A Topology Reconfiguration Method for Optical Networks

A topology reconstruction and network topology technology, applied in the field of optical interconnection network, can solve the problems of low packet loss rate, long time, lack of fast processing speed, etc., achieve low delay, avoid packet loss, and reduce the number of effects

Active Publication Date: 2019-11-29
INST OF COMPUTING TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such a solution is limited to transforming single-layer optical network topologies, and is not suitable for multi-layer optical network topologies
In addition, in the above-mentioned conversion process, it is necessary to perform operations of adding and deleting links many times, so that it takes a long time to realize the entire process of topology conversion.
[0008] In summary, it can be seen that in the current prior art, there is a lack of a solution for topology reconfiguration of optical interconnection networks with fast processing speed and low packet loss rate.

Method used

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  • A Topology Reconfiguration Method for Optical Networks
  • A Topology Reconfiguration Method for Optical Networks
  • A Topology Reconfiguration Method for Optical Networks

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Embodiment Construction

[0044] figure 1 A schematic diagram of the physical connection of the optical network is shown. As introduced in the background, the optical network can perform topology reconfiguration without changing the original physical connection. refer to figure 1 , including Micro-Electro-Mechanical Systems (MEMES) and a plurality of arrayed waveguide grating routers (Array Wave guide Grating Router, AWGR) connected to the MEMES in the optical network, each AWGR is selected by wavelength The switch (wavelength-selective switch, WSS) is connected with the corresponding tunable laser (Tunable TRXs). figure 1C(i, j) in the i-th Region (domain) in the j-th Cluster (cluster), INTRA means intra-domain interconnection, INTER means inter-domain interconnection; there are 16 Racks in a Cluster (cluster) ( Cabinet), there are several servers in one cabinet; 16 Clusters in each domain, connected by one AWGR.

[0045] In the optical network, devices such as switches or routers, links between th...

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Abstract

The invention provides a topology reconstruction method for an optical network. The topology reconstruction method comprises the steps of 1) determining a target topology used for performing topology reconstruction; and 2) solving an intermediate topology based on a current topology and the target topology to enable the intermediate topology to include a shared link and at least a portion of an unshared link in both the current topology and the target topology.

Description

technical field [0001] The invention relates to an optical interconnection network, in particular to topology reconfiguration of the optical interconnection network. Background technique [0002] In recent years, the Internet industry has developed rapidly, and new network applications have been introduced continuously, which has led to a rapid increase in the number of Internet users; with the rise and development of the cloud computing industry, a large number of enterprises deploy their services to private or public cloud computing clusters, and the concentration of application deployment makes the scale of data centers Growing. Large-scale data centers carry many different types of applications such as big data processing, Internet applications, cloud computing, and scientific computing. Existing data centers use a fixed and single interconnection network structure to achieve high scalability, but it is difficult to efficiently meet Demand for multiple communication fea...

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H04L12/24
CPCH04L41/12
Inventor孙凝晖郭嘉梁元国军张少龙谭光明许刚肖鹏臧大伟张佩珩安学军
OwnerINST OF COMPUTING TECH CHINESE ACAD OF SCI