公开(公告)号：US20200021641A1

公开(公告)日：2020-01-16

申请号：US16582803

申请日：2019-09-25

Applicant: NEC CORPORATION

Inventor： Yoichi HATANO ,  Hideyuki Shimonishi ,  Kentaro Sonoda ,  Masayuki Nakae ,  Masaya Yamagata ,  Yoichiro Morita ,  Takayuki Sasaki ,  Takeo Ohno

IPC: H04L29/08 ,  H04L29/14 ,  H04L12/24

Abstract: A visualization device is communicable with one or a plurality of host servers for hosting a virtual system, and comprises an information acquisition unit for collecting configuration information on the virtual system and the host server, a storage unit for storing the configuration information therein, and a drawing unit for expressing a virtual machine and a virtual network configuring the virtual system with different axes based on the configuration information stored in the storage unit, expressing a connection relationship between a virtual machine and a virtual network by linking the lines extending from the respective axes, and grouping virtual machines in units of server on which the virtual machines operate thereby to generate drawing information for expressing the configuration of the virtual system and the host server.

公开(公告)号：US20150236953A1

公开(公告)日：2015-08-20

申请号：US14425528

申请日：2013-09-10

Applicant: NEC CORPORATION

Inventor： Takayuki Sasaki ,  Masayuki Nakae ,  Yoichiro Morita ,  Hideyuki Shimonishi ,  Kentaro Sonoda ,  Yoichi Hatano ,  Masaya Yamagata

IPC: H04L12/741 ,  H04L12/721

CPC classification number: H04L45/74 ,  H04L41/0803 ,  H04L45/38 ,  H04L45/42 ,  H04L45/745 ,  H04L69/22

Abstract: A control device reduces its load responding to a transmission request for control information, and includes a control information management unit managing control information including a match field and causes a packet matching the match field to be processed; a transmission request storage unit storing uncontrolled transmission requests in transmission requests for control information for packets received by a switch under the control from the switch; and a request processing unit selecting a piece of control information having a looser match field from among pieces of control information managed by the control information management unit, then selects an unprocessed transmission requests for control information matching the selected piece of control information having a looser match field in unprocessed transmission requests for control information stored in the transmission request storage unit, and replies control information with the looser match field to the switch transmitting the unprocessed transmission requests for control information.

Abstract translation: 控制装置响应于控制信息的传输请求而减小其负载，并且包括控制信息管理单元，管理包括匹配字段的控制信息，并使与匹配字段匹配的分组被处理; 传输请求存储单元，在开关的控制下，由交换机接收的分组的控制信息的传输请求中存储不受控制的传输请求; 以及请求处理单元，从控制信息管理单元管理的各个控制信息中选择具有更松散的匹配字段的控制信息，然后选择与所选择的具有更松散匹配的控制信息匹配的控制信息的未处理传输请求 在未处理的发送请求中存储在发送请求存储单元中的控制信息的字段，并且将具有更松散匹配字段的控制信息应答到发送未处理的控制信息的发送请求的交换机。

公开(公告)号：US20150172176A1

公开(公告)日：2015-06-18

申请号：US14414489

申请日：2013-07-12

Applicant: NEC Corporation

Inventor： Takayuki Sasaki ,  Masayuki Nakae ,  Hideyuki Shimonishi ,  Kentaro Sonoda ,  Yoichi Hatano ,  Masaya Yamagata ,  Yoichiro Morita

IPC: H04L12/721 ,  H04L29/06 ,  H04L12/741

CPC classification number: H04L45/38 ,  H04L45/74 ,  H04L45/745 ,  H04L47/2483 ,  H04L69/22

Abstract: The present invention reduces load on a control device responding to a request to send control information that is issued from a switch. A control device includes: a control information management unit that manages control information including a match field and used for causing a packet which matches the match field to be processed; and a request processing unit that, when receiving, from a switch under control, a transmission request for control information for processing a packet which the switch receives, compares a match field of control information managed by the control information management unit with a field, which is to be compared with the match field, of a packet received by the switch, selects, from pieces of control information having match fields which match the field of the packet, a piece of control information having a looser match field, and replies to the switch with the selected piece of control information.

Abstract translation: 本发明响应于发送从交换机发出的控制信息的请求而减少控制设备的负担。 控制装置包括：控制信息管理单元，其管理包括匹配字段的控制信息，并用于使与匹配字段匹配的分组被处理; 以及请求处理单元，当从控制开关接收到用于处理交换机接收的分组的控制信息的发送请求时，将由控制信息管理单元管理的控制信息的匹配字段与字段进行比较，其中 将与由交换机接收的分组的匹配字段进行比较，从具有匹配字段的匹配字段的控制信息的片段中选择具有更松散的匹配字段的一条控制信息，并且对 用选定的控制信息切换。

公开(公告)号：US20150172175A1

公开(公告)日：2015-06-18

申请号：US14413677

申请日：2013-07-12

Applicant: NEC Corporation

Inventor： Takayuki Sasaki ,  Masayuki Nakae ,  Hideyuki Shimonishi ,  Kentaro Sonoda ,  Yoichi Hatano ,  Masaya Yamagata ,  Yoichiro Morita

IPC: H04L12/721 ,  H04L12/863 ,  H04L12/741

CPC classification number: H04L45/38 ,  H04L45/745 ,  H04L47/622 ,  H04L49/00

Abstract: To control transmission of a control information transmission request from a switch to a control device. The switch includes: a packet processing unit that processes a received packet by using control information received from a preset control device control device; a communication unit that transmits and receives the control information to and from the control device; and a control unit that controls order of control information to be transmitted and received by the communication unit.

