CN110830315A - Network function construction method and device - Google Patents

Abstract

The invention discloses a method and device for constructing a network function. By calling a targeted business demand analysis strategy, the network demand of the received business request is analyzed to generate a network business view; the current network resources are analyzed to generate a network Resource information view; by invoking the targeted service plan customization strategy, based on the network business view and network resource information view, the service plan for the business request is generated; by calling the targeted network resource allocation strategy, the service plan based on the business request is Business requests allocate network resources. In this way, through the targeted analysis of the service request, the network requirements for the service request can be obtained, and the service plan of the service request can be generated based on the current network state and the service request demand, which realizes the adaptation of the upper-layer application and the underlying resources. , and then allocate network resources based on the service plan requested by the business. As a result, targeted network guarantees can be provided for service requests.

Description

A kind of network function construction method and device

technical field

The present invention relates to the field of the Internet, and in particular, to a method and device for constructing a network function.

Background technique

The network function construction process can be understood as a response process to a service, such as a service that a user requests to play a video request. In order to respond to the video playback request, network resources, such as network paths and network bandwidth, are allocated to users. The network construction process in the prior art usually adopts the static strategy mode, that is, the same function construction strategy is adopted for all business requirements, such as high-definition video requests, live broadcast requests, and email sending and receiving requests. , using the same strategy to construct the network.

However, because different service requests have different network requirements, for example, high-definition video requires wider bandwidth, live broadcasting requires lower latency, and sending and receiving emails requires lower packet loss rate. Provide targeted network protection according to business needs.

SUMMARY OF THE INVENTION

In view of this, the embodiments of the present invention provide a network function construction method and device, which solves the problem in the prior art that targeted network guarantees cannot be provided for the needs of different services.

The embodiment of the present invention discloses a network function construction method, including:

receive business requests;

Invoking a business requirement analysis strategy for the business request, analyzing the network requirement of the business request, and generating a network business view;

Analyze current network resources and generate network resource information views;

Invoking a service solution customization policy for the service request, and generating a service solution for the service request based on the network service view and the network resource view;

A network resource allocation policy for the service request is invoked, and network resources are allocated for the service request based on the service scheme.

Optionally, invoking a service requirement analysis strategy for the service request, analyzing the network requirement of the service request, and generating a network service view, including:

Analyzing the data traffic of the service request to determine the service type of the service request;

Determine whether to include a business requirements analysis strategy for the business type;

If a business requirement analysis strategy matching the business type is included, the first target business requirement analysis strategy matching the business type is invoked, and based on the first target business requirement analysis strategy Analyze requirements and generate network business views;

If the service requirement analysis policy matching the service type is not included, the default service requirement analysis policy is invoked, and the network requirement of the service request is analyzed based on the default service requirement analysis policy to generate a network service view.

Optionally, invoking a service solution customization policy for the service request, and generating a service solution for the service request based on the network service view and the network resource view, including:

Judging whether a service plan customization strategy matching the type of the service request is included;

If the service solution customization policy matching the service request type is included, the first target service solution customization policy matching the service request type is invoked, and based on the network service view and the network resource view, a the service plan of the business request;

If the service plan customization strategy matching the type of the service request is not included, the default service plan customization strategy is invoked, and based on the network service view and the network resource view, a service plan for the service request is generated .

Optionally, generating a service solution for the business requirement based on the network service view and the network resource view, including:

Fitting the network service view and the network resource view;

Based on the fitting result, a transmission path is allocated for the service request, and a node serving the service request is deployed on the transmission path.

Optionally, the invoking a network resource allocation policy for the service request, and allocating network resources for the service request based on the service plan, includes:

Determine whether to include a network resource allocation strategy that matches the type of the service request;

If a network resource allocation strategy matching the type of the service request is included, invoke the network resource allocation strategy matching the type of the service request, and allocate network resources for the service request based on the service plan;

If there is no network resource allocation policy matching the type of the service request, the default network resource allocation policy is invoked, and network resources are allocated for the service request based on the service plan.

