Crossbar switch system

摘要

Each chip arranged in each crossbar switch creates and issues, if a packet is input, a log collection packet for collecting a log of the packet. Each chip collects a log related to a transfer of the input packet. Each chip embeds, in the issued log collection packet or a log collection packet transferred from a crossbar switch in a previous stage, the collected log. If a transfer destination of the packet is other than the crossbar switches, each chip stores, in a storage space, the log embedded in the log collection packet and then transfers, to the transfer destination, only an original packet in which the log is deleted. In contrast, if the transfer destination is a crossbar switch, each chip transfers the log collection packet to a crossbar switch in a next stage.

主权项

1. A crossbar switch system comprising crossbar switches, arranged in multiple stages, that form paths that connect each unit in a computer, each of the crossbar switches including
an issuing unit that creates and issues, when a packet is input, a history collection packet that is used to collect historical information on the packet; a collecting unit that collects historical information related to transferring the input packet; an embedding unit that embeds, in the history collection packet that is issued by the issuing unit or in a history collection packet that is transferred from a crossbar switch in a previous stage, the historical information collected by the collecting unit; a storage space that stores therein historical information; and a transferring unit that transfers, if a transfer destination of a packet is other than the crossbar switches, to the transfer destination, only an original packet in which the historical information is deleted after storing in the storage space the historical information that is embedded in the history collection packet and that transfers, if the transfer destination is a crossbar switch, to a crossbar switch in a next stage, the history collection packet.