公开(公告)号：US09535730B2

公开(公告)日：2017-01-03

申请号：US14072967

申请日：2013-11-06

Applicant: Hitachi, Ltd.

Inventor： Michitaka Okuno ,  Yuji Tsushima

IPC: G06F9/45 ,  G06F9/455

CPC classification number: G06F9/45533

Abstract: An information processing unit of a communication apparatus includes a non-volatile memory and a volatile memory. A control unit of the communication apparatus loads the boot image from the non-volatile memory to the volatile memory upon activation of the communication apparatus, activates the virtual machine template in the loaded boot image on the volatile memory, deactivates the activated virtual machine template after reconfiguring the activated virtual machine template to minimum required configuration to execute a virtual machine. Upon receipt of a request for addition of communication service, the control unit creates a replicate virtual machine template by replicating the deactivated virtual machine template, activates the replicate virtual machine template, reconfigures the activated replicate virtual machine template to configuration according to the request for addition of communication service, and executes the reconfigured replicate virtual machine template as a virtual machine to provide the communication service.

Abstract translation: 通信装置的信息处理单元包括非易失性存储器和易失性存储器。 通信装置的控制单元在通信装置激活时将启动图像从非易失性存储器加载到易失性存储器，激活装载的引导映像中的虚拟机模板在易失性存储器上，在激活的虚拟机模板之后停用激活的虚拟机模板 将激活的虚拟机模板重新配置为执行虚拟机所需的最低配置。 在接收到添加通信服务的请求时，控制单元通过复制停用的虚拟机模板来创建复制虚拟机模板，激活复制虚拟机模板，根据添加请求重新配置激活的复制虚拟机模板进行配置 的通信服务，并且执行重新配置的复制虚拟机模板作为虚拟机以提供通信服务。

公开(公告)号：US09407459B2

公开(公告)日：2016-08-02

申请号：US14412500

申请日：2013-02-20

Applicant: HITACHI, LTD.

Inventor： Michitaka Okuno ,  Takashi Yokoyama ,  Kozo Ikegami

IPC: H04L12/46 ,  H04L12/741 ,  H04L12/931 ,  H04L29/06 ,  H04L12/413

CPC classification number: H04L12/4675 ,  H04L12/413 ,  H04L12/4641 ,  H04L12/4645 ,  H04L45/74 ,  H04L49/70 ,  H04L69/08

Abstract: Upon receipt of an intercepted first Ethernet Frame, a communication system converts the first Ethernet Frame into a second Ethernet Frame including a second identifier based on the first identifier and the conversion information, and sends the second Ethernet Frame toward a first input/output port identified by the second identifier. The system, in sending an Ethernet Frame on which communication service has been executed from the virtual machine, converts the Ethernet Frame on which the communication service has been executed into a third Ethernet Frame including a third identifier identifying a second input/output port of the virtual machine which has executed the communication service. The system converts the third Ethernet Frame into the first Ethernet Frame including the first identifier based on the third identifier and the conversion information and sends the first Ethernet Frame toward the destination of the first Ethernet Frame.

Abstract translation: 在接收到被拦截的第一以太网帧时，通信系统基于第一标识符和转换信息将第一以太网帧转换成包括第二标识符的第二以太网帧，并且将第二以太网帧发送到被识别的第一输入/输出端口 通过第二个标识符。 该系统在从虚拟机发送已经执行了通信服务的以太网帧时，将已经执行通信服务的以太网帧转换成第三以太网帧，该第三以太网帧包括标识第二输入/输出端口的第三标识符 执行通信服务的虚拟机。 该系统基于第三标识符和转换信息将第三以太网帧转换成包括第一标识符的第一以太网帧，并将第一以太网帧发送到第一以太网帧的目的地。

公开(公告)号：US20150195104A1

公开(公告)日：2015-07-09

申请号：US14412500

申请日：2013-02-20

Applicant: HITACHI, LTD.

Inventor： Michitaka Okuno ,  Takashi Yokoyama ,  Kozo Ikegami

IPC: H04L12/46 ,  H04L12/741 ,  H04L12/931

CPC classification number: H04L12/4675 ,  H04L12/413 ,  H04L12/4641 ,  H04L12/4645 ,  H04L45/74 ,  H04L49/70 ,  H04L69/08

Abstract: Upon receipt of an intercepted first Ethernet Frame, a communication system converts the first Ethernet Frame into a second Ethernet Frame including a second identifier based on the first identifier and the conversion information, and sends the second Ethernet Frame toward a first input/output port identified by the second identifier. The system, in sending an Ethernet Frame on which communication service has been executed from the virtual machine, converts the Ethernet Frame on which the communication service has been executed into a third Ethernet Frame including a third identifier identifying a second input/output port of the virtual machine which has executed the communication service. The system converts the third Ethernet Frame into the first Ethernet Frame including the first identifier based on the third identifier and the conversion information and sends the first Ethernet Frame toward the destination of the first Ethernet Frame.

Abstract translation: 在接收到被拦截的第一以太网帧时，通信系统基于第一标识符和转换信息将第一以太网帧转换成包括第二标识符的第二以太网帧，并且将第二以太网帧发送到被识别的第一输入/输出端口 通过第二个标识符。 该系统在从虚拟机发送已经执行了通信服务的以太网帧时，将已经执行通信服务的以太网帧转换成第三以太网帧，该第三以太网帧包括标识第二输入/输出端口的第三标识符 执行通信服务的虚拟机。 该系统基于第三标识符和转换信息将第三以太网帧转换成包括第一标识符的第一以太网帧，并将第一以太网帧发送到第一以太网帧的目的地。

公开(公告)号：US09769265B2

公开(公告)日：2017-09-19

申请号：US14734299

申请日：2015-06-09

Applicant: Hitachi, Ltd.