Optionally, allocating network resources based on the service solution includes:

deploying a service type based on the network requirements of the service request on the transmission path allocated for the service request;

The processing capability and forwarding mode of each service node on the transmission path are defined based on the service scheme.

Optionally, also include:

In response to the instruction of adding or updating the business requirements analysis strategy, adding the received second target business requirements analysis strategy, or replacing the existing business requirements analysis strategy with the received second target business requirements analysis strategy;

In response to an instruction to add or update the service solution customization strategy, add the received second target service solution customization strategy, or replace the received second target service solution customization strategy with an existing service solution customization strategy;

In response to adding or updating the network resource allocation strategy, the received second target network resource allocation strategy is added or the received second target network resource allocation strategy is replaced with an existing target network resource allocation strategy.

The embodiment of the present invention also discloses a network function construction device, including:

a receiving unit for receiving a service request;

a service requirement analysis unit, configured to invoke a service requirement analysis strategy for the service request, analyze the network requirement of the service request, and generate a network service view;

A network analysis unit, configured to analyze the current network resources and generate a network resource information view;

a service solution customization unit, configured to invoke a service solution customization strategy for the service request, and generate a service solution for the service request based on the network service view and the network resource view;

A network resource allocation unit, configured to invoke a network resource allocation strategy for the service request, and allocate network resources for the service request based on the service scheme.

Optionally, the business requirement analysis unit includes:

a service type determination subunit, configured to analyze the data traffic of the service request, and determine the service type of the service request;

a first judging subunit, used for judging whether a business requirement analysis strategy for the business type is included;

The first business requirement analysis subunit is configured to call the first target business requirement analysis strategy matching the business type if the business requirement analysis strategy matching the business type is included, and based on the first target business The demand analysis strategy analyzes the business demand of the business request, and generates a network business view;

The second business requirement analysis subunit is configured to invoke a default business requirement analysis strategy if the business requirement analysis strategy matching the business type is not included, and analyze the business requirement based on the default business requirement analysis strategy The requested network requirements are analyzed to generate a network business view.

Optionally, also include:

The first self-defining unit is used to add the received second target business requirement analysis strategy in response to an instruction to add or update the business requirement analysis strategy, or replace the received second target business requirement analysis strategy with an existing business requirement analysis strategy;

The second customization unit is configured to add the received second target service solution customization strategy, or replace the received second target service solution customization strategy with the existing received second target service solution customization strategy in response to an instruction to add or update the service solution customization strategy Service plan customization strategy;

a third self-defining unit, configured to add the received second target network resource allocation strategy or replace the received second target network resource allocation strategy with an existing target network resource in response to adding or updating the network resource allocation strategy Allocation strategy.

The embodiment of the invention discloses a method and device for constructing a network function. By invoking a targeted business demand analysis strategy, the network demand of the received business request is analyzed to generate a network business view; the current network resources are analyzed, Generate network resource information view; by invoking targeted service plan customization strategy, based on network business view and network resource information view, generate service plan for business request; by calling targeted network resource allocation strategy, service plan based on business request , which allocates network resources for service requests. Therefore, by analyzing the service requests in a targeted manner, the network requirements for the service requests can be obtained, and a service plan for the service requests can be generated based on the current network status and the service request requirements, which realizes the adaptation of the upper-layer application and the underlying resources. , and then allocate network resources based on the service plan requested by the business. As a result, targeted network guarantees can be provided for service requests.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to the provided drawings without creative work.

1 shows a schematic flowchart of a method for constructing a network function according to an embodiment of the present invention;

2 shows a schematic flowchart of a method for analyzing network requirements of the service request provided by an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an apparatus for constructing a network function disclosed in an embodiment of the present invention;

Figure 4 shows a schematic diagram of a software-defined model library.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Referring to FIG. 1 , a schematic flowchart of a method for constructing a network function provided by an embodiment of the present invention is shown. In this embodiment, the method includes:

S101: Receive a service request;

In this embodiment, the service request is a network service request initiated by a user, such as a video playback request, a request for sending and receiving emails, and the like.

