公开(公告)号：US20180198708A1

公开(公告)日：2018-07-12

申请号：US15741531

申请日：2016-01-13

Applicant: Hitachi, Ltd.

Inventor： Sayuri ISHIKAWA ,  Junji KINOSHITA ,  Takahiro SAGARA ,  Kazuhiro MAEDA ,  Osamu TAKADA

IPC: H04L12/741 ,  H04L12/46 ,  H04L12/66 ,  H04L29/08 ,  H04L29/06 ,  G06F9/455

CPC classification number: H04L45/74 ,  G06F9/455 ,  G06F9/45558 ,  G06F2009/45595 ,  H04L12/46 ,  H04L12/4641 ,  H04L12/66 ,  H04L45/586 ,  H04L49/354 ,  H04L49/70 ,  H04L69/22 ,  H04L69/323 ,  H04L69/324

Abstract: The data center (DC) linking system provides a line under specified communication conditions to each tenant, wherein in each DC, a virtual network identifier (i) and/or (ii) serving as a communication type identifier which separates communications of each tenant of each of a plurality of DCs and a virtual network identifier (iii) which is provided by a carrier and serves as a line identifier which separates a plurality of communications having different communication conditions are identified and managed in association with each other; and the communications of each tenant are identified on the basis of the communication type identifier. Any one line identifier for allocating a line having a communication condition desired by a tenant is assigned to each communication identified on the basis of communication content in a transmitting side DC.

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。

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：US20160149758A1

公开(公告)日：2016-05-26

申请号：US14941771

申请日：2015-11-16

Applicant: Hitachi, Ltd.

Inventor： Junji KINOSHITA ,  Kazuhiro MAEDA ,  Osamu TAKADA

IPC: H04L12/24 ,  H04L12/46

CPC classification number: H04L12/4641 ,  H04L41/0226 ,  H04L41/0816 ,  H04L41/0896 ,  H04L41/5096

Abstract: A network system, having: a gateway apparatus set in a network; a physical computer coupled to the gateway apparatus; a virtualization unit that allocates computer resources of the physical computer to virtual machines; and a management computer that manages the physical computer, the virtualization unit, and the gateway apparatus, wherein the management computer includes: a network mapping unit that controls the gateway apparatus by configuring settings in a virtual network and another gateway apparatus and a VLAN coupled to the virtual network; and a virtualization management unit that controls the virtualization unit, wherein the virtualization unit includes: a virtual port coupled to the virtual machines; and a virtual switch that configures settings for the VLAN coupling the virtual port to the gateway apparatus, and wherein the gateway apparatus converts transmissions between a format of the VLAN and a format of the virtual network and performs transmission.

Abstract translation: 一种网络系统，具有：在网络中设置的网关装置; 耦合到所述网关装置的物理计算机; 将物理计算机的计算机资源分配给虚拟机的虚拟化单元; 以及管理物理计算机，虚拟化单元和网关装置的管理计算机，其中管理计算机包括：网络映射单元，其通过配置虚拟网络中的设置和另一网关装置以及耦合到 虚拟网络; 以及虚拟化管理单元，其控制所述虚拟化单元，其中所述虚拟化单元包括：耦合到所述虚拟机的虚拟端口; 以及虚拟交换机，其配置将所述虚拟端口耦合到所述网关装置的所述VLAN的设置，并且其中，所述网关装置将所述VLAN的格式与所述虚拟网络的格式之间的传输进行转换并执行传输。

公开(公告)号：US20200045149A1

公开(公告)日：2020-02-06

申请号：US16444760

申请日：2019-06-18

Applicant: HITACHI, LTD.

Inventor： Kazuhiro MAEDA ,  Yoji OZAWA

IPC: H04L29/08 ,  H04L12/437 ,  H04L12/46 ,  H04L29/06

Abstract: A communication disabled time during a network failure can be shortened. An SW1 capable of generating a layer 3 packet from a received layer 2 frame and transmitting the generated layer 3 packet includes: a plurality of ports 200 which is capable of transmitting and receiving data; a layer 2 ring processing unit 203 which detects a failure of a network 3 connected via the ports 200; and a VXLAN processing unit 4 which generates a plurality of layer 3 packets from one layer 2 frame received via the ports 200 when the failure of the network 3 is detected by the layer 2 ring processing unit 203, and transmits the generated plurality of layer 3 packets to a network via the plurality of ports 200.