hole or significantly reduced black hole conditions versus a conventional failover system. The system comprises a processing unit connected to the memory and adapted to execute the plurality of instructions, which cause an information appliance to: receive an incoming message at a switch; send a request of identification to the plurality of routers to identify a current active router, where the current active router represents a virtual router of the redundancy group; and in response to receiving a reply containing an identification from the current active router within a predetermined time, forward the incoming message to the current active router.

Abstract translation: 一种用于在冗余组中执行故障切换的系统和计算机程序产品，其中所述冗余组包括多个路由器，所述多个路由器包括活动路由器和备用路由器，所述故障转移的特征在于零黑洞或显着减少的黑洞条件与常规故障切换 系统。 该系统包括连接到存储器并适于执行多个指令的处理单元，这些指令使得信息设备：在开关处接收输入消息; 向所述多个路由器发送识别请求以识别当前活动路由器，其中所述当前活动路由器表示所述冗余组的虚拟路由器; 并且响应于在预定时间内从当前活动路由器接收到包含标识的答复，将所述传入消息转发到当前活动路由器。

公开(公告)号：US09201743B2

公开(公告)日：2015-12-01

申请号：US14000714

申请日：2012-01-24

Applicant: Sebastien Brunel ,  Laurent Barbero

Inventor： Sebastien Brunel ,  Laurent Barbero

IPC: G06F11/00 ,  G06F11/20 ,  H04M3/42 ,  H04M7/00 ,  H04Q3/00 ,  H04L29/06

CPC classification number: G06F11/2002 ,  H04L65/1006 ,  H04L65/1026 ,  H04L65/1036 ,  H04L65/1073 ,  H04M3/42314 ,  H04M7/0066 ,  H04Q3/0025

Abstract: This backup SIP server (BSS) comprises: means (LMM) for detecting whether an Internet protocol link is not working, and enabling the use of a backup SIP signaling link to the main site via a SIP gateway and a public telephone network when the Internet protocol link is not working; means for transferring SIP signaling information on this backup link; means for, when receiving a registration request from a terminal of the remote site while the Internet protocol link is not working, registering this terminal locally and forwarding the registration request to the main site via the backup link; means (PQM) for storing policies defining what services, supplied by the main SIP server, are compatible with said backup SIP signaling link, and for altering the content of at least one field in each SIP signaling message addressed to the main SIP server before transferring this SIP signaling message on the backup link, this content being altered according to said policies.

Abstract translation: 该备份SIP服务器（BSS）包括：用于检测因特网协议链路是否不工作的装置（LMM），以及当因特网时通过SIP网关和公用电话网络使用到主站点的备用SIP信令链路 协议链接不起作用; 用于在该备份链路上传送SIP信令信息的装置; 用于当所述因特网协议链路不工作时从所述远程站点的终端接收到注册请求时在本地注册该终端并经由所述备份链路将所述注册请求转发到所述主站点的装置; 用于存储定义由主SIP服务器提供的服务与所述备用SIP信令链路兼容的策略的装置（PQM），以及用于在转移之前改变寻址到主SIP服务器的每个SIP信令消息中的至少一个字段的内容 该备用链路上的SIP信令消息，根据所述策略改变该内容。

公开(公告)号：US09176834B2

公开(公告)日：2015-11-03

申请号：US14031767

申请日：2013-09-19

Applicant: GlobalFoundries U.S. 2 LLC

Inventor： Douglas Griffith ,  Angela Astrid Jaehde ,  Matthew Ryan Ochs

IPC: G06F11/00 ,  G06F11/20

CPC classification number: G06F11/2028 ,  G06F11/0751 ,  G06F11/2002 ,  G06F11/2025 ,  G06F11/2038 ,  G06F11/2048

Abstract: A method is provided in the illustrative embodiments. A failure is detected in a first computing node serving an application in a cluster. A subset of actions is selected from a set of actions, the set of actions configured to transfer the serving of the application from the first computing node to a second computing node in the cluster. A waiting period is set for the first computing node. The first computing node is allowed to continue serving the application during the waiting period. During the waiting period, concurrently with the first computing node serving the application, the subset of actions is performed at the second computing node. Responsive to receiving a signal of activity from the first computing node during the waiting period, the concurrent operation of the second computing node is aborted.