Among them, it should be noted that the following network function construction process can be understood as a process of responding to a service request.

S102: Invoke a service requirement analysis strategy for the service request, analyze the network requirement of the service request, and generate a network service view;

In this embodiment, since different service requests have different network requirements, in order to meet different service requirements, a variety of different service requirement analysis strategies are stored in the system in advance to analyze the network requirements of the service requests. A variety of different business requirements are used for different types of business requests, such as business demand analysis strategies for high-definition video requests, business demand analysis strategies for email sending and receiving requests, and business demand analysis strategies for live broadcast requests.

Among them, the network requirements of business requests are analyzed to generate network business views, which mainly transform business requirements into formalized description requests, and map diverse upper-layer applications into network services.

The network service view information is a combination of network requirements requested by the service, for example, including: service type requirements, security requirements, QoS service requirements, node or link resource requirements, and the like. Among them, the service type requirements include data services, voice services, video services, point-to-point download services, and the like. Security requirements include: security level requirements, encryption characteristics and other requirements. QoS service requirements include delay, packet loss rate, throughput, and jitter. Node or link requirements include node processing capability, link bandwidth resources, network information topology information, and the like.

In this embodiment, in order to provide a network guarantee more targeted to the service request, the service requirement analysis strategy may be set with different granularities, for example, the following two granularities may be included: setting the service requirement with the type of service request as the minimum granularity Analysis strategy, or set business requirements analysis strategy with the smallest granularity of service request.

The following takes the type of the service request as the smallest granularity as an example to illustrate the invocation process of the service requirement analysis strategy. Specifically, S102 includes:

S201: analyze the data traffic of the service request, and determine the service type of the service request;

S202: determine whether to include a business requirement analysis strategy for the business type;

S203: If included in the business requirement analysis strategy matching the business type, call a first target business requirement analysis strategy that matches the business type, and based on the first target business requirement analysis strategy Analyze business requirements and generate network business views;

S204: If the business requirement analysis strategy matching the business type is not included, call the default business requirement analysis strategy, and analyze the network requirement of the service request based on the default business requirement analysis strategy, and generate Web business view.

Among them, the default business requirement analysis strategy can be understood as a general business requirement analysis strategy, mainly for business types that are not defined.

It can be seen from the above introduction that the priority of the defined business requirements analysis strategy is higher than the default business requirements analysis strategy. However, if the business requirement strategy of the business type is not defined, the default business requirement analysis strategy can be used.

Among them, the detection of the data type can be performed by various methods, which are not limited in this embodiment, for example, it can include:

Business traffic detection technology, deep packet inspection technology, and deep/dynamic traffic detection technology can accurately analyze business data traffic.

S103: analyze the current network resources, and generate a network resource information view;

In this embodiment, analyzing the network resources can be understood as analyzing the state of the current network resources, and converting the current network resources into a network resource information view according to preset format requirements.

The network resource information view includes: network node resources, network status resources, topology information and network infrastructure construction information, network service deployment status, life cycle, and link load status and congestion.

S104: Invoke a service solution customization strategy, and generate a service solution for the service request based on the network service view and the network resource view;

In this implementation, in the prior art, the static strategy mode is used to construct the network, which will lead to the problem of incompatibility between upper-layer applications and underlying resources. and network resource views, generate service plans for business requests, and form routing addressing methods that meet specific business requirements, such as business service quality and network dynamic behavior characteristics.

The service solution may include, for example, generating a transmission path for the service request, and generating a deployment location of the service type required by the service on the transmission path, so that the network function can meet the network requirement of the service request.