Inventor： Masashi Yano ,  Tsutomu Hirao ,  Michitaka Okuno ,  Nodoka Mimura ,  Daisuke Ishii ,  Yuta Muto

IPC: G06F11/00 ,  H04L29/08

CPC classification number: H04L67/148 ,  H04L29/08639

Abstract: A communication system comprising computers and a management computer, wherein the computers include a communication control unit configured to control a communication using a session of a terminal. The communication control unit manages a database storing in a plurality of pieces of session information. The management computer includes property management information for managing a property of each of the plurality of pieces of session information. The session information migration control unit is configured to: detect a migration trigger of the plurality of pieces of session information stored in a first database; select the plurality of pieces of session information from the plurality of pieces of session information stored in the first database based on the property management information; determine a migration order for the selected plurality of pieces of session information based on the property of the each of the selected plurality of pieces of session information.

公开(公告)号：US09600380B2

公开(公告)日：2017-03-21

申请号：US14540615

申请日：2014-11-13

Applicant: HITACHI, LTD.

Inventor： Kazuhiko Mizuno ,  Michitaka Okuno ,  Yuji Tsushima

IPC: G06F11/00 ,  G06F11/14 ,  G06F11/30 ,  G06F11/20 ,  G06F11/34 ,  G06F9/455

CPC classification number: G06F11/1484 ,  G06F9/45558 ,  G06F11/1438 ,  G06F11/2035 ,  G06F11/3006 ,  G06F11/301 ,  G06F11/3051 ,  G06F11/3055 ,  G06F11/3409 ,  G06F2009/45575 ,  G06F2009/45591 ,  G06F2201/81 ,  G06F2201/86

Abstract: When detecting the configuration change or the operating state of a virtual machine of the main system, a VM management unit changes a value of a determination index of the virtual machine, and selects a virtual machine of the standby system/auxiliary system used for failure recovery of the virtual machine of the main system on the basis of a value of the determination index. A pattern generation unit provides the virtual machine of the standby system/auxiliary system selected by the VM management unit.

公开(公告)号：US09521056B2

公开(公告)日：2016-12-13

申请号：US14508379

申请日：2014-10-07

Applicant: HITACHI, LTD.

Inventor： Michitaka Okuno

IPC: H04L12/26 ,  H04W28/02 ,  H04W80/06 ,  H04L12/801 ,  H04L12/24 ,  H04L29/08

CPC classification number: H04L43/0835 ,  H04L41/5067 ,  H04L43/0882 ,  H04L43/16 ,  H04L47/14 ,  H04L67/28 ,  H04L67/322 ,  H04W28/0273 ,  H04W28/0289 ,  H04W80/06

Abstract: A control device determines whether communications that a base station accommodates are congested, based on obtained information, and identifies a terminal that is accommodated in the base station in which it is determined that the communications are congested, as a terminal of which communications a proxy device is to control. The proxy device controls communications between the base station and a server, by using a protocol that acknowledges that the data has reached a reception side, calculates a loss rate in communications by the identified terminal are to be discarded, by utilizing acknowledgement packets which are used by the protocol, and relays a communication of the identified terminal, by a transmission band which has been reduced by the calculated loss rate portion.

Abstract translation: 控制装置基于获得的信息来确定基站适应的通信是否拥塞，并且识别容纳在其中确定通信拥塞的基站中的终端，作为通信的终端，代理设备 是控制。 代理设备通过使用确认数据已经到达接收侧的协议来控制基站和服务器之间的通信，通过利用所使用的确认分组来计算通过识别的终端的通信中的丢失率被丢弃 并且通过已经被计算的损失率部分减少的传输频带来中继所识别的终端的通信。

公开(公告)号：US08868998B2

公开(公告)日：2014-10-21

申请号：US13709468

申请日：2012-12-10

Applicant: Hitachi, Ltd.

Inventor： Michitaka Okuno ,  Takeki Yazaki

IPC: H04L1/18 ,  H04L1/16

CPC classification number: H04L1/18 ,  H04L1/1678 ,  H04L1/1858 ,  H04L1/188 ,  H04L1/1887

Abstract: Packet communication apparatus connects plural LANs to each other, in termination of a WAN that conducts data communication using handshake communication protocol. Apparatus buffers data packets between the LANs, and transfers, as a proxy, response packets and data packets to a terminal device. The apparatus stops transmission of data packets belonging to an arbitrary packet flow when the reception of the response packets belonging to the packet flow from the WAN is ceased for a network outage detection time or more set, while transmitting data packets belonging to the arbitrary packet flow. The apparatus retransmits a first data packet whose corresponding response packet is not received, belonging to the packet flow immediately after the data packet transmission stops, and retransmits all data packets whose corresponding response packets are not received, belonging to the packet flow, when receiving the response packets from the WAN.

Abstract translation: 分组通信装置在使用握手通信协议进行数据通信的WAN终端中彼此连接多个LAN。 设备缓存LAN之间的数据分组，并作为代理将响应分组和数据分组传送到终端设备。 在发送属于任意分组流的数据分组的情况下，当属于来自WAN的分组流的响应分组的接收被停止以进行网络中断检测时间以上时，该装置停止发送属于任意分组流的数据分组 。 该装置在数据包发送停止之后立即重发属于分组流的第一数据包，该第一数据包属于分组流，并且在接收到分组流时重新发送属于分组流的未接收到的相应响应分组的所有数据分组 响应来自WAN的数据包。