摘要:
A network monitoring device that monitors a network state, includes a receiving unit that receives a packet passing through the network; a processing unit that performs analysis of the network state with respect to the packet received; and a determining unit that determines whether a failure has occurred in the network, based on the result obtained by the processing unit.
摘要:
A network monitoring device that monitors a network state, includes a receiving unit that receives a packet passing through the network; a processing unit that performs analysis of the network state with respect to the packet received; and a determining unit that determines whether a failure has occurred in the network, based on the result obtained by the processing unit.
摘要:
A test packet transmitting apparatus transmits respective test packets including different pieces of identification information to a repeating installation. The repeating installation makes a predetermined number of copies of each test packet received from the test packet transmitting apparatus to be transmitted to a test packet receiving apparatus, and determines the predetermined number of copies as a population to measure a communication quality. The test packet receiving device counts the received test packets according to each type of identification information.
摘要:
There is provided an information processing apparatus in which a great number of users can use thin clients, and in which various services such as simultaneous picture distribution are realized in an integrated manner, an information processing system, and a controlling method of the information processing apparatus. The apparatus capable of executing plural OSs includes image transmitting devices having: a GPU for receiving a drawing instruction signal of a screen output from the OS and generating an image signal of a display screen; and a communicator for transmitting the image signal of the display screen to a terminal that operates as a thin client. The devices compressively code the image signal to a digital motion picture by a coding unit as necessary. Then, the devices transmit the coded signal from the communicator. The apparatus dynamically assigns the devices to the OSs corresponding to the respective terminals via VMM.
摘要:
An intensive management apparatus for managing a time-sharing multiplexing network, comprises: a path-information-creating unit for creating path information including a group identifier, termination information of terminating connection points, a path management number assigned to a path connecting the terminating connection points at which time slots in a communication apparatus are allocated and an allocated-time-slot number; a time-slot-allocating unit for creating time-slot-allocation information describing allocation of the time slots to a path identified by the path management number included in the time-slot-allocation information for each of the terminating connection points; a path-information-checking unit for forming a judgment on validity of each of a plurality of paths identified by the same group identifier assigned to a path-information group comprising pieces of path information describing the paths on the basis of the path information; and a result display unit for displaying results of the judgment on validity of the paths.
摘要:
A multicast network system is provided with a multicast network unit that delivers data between independent multicast network domains. The multicast network unit includes an extraction part for extracting a multicast delivery destination address from received data, a holder part for holding conversion data where the multicast delivery destination address corresponds to a delivery source address, and a judgment part for judging whether the multicast delivery destination address is held and outputting the result of a judgment. The multicast network unit also includes a filtering part which, when the result of the judgment is holding, converts the multicast delivery source address to an arbitrary delivery destination address and, when it is non-holding, discards the received data. The multicast network unit further includes a transmitter part for transmitting data containing the converted multicast address to the domain.
摘要:
A form image managing system includes a partitioned master image storing unit which stores partitioned master images obtained by partitioning a master image, a form image obtaining unit which obtains an image of a form, a searching unit which searches the partitioned master image storing unit for a partitioned master image having a high correlation with each of a plurality of partial images obtained by partitioning the image of the form, a difference data generating unit which generates difference data between the partial image and corresponding partitioned master image having the high correlation with the partial image, and a form image data storing unit which stores, as form image data that represents the image of the form, identification information for identifying the corresponding partitioned master image and the difference data by making the identification information and the difference data correspond to the partial image.
摘要:
A transmitter equipped with a plurality of transmission path ports and a relay section. The relay section has a routing table and a router. In the routing table, information about the relay of the received packet to one of the transmission path ports connected to a relay transmission path is stored, correlated with both a port identifier of each the transmission path port and the source address of the transmitter that transmitted the packet. The router extracts the port identifier of the transmission path port that received the packet and the source address contained in the received packet, and routes the received packet to the transmission path port connected to the relay transmission path by referring to the routing table for the extracted port identifier and the extracted source address.
摘要:
A test packet transmitting apparatus transmits respective test packets including different pieces of identification information to a repeating installation. The repeating installation makes a predetermined number of copies of each test packet received from the test packet transmitting apparatus to be transmitted to a test packet receiving apparatus, and determines the predetermined number of copies as a population to measure a communication quality. The test packet receiving device counts the received test packets according to each type of identification information.
摘要:
Disclosed is a network system capable of transferring data at a high speed between multicast-supported networks via a L2 network. The network system includes a multicast-unsupported L2 network, two multicast-supported network, two gateway devices for connecting one of the multicast-supported networks to the multicast-unsupported L2 network, and each of witch is capble of assembling, when a multicast data packet is transmitted from the side of the multicast-supported network, a L2-network packet in which a destination MAC address of the multicast data packet is translated into a MAC address of the other gateway device, and transmitting the L2-network packet over the L2 network.