Virtual optical network mapping method, device, equipment and medium

Abstract

The invention discloses a virtual optical network mapping method, and the method comprises the steps: calculating the virtual importance of each virtual link according to the bandwidth demands of thevirtual links in a virtual optical network and the resource demands of virtual nodes; calculating the physical importance of each physical link according to the path condition of the physical link andthe resource condition of the physical node in the physical optical network; sorting the virtual links according to a descending order of the virtual importance degrees to form a mapping sequence; obtaining a current virtual link to be mapped according to the mapping sequence; determining the physical link with the highest physical importance in all the current remaining physical links as the current physical link corresponding to the current virtual link; and configuring physical resources meeting the mapping requirements of each virtual link in the physical optical network. Moreover, the virtual optical network mapping device, equipment and medium provided by the invention correspond to the method, so that the network cost of mapping can be reduced as much as possible, and the maximum profit can be obtained.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a virtual optical network mapping method, device, equipment and medium. Background technique [0002] With the rapid development of cloud computing, big data, smart home and Internet of Things and other services, people's demand for network capacity has exploded, and at the same time, the rigidity of the Internet architecture has become an urgent problem to be solved. Network virtualization can effectively eliminate the rigidity of optical networks and enable more flexible scheduling and allocation of network resources. Virtual optical network mapping is an effective network virtualization method. Its main purpose is to map the virtual optical network to the physical network on the basis of satisfying the constraints of node computing resources and bandwidth resources, so as to realize the effective utilization of physical layer resources. At present, the existing...

AI Technical Summary

Problems solved by technology

Although this mapping method reduces the network cost of mapping, the network load distribution is uneven, resulting in waste of underlying physical network computing resources and reducing the success rate of virtual network mapping.

[0007] Although the above two methods can realize the mapping of the virtual optical network to the physical optical network, the above methods are only designed for virtual nodes or virtual links, resulting in ignoring the network cost of network mapping or the number of successful mappings. , causing the total profit of network mapping to decrease, which cannot better meet the needs of users

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