Abstract: A conversion device (10) analyzes an input packet and acquires header information included in the packet. Furthermore, the conversion device (10) classifies packets into one of a plurality of groups on the basis of the acquired header information and set grouping conditions. Subsequently, the conversion device (10) generates packets for analysis on the basis of the processing corresponding to the classified groups.

Abstract: A conversion device analyzes information of an input packet using hardware and determines whether to perform predetermined previous stage processing using the hardware. Furthermore, when it is determined to perform the previous stage processing, the conversion device uses the hardware to provide metadata including identification information indicating a group of packets to the packets on the basis of the fixed-length header information of the packets. In addition, the conversion device uses software to generate analysis packets corresponding to the group of packets using the provided metadata.

Abstract: An extraction unit extracts predetermined information from an outer header and an inner header of a tunneled packet passing through a network device in which congestion has occurred. An evaluation unit evaluates an order in which fine grain flows in a tunnel subdivided with reference to the extracted predetermined information are subject to TE, based on attribute information of the fine grain flows.

Abstract: A design apparatus optimizes, with a first granularity (for example, a real number solution), a traffic volume allocated to each of links between adjacent nodes included in a network. In addition, the design apparatus calculates an approximation solution obtained by approximating, with a second granularity (for example, an integer solution), the traffic volume having been optimized with the first granularity. Furthermore, the design apparatus maps logical paths to each of routes constituted by the links in accordance with the approximated traffic volume.

Abstract: A conversion device (10) includes a separation unit (11) that separates an inputted encapsulated packet into flow information and sampled headers including outer headers and inner headers, a decapsulation unit (12) that separates the outer headers from the sampled headers, and a conversion unit (13) that obtains statistics about the inner headers on the basis of the sampled headers separated from the outer headers, generates an xFlow packet including at least statistical information indicating the statistics about the inner headers, and outputs the generated xFlow packet to an external device.

Abstract: When receiving packets of a flow from a network device (1), a transmission control device (10) determines, according to processing abilities of flow collectors (20), rates in transmitting information concerning the flow to the collectors 20. The transmission control device (10) selects, based on header information of the received packets, the flow collector (20) to be a transmission destination of the information concerning the flow of the packets. The transmission control device (10) transmits the information concerning the flow at the rate determined for each of the flow collectors (20).

Abstract: The sorting unit (10) has a sorting function unit (13) that acquires a frame and a sorting key, embeds the sorting key in a header of the frame, and sorts the frame into a processing thread based on the value of the sorting key in the header.