In this embodiment, in order to provide a network guarantee more targeted to the service request, the service scheme customization policy can be set with different granularities, for example, the following two granularities can be included: setting the service scheme with the type of the service request as the minimum granularity Customize the strategy, or set the service plan customization strategy with the service request as the smallest granularity.

The following takes the type of the service request as the smallest granularity as an example to illustrate the invocation process of the service plan customization policy. Specifically, S104 includes:

Judging whether a service plan customization strategy matching the type of the service request is included;

If the service solution customization policy matching the service request type is included, the first target service solution customization policy matching the service request type is invoked, and based on the network service view and the network resource view, a the service plan of the business request;

If the service plan customization strategy matching the type of the service request is not included, the default service plan customization strategy is invoked, and based on the network service view and the network resource view, a service plan for the service request is generated .

Among them, the default service plan customization strategy can be understood as a general service plan customization strategy, mainly for the business type that is not defined.

Wherein, the process of generating a service solution for business requirements may include:

Fitting the network service view and the network resource view;

Based on the fitting result, a transmission path is allocated for the service request, and a node serving the service request is deployed on the transmission path.

In this embodiment, matching the network service view and the network resource view can be understood as matching the current network resources with the service requests, so that the network resources satisfy the service quality of the service and the network dynamic behavior characteristics.

In this embodiment, allocating a transmission path for a service request can be understood as converting the service request into an addressing route. Wherein, the allocated transmission path is used to transmit the data packet in response to the service request. Nodes that provide services are deployed on the path, so that the service type, security performance, QoS service capability and node link resources of the transmission path can meet the network requirements of the service request.

S105: Invoke a network resource allocation strategy, and allocate network resources for the service request based on the service scheme;

In this embodiment, allocating network resources for a service request based on a service scheme is mainly to adapt the allocated network resources to the service request, for example, converting the service scheme into the processing capability and forwarding method of each network element node on the transmission path of the service request.

In this embodiment, in order to be able to provide a network guarantee more targeted to service requests, network resource allocation policies may be set with different granularities, for example, the following two granularities may be included: setting network resources with the type of service request as the smallest granularity Allocation strategy, or set network resource allocation strategy with service request as the smallest granularity.

The following takes the type of the service request as the smallest granularity as an example to illustrate the invocation process of the network resource allocation strategy. Specifically, S104 includes:

Determine whether to include a network resource allocation strategy that matches the type of the service request;

If a network resource allocation strategy matching the type of the service request is included, invoke the network resource allocation strategy matching the type of the service request, and allocate network resources for the service request based on the service plan;

If there is no network resource allocation policy matching the type of the service request, the default network resource allocation policy is invoked, and network resources are allocated for the service request based on the service plan.

The default network resource allocation strategy can be understood as a general network resource allocation strategy, mainly for service types that are not defined.

Wherein, S105 may include:

deploying a service type based on the network requirements of the service request on the transmission path allocated for the service request;

The processing capability and forwarding mode of each service node on the transmission path are defined based on the service scheme.

In this embodiment, in order to adapt to the current network environment, service function links corresponding to service types may be constructed and deployed based on the processing capabilities of nodes in the current network and network link bandwidth resources.

Further, the business requirements analysis strategy, service plan customization strategy and network resource allocation strategy can be customized, for example, it also includes:

In response to the instruction of adding or updating the business requirements analysis strategy, adding the received second target business requirements analysis strategy, or replacing the existing business requirements analysis strategy with the received second target business requirements analysis strategy;

In response to an instruction to add or update the service solution customization strategy, add the received second target service solution customization strategy, or replace the received second target service solution customization strategy with an existing service solution customization strategy;

In response to adding or updating the network resource allocation strategy, the received second target network resource allocation strategy is added or the received second target network resource allocation strategy is replaced with an existing target network resource allocation strategy.

