Unicast and multicast integrated scheduling device, exchange system and method

A scheduling device and unicast technology, applied in the field of communication, can solve the problems of low throughput rate, effectively implement a single-multicast integrated scheduling solution, low system throughput rate, etc., and achieve the effect of improving throughput rate

Inactive Publication Date: 2010-12-01
GLOBAL INNOVATION AGGREGATORS LLC
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Problems solved by technology

Methods 1) and 2) cannot guarantee the delay and jitter of multicast and unicast cells, and method 3) has fixed scheduling time slots, resulting in low throughput
[0005] Judging from published papers and patents, there is no good solution for how to simply and effectively implement unicast and multicast integrated scheduling in the buffer crossbar switching structure, which leads to problems such as low system throughput

Method used

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  • Unicast and multicast integrated scheduling device, exchange system and method
  • Unicast and multicast integrated scheduling device, exchange system and method
  • Unicast and multicast integrated scheduling device, exchange system and method

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Embodiment Construction

[0024] An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] The present invention provides a unicast and multicast integrated scheduling device and switching system, specifically applied to such as figure 1 shown. The switching system includes a line card 101 and a switching chip 102 . The line card 101 is connected to the switch chip 102 . The line card 101 corresponds to n input ports UQ, and each input port UQ corresponds to a line card. Each line card includes an input port buffer 103 and an integrated scheduling device 104 respectively. Alternatively, the switching system may be composed of the integrated scheduling device 104 and the switching chip 102 . The integrated scheduling device 104 includes a traffic monitoring module 107 and an input port scheduler 108 . like figure 2 As shown, the input port scheduler 108 includes a unicast polling wheel and a multicast polling wheel. The unicast...

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Abstract

The invention provides a unicast and multicast integrated scheduling device comprising a flow monitoring module and an input port scheduler. The invention further provides a unicast and multicast integrated scheduling exchange system which comprises an integrated scheduling device and an exchange chip. The invention also provides a unicast and multicast integrated scheduling method, comprising the following steps: obtaining the flow ratio information of a unicast queue and a multicast queue in input port flow; according to the flow ratio information of the unicast queue and the multicast queue in the input port flow, determining the time slot ratio of the unicast queue and the multicast queue; obtaining the state information cached by an intersection and the cell scheduling request information; and according to the time slot ratio of the unicast queue and the multicast queue, the state information cached by the intersection and the cell scheduling request information, scheduling the unicast cell and the multicase cell. The embodiment of the invention can greatly improve system throughput rate.

Description

technical field [0001] The invention relates to the communication field, in particular to a unicast and multicast integrated scheduling device, switching system and method. Background technique [0002] CICQ (Combined Input and Crosspoint Queued Switch Fabric, buffer crossbar switching structure) isolates the bandwidth conflict between the input port and the output port, adopts a distributed and parallel scheduling strategy, and its switching performance is better than that of the Buffer-less Crossbar structure. High-speed switching has shown great application potential. [0003] The scheduling method is the key technology of high-speed switching, which is responsible for solving the matching between multiple input ports and output ports, so that data transmission will not conflict. There are mainly three unicast scheduling methods in the CICQ architecture, but there are fewer methods involving multicast scheduling, and fewer methods for single-multicast integrated scheduli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/26H04L12/18H04L45/16
Inventor 曹爱娟李德丰孙团会苏皓宋健
Owner GLOBAL INNOVATION AGGREGATORS LLC
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