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

Inactive Publication Date: 2008-04-02
君创物业管理(深圳)有限公司
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Problems solved by technology

This will increase the implementation complexity of the node

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  • Switching method and node structure supporting burst packet and IP grouping
  • Switching method and node structure supporting burst packet and IP grouping

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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings, but the scope of the present invention is not limited in any way.

[0027] A schematic diagram of the node structure of the switching method supporting burst data packets / IP packets proposed by the present invention is shown in FIG. 1 . The OBS node shown in the figure does not divide into two parts, the edge and the core. It consists of a service classifier, a control module, an aggregation / de-aggregation module, an IP packet sending / receiving module, a data storage, a TS scheduler, an optical sending / receiving module, and an all-optical switching module. module, optical wavelength division multiplexer / demultiplexer, etc.

[0028]When the data with low QoS requirements is not considered to be transmitted in IP packets, after the data from the traditional network interface arrives at the OBS node, it first passes through the service classifier, and the service classifi...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04Q11/00H04J14/02H04B10/12H04L12/801
Inventor 袁驰李正斌徐安士
Owner 君创物业管理(深圳)有限公司
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