Method, correlative device and system for virtual network migration

Abstract

A method, correlative device and system for virtual network migration are provided. The method of the embodiments of the present invention includes: locating the source physical node in a region physical network; obtaining the virtual element corresponding to each virtual network in the source physical node and the state information of each physical node in the region physical network; determining, according to the virtual elements and the state information, a physical node that can implement the virtual network migration in the region physical network; reconstructing the mapping of each virtual network and the region physical network respectively in the physical node, comparing the mapping corresponding to each virtual network, and selecting the mapping with the least migration consumption as the mapping that implements the migration; sending, according to the mapping that implements the migration, a migration instruction to the physical node that needs to implement the virtual network migration. Furthermore, the embodiments of the present invention also provide the correlative device and system that implement the method.

Description

technical field [0001] The present invention relates to the communication field, and in particular to a virtual network migration method, a related device and a system. Background technique [0002] As one of the important technologies in the future network architecture, network virtualization is expected to integrate different physical resources on the basis of existing physical facilities and provide an efficient and independent network service environment on demand. As a network environment, network virtualization technology allows service providers to dynamically form multiple heterogeneous virtual networks on the same physical facility, and each virtual network coexists and is independent of each other. At the same time, network virtualization technology allows virtual network owners to dynamically deploy and manage personalized end-to-end services for their users in their respective virtual networks. [0003] Virtual network migration is one of the important technolog...

AI Technical Summary

Problems solved by technology

[0010] In this prior art solution, the search for a new physical node is limited to the attachment of the original physical network architecture to search for a new physical node, but it is difficult to find a new physical node when the resource occupancy rate of the original physical network is large Therefore, the possibility of migration failure is relatively high; moreover, the search for new physical nodes in this scheme is based on the principle of the shortest path (that is, to find new physical nodes in the annex of the physical node ), and this search method does not take into account the resource occupancy rate of the new physical node itself. The resource occupancy rate of other physical nodes in the network is very small, resulting in unreasonable resource allocation and low network operation

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