公开(公告)号：US20220141286A1

公开(公告)日：2022-05-05

申请号：US17452794

申请日：2021-10-29

Applicant: Hitachi, Ltd.

Inventor： Kiyotaka TAKAHASHI ,  Yuji OGATA

IPC: H04L29/08 ,  G06F3/02

Abstract: To provide a relay apparatus and a relay method by which an app can be flexibly connected to a device and various apps can be connected to various devices to realize stable operation. The invention is a relay method for mediating a connection between an app and a device, and the relay method includes: when an input specification of data required for an app whose use is to be started is input, comparing an output specification held by each processing node provided in an existing data processing path with a data item included in the input specification; connecting an output of the data processing path to the app whose use is to be started if the existing processing node and the existing data processing path are able to satisfy the input specification; adding a new processing node and comparing an output specification of the new processing node with the input specification if the existing data processing path is not able to satisfy the input specification; and connecting an output of the new processing node to the app whose use is to be started if the new processing node is able to satisfy the input specification.

公开(公告)号：US20150026333A1

公开(公告)日：2015-01-22

申请号：US14332760

申请日：2014-07-16

Applicant: Hitachi, Ltd.

Inventor： Hiroyuki KUBO ,  Takeshi SHIBATA ,  Kiyotaka TAKAHASHI ,  Masahiro KIMURA

IPC: H04L12/26

CPC classification number: H04L41/12 ,  H04L43/026 ,  H04L43/04 ,  H04L43/0817 ,  H04L43/0852 ,  H04L45/3065

Abstract: A network management apparatus is configured to: receive transmitted information acquisition request; generate, based on topology storage area, an application edge device list indicating at least one edge network device through which the traffic for providing an application indicated by the information acquisition request passes; identify a route through which the traffic for providing the application indicated by the information acquisition request passes, based on the generated application edge device list and the provision source of the application indicated by the information acquisition request; acquire quality information on the identified route; and transmit the acquired quality information to the application management apparatus.

Abstract translation: 网络管理装置被配置为：接收发送的信息获取请求; 基于拓扑存储区域生成指示至少一个边缘网络设备的应用边缘设备列表，用于提供由所述信息获取请求指示的应用的通信通过所述边缘设备列表; 基于生成的应用边缘设备列表和由信息获取请求指示的应用的提供源，识别用于提供由信息获取请求指示的应用的流量通过的路由; 获取确定路线的质量信息; 并将获取的质量信息发送到应用管理装置。

公开(公告)号：US20140254600A1

公开(公告)日：2014-09-11

申请号：US14192398

申请日：2014-02-27

Applicant: Hitachi, Ltd.

Inventor： Takeshi SHIBATA ,  Kiyotaka TAKAHASHI ,  Masahiro KIMURA

IPC: H04L12/723

CPC classification number: H04L45/50 ,  H04L45/28

Abstract: A transport system comprises a transport apparatus, which is used to construct a transport network using MPLS-TP; and a control apparatus for establishing a path in the transport network. The transport apparatus is coupled to a transfer apparatus, which is used to construct a transfer network using a network protocol different from an MPLS-TP protocol and uses the network protocol to establish a path in the transfer network in an autonomous distributed manner. The control apparatus and the transfer apparatus use the network protocol of the transfer network to transmit/receive, via the transport apparatus, control messages for controlling the transfer network. The transport apparatus avoids notifying the transfer apparatus of the fact that the control apparatus is not in a normal state, in a case where the path established in the transport network is determined as the normal state, even the control apparatus is determined as the abnormal state.

Abstract translation: 一种传输系统，包括一种传输设备，用于构建使用MPLS-TP的传输网络; 以及用于在传输网络中建立路径的控制装置。 传送装置耦合到传送装置，该装置用于使用不同于MPLS-TP协议的网络协议构建传输网络，并使用网络协议以自主分布的方式在传输网络中建立路径。 控制装置和传送装置使用传送网络的网络协议经由传送装置发送/接收用于控制传送网络的控制消息。 运输装置避免传送装置通知控制装置不处于正常状态的事实，即在将传输网络中建立的路径确定为正常状态的情况下，即使控制装置被确定为异常状态 。

公开(公告)号：US20150372899A1

公开(公告)日：2015-12-24

申请号：US14725175

申请日：2015-05-29

Applicant: Hitachi, Ltd.

Inventor： Takeshi SHIBATA ,  Hiroyuki KUBO ,  Toshiaki SUZUKI ,  Masahiro KIMURA ,  Kiyotaka TAKAHASHI

IPC: H04L12/707 ,  H04L12/24 ,  H04L12/801 ,  H04L12/741 ,  H04L12/26

CPC classification number: H04L45/24 ,  H04L41/0896 ,  H04L41/5022 ,  H04L43/08 ,  H04L43/0852 ,  H04L43/087 ,  H04L43/0888 ,  H04L45/745 ,  H04L47/12

Abstract: A communication system is capable of re-examining an allocated communication path and a reserved communication path and implementing a rapid service provision in which a resource utilization efficiency is high without an interruption of service or an abrupt deterioration of quality when a reserved communication path is created in advance, and a reserved communication path is allocated according to an allocation request of a user. A communication path with quality assurance of data communication is implemented in a communication network with a communication path calculation device having a communication path managing unit and communication path calculating unit. The communication path managing unit manages reserved communication paths with quality assurance constructed based on a quality assurance communication path construction request of a communication system administrator and a use communication path allocated from among the reserved communication paths according to the quality assurance communication path allocation request of the communication network user.

