WO2017193814A1 - Service chain generation method and system - Google Patents

Abstract

Provided are a service chain generation method and system, relating to the field of network communications. The method comprises: according to an operation strategy, determining a service node for realizing the operation strategy; and using service node information about the service node to generate a service chain for guiding the forwarding of a service packet. By separating networking planning and service chain orchestration of a service node, the complexity of service chain orchestration is significantly decreased, and the generation and matching of an operation strategy to a service chain can be automatically completed.

Description

Method and system for generating business chain Technical field

The present application relates to the field of network communications, for example, to a method and system for generating a service chain.

Background technique

Service Chain (Service Chain) is a packet forwarding technology that guides packets to be processed through multiple Service Nodes (SFs) in sequence. It is characterized by dynamically scheduling service nodes in the chain according to operational policies. The location in the middle, while the business node can quickly and flexibly enter and exit the business chain.

Through the service chain, messages can be dynamically forwarded in the data center and the carrier forwarding system, for example, classifying users, providing different value-added services for different users, or providing different services for different services according to service flow classification. Quality of Service (QOS).

It is assumed that under certain operational policies, service flow A and service flow B can respectively pass different Value-Added Service (VAS) nodes.

Service flow A: sf1->sf2->sf3->sf4->sf5;

Service flow B: sf1->sf4->sf5.

When the operational policy changes, the service flow B can also pass the same service node as the service flow A through the service orchestration.

At present, when the service chain is arranged, it needs to be combined with the network planning, that is, the network topology, the forwarding address, and other service node attribute information data of the value-added service node need to be collected. Currently, there is no suitable method for collecting the network planning information, generally Collect by hand. The service orchestration and the network planning are performed at the same time, which leads to difficulty in business scheduling, large workload, and slow link speed of service nodes.

Summary of the invention

The technical problem solved by the technical solution provided by the embodiment of the present disclosure is that the business chain is difficult to arrange due to the simultaneous business scheduling and networking planning.

A method for generating a service chain according to an embodiment of the present disclosure includes:

Determining a service node for implementing the operation policy according to an operation policy;

A service chain for guiding service packet forwarding is generated by using service node information of the service node.

Wherein the operation strategy is from an operation platform;

The method further includes: obtaining the service node information according to the service node used to implement the operation policy.

The determining the step of implementing the service node of the operation policy may include:

Generating a service processing manner for implementing the operation policy according to the operation policy;

Determining, according to the service processing manner of the operation policy, a service node that implements the service processing mode.

The step of generating a service processing manner for implementing the operation policy may include:

And generating, according to the operation policy, a service identifier about the processing manner.

The step of determining a service node that implements the service processing mode may include:

And obtaining, according to the service identifier, a value-added service related to the service identifier, and determining a service node name corresponding to the value-added service.

The step of obtaining service node information may include:

Transmitting, by the service information collection function device, an information query request including a service node name, and obtaining service node information of each service node that is returned by the service information collection function device;

The service information collection function device collects and stores the service node information reported by the service node corresponding to each value-added service in advance.

A storage medium according to an embodiment of the present disclosure stores a program for implementing the above-described service chain generation method.

A service chain generation system according to an embodiment of the present disclosure includes:

a service policy control function device, configured to determine a service node for implementing the operation policy according to an operation policy;

The service orchestration function device is configured to generate a service chain for guiding service packet forwarding by using service node information of the service node.

Wherein the operation strategy is from an operation platform;

The service orchestration function device is further configured to: obtain the service node information according to the service node used to implement the operation policy.

The service policy control function device may generate a service processing manner for implementing the operation policy according to the operation policy, and determine a service node that implements the service processing mode according to the service processing manner for implementing the operation policy.

The service policy control function device may generate a service identifier about the processing manner according to the operation policy.

The service policy control function device may obtain a value-added service related to the service identifier according to the service identifier, and determine a service node name corresponding to the value-added service.

The system can also include:

The service information collection function device is configured to collect and store the service node information reported by the service node corresponding to each value-added service in advance, and query the service query request of each service node according to the service query request including the service node name of the service orchestration function device. The service node information is sent to the service orchestration function device.

Embodiments of the present disclosure also provide a non-transitory computer readable storage medium storing computer executable instructions arranged to perform the above method.

