Virtual optical network collaborative mapping method and device
A technology of a virtual optical network and a mapping method, which is applied in the field of virtual optical network collaborative mapping, can solve the problems of lack of mutual cooperative mapping between virtual nodes and virtual links, failure to consider the attributes and characteristics of virtual nodes, and difficult network resources, etc. Configuration issues, the effect of improving resource utilization, reducing complexity
Active Publication Date: 2019-09-27
SUZHOU UNIV
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However, this mapping method does not consider the attributes of virtual nodes during the mapping process. It only maps virtual optical networks from the perspective of optical network resource optimization, and lacks effective virtual nodes and virtual links in virtual optical networks. collaborative mapping
[0006]Although the above two methods can well solve the problem of mapping the virtual optical network to the physical optical network, these two mapping methods combine virtual nodes and virtual links with each other Separate mapping, lack of mutual collaborative mapping between virtual nodes and virtual links
Therefore, these two virtual optical network mapping methods are difficult to optimize network resources
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[0038] The present invention mainly aims at the virtual optical network mapping problem, according to the basic properties of the virtual nodes and virtual links of the virtual optical network, pre-configures the candidate path groups of all node pairs in the physical optical network, and constructs the physical optical network based on different objectives The mapping auxiliary diagram uses the virtual node and virtual link collaborative mapping method to map the virtual light to the physical optical network, and according to the bandwidth requirements of each virtual link, selects different transmission rates and modulation formats, and distributes them in the physical optical network. Bandwidth resources required by the virtual link.
[0039] The invention is realized through a collaborative mapping device oriented to virtual nodes and virtual links. Such as figure 1 As shown, the device includes:
[0040] The virtual node and virtual link mapping sequence division module 1...
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The invention discloses a virtual optical network cooperation mapping method. According to the characteristic attribute of the virtual nodes and the virtual links in a virtual optical network, the virtual optical network cooperation mapping method can perform mapping sequence division and classification, and can determine the mapping sequence of the virtual nodes and the virtual links, and can configure a standby path corresponding to each node in advance, and can construct a physical optical network mapping auxiliary graph for the preconfigured path based on each node, and can map the virtual links to the preconfigured path of the physical optical network according to the bandwidth requirement of the virtual links and can determine the transmission rate and the corresponding modulation format of the selected path, and then can distribute the corresponding bandwidth resource on the selected path until all the virtual nodes and the virtual links are mapped to the physical optical network so that the cooperation mapping process of the virtual optical network can be completed. The virtual optical network cooperation mapping method solves the problem about optimization of network resource mapped to the physical optical network by the virtual optical network.
Description
technical field [0001] The invention belongs to the technical field of virtual optical network mapping, and in particular relates to a virtual optical network cooperative mapping method and device for virtual nodes and virtual links. Background technique [0002] With the rapid development of cloud services and data center networks, Internet services and mobile application services have shown a huge bandwidth growth trend, which is promoting the development of optical network resources in the direction of openness and scalability. Under the integration of large-scale networking and multiple network technologies, based on user requirements for network bandwidth resources and user authority requirements for flexible configuration and scheduling of optical network resources, optical network virtualization technology and network function virtualization will be able to meet user requirements. Bandwidth service requirements, especially, optical network virtualization is one of the...
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IPC IPC(8): H04Q11/00
Inventor 陈伯文
Owner SUZHOU UNIV