Abstract translation: 通信系统能够重新检查分配的通信路径和保留的通信路径，并且在创建预留的通信路径时实现资源利用效率高而不中断服务或质量突然劣化的快速服务提供 并且根据用户的分配请求分配保留的通信路径。 在具有通信路径管理单元和通信路径计算单元的通信路径计算装置的通信网络中实现具有数据通信质量保证的通信路径。 通信路径管理单元根据通信系统管理员的质量保证通信路径构造请求和从保留通信路径中分配的使用通信路径构建的质量保证管理保留通信路径，根据该保留通信路径分配请求 通信网络用户。

公开(公告)号：US20140086040A1

公开(公告)日：2014-03-27

申请号：US13941670

申请日：2013-07-15

Applicant: HITACHI, LTD.

Inventor： Kiyotaka TAKAHASHI ,  Daisuke MASHIMO ,  Yoshihiro ASHI

IPC: H04L12/24

CPC classification number: H04L41/0654 ,  H04L41/0663 ,  H04L45/22 ,  H04L45/28 ,  H04L45/50

Abstract: If, in a situation where the information about the OAM function of a first network including router networks is collected, a fault affecting a service used by a user occurs in a transmission network, which is a second network that acts as a relay for the first network and includes a plurality of transmission devices having a fault monitoring function, the transmission network promptly reports the fault to the router networks by actively using the OAM function of the router networks in order to achieve rapid fault recovery.

Abstract translation: 如果在收集包括路由器网络的第一网络的OAM功能的信息的情况下，影响用户使用的服务的故障发生在作为第一网络的继电器的第二网络的传输网络中 网络，包括具有故障监控功能的多个传输设备，传输网络通过主动使用路由器网络的OAM功能迅速向路由器网络报告故障，以实现快速故障恢复。

公开(公告)号：US20150010009A1

公开(公告)日：2015-01-08

申请号：US14323255

申请日：2014-07-03

Applicant: Hitachi, Ltd.

Inventor： Kiyotaka TAKAHASHI ,  Yoshihiro ASHI

IPC: H04L12/46 ,  H04L12/713 ,  H04L12/751

CPC classification number: H04L12/4633 ,  H04L41/0879 ,  H04L45/10 ,  H04L45/50 ,  H04L45/586

Abstract: A data transport system comprises transport apparatus and at least one computer. The transport apparatus construct a second network coupled to a first network which is constructed by a communication apparatus. A logical path is built between a first transport apparatus and the computer. The first transport apparatus is configured to: hold management information, which associates identification information of a port with logical path identification information; refer to the management information to identify the logical path identification information that is associated with the port through which the control information has been received; and assign the identified logical path identification information to the control information, and transmit the control information over the logical path. The computer assigns the logical path identification information assigned to the control information to response information, and transmits the response information to the second network.

Abstract translation: 数据传输系统包括传送装置和至少一个计算机。 该传送装置构成一第二网络，该第二网络由一通信装置构成的第一网络。 在第一传送设备和计算机之间建立逻辑路径。 第一传送装置被配置为：保持将端口的识别信息与逻辑路径识别信息相关联的管理信息; 参考管理信息来识别与已经接收到控制信息的端口相关联的逻辑路径识别信息; 并将所识别的逻辑路径识别信息分配给控制信息，并通过逻辑路径发送控制信息。 计算机将分配给控制信息的逻辑路径识别信息分配给响应信息，并将响应信息发送到第二网络。

公开(公告)号：US20140185607A1

公开(公告)日：2014-07-03

申请号：US14133225

申请日：2013-12-18

Applicant: HITACHI, LTD.

Inventor： Daisuke MASHIMO ,  Kiyotaka TAKAHASHI ,  Takeshi SHIBATA ,  Yoshihiro ASHI

IPC: H04L12/751

CPC classification number: H04L45/10 ,  H04L41/0896 ,  H04L45/04 ,  H04L45/50

Abstract: In interworking systems that utilize IP/MPLS protocol processing to operate a centralized control server within a MPLS-TP network as a pseudo-router unit; a system improves the utilization rate of the MPLS-TP network by establishing default paths beforehand as a precondition to coupling between MPLS-TP network edge devices and mapping a plurality of IP/MPLS paths between the same edge devices to the common default paths when mapping to provide IP/MPLS network connectivity.

Abstract translation: 在使用IP / MPLS协议处理的互通系统中，将MPLS-TP网络内的集中控制服务器作为伪路由器单元进行操作; 系统通过预先建立缺省路径，提高MPLS-TP网络的利用率，作为MPLS-TP网络边缘设备之间耦合的前提条件，并将映射到同一边缘设备之间的多个IP / MPLS路径映射到公共默认路径 提供IP / MPLS网络连接。