Method for implementing cross-domain virtual network mapping

Abstract

The invention relates to a method for implementing cross-domain virtual network mapping, and belongs to the technical field of communications. According to the invention, after a user generates a business request, a service provider initiates construction of a multi-domain virtual network request, and an appropriate node and path are selected from an underlying cross-domain fusion network to bearresource demands of the multi-domain virtual network request. According to the invention, the virtual network request and the local and global topological attribute of a node in an underlying physicalnetwork are analyzed, the network local resource attribute is combined, a node multi-attribute evaluation model is established by means of an improved principal component analysis method, the priority of the node in the mapping process is measured based on the evaluation model and by means of the technique for order of preference by similarity to ideal solution, pressure distribution of an underlying link load is analyzed at the same time, a well-resourced bearing path is selected for a virtual link, an underlying multi-domain network resource can be better utilized, the construction successrate of the multi-domain virtual network request is increased, the ratio of network income to cost is increased, the resource distribution equilibrium is effectively improved, and network mapping timedelay can be reduced.

Description

technical field [0001] The invention belongs to the technical field of communication, and relates to a method for realizing cross-domain virtual network mapping. Background technique [0002] The cross-domain underlying physical network consists of a heterogeneous wireless access network, an optical network backbone network, and a data center network. Different network layers have different physical network resources, such as two-dimensional resource block resources in the wireless frequency domain and time domain, wireless backhaul bandwidth resources, optical fiber spectrum resources, and IT computing resources. The intra-layer and inter-layer communication technologies are different. Traditional Each layer of the network architecture is independent, closed and inflexible, which cannot meet the needs of 5G services. How to realize inter-layer collaboration of cross-domain underlying network facilities and unified management of physical network resources is a key challenge...

AI Technical Summary

Problems solved by technology

[0004] At present, there are still relatively few studies on cross-domain virtual network mapping. Therefore, in-depth analysis of topology attributes and resource attributes in a cross-domain converged network environment to achieve efficient mapping of virtual networks and effective utilization of underlying network resources is the key to realizing 5G networks. A technical problem that urgently needs to be solved

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