An embodiment of the present disclosure further provides an electronic device, including:

At least one processor;

a memory communicatively coupled to the at least one processor; wherein

The memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to cause the at least one processor to perform the method described above.

The technical solution provided by the embodiment of the present disclosure has the following beneficial effects:

By separating the service chain orchestration from the networking planning of the service node, the embodiment of the present disclosure significantly reduces the complexity of the service chain orchestration, and can automatically complete the generation of the service chain according to the operation strategy.

BRIEF abstract

1 is a block diagram of a method for generating a service chain according to Embodiment 1 of the present disclosure;

2 is a block diagram of a service chain generation system according to Embodiment 2 of the present disclosure;

3 is a first schematic diagram of functions of a service chain generation system according to Embodiment 3 of the present disclosure;

4 is a schematic diagram of a functional layering logic of a service chain generation system according to Embodiment 4 of the present disclosure;

5 is a schematic diagram of implementing a service information collection function according to Embodiment 5 of the present disclosure;

6 is a flow chart of generating a service chain according to Embodiment 6 of the present disclosure;

FIG. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure.

detailed description

The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

1 is a block diagram of a method for generating a service chain according to Embodiment 1 of the present disclosure. As shown in FIG. 1, the steps include:

Step S101: Determine, according to an operation policy from the operating platform, a service node for implementing the operation policy.

The step of obtaining a service processing manner for implementing the operation policy according to the operation policy, and determining a service node that implements the service processing mode according to the service processing manner for implementing the operation policy. The service identifier corresponding to the operation policy may be obtained according to a predetermined matching algorithm, and then the value-added service related to the service identifier is obtained according to the service identifier, and the service node name corresponding to the value-added service is determined.

Step S102: Acquire service node information according to the service node used to implement the operation policy.

The step includes: sending the information query request including the service node name to the service information collection function device, and obtaining the service node information of each service node that is returned by the service information collection function device. The service node information includes service forwarding switch information, service node type information, service node attribute information, and service node identifier information corresponding to the service node.

The service information collection function device collects and stores the service node information reported by the service node corresponding to each value-added service in advance.

Step S103: Using the acquired service node information, generate a service chain for guiding service packet forwarding.

After the step S103, the service identifier and the service chain information are sent to the service forwarding processing function device. After that, the service forwarding processing function device obtains the matching service identifier according to the identified service characteristics of the received packet, and then according to the service. The identifier is used to determine the corresponding service chain, and the service chain information is encapsulated into the received packet to implement subsequent packet forwarding.

It will be understood by those skilled in the art that all or part of the steps of the above embodiments may be implemented by a program to instruct related hardware, and the program may be stored in a computer readable storage medium, and the program is executed. When it is, step S101 to step S103 are included. The storage medium may be a ROM/RAM, a magnetic disk, an optical disk, or the like.

2 is a block diagram of a service chain generation system according to Embodiment 2 of the present disclosure. As shown in FIG. 2, the method includes:

The service policy control function device 10 is configured to determine a service node for implementing the operation policy according to an operation policy from the operation platform. The service policy control function device 10 may generate a service processing manner for implementing the operation policy according to the operation policy, and determine a service node that implements the service processing mode according to the service processing manner for implementing the operation policy. The service policy control function device 10 may generate a service identifier for the processing mode according to the operation policy, and then obtain a value-added service related to the service identifier according to the service identifier, and determine a service corresponding to the value-added service. The node name.

The service orchestration function device 20 is configured to acquire service node information according to the service node for implementing the operation policy, and generate a service chain for guiding service message forwarding by using the acquired service node information. The service orchestration function device 20 can obtain the service node information of each service node that the service information collection function device 30 replies by sending the information query request including the service node name to the service information collection function device 30.

The service information collection function device 30 is configured to collect and store the service node information reported by the service node corresponding to each value-added service in advance, and query each service according to the information query request of the service orchestration function device 20 including the service node name. The service node information of the node is sent to the service orchestration function device 20.

3 is a first schematic diagram of a function of a service chain generation system according to Embodiment 3 of the present disclosure. As shown in FIG. 3, the system includes: a service policy control function device 10, a service orchestration function device 20, a service information collection function device 30, and service forwarding. The functional device 40 is processed.