Among them, it should be noted that the second target business requirement analysis strategy is a user-defined, newly generated business requirement analysis strategy; the second target service plan customization strategy is a user-defined, newly generated service plan customization strategy; The second target network resource allocation strategy is a user-defined, newly generated network resource allocation strategy.

Among them, in addition to adding and updating business requirement analysis strategies, service plan customization strategies and network resource allocation strategies, existing business demand analysis strategies, service plan customization strategies and network resource allocation strategies can also be modified.

In this embodiment, the business requirement analysis strategy, the service solution customization strategy, and the network resource allocation strategy may be stored in a preset software-defined model library, and in the process of network construction, the business demand analysis in the software-defined model library may be invoked Strategy, service plan customization strategy and network resource allocation strategy.

Moreover, it can be known from the above introduction that the demand analysis strategy, the service plan customization strategy and the network resource allocation strategy can be modified, added and replaced in the software-defined model library.

In addition, the policies provided in the software-defined model library can directly act on each link of network function construction through the compiler, support the interconnection and interoperability of any standard protocol or private network protocol, and support protocol-independent service orchestration, routing and interconnection. Forward.

In this embodiment, by calling a targeted business demand analysis strategy, the network demand of the received business request is analyzed to generate a network business view; the current network resources are analyzed to generate a network resource information view; The service plan customization strategy, based on the network business view and the network resource information view, generates the service plan for the business request; by invoking the targeted network resource allocation strategy, the service plan based on the business request allocates network resources for the business request. In this way, through the targeted analysis of the service request, the network requirements for the service request can be obtained, and the service plan of the service request can be generated based on the current network state and the service request demand, which realizes the adaptation of the upper-layer application and the underlying resources. , and then allocate network resources based on the service plan requested by the business. As a result, targeted network guarantees can be provided for service requests.

Referring to FIG. 3, an embodiment of the present invention further discloses a schematic structural diagram of a device for constructing a network function. In this embodiment, the device includes:

301. A receiving unit, configured to receive a service request;

302. A business demand analysis unit, configured to invoke a business demand analysis strategy for the business request, analyze the network demand of the business request, and generate a network business view;

303. A network analysis unit, configured to analyze current network resources and generate a network resource information view;

304. A service solution customization unit, configured to invoke a service solution customization strategy for the service request, and generate a service solution for the service request based on the network service view and the network resource view;

305. A network resource allocation unit, configured to invoke a network resource allocation policy for the service request, and allocate network resources for the service request based on the service scheme.

Optionally, the business requirement analysis unit includes:

a service type determination subunit, configured to analyze the data traffic of the service request, and determine the service type of the service request;

a first judging subunit, used for judging whether a business requirement analysis strategy for the business type is included;

The first business requirement analysis subunit is configured to call the first target business requirement analysis strategy matching the business type if the business requirement analysis strategy matching the business type is included, and based on the first target business The demand analysis strategy analyzes the business demand of the business request, and generates a network business view;

The second business requirement analysis subunit is configured to invoke a default business requirement analysis strategy if the business requirement analysis strategy matching the business type is not included, and analyze the business requirement based on the default business requirement analysis strategy The requested network requirements are analyzed to generate a network business view.

Optionally, the service plan customization unit includes:

a second judging subunit, used for judging whether a service plan customization strategy matching the type of the service request is included;

The first service plan customization subunit is configured to call the first target service plan customization strategy matching the service request type if the service plan customization strategy matching the service request type is included, and based on the network service view and the network resource view to generate a service plan for the service request;

The second service plan customization subunit is configured to invoke the default service plan customization strategy if the service plan customization strategy matching the type of the service request is not included, and based on the network service view and the network resource view , and generate a service plan for the service request.

Optionally, the service plan customization unit further includes:

a fitting subunit, configured to fit the network service view and the network resource view;

The service plan customization subunit is configured to allocate a transmission path for the service request based on the fitting result, and deploy a node providing service for the service request on the transmission path.

