Abstract: An object of the present disclosure is to provide an information system, an information terminal, an immunity certificate management system, an information processing method, and a non-transitory computer readable medium storing a program for effectively using immunity certificates. An information system according to an aspect of the present disclosure includes at least one memory configured to store instructions; and at least one processor configured to execute the instructions to: store an immunity certificate in storage, store, when the immunity certificate stored in the storage is updated, update information of the immunity certificate as a hash value related to the immunity certificate in update information storage, and output the update information stored in the update information storage.

Abstract: A blockchain system, including: computer resources that can operate as computation nodes of logically divided logical blockchains; a blockchain management apparatus that manages a plurality of logical blockchains configured by the computation nodes; a network control apparatus that controls a network in which the computer resources are arranged, among the plurality of logical blockchains, to permit communication between computation nodes which belong to the same logical blockchain and to prohibit communication between computation nodes each of which belongs to a different logical blockchain.

Abstract: A system comprises: a plurality of mining units configured to perform mining of virtual currency, and a control apparatus configured to control to activate or deactivate the plurality of mining units based on surplus power information provided from a power plant, and on consumed power information by each of the plurality of mining units.

Abstract: A virtual blockchain system comprises: a blockchain management part that manages two or more pre-identified blockchain systems; a control part that determines a combination of data to be transmitted and blockchain, wherein the data to be transmitted includes data to be recorded and redundant data for restoring the data to be recorded, such that the data to be transmitted is distributedly shared by the two or more blockchain systems under a predefined redundancy rule; a data transmission part that transmits data destined to the blockchain systems according to the combination.

Abstract: A communication control apparatus according to the present invention is connected between a core node which processes received packets in accordance with a specified flow and a control apparatus which controls the core node, controls each of the core nodes existing in an aggregated network into which one or more the core nodes are aggregated, and converts an aggregated flow specified for an aggregated network and received from the control apparatus to a real flow specified for each of the core nodes in the aggregated network based on connection relationships between the core nodes in the aggregated network, information specifying a real port which is a port through which the core node in the aggregated network is connected to a device outside the aggregated network and a real node which is the core node having the real port for each the aggregated networks.

Abstract: An information processing apparatus configuring a control apparatus controlling a network includes: a display unit displaying a first icon corresponding to a database storing control information for controlling the network and a plurality of second icons, each of which corresponds to one of a plurality of modules, each of which operates the control information based on a predetermined algorithm, on a display; and a management unit configuring the control apparatus having a function of connecting, upon connecting the first icon with any one of the second icons, a module corresponding to the second icon to the database and operating the control information responsive to a database operation command issued by the module.

Abstract: A network control device includes a network database and a switch controller. The network database stores topology information representing a network, and network flow information representing a data forwarding rule in the network. The switch controller generates the topology information by taking a plurality of switch devices included in the network as nodes and stores the generated topology information in the network database, generates switch flow information that defines an action of each of the plurality of switch devices, based on the network flow information stored in the network database, and sets the switch flow information into a corresponding one of the plurality of switch devices.

Abstract: A communication system includes a communication apparatus configured to process a packet, and a controller configured to set the communication apparatus for processing a packet. The controller includes a memory storing instructions, and a processor configured to execute program instructions to determine a forwarding path for a packet addressed to a virtual machine based on an access rule indicating connectivity between virtual machines in accordance with an arrangement of the virtual machine, and set the communication apparatus for processing the packet.

Abstract: A control apparatus includes: a database which stores control information for controlling a network; an interface unit which is connectable to a plurality of modules, each of which operates the control information based on a predetermined algorithm, and which operates the control information responsive to a database operation command issued by any one of the modules; and a control unit which controls packet processing in the network based on the control information configured by an operation executed by any one of the modules. The interface unit updates the control information responsive to a database operation command corresponding to information input/output or information deletion with respect to the control information.

Abstract: A communication system, includes: a node that requests a processing rule for processing a packet; and a control apparatus that notifies the node of the processing rule in response to the request. The control apparatus, upon being notified of change of a connection relationship between a communication apparatus to which a packet is addressed and the node, determines a forwarding path for a packet addressed to the communication apparatus and notifies the node of a processing rule for realizing the forwarding path.

Abstract: A plurality of forwarding nodes includes: a topology holding unit that holds as first topology information connection relationship between an own node and at least part of the group of nodes; a topology notification unit that notifies a node(s) adjacent to the own node among the group of nodes of the first topology information; and an in-band communication unit that notifies a control apparatus of the first topology information. The control apparatus includes: a topology configuration unit that generates second topology information by combining a plurality of pieces of the first topology information notified by the plurality of forwarding nodes; and an in-band control unit that derives a path from the control apparatus to the plurality of forwarding nodes based on the second topology information and establishes a control channel for controlling the plurality of forwarding nodes along the derived path.

