Method, device and system for scheduling exchange network data packet

Abstract

The invention relates to network communication field and in particular relates to a switched network management method and a system thereof. The invention provides a switched network data packet scheduling method, a device and a system thereof. The method mainly includes the steps of receiving the output port status judged by an output port of the switched network, which is the judgment to the forwarding delay time measuring result of the packet, and managing the maximum flux of a virtual output queue VoO corresponding to the output port of the switched network. The device mainly comprises a VoO status maintenance module, a measuring packet sending module and a VoO flux limiting module. A switched network output port detection and control device comprises an output port status maintenance publicizing module, a status judge module and a request packet sending module. The system mainly comprises the switched network output port detection and control device and a switched network input port managing device.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a method, device and system for managing a switching network. Background technique [0002] At present, the packet switching network with large capacity and high throughput usually adopts an output buffer structure (caching traffic at the output port of the switching network). [0003] This is because, in many cases, the throughput of a switched fabric without output buffering is relatively low. For example, for a switching network without an output buffer, when two input ports have traffic directed to the same output port at the same time, since the switching network can only allow one of the input ports to send traffic, the other input port can only wait. One output port will be free. [0004] Theoretically, the output buffer switching network with infinite buffer space can guarantee that under any traffic, any input port can send traffic at any time. As long as the input...

AI Technical Summary

Problems solved by technology

If the switching network does not support the transmission of back pressure information (such as using LSW (Lan switch, local area network switching) as the switching network); or although it supports it, because the switching network and the VoQ scheduler are designed by different manufacturers, the message format is not compatible; then VoQ scheduler not working

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