Flexible optical network anycast business energy-saving routing method based on resource perception

Abstract

The invention relates to a flexible optical network anycast business energy-saving routing method based on resource perception, and belongs to the technical field of optical fiber communication. According to the method, an anycast business data center selection mechanism based on resource perception is adopted firstly, a data center with the highest resource available matching degree is selected for business by the mechanism according to the anycast business resource demands and data center available resources, and "equal" allocation of the data center resources is realized to some extent; furthermore, a dredge-based green and energy-saving routing and frequency spectrum allocation strategy realizing transmission from the data center to request users is adopted, electric layer dredging is selected for anycast business by the strategy for priority , then optical layer dredging is selected secondarily, and business is enabled to find a transmission optical path with the minimum energy consumption by the routing strategy with fusion of multipath and single paths so that link frequency spectrum utilization rate can be enhanced and network blocking rate can be further reduced. Frequency spectrum flexible optical network service quality can be effectively enhanced and network energy consumption can be reduced by fusion of the data center selection mechanism and the green and energy-saving routing and frequency spectrum allocation strategy.

Description

technical field [0001] The invention belongs to the technical field of optical fiber communication, and relates to an energy-saving routing method for anycast services in flexible optical networks based on resource perception. Background technique [0002] The data center based on cloud computing has changed the traditional data center with its aggregation of resources, modular infrastructure, high reliability of automatic management, high cost performance, scalable computing power, massive resource storage and various information services. The independent system architecture and operation model of the data center is no longer a simple computing and storage center, but has become a service provider center. The rapid development of other applications. [0003] However, the construction of data centers based on cloud computing will bring energy consumption problems that cannot be ignored. Statistics show that in 2005, the electricity consumption of global data centers was 0....

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Problems solved by technology

[0005] Some researchers have studied the transmission of anycast services to cloud computing data centers in elastic optical networks, analyzed the performance impact of single-path and multi-path anycast services, proposed a multi-path routing algorithm, and proved that the multi-path Paths can effectively reduce the blocking rate of anycast services, but multipathing means that more equipment ports are consumed and more optical path frequency slots are required as guard bands, which will lead to greater energy consumption and more Waste of bandwidth resources

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