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    • 1. 发明授权
    • Communication system, controller, node controlling method and program
    • 通信系统,控制器,节点控制方法和程序
    • US09197555B2
    • 2015-11-24
    • US13817979
    • 2011-08-22
    • Hideyuki ShimonishiTakeharu YasudaYuki Tanaka
    • Hideyuki ShimonishiTakeharu YasudaYuki Tanaka
    • H04L12/721H04L12/741H04L12/46H04L12/64
    • H04L45/72H04L12/6418H04L45/08H04L45/38Y02D30/30
    • A configuration of a communication system that is able to effect packet forwarding in accordance with an intended forwarding path even in an environment where a node represented by a Layer-2 switch (L2SW) and a node represented by an OpenFlow switch exist together, is provided. The communication system includes a first node, such as a Layer-2 switch, a plurality of second nodes, equivalent to the OpenFlow switches, and a controller. The controller causes the first node to receive a destination learning packet from one of the second nodes lying on the downstream side of the first node on a preset packet forwarding path. The destination learning packet has a node lying on the downstream side of the first node as a transmission source, so that the controller causes the first node to perform a packet forwarding operation in accordance with the packet forwarding path.
    • 提供了即使在由二层交换机(L2SW)表示的节点和由OpenFlow交换机表示的节点存在的环境中也能够根据期望的转发路径来实现分组转发的通信系统的配置, 。 通信系统包括诸如第二层交换机的第一节点,等同于OpenFlow交换机的多个第二节点以及控制器。 所述控制器使得所述第一节点从位于所述第一节点的下游侧的第二节点之一接收预设分组转发路径上的目的地学习分组。 目的地学习分组具有作为发送源的位于第一节点的下游侧的节点,使得控制器使得第一节点根据分组转发路径执行分组转发操作。
    • 3. 发明申请
    • COMMUNICATION SYSTEM, CONTROL APPARATUS, PATH CONTROLLING METHOD AND PROGRAM
    • 通信系统,控制装置,路径控制方法和程序
    • US20130223452A1
    • 2013-08-29
    • US13882973
    • 2011-11-02
    • Hideyuki ShimonishiTakeharu YasudaYuki Tanaka
    • Hideyuki ShimonishiTakeharu YasudaYuki Tanaka
    • H04L12/56
    • H04L45/38H04L45/66H04L49/253H04L49/3009
    • A communication system includes a plurality of first nodes that, in accordance with processing rules (packet handling operations) prescribing processing contents for a packet belonging to a pre-set flow, processes a packet received, which matches to the processing rules, and a second node that forwards the received packet via its ports without referencing the processing rules. The communication system also includes a control apparatus that sets, for the first nodes situated on a forwarding path for the packet belonging to the pre-set flow, processing rules to forward the packet belonging to the pre-set flow to each next hop. The control apparatus also sets, for the first node not situated on the forwarding path, processing rules to instruct dropping the packet that is forwarded from the second node and that is deviated from the forwarding path.
    • 通信系统包括:多个第一节点,根据规定处理属于预置流量的分组的处理内容的处理规则(分组处理操作)处理与处理规则相匹配的接收到的分组,以及第二节点 节点,通过其端口转发接收的分组,而不参考处理规则。 通信系统还包括控制装置,对于属于预置流的分组的转发路径上的第一节点,将属于预置流的分组转发到每个下一跳的处理规则。 控制装置还对于不在转发路径上的第一节点设置处理规则,以指示丢弃从第二节点转发并且偏离转发路径的分组。
    • 5. 发明授权
    • Communication system, control apparatus, path controlling method and program
    • 通信系统,控制装置,路径控制方法和程序
    • US09237094B2
    • 2016-01-12
    • US13882973
    • 2011-11-02
    • Hideyuki ShimonishiTakeharu YasudaYuki Tanaka
    • Hideyuki ShimonishiTakeharu YasudaYuki Tanaka
    • H04L12/28H04L12/721H04L12/935H04L12/937
    • H04L45/38H04L45/66H04L49/253H04L49/3009
    • A communication system includes a plurality of first nodes that, in accordance with processing rules (packet handling operations) prescribing processing contents for a packet belonging to a pre-set flow, processes a packet received, which matches to the processing rules, and a second node that forwards the received packet via its ports without referencing the processing rules. The communication system also includes a control apparatus that sets, for the first nodes situated on a forwarding path for the packet belonging to the pre-set flow, processing rules to forward the packet belonging to the pre-set flow to each next hop. The control apparatus also sets, for the first node not situated on the forwarding path, processing rules to instruct dropping the packet that is forwarded from the second node and that is deviated from the forwarding path.