Abstract translation: 在说明性实施例中提供了一种方法。 在为集群中的应用服务的第一计算节点中检测到故障。 从一组动作中选择动作的子集，所述一组动作被配置为将应用的服务从第一计算节点传送到群集中的第二计算节点。 为第一个计算节点设置一个等待时间。 允许第一个计算节点在等待期间继续为应用服务。 在等待期间，与服务于应用的第一计算节点同时，在第二计算节点处执行动作子集。 响应于在等待期间从第一计算节点接收到活动的信号，第二计算节点的并发操作被中止。

公开(公告)号：US20150278044A1

公开(公告)日：2015-10-01

申请号：US14737201

申请日：2015-06-11

Applicant: AT&T Intellectual Property I, L.P.

Inventor： William S. Taylor ,  David Massengill ,  John Hollingsworth

IPC: G06F11/20 ,  G06F11/30 ,  G06F11/34

CPC classification number: G06F11/2007 ,  G06F11/2002 ,  G06F11/3006 ,  G06F11/3409 ,  H04L12/4641 ,  H04L41/065 ,  H04L41/0659 ,  H04L41/0672 ,  H04L43/0817 ,  H04L45/00 ,  H04L45/22 ,  H04L45/28

Abstract: An example involves assigning a first logical circuit identifier to a logical failover circuit prior to a failure of a dedicated logical circuit. The dedicated logical circuit includes first variable communication paths to route data through a first local access and transport area (LATA), second variable communication paths to route the data through a second LATA, and fixed communication paths to route the data between the first LATA, the second LATA, and an inter-exchange carrier. The failure of the dedicated logical circuit is identified based on status information pertinent to the dedicated logical circuit. The logical failover circuit includes an alternate communication path for communicating the data. When the first logical circuit identifier does not match the second logical circuit identifier, the second logical circuit identifier is renamed to match the first logical circuit identifier. The data is rerouted to the logical failover circuit without manual intervention.

Abstract translation: 一个示例涉及在逻辑故障转移电路在专用逻辑电路发生故障之前分配第一逻辑电路标识符。 专用逻辑电路包括用于通过第一本地访问和传输区域（LATA）路由数据的第一可变通信路径，以及通过第二LATA路由数据的第二可变通信路径，以及固定通信路径，以在第一LATA， 第二个LATA，以及一个交易间的承运人。 基于与专用逻辑电路有关的状态信息来识别专用逻辑电路的故障。 逻辑故障转移电路包括用于传送数据的备用通信路径。 当第一逻辑电路标识符与第二逻辑电路标识符不匹配时，第二逻辑电路标识符被重新命名以匹配第一逻辑电路标识符。 数据被重新路由到逻辑故障转移电路，无需人工干预。

公开(公告)号：US09148365B2

公开(公告)日：2015-09-29

申请号：US14537019

申请日：2014-11-10

Applicant: AT&T Intellectual Property I, L.P.

Inventor： William S. Taylor ,  David Massengill ,  John Hollingsworth

IPC: H04L12/703 ,  H04L12/707 ,  H04L12/26 ,  G06F11/34 ,  G06F11/20 ,  H04L12/24 ,  H04L12/701

CPC classification number: H04L41/0654 ,  G06F11/2002 ,  G06F11/3466 ,  H04L41/0663 ,  H04L41/22 ,  H04L41/5003 ,  H04L41/5051 ,  H04L41/509 ,  H04L43/0811 ,  H04L45/00 ,  H04L45/22 ,  H04L45/28 ,  H04L49/557