Abstract: A control apparatus includes: a database which stores control information for controlling a network; an interface unit which is connectable to a plurality of modules, each of which operates the control information based on a predetermined algorithm, and which operates the control information responsive to a database operation command issued by any one of the modules; and a control unit which controls packet processing in the network based on the control information configured by an operation executed by any one of the modules.

Abstract: A communication control apparatus according to the present invention is connected between a core node which processes received packets in accordance with a specified flow and a control apparatus which controls the core node, controls each of the core nodes existing in an aggregated network into which one or more the core nodes are aggregated, and converts an aggregated flow specified for an aggregated network and received from the control apparatus to a real flow specified for each of the core nodes in the aggregated network based on connection relationships between the core nodes in the aggregated network, information specifying a real port which is a port through which the core node in the aggregated network is connected to a device outside the aggregated network and a real node which is the core node having the real port for each the aggregated networks.

Abstract: A communications system includes: a first node device provided in a first network; a first controller controlling the first node device; a second node device provided in a second network and connected to the first node device; and a second controller controlling the second node device. The first controller sets the first node device with a processing rule according to which packets transferred between the first and second controllers are processed. The second controller sets the second node device with a processing rule according to which the packets are processed. The first and second controllers exchanges the packets each other through at least the first and second node devices.

Abstract: The present invention aims at providing bronze alloy for a musical instrument that has high strength and processability and is provided with excellent acoustic characteristics by addition of Zr. The bronze alloy for a musical instrument according to the present invention has a component composition that contains 18% by mass to 26% by mass of Sn, 0.0005% by mass to 0.25% by mass of Zr, and a remainder consisting of Cu and inevitable impurities. Bronze alloy for a musical instrument having high strength and processability is obtained by setting the component composition as described above. Furthermore, from the frequency analysis result shown in FIG. 6A, in Example 13, higher harmonic components increase and low frequency waves also increase as compared with Comparative Example 2, and it is known that the enhancement of sound qualities such as complexity of beat sounds, profound feeling, and audibility is obtained.

Abstract: A network management service system includes a policy management apparatus that receives updating of a communication policy from an user and manages the communication policy for each user; a control apparatus that generates a packet handling operation of a packet associated with the communication policy of the user, in response to a request from the user, and sets the generated packet handling operation in a forwarding node(s); and the forwarding node(s) that processes the packet using the packet handling operation generated by the control apparatus.

Abstract: A communications system includes: a first node device provided in a first network; a first controller controlling the first node device; a second node device provided in a second network and connected to the first node device; and a second controller controlling the second node device. The first controller sets the first node device with a processing rule according to which packets transferred between the first and second controllers are processed. The second controller sets the second node device with a processing rule according to which the packets are processed. The first and second controllers exchanges the packets each other through at least the first and second node devices.

Abstract: A network control device includes a network database and a switch controller. The network database stores topology information representing a network, and network flow information representing a data forwarding rule in the network. The switch controller generates the topology information by taking a plurality of switch devices included in the network as nodes and stores the generated topology information in the network database, generates switch flow information that defines an action of each of the plurality of switch devices, based on the network flow information stored in the network database, and sets the switch flow information into a corresponding one of the plurality of switch devices.

Abstract: The present invention aims at providing bronze alloy for a musical instrument that has high strength and processability and is provided with excellent acoustic characteristics by addition of Zr. The bronze alloy for a musical instrument according to the present invention has a component composition that contains 18% by mass to 26% by mass of Sn, 0.0005% by mass to 0.25% by mass of Zr, and a remainder consisting of Cu and inevitable impurities. Bronze alloy for a musical instrument having high strength and processability is obtained by setting the component composition as described above. Furthermore, from the frequency analysis result shown in FIG. 6A, in Example 13, higher harmonic components increase and low frequency waves also increase as compared with Comparative Example 2, and it is known that the enhancement of sound qualities such as complexity of beat sounds, profound feeling, and audibility is obtained.

Abstract: A communication system includes a plurality of forwarding nodes that process a received packet in accordance with a processing rule that determines a matching rule matching a packet and a process to be applied to a packet conforming with the matching rule; and a control apparatus that controls the forwarding nodes using control information. The control apparatus includes a tunnel establishing unit that determines forwarding path(s) for the respective control information for each of the forwarding nodes, and transmits to the forwarding nodes a tunnel establishing message including a processing rule for forwarding the control information to be set in the forwarding nodes in each of the forwarding paths. The respective forwarding nodes give and receive control information with regard to the control apparatus, by holding processing rules for forwarding the control information included in the tunnel establishing message.