An anchor point-based virtual network damagement-resistant mapping method in an elastic optical network

An elastic optical network and virtual network technology, which is applied in the field of virtual network anti-destruction mapping, and can solve the problems of increasing blocking rate of virtual network mapping and decreasing resource utilization rate.

Active Publication Date: 2019-05-31
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0005] Although the elastic optical network can make the allocation and use of bandwidth resources more flexible and convenient, the fragme

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  • An anchor point-based virtual network damagement-resistant mapping method in an elastic optical network
  • An anchor point-based virtual network damagement-resistant mapping method in an elastic optical network
  • An anchor point-based virtual network damagement-resistant mapping method in an elastic optical network

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Embodiment Construction

[0045] The technical solutions in the embodiments of the present invention will be described clearly and in detail below with reference to the drawings in the embodiments of the present invention. The described embodiments are only some of the embodiments of the invention.

[0046] The technical scheme that the present invention solves the problems of the technologies described above is:

[0047] The concepts and models involved in the content of the present invention are as follows:

[0048] 1. Network model

[0049] Suppose the physical network model is G s (N s , L s ), where N s is the set of physical nodes, L s A collection of physical links. Virtual network service request topology is G v (N v , L v ), where N v is the set of virtual nodes, L v A collection of virtual links.

[0050] 2. Other symbols involved in the content of the present invention are as follows:

[0051] M status : virtual network mapping status identifier

[0052] ·N status : virtual ...

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Abstract

The invention requests to protect a virtual network destroy-resistant mapping method based on anchor points in an elastic optical network, and belongs to the technical field of cloud computing and communication networks. The invention provides an anchor point-based selection and mapping method for target physical nodes in a limited area according to the demand of virtual node resources and the distribution condition of physical network node resources. A selection and mapping method is proposed based on multiple channels and a minimum cost frequency slot window according to the bandwidth requirement of the virtual link and the distribution condition of frequency slot resources on a corresponding physical channel; according to the bandwidth distribution condition in multiple channels, a maximum bandwidth protection channel configuration method is adopted, and the destruction-resistant protection problem of the virtual link is solved. The mapping of the virtual network is realized by comprehensively utilizing the proposed node mapping, link mapping and protection path configuration methods, and the success rate of destroy-resistant mapping of the virtual network in the elastic opticalnetwork is effectively improved on the basis of improving the utilization rate of physical network node resources and spectrum resources.

Description

technical field [0001] The invention belongs to the technical field of cloud computing and communication network, and in particular relates to an anchor point-based virtual network invulnerability mapping method in an elastic optical network. Background technique [0002] With the rapid development of cloud computing, the research of network virtualization technology has been widely concerned by industry and academia. In a network virtualization environment, multiple virtual networks can be mapped to the same physical network, and each virtual network is independent from each other and shares the underlying physical network resources. The failure of physical links may lead to the interruption and loss of a large number of virtual network services, which will cause incalculable losses to users and service providers. Therefore, the invulnerable mapping of virtual networks is an important research in the field of cloud computing and communication networks. topic. [0003] At ...

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Application Information

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IPC IPC(8): H04L12/707H04L12/46H04L12/931H04L45/24
Inventor 鲍宁海匡明苏泊迪普.萨胡李国平吴涛
Owner CHONGQING UNIV OF POSTS & TELECOMM
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