Patent application number | Description | Published |
20080215715 | Recording medium storing information distribution program, information distribution apparatus, and information distribution method - Information may be distributed to a plurality of communication devices connected to a network by creating a distribution route including a plurality of levels by assigning a plurality of following level stations (0-level to n-level stations) to the distribution route, distributing information from one of the communication devices as an m-level station in a lower level to one of the communication devices as an (m+1)-level station in a level lower than the lower level in which the m-level station is present using the distribution route, monitoring a distribution status of the information distributed, and changing the distribution route based on the distribution status. | 09-04-2008 |
20090016360 | STORAGE MEDIA STORING A NETWORK RELAY CONTROL PROGRAM, APPARATUS, AND METHOD - A judging unit in a network relay apparatus for communicating between first and second networks determines whether a first address in the first network and a second address in the second network overlap. If so, a determining unit finds a third address range and a fourth address range to avoid the overlap. The third address range is a private address range used by a communication device within the first network to identify a communication device within the second network, and the fourth address range is a private address range used by a communication device within the second network to identify a communication device within the first network. | 01-15-2009 |
20100088416 | NETWORK CONNECTION CONTROL TECHNIQUE, NETWORK CONNECTION TECHNIQUE AND AUTHENTICATION APPARATUS - A network connection method includes: generating the same address as an address that is other than address currently used by the user terminal and is generated by the authentication apparatus, as a reconnection address, and storing the reconnection address that is valid for a predetermined valid period into a reconnection address storage device; and when a present time is within the predetermined valid period after the connection with the first network is disconnected, reconnecting to the first network by using the reconnection address stored in the reconnection address storage device without the authentication by the authentication apparatus. | 04-08-2010 |
20100142545 | NETWORK APPARATUS, EDGE ROUTER, AND PACKET COMMUNICATION SYSTEM - A network apparatus includes: a slot table for storing a record including an identifier of a time slot witch is assigned to packet transmission from a particular transmission source to a particular transmission destination, and respective identifiers of an input interface and an output interface which are used for the packet transmission; and means for, upon receiving a first control packet which includes an identifier of a particular time slot and indicates a start of the particular time slot, specifying the input interface and the output interface corresponding to the particular time slot from the slot table, and for sending out one or more packets from the specified input interface to the specified output interface during a period until receiving a second control packet which includes the identifier of the particular time slot and indicates an end of the particular time slot. | 06-10-2010 |
20110103398 | TIME SLOT ALLOCATION METHOD AND APPARATUS - This method includes: judging, for each certain combination of the source and destination nodes, for which the number of time slots to be allocated is equal to or greater than 1, whether or not certain time slots exist that are capable of forming a route from the source node to the destination node by unused links; for each certain combination judged, at the judging, that the certain time slots exist that are capable of forming the route by the unused links, identifying, for each certain time slot, a shortest route among routes formed by the unused links, calculating an evaluation value from the number of hops in the shorted route, an allocated priority associated with a corresponding certain combination and the number of used links in the corresponding certain time slot; and identifying a maximum evaluation value among the evaluation values. | 05-05-2011 |
20110205890 | COMMUNICATION MANAGEMENT APPARATUS, COMMUNICATION MANAGEMENT METHOD, AND COMPUTER PRODUCT - An allocation unit allocates a path formed by combining a link between nodes to any one of a plurality of time slots. A slot rearrangement unit rearranges the plurality of time slots so that time slots to which a path is allocated by the allocation unit are consecutively arranged. A path rearrangement unit converts a path allocated to any one time slot rearranged by the slot rearrangement unit to a path formed by combining a link included in a path allocated to a time slot different from the time slot. A transmission unit transmits information of the path obtained by conversion performed by the path rearrangement unit. | 08-25-2011 |
