A virtual optical network mapping method, device, equipment and medium

Abstract

The invention discloses a virtual optical network mapping method, which calculates the virtual importance of each virtual link according to the bandwidth requirement of the virtual link in the virtual optical network and the resource requirement of the virtual node; according to the path of the physical link in the physical optical network Conditions and resource conditions of physical nodes, calculate the physical importance of each physical link; sort each virtual link in descending order of virtual importance to form a mapping sequence; according to the mapping sequence, obtain the current virtual link that needs to be mapped ; Determining the physical link with the highest physical importance among all the current remaining physical links as the current physical link corresponding to the current virtual link; configuring physical resources that meet the mapping requirements of each virtual link in the physical optical network. In addition, a virtual optical network mapping device, equipment and medium provided by the present invention correspond to the above-mentioned 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 technologies, and in particular, to a virtual optical network mapping method, apparatus, device and medium. Background technique [0002] With the rapid development of services such as cloud computing, big data, smart home, and the Internet of Things, people's demand for network capacity has exploded, and the rigidity of the Internet architecture has become an urgent problem to be solved. And network virtualization can effectively eliminate the rigid problem of optical network, so that network resources can be scheduled and allocated more flexibly. As an effective way of network virtualization, the main purpose of virtual optical network mapping 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 exist...

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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