Information switching realizing system and method and scheduling algorithm

A technology of information exchange and scheduling algorithm, applied in the field of network communication of information technology, can solve the problems of poor pertinence of port design, unfavorable differentiated services, poor isolation, etc., and achieve good scalability, low computational complexity, and low time The effect of the delay characteristic

CN1866927AInactive Publication Date: 2006-11-22CHINA NAT DIGITAL SWITCHING SYST ENG & TECH R&D CENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2006-11-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a system for realizing information communication and relative distribution method. Wherein, said system comprises an input port and a communicate unit; the input port is used to input data pack; said communicate unit is used to communicate date between the input port and the output port; the input port has delay queue; the input port divides each delay queue and selects data pack to be transferred to the communicate unit; the communicate unit stores the data pack and selects data pack to be transferred to the output port. The invention can divide the service data, and increase the insulation level according to the service demand.
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Description

technical field

[0001] The invention relates to the field of network communication of information technology, in particular to a system and method for realizing information exchange and a scheduling algorithm. Background technique

[0002] The switching fabric is the main architecture for fast packet forwarding at present. The previous design idea is to consider its versatility, that is, the ports of the switching fabric are designed for all possible arriving services, so the processing capabilities provided by the switching fabric are also same. Most of the existing technologies are based on this to study the performance of the switching structure, and design different caching strategies, such as output queuing (OQ, Output-Queued) structure, input queuing (IQ, Input-Queued) structure, joint input and output Queuing (CIOQ, Combined Input-Output-Queued) structure, etc.

[0003] refer to figure 1 In the switching system of prior art 1, all buffer queues in the output queuin...

Examples

Embodiment Construction

[0054] The present invention provides a system for realizing information exchange. The basic idea of ​​the system is: set a cache at the input port, adopt a virtual output queuing structure, divide each virtual output queue into different service queues according to service requirements, and each virtual The output queue can be divided into multiple service categories, and the scheduler of the input port selects the data packet for forwarding; after the data packet leaves the input port, it performs secondary buffering according to the destination port of the packet, and then forwards it to the output port.

[0055] According to the basic idea above, the system of the present invention will be described in conjunction with the accompanying drawings. refer to Figure 5 , Figure 5 It is a structural diagram of the main body of the system of the present invention, the system includes an input port 200, a switching unit 300 and an output port 400, wherein the input port 200 inc...