Abstract translation: 控制从开关到控制装置的控制信息发送请求的发送。 交换机包括：分组处理单元，通过使用从预设控制设备控制设备接收的控制信息来处理接收到的分组; 通信单元，其向控制设备发送控制信息并从控制设备接收控制信息; 以及控制单元，其控制由通信单元发送和接收的控制信息的顺序。

公开(公告)号：US09503327B2

公开(公告)日：2016-11-22

申请号：US14414542

申请日：2013-07-23

Applicant: NEC CORPORATION

Inventor： Masayuki Nakae

IPC: H04L12/24 ,  H04L29/06

CPC classification number: H04L41/12 ,  H04L41/0883 ,  H04L41/0893 ,  H04L41/142 ,  H04L63/0263

Abstract: In a filtering setting support device, a logical/physical mapping section generates mapping information that represents a path on the layout of a network by a combination of start nodes and end nodes, the path being, for each flow identifier, from a transmission source node to a destination node, based on node physical layout information and access policy information. The access policy information manages flow information including a combination of transmission source node and destination node, by attaching a flow identifier. A filtering point analysis section specifies as a filtering point a node where a plurality of flows are co-present. A common formal rule generating section generates common formal rules that are to be set at the filtering point. A common formal rule output section presents common formal rules to a network administrator.

Abstract translation: 在过滤设置支持设备中，逻辑/物理映射部分通过起始节点和终端节点的组合生成表示网络布局上的路径的映射信息，对于每个流标识符，该路径是来自发送源节点 基于节点物理布局信息和访问策略信息到目的地节点。 访问策略信息通过附加流标识符来管理包括传输源节点和目的地节点的组合的流信息。 过滤点分析部分将多个流共同存在的节点指定为过滤点。 通用形式规则生成部分生成将在过滤点设置的常规形式规则。 通用的正式规则输出部分向网络管理员呈现通用的正式规则。

公开(公告)号：US20150124595A1

公开(公告)日：2015-05-07

申请号：US14397524

申请日：2013-04-26

Applicant: NEC Corporation

Inventor： Masaya Yamagata ,  Yoichiro Morita ,  Takayuki Sasaki ,  Masayuki Nakae ,  Kentaro Sonoda ,  Yoichi Hatano ,  Hideyuki Shimonishi

IPC: H04W72/04

CPC classification number: H04W72/0486 ,  H04L63/02 ,  H04L63/1458 ,  H04W24/02 ,  H04W40/12 ,  H04W72/00 ,  H04W72/02 ,  H04W72/04

Abstract: A communication system includes: a control apparatus setting control information in a forwarding node(s); a forwarding node(s); and an access control apparatus. The forwarding node(s) forwards packets by using first control information set by the control apparatus and second control information for forwarding packets that do not match a matching condition(s) in the first control information set by the control apparatus from a predetermined port of the forwarding node(s). The access control apparatus includes a determination unit determining whether to generate control information for the packets forwarded from the predetermined port of the forwarding node(s) and requesting the control apparatus to generate control information.

Abstract translation: 通信系统包括：控制装置，在转发节点中设置控制信息; 转发节点; 和访问控制装置。 转发节点通过使用由控制装置设置的第一控制信息和第二控制信息转发分组，用于将由控制装置设置的第一控制信息中的匹配条件不匹配的分组转发到预定端口 转发节点。 访问控制装置包括确定单元，确定是否为从转发节点的预定端口转发的分组生成控制信息，并请求控制装置生成控制信息。

公开(公告)号：US20140098674A1

公开(公告)日：2014-04-10

申请号：US14124220

申请日：2012-06-01

Applicant: NEC Corporation

Inventor： Kentaro Sonoda ,  Hideyuki Shimonishi ,  Masayuki Nakae ,  Masaya Yamagata ,  Yoichiro Morita

IPC: H04L12/803 ,  H04L12/727 ,  H04L12/26

CPC classification number: H04L47/125 ,  H04L41/0654 ,  H04L41/0893 ,  H04L43/0882 ,  H04L45/121 ,  H04L45/38 ,  H04L45/64 ,  H04L49/3009 ,  H04L49/50

Abstract: A communication system includes: a plurality of forwarding nodes that process a packet transmitted from a user terminal, in accordance with a processing rule that has been set, and a control device that selects a forwarding node in which a processing rule is to be set, from among the plurality of forwarding nodes, such that processing rules are set so as not to be concentrated in a specific forwarding node, based on the number of processing rules that are set in each of the forwarding nodes.

Abstract translation: 通信系统包括：多个转发节点，根据已经设置的处理规则处理从用户终端发送的分组;以及控制装置，其选择要设置处理规则的转发节点， 基于在每个转发节点中设置的处理规则的数量，使得处理规则被设置为不集中在特定的转发节点中。