20110206034 | ROUTE ALLOCATION APPARATUS AND METHOD - A route allocation apparatus includes a route calculation section and a route allocation controller. The route calculation section calculates a route between an outgoing edge node and incoming edge node within a network. The route allocation controller allocates the route to communication slots. Further, the route allocation controller calculates an expected value as an index of the number of the routes allocatable to the communication slots, selects a route allocation in which the expected value is a maximum, obtains the number of the routes allocatable to the selected communication slots after the route allocation, and updates the expected value. | 08-25-2011 |
20110206062 | COMMUNICATION DEVICE, COMMUNICATION SYSTEM, AND ROUTE ALLOCATION METHOD - A route allocation method including: calculating a route between a sending node and a receiving node in a network; and allocating the route to a communication slot, wherein the allocating selects route allocation for the communication slot based on a number of allocatable routes that are other routes not including a link the transfer direction of which is the same as that of a route, the link being located in the route embedded into the communication slot. | 08-25-2011 |
20110222534 | NETWORK APPARATUS, EDGE ROUTER, AND PACKET COMMUNICATION SYSTEM - A network apparatus includes: a slot table storing a record including an identifier of a time slot which is assigned to packet transmission from a specific transmission source to a specific transmission destination, and identifiers of an input interface and output interface which are used for the packet transmission; and a unit, upon receiving a first control packet which includes an identifier of the specific time slot and represents a start of the specific time slot, to identify the input interface and output interface corresponding to the specific time slot from the slot table, and to send packets from the identified input interface to the identified output interface during a period until receiving a second control packet which includes the identifier of the specific time slot and represents an end of the specific time slot. | 09-15-2011 |
20120039339 | COMMUNICATION APPARATUS, RELAY APPARATUS, AND COMMUNICATION CONTROL METHOD - A relay apparatus including: a plurality of communication interfaces; and a processor configured to detect a collision, at which a second communication interface receives a second control packet group from a second communication apparatus while a first communication interface receives one of a first data packet group and a first control packet group from a first communication apparatus, the second control packet group being used to reserve a transmission of a second data packet group during a constant period later than a present frame by one frame out of a frame string representing an operation period of the second communication apparatus, and a communication interface of the second control packet group matching a communication interface of one of the first data packet group and the first control packet group; and transmit a collision occurrence notification to the second communication apparatus. | 02-16-2012 |
20120163398 | COMMUNICATION APPARATUS, RELAY APPARATUS, AND NETWORK SYSTEM - A relay apparatus of performing packet communication of time division, including: a receiver configured to receive a first data packet to be transmitted pursuant to a reservation of a time slot, a second data packet, and a control packet including first data representing which of the first data packet and the second data packet is to be transmitted in the same time slot; a processor configured to, in a case where the control packet including first data representing that the second data packet is to be transmitted in the same time slot, store in a data storage the second data packet; and a transmitter configured to transmit the second data packet stored in the data storage in a time slot not including other data packet than the second data packet. | 06-28-2012 |
20130103914 | APPARATUS, METHOD, AND STORAGE MEDIUM FOR SAMPLING DATA - A data sampling apparatus includes a plurality of first-in first-out memories and a processor that executes a procedure. The procedure includes classifying received data signals in accordance with types of the data signals; storing the classified data signals in the corresponding memories; calculating a sampling rate based on a ratio between a total traffic volume of the received data signals per given time and a traffic volume of data signals stored in each of the memories per given time; and sampling the data signals stored in each of the memories based on the corresponding calculated sampling rate. | 04-25-2013 |
20130104128 | APPARATUS, METHOD OF MANAGING A PLURALITY OF VIRTUAL MACHINES, AND RECORDING MEDIUM - An apparatus includes a memory and a processor that executes a program including a procedure on the memory. The procedure comprises receiving information in which a communication amount corresponding to an amount of transmitted and received data is associated with a transmission source and a destination of the data with respect to each of virtual machines operating in a system including servers, calculating a correlation degree between the transmission source and the destination based on the information, calculating an arrangement candidate of the virtual machine with respect to the server based on the correlation degree, calculating a load on the network in the system imparted by the transmission and reception of the data attributable to a movement of the virtual machine to match the arrangement candidate; and controlling the movement of the virtual machine in accordance with the arrangement candidate based on the load and a threshold. | 04-25-2013 |
