Virtual network mapping method of elastic optical network facing SDN
A technology of virtual network mapping and elastic optical network, applied in the field of virtual network mapping, it can solve the problems of not considering link resource usage, poor virtual network service capability, consumption of bandwidth resources, etc. The effect of less fragmentation of resources and less consumption of bandwidth resources
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[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0031] Refer to attached figure 1 , the specific steps of the present invention are described as follows.
[0032] Step 1, obtain the underlying physical network information.
[0033] Obtain the underlying physical network information:
[0034]Through the controller of the software-defined network SDN, obtain the software-defined network SDN elastic optical network resource information as the underlying physical network. The software-defined network SDN elastic optical network resource information includes the capabilities of programmable physical nodes in the underlying physical network and the physical links. bandwidth resources.
[0035] Step 2, receive virtual network request information:
[0036] The controller of the software-defined network SDN receives virtual network request information including virtual node resource requirements and virtual lin...
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