    • 通信系统包括:多个第一节点,根据规定处理属于预置流量的分组的处理内容的处理规则(分组处理操作)处理与处理规则相匹配的接收到的分组,以及第二节点 节点,通过其端口转发接收的分组,而不参考处理规则。 通信系统还包括控制装置,对于属于预置流的分组的转发路径上的第一节点,将属于预置流的分组转发到每个下一跳的处理规则。 控制装置还对于不在转发路径上的第一节点设置处理规则,以指示丢弃从第二节点转发并且偏离转发路径的分组。
    • 6. 发明申请
    • COMMUNICATION SYSTEM, CONTROLLER, NODE CONTROLLING METHOD AND PROGRAM
    • 通信系统,控制器,节点控制方法和程序
    • US20130148666A1
    • 2013-06-13
    • US13817979
    • 2011-08-22
    • Hideyuki ShimonishiTakeharu YasudaYuki Tanaka
    • Hideyuki ShimonishiTakeharu YasudaYuki Tanaka
    • H04L12/56
    • H04L45/72H04L12/6418H04L45/08H04L45/38Y02D30/30
    • A configuration of a communication system that is able to effect packet forwarding in accordance with an intended forwarding path even in an environment where a node represented by a Layer-2 switch (L2SW) and a node represented by an OpenFlow switch exist together, is provided. The communication system includes a first node, such as a Layer-2 switch, a plurality of second nodes, equivalent to the OpenFlow switches, and a controller. The controller causes the first node to receive a destination learning packet from one of the second nodes lying on the downstream side of the first node on a preset packet forwarding path. The destination learning packet has a node lying on the downstream side of the first node as a transmission source, so that the controller causes the first node to perform a packet forwarding operation in accordance with the packet forwarding path.
    • 提供了即使在由二层交换机(L2SW)表示的节点和由OpenFlow交换机表示的节点存在的环境中也能够根据期望的转发路径来实现分组转发的通信系统的配置, 。 通信系统包括诸如第二层交换机的第一节点,等同于OpenFlow交换机的多个第二节点以及控制器。 所述控制器使得所述第一节点从位于所述第一节点的下游侧的第二节点之一接收预设分组转发路径上的目的地学习分组。 目的地学习分组具有作为发送源的位于第一节点的下游侧的节点,使得控制器使得第一节点根据分组转发路径执行分组转发操作。
    • 9. 发明申请
    • MASS FLOW CONTROLLER
    • 质量流量控制器
    • US20120116596A1
    • 2012-05-10
    • US13290984
    • 2011-11-07
    • Yutaka YonedaYuki Tanaka
    • Yutaka YonedaYuki Tanaka
    • G05D7/00
    • G05D7/0635
    • The present invention comprises a flow rate sensor part and control valve; a calculation part that performs a proportional calculation on a deviation between a flow rate measurement value and setting value to calculate a feedback control value for the flow rate control valve; and an opening level control signal output part that generates an opening level control signal on the basis of the feedback control value to output the opening level control signal to the flow rate control valve. A gain value to be multiplied by the deviation is calculated by using a function that, in a predetermined period after the time point when the flow rate setting value decreases by a predetermined amount or more, calculates a larger value as a calculation value obtained by using a variation between the flow rate setting value before the decrease and a flow rate setting value after the decrease decreases.
    • 本发明包括流量传感器部件和控制阀; 计算部,其对流量测量值和设定值之间的偏差进行比例计算,以计算流量控制阀的反馈控制值; 以及开度电平控制信号输出部,其基于反馈控制值生成开度水平控制信号,将开度水平控制信号输出到流量控制阀。 通过使用在流量设定值减少预定量以上的时间点之后的预定时间内计算作为通过使用得到的计算值的较大值的函数来计算乘以偏差的增益值 降低前的流量设定值与减少后的流量设定值之间的变化减小。