Abstract: An example method involves generating, with a network management module, a data structure to store current reroute statistics based on rerouting of data from a logical circuit that has failed to a logical failover circuit in a network. The current reroute statistics include trap data corresponding to the logical circuit. The trap data includes a committed burst size. The logical circuit is identified by a first logical circuit identifier. The logical failover circuit is identified by a second logical circuit identifier. The first and second logical circuit identifiers are renamed until the logical circuit has been restored from failure. The table is updated with the network management module to store updated reroute statistics. The updated reroute statistics include updated trap data corresponding to the logical circuit. The updated reroute statistics are based on a change in status of the logical circuit resulting from the committed burst size having been exceeded.

Abstract translation: 一个示例性方法包括使用网络管理模块生成数据结构，以便根据从网络中的逻辑故障切换电路故障的逻辑电路重新路由数据来存储当前的重新路由统计。 当前的重新路由统计信息包括对应于逻辑电路的陷阱数据。 陷阱数据包括承诺突发大小。 逻辑电路由第一逻辑电路标识符标识。 逻辑故障转移电路由第二逻辑电路标识符标识。 第一和第二逻辑电路标识符被重新命名，直到逻辑电路从故障恢复为止。 该表更新为网络管理模块以存储更新的重新路由统计信息。 更新的重新路由统计信息包括对应于逻辑电路的更新的陷阱数据。 更新的重新路由统计信息基于由已经超过的已提交突发大小导致的逻辑电路的状态变化。

公开(公告)号：US09146820B2

公开(公告)日：2015-09-29

申请号：US13873101

申请日：2013-04-29

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Abdullah Alfadhly ,  Uthman Baroudi ,  Mohamed Farag Younis

IPC: G06F11/00 ,  G06F11/20

CPC classification number: G06F11/2002 ,  H04L41/0654 ,  H04W24/04

Abstract: The WSAN simultaneous failures recovery method ranks each node based on the number of hops to a pre-designated root node in the network. The method identifies some nodes as cluster heads based on the number of their children in the recovery tree. The method assigns a recovery weight and a nearby cluster node to each node. Nearby cluster nodes serve as gateways to other nodes that belong to that cluster. The recovery weight is used to decide which node is better to move in order to achieve lower recovery cost. The recovery method uses the same on-going set of actors to restore connectivity. Simulation results have demonstrated that the recovery method can achieve low recovery cost per failed node in small and large networks. The results have also shown that clustering leads to lower recovery cost if the sub-network needs to re-establish links with the rest of the network.

Abstract translation: WSAN同时故障恢复方法根据到网络中预先指定的根节点的跳数对每个节点进行排序。 该方法根据恢复树中的子项数量将某些节点标识为簇头。 该方法为每个节点分配恢复权重和附近的集群节点。 附近的集群节点作为属于该集群的其他节点的网关。 恢复重量用于决定哪个节点更好地移动以实现较低的恢复成本。 恢复方法使用相同的正在进行的actors来恢复连接。 模拟结果表明，恢复方法可以在小型和大型网络中实现每个故障节点的低恢复成本。 结果还表明，如果子网需要重新建立与网络其余部分的链路，则聚类导致降低恢复成本。

公开(公告)号：US09110864B2

公开(公告)日：2015-08-18

申请号：US13925872

申请日：2013-06-25

Applicant: International Business Machines Corporation

Inventor： Hani T. Jamjoom ,  Shriram Rajagopalan ,  Daniel J. Williams

IPC: G06F11/00 ,  G06F11/20 ,  G06F11/14

CPC classification number: G06F11/2002 ,  G06F11/1484 ,  G06F11/2028 ,  G06F11/2038

Abstract: A fault tolerance method and system for VMs on a cluster identifies a client state for each client session for those applications. The method replicates the client session onto a primary and a backup VM, and uses a network controller and orchestrator to direct network traffic to the primary VM and to periodically replicate the state onto the backup VM. In case of a VM failure, the method reroutes network traffic of states for which the failed VM serves as a primary to the corresponding backup, and replicates states without a backup after the failure onto another VM to create new backups. The method may be used as part of a method or system implementing the split/merge paradigm.

