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1. 发明授权

US10673721B2 Anomaly detection apparatus, anomaly detection system, and anomaly detection method using correlation coefficients 审中-公开
公开(公告)号：US10673721B2
公开(公告)日：2020-06-02
申请号：US15758739
申请日：2016-03-24
申请人： Hitachi, Ltd.
发明人： Kyosuke Hashimoto , Hitoshi Yabusaki , Junji Kinoshita
IPC分类号： G06F13/00 , H04L12/26 , H04L12/24
摘要： An anomaly detection apparatus for detecting data flow anomalies classes a plurality of data flows on the basis of similarity in time series changes in the data amounts of the data flows; calculates a correlation coefficient at a normal time and a correlation coefficient at a certain timing between at least two data flows belonging to the same class; and determines that at least one of the at least two data flows is anomalous when a difference between the correlation coefficient at the normal time and the correlation coefficient at the certain timing is greater than a predetermined threshold.

2. 发明授权

US10560311B2 Management apparatus, management method, and recording medium 有权
公开(公告)号：US10560311B2
公开(公告)日：2020-02-11
申请号：US15743914
申请日：2015-10-14
申请人： HITACHI, LTD.
发明人： Takaya Ide , Hitoshi Yabusaki , Junji Kinoshita , Osamu Takada
IPC分类号： H04L12/24 , H04L12/26 , H04L12/54 , G06F9/455
摘要： A management apparatus executes: receiving from a given communication apparatus where a fault has occurred, fault information; selecting a given flow that passes through the given communication apparatus from among a group of flows on the basis of the identification information of the given communication apparatus included in the fault information; determining whether the communication pattern of the given flow is similar to the given time series data indicating the change over time of the traffic within a period from a set period prior to the fault occurrence date and time to the fault occurrence date and time for the given flow; calculating the certainty that the given flow has been transmitted on the fault occurrence date and time on the basis of a frequency of appearance of the traffic of the communication pattern determined to be similar; and outputting calculation results.

3. 发明授权

US09537765B2 Transport control server, transport control system, and transport control method 有权
标题翻译：运输控制服务器，运输控制系统和运输控制方法
公开(公告)号：US09537765B2
公开(公告)日：2017-01-03
申请号：US14684587
申请日：2015-04-13
申请人： Hitachi, Ltd.
发明人： Daisuke Matsubara , Hitoshi Yabusaki
IPC分类号： H04L12/753 , H04L12/751 , H04L12/707 , H04L12/721 , H04L12/723
CPC分类号： H04L45/48 , H04L45/10 , H04L45/123 , H04L45/22 , H04L45/50
摘要： A passage channel is calculated by taking into account a plurality of requirements having different importance degrees. A channel calculation unit (202) of a transport control server (100) calculates a plurality of passage channel candidates with respect to a passage setting request wherein an active passage candidate and a standby passage candidate are paired in the passage channel candidate; and calculates the occurrence number of phenomena that violate a predetermined requirement relating an operation of the active passage and the standby passage, or a value of a network element for determining whether the requirement is violated, with respect to each passage channel candidate. A cost calculation unit (205) calculates the cost of a passage channel from the calculated number of occurrence, network element value, and a predetermined cost calculation coefficient corresponding to the requirement. A GUI control unit (display control unit) 201 displays identification information of the passage channel candidate, the number of occurrences or the network element value, and the cost, as a list on, for example, a management terminal.
摘要翻译：通过考虑具有不同重要度的多个要求来计算通过通道。传输控制服务器（100）的信道计算单元（202）针对通过设置请求计算多个通过信道候选，其中在通过信道候选中配置有效通过候选和备用通过候选; 并且针对每个通道候选，计算违反与活动通道和备用通道的操作相关的预定要求的现象的发生次数或用于确定是否违反要求的网络元件的值。成本计算单元（205）根据计算出的发生次数，网络元素值和与要求对应的预定成本计算系数来计算通行信道的成本。 GUI控制单元（显示控制单元）201将通过通道候补的识别信息，出现次数或网络元素值以及成本显示为例如管理终端的列表。

