Large capacity and expandable packet switching network structure

A technology of network structure and packet switching, applied in the field of communication, can solve the problems of inadequacy, poor scalability, high cost of large-capacity switching networks, and achieve the effects of easy design, small network diameter, and good scalability.

Inactive Publication Date: 2004-09-01
XIDIAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since these types of direct connection networks are non-planar structures, the large-capacity switching networks realized with this network topology have the disadvantages of high implementation cost and poor scalability, etc., and the 2D torus network with planar structure And nowhere near the performance of 3D torus or hypercube networks

Method used

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  • Large capacity and expandable packet switching network structure
  • Large capacity and expandable packet switching network structure
  • Large capacity and expandable packet switching network structure

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Embodiment

[0020] The XD network structure of the present invention can be realized through a switching matrix composed of switching sub-boards and switching backplanes. That is, a switch matrix that can be extended horizontally is formed by the switch backplane and the switch sub-board in a switch frame. Multiple switch sub-boards can be plugged into the chassis, and each switch sub-board has one or more switching nodes. The switching capacity of a single chassis is generally tens of Gbps to hundreds of Gbps. The switching nodes in the chassis are connected by high-speed electrical connection through the switching backplane. Then, the vertical expansion of the network structure can be realized by putting multiple chassis into one cabinet. Since the connection between the chassis is relatively short, the switch chassis can still be connected electrically or optically. Each basic switching node has functions such as I / O interface, switching switch and controller. The main function of t...

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Abstract

The network structure is composed of multiple switching nodes connected each other directly. Each switching node possesses the input, the output and the transmit port in order to realize the functions of inputting, outputting and transmitting traffic flow. Each switching node is connected to adjacent nodes through multiple paths of chain. The 3D loop circuits connect these switching node, forming a planar network structure. This structure not only is in favor of designing backboard and PBC, simplifying the structure design of the switching system and the specific engineering implementation, but also has the good network performances, the fault tolerant capacities and the expansibility. Thus, the exchange capacity can be expanded from G bits level to T bits level applicable to the switching network structure utilized by the Internet kernel router.

Description

Technical field: [0001] The invention relates to the technical field of communication, in particular to a new large-capacity scalable packet switching network structure, which is suitable for constructing a T-bit core router of the packet Internet. Background technique: [0002] The information network represented by the Internet has increasingly become the foundation and an important part of the national information infrastructure. It has penetrated into various fields of society, becoming the basic needs of national progress and social development, and the basic carrier and supporting environment of the future knowledge economy. With the sharp increase in the number of global Internet users and the number of sites, the demand for bandwidth also increases sharply. The development of optical communication technology has doubled the transmission bandwidth resources and can meet the requirements of the network for bandwidth growth. The growth rate of network switching capacit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/931H04Q3/00H04Q3/545
Inventor 邱智亮陈震杨君刚刘故箐杨帆王少勇胡致远迟玲顾华玺钱霄红
Owner XIDIAN UNIV
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