Abstract translation: 群集上的虚拟机的容错方法和系统针对这些应用程序的每个客户端会话标识客户端状态。 该方法将客户端会话复制到主备份VM和备份虚拟机上，并使用网络控制器和业务流程将网络流量引导到主虚拟机，并将状态定期复制到备份虚拟机上。 万一发生VM故障，该方法将故障虚拟机作为主服务器的状态的网络流量重新路由到相应的备份，并将故障后的备份状态复制到另一个虚拟机上以创建新的备份。 该方法可以用作实现分割/合并范例的方法或系统的一部分。

公开(公告)号：US20150149820A1

公开(公告)日：2015-05-28

申请号：US14192531

申请日：2014-02-27

Applicant: SK hynix Inc.

Inventor： Choung-Ki SONG

IPC: G06F11/20

CPC classification number: G06F11/1441 ,  G06F11/1456 ,  G06F11/2002 ,  G06F11/2005 ,  G06F11/2007 ,  G06F11/201 ,  G06F11/2017

Abstract: A memory unit including a first data transferring/receiving unit suitable for transferring/receiving data through a first data bus for communication with a host, a second data transferring/receiving unit suitable for transferring/receiving data through a second data bus for a data backup, and a control unit suitable for controlling the first data transferring/receiving unit and the second data transferring/receiving unit to be activated or inactivated according to whether a power failure occurs in the host.

Abstract translation: 一种存储单元，包括适于通过第一数据总线传送/接收数据以与主机通信的第一数据传送/接收单元，适于通过第二数据总线传送/接收数据以进行数据备份的第二数据传送/接收单元 以及适于根据主机中是否发生电源故障来控制要激活或失活的第一数据传送/接收单元和第二数据传送/接收单元的控制单元。

公开(公告)号：US20150071067A1

公开(公告)日：2015-03-12

申请号：US14019723

申请日：2013-09-06

Applicant: Todd Martin ,  Wei Huang ,  Sonia Kiang Rovner

Inventor： Todd Martin ,  Wei Huang ,  Sonia Kiang Rovner

IPC: H04L12/805

CPC classification number: H04L47/365 ,  G06F11/0709 ,  G06F11/1464 ,  G06F11/2002 ,  G06F11/2005 ,  G06F2201/86 ,  H04L41/0659 ,  H04L41/12 ,  H04L43/0858 ,  H04L43/10 ,  H04L45/10 ,  H04L45/26 ,  H04L45/40 ,  H04L47/28 ,  H04L47/34 ,  H04L67/12 ,  H04L69/28 ,  H04W84/12

Abstract: Systems and techniques are described for a path maximum transmission unit (MTU) discovery method that allows the sender of IP packets to discover the MTU of packets that it is sending over a conduit to a given destination. The MTU is the largest packet that can be sent through the network along a path without requiring fragmentation. The path MTU discovery method actively probes each sending path of each conduit with fragmentation enabled to determine a current MTU and accordingly increase or decrease the conduit MTU. The path MTU discovery process is resilient to errors and supports retransmission if packets are lost in the discovery process. The path MTU discovery process is dynamically adjusted at a periodic rate to adjust to varying network conditions.

Abstract translation: 描述了用于路径最大传输单元（MTU）发现方法的系统和技术，其允许IP分组的发送者发现其通过管道发送到给定目的地的分组的MTU。 MTU是可以通过网络沿路径发送的最大数据包，而不需要分段。 路径MTU发现方法主动探测每个管道的每个发送路径，使分段启用，以确定当前的MTU，从而增加或减少管道MTU。 路由MTU发现过程对于错误是有韧性的，并且如果在发现过程中丢失数据包，则支持重传。 路径MTU发现过程以周期性速率进行动态调整，以适应不同的网络条件。