20130258843 | NETWORK SYSTEM AND APPARATIS - A network system includes a plurality of apparatuses which transmits traffic data included in a plurality of communications by switching a destination for each communication, and a management device coupled to the plurality of apparatuses, wherein each of the plurality of apparatuses includes, a processor which executes a first process including, selecting a communication from a plurality of communications, acquiring traffic data included in a selected communication selected in the selecting, and transmitting a acquired traffic data acquired in the acquiring to the management device, and wherein the management device includes a processor which executes a second process including receiving the acquired traffic data from each of the plurality of apparatuses, and performing an analysis of the selected communication based on the acquired traffic data. | 10-03-2013 |
20130262647 | NETWORK SYSTEM AND COMMUNICATION CONTROL METHOD - A communication control method for a network system includes establishing a first communication path from a first virtual machine to be executed at a first information processing device to a second virtual machine to be executed at a second information processing device, using a plurality of switch devices, and establishing a second communication path from the first information processing device to a third information processing device using the plurality of switch devices, which differs from the first communication path, before moving the second virtual machine from the second information processing device to the third information processing device. | 10-03-2013 |
20130343396 | INFORMATION PROCESSING SYSTEM, RELAY DEVICE, INFORMATION PROCESSING DEVICE, AND INFORMATION PROCESSING METHOD - An information processing system includes a plurality of computers, a plurality of relay devices having a memory which stores a first parameter combination for selecting a first transfer path from a plurality of paths for coupling to each of the plurality of computers, and a management computer which stores, in the memory, a second parameter combination for selecting a second transfer path from the plurality of paths when a traffic of any one of couplings for coupling each of the plurality of relay devices exceeds a given amount, wherein the plurality of relay devices set a transfer destination of received data by selecting information corresponding to computer combination information included in the received data from any one of the first parameter combination and the second parameter combination. | 12-26-2013 |
20140029437 | INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING METHOD, AND RELAY APPARATUS - An information processing system includes a relay apparatus configured to select a first route by an operation on the basis of a first address in a packet, and a computer configured to change, when congestion occurs in the first route, an address in the packet from the first address to a second address which causes the relay apparatus to select a second route having a destination the same as that of the first route by the operation. | 01-30-2014 |
20140082616 | INFORMATION PROCESSING METHOD, INFORMATION PROCESSING APPARATUS, RECORDING MEDIUM, AND SYSTEM - An information processing method including calculating, for migration of a first virtual machine between a migration-source computer coupled to a network and a migration-destination computer coupled to the network, a difference between a first resource allocated to the first virtual machine in the migration-source computer and a second resource to be allocated to a second virtual machine to be executed based on the virtual machine in the migration-destination computer, estimating a bandwidth for the network to be used by the second virtual machine based on the difference and a bandwidth for the network used by the first virtual machine in the migration-source computer. | 03-20-2014 |
20140115183 | INFORMATION PROCESSING METHOD, RECORDING MEDIUM, AND INFORMATION PROCESSING APPARATUS - An information processing method includes determining the number of packets to be transferred to a communication circuit for each of a plurality of communications so that the number of packets of each of the plurality of communications is equal to or greater than the number of packets to be used for communication analysis, in accordance with the communication amount of each of the plurality of communications and an upper limit of the transfer amount of packets to be transferred to the communication circuit. | 04-24-2014 |
20140286338 | SYSTEM, RELAY DEVICE, METHOD, AND MEDIUM - A system includes a first device which outputs a packet including an address identifying a second device and identifier of one of a plurality of communication circuits that output packets to a network, and a relay device which outputs the packet to the second device instead of to the one of the plurality of communication circuits corresponding to the identifier, when it is determined based on the address that the second device is coupled to the relay device. | 09-25-2014 |