4. 发明授权

US09325607B2 Transport control server, transport control system, and backup path setting method 有权
标题翻译：运输控制服务器，运输控制系统和备用路径设置方法
公开(公告)号：US09325607B2
公开(公告)日：2016-04-26
申请号：US14462613
申请日：2014-08-19
申请人： Hitachi, Ltd.
发明人： Hitoshi Yabusaki , Daisuke Matsubara
IPC分类号： H04L29/14 , H04L12/707 , H04L12/751 , H04L12/729 , H04L12/703 , H04L12/717 , H04L12/24
CPC分类号： H04L45/22 , H04L41/0654 , H04L45/02 , H04L45/125 , H04L45/28 , H04L45/42
摘要： Transport control server (TCS) in a network system including a first backup path (FBP) with predetermined first bandwidth (PFB) secured or reserved between any node pair, second backup path (SBP) with predetermined second bandwidth (PSB) secured or reserved between any node pair, the FBP and SBP sharing a link, each node forwards data according to path setting information. The TCS including: a storage section storing, for each path, an identifier for each node through which the path passes; and a control processing section performing: upon switchover of first active path to FBP, judging whether PSB of SBP can be secured or reserved by the bandwidth of the shared link through which the FBP passes, by referring to the storage section; if not, identifying nodes through which the SBP passes, by referring to the storage section; and transmitting a setting change notification to delete the SBP to the identified nodes.
摘要翻译：传输控制服务器（TCS），包括在任何节点对之间固定或保留的预定第一带宽（PFB）的第一备份路径（FBP）的第一备份路径（FBP），以及在预定的第二带宽（PSB）和第任何节点对，FBP和SBP共享链路，每个节点根据路径设置信息转发数据。 TCS包括：存储部分，用于为每个路径存储路径通过的每个节点的标识符; 以及控制处理部，其执行以下操作：在将FBP的第一活动路径切换到FBP之后，通过参照存储部判断SBP的共享链路的带宽是否能够保证或保留SBP的PSB; 如果不是，则通过参考存储部分识别SBP通过的节点; 以及发送设置改变通知以将SBP删除到所识别的节点。

5. 发明授权

US09203702B2 Path calculation method 有权
标题翻译：路径计算方法
公开(公告)号：US09203702B2
公开(公告)日：2015-12-01
申请号：US13717092
申请日：2012-12-17
申请人： HITACHI, LTD.
发明人： Hitoshi Yabusaki , Daisuke Matsubara , Kota Kawahara , Kenji Kataoka
IPC分类号： H04L12/24 , H04L12/701 , H04L12/715 , H04L12/717
CPC分类号： H04L41/0893 , H04L41/12 , H04L45/00 , H04L45/04 , H04L45/42
摘要： When a path which is a network communication path is calculated, the amount of path calculation is reduced while satisfying the requirement of the path. The network is logically divided into a plurality of calculation domains, and the divided calculation domains are hierarchically managed, and the path attribute of a path within the calculation domain of a lower hierarchical layer is held as a link attribute of an abstract link of a higher hierarchical layer.
摘要翻译：当计算作为网络通信路径的路径时，减少路径计算量，同时满足路径的要求。网络在逻辑上划分为多个计算域，划分的计算域被分层管理，并且较低层次的计算域内的路径的路径属性被保持为较高层的抽象链路的链路属性分级层。

6. 发明申请

US20150019755A1 DATA-CENTRIC COMMUNICATIONS SYSTEM, NODE, AND DATA FORWARDING METHOD 审中-公开
标题翻译：数据中心通信系统，节点和数据转发方法
公开(公告)号：US20150019755A1
公开(公告)日：2015-01-15
申请号：US14370291
申请日：2012-10-16
申请人： Hitachi, Ltd.
发明人： Daisuke Matsubara , Hitoshi Yabusaki , Kunihiko Toumura , Yukiko Takeda
IPC分类号： H04L12/715
CPC分类号： H04L45/04 , H04L45/74 , H04L61/10 , H04L61/1582 , H04L67/18 , H04L67/327
摘要： A node, when an object request message includes a location ID of a destination, sets the location ID of the destination as a search key to search the location-ID forwarding table thereof and forwards the object request message to a node that is a next hop obtained as the search result; and when the object request message does not include the location ID of the destination, sets the object ID included in the object request message as a search key to search the object-ID forwarding table thereof to forward the object request message to the node that is the next hop obtained as the search result.
摘要翻译：当对象请求消息包含目的地的位置ID时，节点将目的地的位置ID设置为搜索关键字，以搜索其位置ID转发表，并将对象请求消息转发到作为下一跳的节点作为搜索结果获得; 并且当对象请求消息不包括目的地的位置ID时，将包括在对象请求消息中的对象ID设置为搜索关键字，以搜索其对象ID转发表以将对象请求消息转发到作为搜索结果获得的下一跳。

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