公开(公告)号：US20180248715A1

公开(公告)日：2018-08-30

申请号：US15755312

申请日：2016-03-10

Applicant: Hitachi, Ltd.

Inventor： Ken AKUNE ,  Kazuhiro MAEDA ,  Junji KINOSHITA ,  Osamu TAKADA

IPC: H04L12/66 ,  H04L29/12 ,  H04L12/931 ,  H04L29/08 ,  G06F9/455

CPC classification number: H04L12/66 ,  G06F9/45558 ,  G06F2009/45595 ,  H04L49/70 ,  H04L61/2061 ,  H04L61/2514 ,  H04L61/2521 ,  H04L61/2557 ,  H04L61/256 ,  H04L67/10 ,  H04L67/1002 ,  H04L67/1036

Abstract: The number of IP pools is increased independently of the number of network interfaces coupled to an external network. In response to a registration request requesting registration of an IP address pool, which is a part of an IP address space, in a first network, a control apparatus is configured to cause a processor to execute: generating a logical interface configured to operate as a logical network interface; logically coupling the logical interface to a logical switch; generating a NAT module logically coupled to a second network interface and configured to mutually convert an IP address in the IP address pool and an IP address in a second network; and logically coupling the NAT module to the logical interface.

公开(公告)号：US20180203757A1

公开(公告)日：2018-07-19

申请号：US15864829

申请日：2018-01-08

Applicant: HITACHI, LTD.

Inventor： Ken AKUNE ,  Yoji OZAWA ,  Junji KINOSHITA

IPC: G06F11/07 ,  G06F11/34

Abstract: A log message grouping apparatus calculates a coincidence degree evaluation value E1 representing the degree of coincidence between minority words, which are relatively low occurrence frequency words, out of the words that form a log message and minority words in another log message. The log message grouping apparatus further calculates an occurrence degree evaluation value E2 representing the degree of occurrence of the combination of a classification value of a log message and the classification value of a past log message on the basis of the occurrence frequency of the combination of the classification values and calculates an association degree evaluation value E3 representing the degree of association between the log message and the past log message on the basis of the coincidence degree evaluation value E1 and the occurrence degree evaluation value E2.

公开(公告)号：US20160366013A1

公开(公告)日：2016-12-15

申请号：US15080699

申请日：2016-03-25

Applicant: HITACHI, LTD.

Inventor： Ken AKUNE ,  Hitoshi YABUSAKI ,  Kazuhiro MAEDA ,  Junji KINOSHITA

IPC: H04L12/24 ,  H04L12/66 ,  H04L12/46 ,  H04L12/26

CPC classification number: H04L12/4641 ,  H04L12/6418 ,  H04L12/66 ,  H04L41/0813 ,  H04L43/08 ,  H04L43/0852 ,  H04L43/0876

Abstract: Provided is a network system including a management device and one or more external networks which connect each of any two of computer systems, wherein the management device acquires communication performance of each of the external networks among a bandwidth, a delay, and a maximum transferable packet, receives a calculation request for the communication performance of a virtual network, specifies a configuration of the requested virtual network, calculates the communication packet of the specified virtual network based on the acquired communication performance of the external network, and provides information of the calculated communication performance of the virtual network to a manager.

Abstract translation: 提供一种网络系统，包括管理装置和连接计算机系统中的每一个的一个或多个外部网络，其中管理装置在带宽，延迟和最大可转移分组中获取每个外部网络的通信性能 接收对虚拟网络的通信性能的计算请求，指定所请求的虚拟网络的配置，基于所获取的外部网络的通信性能来计算指定的虚拟网络的通信分组，并且提供所计算的通信的信息 虚拟网络的性能给管理者。