Optionally, the network resource allocation unit includes:

A third judging subunit for judging whether a network resource allocation strategy matching the type of the service request is included;

The first network resource allocation subunit is used to call the network resource allocation strategy matching the type of the service request if the network resource allocation strategy matching the type of the service request is included, and based on the service scheme, the service requests allocating network resources;

A second network resource allocation subunit, configured to invoke a default network resource allocation strategy if a network resource allocation strategy matching the type of the service request is not included, and allocate a network for the service request based on the service scheme resource.

Optionally, the network resource allocation unit further includes:

a service type deployment subunit, configured to deploy a service type on the transmission path allocated for the service request based on the network requirements of the service request;

The node definition subunit is used to define the processing capability and forwarding mode of each service node on the transmission path based on the service scheme.

Optionally, also include:

The first self-defining unit is used to add the received second target business requirement analysis strategy in response to an instruction to add or update the business requirement analysis strategy, or replace the received second target business requirement analysis strategy with an existing business requirement analysis strategy;

The second customization unit is configured to add the received second target service solution customization strategy, or replace the received second target service solution customization strategy with the existing received second target service solution customization strategy in response to an instruction to add or update the service solution customization strategy Service plan customization strategy;

a third self-defining unit, configured to add the received second target network resource allocation strategy or replace the received second target network resource allocation strategy with an existing target network resource in response to adding or updating the network resource allocation strategy Allocation strategy.

The embodiment of the invention discloses a method and device for constructing a network function. By invoking a targeted business demand analysis strategy, the network demand of the received business request is analyzed to generate a network business view; the current network resources are analyzed, Generate network resource information view; by invoking targeted service plan customization strategy, based on network business view and network resource information view, generate service plan for business request; by calling targeted network resource allocation strategy, service plan based on business request , which allocates network resources for service requests. Therefore, through the targeted analysis of the service request, the network requirements for the service request can be obtained, and the service plan for the service request can be generated based on the current network status and the service request demand, which realizes the adaptation of the upper-layer application and the underlying resources. configuration, and then allocate network resources based on the service plan requested by the business. As a result, targeted network guarantees can be provided for service requests.

Referring to FIG. 4 , a software-defined model library is shown, in which a business requirement analysis strategy, a service solution customization strategy and a network resource allocation strategy are stored. In the process of executing the above-mentioned network function construction, the Describe the business requirements analysis strategy, service plan customization strategy and network resource allocation strategy in the software-defined model library.

Moreover, the requirements analysis strategy, service plan customization strategy and network resource allocation strategy can be modified, added and replaced in the software-defined model library.

It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. For the same and similar parts among the various embodiments, refer to each other Can.

