Network service path selection system and selection method

A path selection and network service technology, applied in the field of computer networks, can solve the problems of not considering service instance dependencies, unable to meet service path selection requirements, etc., to achieve the effect of enhancing flexibility and scalability

Active Publication Date: 2016-04-27
THE PLA INFORMATION ENG UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of these achievements are based on combination rules or artificial intelligence for service composition and path selection, and these methods are only designed for a single functional requirement and a single service request, without considering the dependencies between service instances, and cannot satisfy multiple requirements. Requirements for service routing selection in the case of goal-constrained multiple service requests

Method used

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  • Network service path selection system and selection method
  • Network service path selection system and selection method

Examples

Experimental program
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Embodiment 1

[0054] Embodiment one, see figure 1 As shown, a network service path selection system includes a service analysis module, a network construction module, a path detection module, a service combination module, a network reconstruction module,

[0055] The service analysis module includes a demand analysis agent unit, a network meta-service database and a feature analysis unit. The demand analysis agent unit is used to be responsible for and query the network meta-service database, and to analyze the types and quantities of meta-services required by business service requests. The feature analysis unit is used to Yu is responsible for analyzing the sequence and dependencies between meta-services, and constructing service request chains;

[0056] The network construction module includes a node discovery agent unit, a reconfigurable service node database and a bearer network construction agent unit. The node discovery agent unit is responsible for querying the reconfigurable service...

Embodiment 2

[0060] Embodiment two, see Figure 1~3 As shown, it is basically the same as Embodiment 1, except that the service path evaluation standard refers to the use of the service path evaluation function Q path =f(P si , BW si ,D si ), evaluate the service quality of the service path searched by the probe according to the processing capability of the meta-service of the node on the service path, the link bandwidth and the end-to-end delay index; the selective processing of the probe specifically refers to: the node receives The path query probe, based on the probe information, performs the following operations: whether the current search service path meets the service request chain requirements, the service request chain requirements include resource requirements and meta-service requirements, if not, the node discards the probe, otherwise, judges Whether the node provides any meta-service in the service request chain, if not, the node discards the probe, otherwise, judges whethe...

Embodiment 3

[0062] Embodiment three, see Figure 4 As shown, a network service path selection method includes the following steps:

[0063] Step 1. Perform feature induction and demand analysis on the business service request, query the network meta-service database, and obtain the corresponding service request chain;

[0064] Step 2. Query the network service topology map, perform keyword-based service node retrieval on the reconfigurable service node database according to the resources in the service request chain and meta-service requirements, and obtain a set of candidate nodes in the network that meet the requirements of the service request chain;

[0065] Step 3. Establish a service bearer network for service requests according to the connection relationship and construction criteria of the candidate node set;

[0066] Step 4. According to the distributed selection detection mechanism, the target node of the service request sends a path query probe to the adjacent node that meets t...

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Abstract

The invention relates to a network service path selection system and selection method. The method comprises: carrying out inductive analysis on service requests and obtaining a service request chain; inquiring a network service topological graph, and constructing a service bearer network; inquiring a target node, generating an inquiry probe, and diffusing and transmitting the probe to adjacent nodes in the service bearer network, which meet requirements of the service request chain; by an intermediate node of the service bearer network, carrying out selection processing on the inquiry probe; according to probe storage information, transmitting the probe to service requesting nodes after meeting path search; by the service requesting nodes, sending probe confirmation to a service path and carrying out resource reservation; carrying out distribution and combination on each node service resource, and constructing a meta service set; detecting service requirement change, evaluating a service resource residue condition, and marking key nodes; and carrying out recombination and reconstruction on the service path according to a reconstruction criterion, and releasing occupied resources. According to the network service path selection system and selection method disclosed by the invention, the requirement for network resources when multiple service requests coexist can be met, and the utilization efficiency of the network resources is improved.

Description

technical field [0001] The invention relates to the technical field of computer networks, in particular to a network service path selection system and a selection method thereof. Background technique [0002] As we all know, it is very difficult to add new functions and services to the core network due to the "rigidity" of the current Internet architecture. The traditional Internet based on end-to-end design places almost all network intelligence on end hosts, while the core network only provides simple store-and-forward services. This "edge intelligence, simple core" design constitutes the simplicity of the Internet architecture, which is compatible with the network application scenarios at that time. However, the commercialization of the Internet, ubiquitous and heterogeneous application environments, emerging communication modes, and security and management challenges all require the Internet to provide diversified services, not just store-and-forward services. In respo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08
CPCH04L67/566H04L67/51
Inventor 兰巨龙张岩王鹏胡宇翔江逸茗申涓李印海
Owner THE PLA INFORMATION ENG UNIV
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