Switching method and node structure supporting burst packet and IP grouping

A technology for switching nodes and data packets, which is applied in the field of all-optical communication, can solve the problems of increasing the complexity of node implementation, achieve efficient statistical multiplexing capability, simple implementation, and reduce the number of effects
CN101155121AInactive Publication Date: 2008-04-02君创物业管理(深圳)有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
君创物业管理(深圳)有限公司
Publication Date
2008-04-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides an all optical switching method of two kinds of grain sizes and node structure for supporting burst packet / IP grouping. The invention uses electric buffer memory instead of the optical buffer memory difficult to implement. The IP transmission character of 'make the best' is used, the IP grouping transmitted between the adjacent nodes and / or the IP grouping with low request of QoS is stored by electric buffer memory. The burst packets book the information of network resource to make the IP grouping insert into the inter space between the burst packets to transmit. The IP grouping passes through the OBS node just like sandglass, and the burst packet is transmitted in the light field. The said method can effectively reduce the amount of the burst packets in network and the data is equably distributed on a wavelength channel using an electric random access memory. The invention not only provides statistical multiplex capacity of high performance, but also greatly reduces the blocking rate of network and data loss rate.
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Description

technical field

[0001] The invention relates to the technical field of all-optical communication, in particular to an all-optical switching method and node structure supporting multiple granularities. Background technique

[0002] In recent years, with the rapid development of the Internet and people's demand for multimedia information, technologies such as network transmission and exchange are facing severe challenges. How to effectively meet this growing bandwidth demand has become one of the main topics in network research. Wavelength division multiplexing (WDM) technology provides massive transmission bandwidth for optical fiber communication. One optical fiber carries hundreds of wavelength channels, and the transmission bandwidth reaches tens to hundreds of terabits per second. The currently used core routers receive high-speed optical signals, process them in parallel after optical / electrical conversion, and then multiplex them into high-speed optical signals for for...

Claims

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