The above description of the disclosed embodiments enables any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. a construction method of network function, is characterized in that, comprises: receive business requests; Invoking a business requirement analysis strategy for the business request, analyzing the network requirement of the business request, and generating a network business view; Analyze current network resources and generate network resource information views; Invoking a service solution customization policy for the service request, and generating a service solution for the service request based on the network service view and the network resource view; A network resource allocation policy for the service request is invoked, and network resources are allocated for the service request based on the service scheme. 2. The method according to claim 1, wherein the invoking a service requirement analysis strategy for the service request, analyzing the network requirement of the service request, and generating a network service view, comprise: Analyzing the data traffic of the service request to determine the service type of the service request; Determine whether to include a business requirements analysis strategy for the business type; If a business requirement analysis strategy matching the business type is included, the first target business requirement analysis strategy matching the business type is invoked, and based on the first target business requirement analysis strategy Analyze requirements and generate network business views; If the service requirement analysis policy matching the service type is not included, the default service requirement analysis policy is invoked, and the network requirement of the service request is analyzed based on the default service requirement analysis policy to generate a network service view. 3 . The method according to claim 2 , wherein the invoking a service plan customization policy for the service request generates a service for the service request based on the network service view and the network resource view. 4 . programs, including: Judging whether a service plan customization strategy matching the type of the service request is included; If the service solution customization policy matching the service request type is included, the first target service solution customization policy matching the service request type is invoked, and based on the network service view and the network resource view, a the service plan of the business request; If the service plan customization strategy matching the type of the service request is not included, the default service plan customization strategy is invoked, and based on the network service view and the network resource view, a service plan for the service request is generated . 4. The method according to claim 1 or 3, wherein the generating a service solution for the service requirement based on the network service view and the network resource view comprises: Fitting the network service view and the network resource view; Based on the fitting result, a transmission path is allocated for the service request, and a node serving the service request is deployed on the transmission path. 5. The method according to claim 2, wherein the invoking a network resource allocation policy for the service request, and allocating network resources for the service request based on the service scheme, comprises: Determine whether to include a network resource allocation strategy that matches the type of the service request; If a network resource allocation strategy matching the type of the service request is included, invoke the network resource allocation strategy matching the type of the service request, and allocate network resources for the service request based on the service plan; If there is no network resource allocation policy matching the type of the service request, the default network resource allocation policy is invoked, and network resources are allocated for the service request based on the service plan. 6. The method according to claim 1 or 5, wherein the allocating network resources based on the service scheme comprises: deploying a service type based on the network requirements of the service request on the transmission path allocated for the service request; The processing capability and forwarding mode of each service node on the transmission path are defined based on the service scheme. 7. The method of claim 1, further comprising: In response to the instruction of adding or updating the business requirements analysis strategy, adding the received second target business requirements analysis strategy, or replacing the existing business requirements analysis strategy with the received second target business requirements analysis strategy; In response to an instruction to add or update the service solution customization strategy, add the received second target service solution customization strategy, or replace the received second target service solution customization strategy with an existing service solution customization strategy; In response to adding or updating the network resource allocation strategy, the received second target network resource allocation strategy is added or the received second target network resource allocation strategy is replaced with an existing target network resource allocation strategy. 8. A construction device for network function, characterized in that, comprising: a receiving unit for receiving a service request; a service requirement analysis unit, configured to invoke a service requirement analysis strategy for the service request, analyze the network requirement of the service request, and generate a network service view; A network analysis unit, configured to analyze the current network resources and generate a network resource information view; a service solution customization unit, configured to invoke a service solution customization strategy for the service request, and generate a service solution for the service request based on the network service view and the network resource view; A network resource allocation unit, configured to invoke a network resource allocation strategy for the service request, and allocate network resources for the service request based on the service scheme. 9. The apparatus according to claim 8, wherein the business requirement analysis unit comprises: a service type determination subunit, configured to analyze the data traffic of the service request, and determine the service type of the service request; a first judging subunit, used for judging whether a business requirement analysis strategy for the business type is included; The first business requirement analysis subunit is configured to call the first target business requirement analysis strategy matching the business type if the business requirement analysis strategy matching the business type is included, and based on the first target business The demand analysis strategy analyzes the business demand of the business request, and generates a network business view; The second business requirement analysis subunit is configured to invoke a default business requirement analysis strategy if the business requirement analysis strategy matching the business type is not included, and analyze the business requirement based on the default business requirement analysis strategy The requested network requirements are analyzed to generate a network business view. 10. The apparatus of claim 8, further comprising: The first self-defining unit is used to add the received second target business requirement analysis strategy in response to an instruction to add or update the business requirement analysis strategy, or replace the received second target business requirement analysis strategy with an existing business requirement analysis strategy; The second customization unit is configured to add the received second target service solution customization strategy, or replace the received second target service solution customization strategy with the existing received second target service solution customization strategy in response to an instruction to add or update the service solution customization strategy Service plan customization strategy; a third self-defining unit, configured to add the received second target network resource allocation strategy or replace the received second target network resource allocation strategy with an existing target network resource in response to adding or updating the network resource allocation strategy Allocation strategy.

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