The service policy control function device 10 generates a service identifier according to the operation policy, and delivers the service identifier to the service orchestration function device.

2. The business orchestration function device 20 obtains the service node names (ie, service node names, SF names) corresponding to which value-added services and value-added services are required to be performed by the service identity.

The service orchestration function device 20 sends each service node name to the service information collection function device 30, and obtains all required service chain node information through message interaction.

The service orchestration function device 20 generates a service forwarding chain (ie, a service chain), and delivers a matching relationship between the service feature identifier and the service forwarding chain and service chain information.

The service information collection function device 30 collects information of each value-added service processing node, including but not limited to the following: service forwarding switch information corresponding to the service node; service node type information; service node attribute information; service node identification information.

The service information collection function device classifies and manages all the collected information, and reports the service node information to the service orchestration function device through the interaction message.

4. The service forwarding processing function device 40 receives the service forwarding chain, generates a forwarding rule, and processes and forwards the packets conforming to the characteristics according to the order of the service chain.

In some embodiments, the method further includes:

The service chain node information reporting module: resides on the service forwarding processing device (ie, the service forwarding processing function device 40), and reports the service chain node information;

The service node information query module is configured to reside on the service orchestration device (ie, the service orchestration function device 20), and is configured to automatically obtain the service chain node information;

The service node information response device resides on the service information collection function device 30 and is configured to manage and transmit the service chain node information to the service orchestration device (ie, the service orchestration function device 20).

By adopting the method and system of the embodiments of the present disclosure, by separating the networking planning of the value-added service node (that is, the service node of the value-added service) from the service orchestration, the complexity of the service orchestration can be significantly reduced, and the operation strategy can be automatically completed to add value. Generation and matching of service forwarding chains.

4 is a schematic diagram of a functional layering function of a service chain generation system according to Embodiment 4 of the present disclosure. As shown in FIG. 4, the service policy control function device 10 includes a service policy module 11 and a service control module 12, and the service information collection function device 30 includes The service information collecting server 31 (that is, the SF network information server) and The plurality of SF32s, the service forwarding processing function device 40 includes a service identification module 41 and a service forwarding module 42. The working steps of this embodiment include:

Step S201: The service policy module 11 collects an operation policy from the operation platform, and sends the policy to the service control module 12.

Step S202: The service control module 12 generates a service identifier according to the service policy (ie, the operation policy), and sends the service identifier to the service orchestration function (ie, the service orchestration function device 20).

The service identifier can uniquely identify a type of user, or a group of services, or certain packet features, and the service control module can generate a service identifier by using a manual configuration or an automatic manner.

Step S203: The service orchestration function determines, by the service identifier, all the service nodes required by the operation policy, and the service nodes include the service nodes, which can be automatically generated by using some rules, and then query the SF network information server 31 for the information of the service node to generate a piece of information. The service chain sends the service identifier and its corresponding service chain information to the service identification module 41, and the matching rule of the service packet feature and the service identifier is sent to the service identification module 41.

Step S204: The service identification module 41 receives the packet, identifies the service feature, and obtains the service identifier according to the matching rule of the service feature and the service identifier, determines a service chain by using the service identifier, and encapsulates the necessary service chain information in the packet. Sending a message to the service forwarding module 42.

Step S205: The service forwarding module 42 receives the packet sent by the service identification module 41, parses the service chain information, and sends the packet to the corresponding service node 32.

Step S206: The service node 32 sends the processed packet to the service forwarding module 42.

Step S207: The service forwarding module 42 continues to send the message to the next service forwarding module instance or the service node according to the service chain information.

Step S208: The last service forwarding module instance in the service chain deletes the service chain information in the packet and sends the packet to the outside of the system.

FIG. 5 is a schematic diagram of a service information collection function according to Embodiment 5 of the present disclosure. As shown in FIG. 5, the SF network information server 31 includes a plurality of SFs 32, such as SF32a and SF32b shown in FIG. 5, and is associated with the corresponding SF32. The service forwarding module 42 is, for example, the service forwarding module 42a associated with SF32a and SF32b as shown in FIG. The steps for collecting the service information are as follows:

Step S301: The Service Function Chain (SFF) resides in the information processing unit (that is, the unit located in the service forwarding module 42), collects configuration information, and reports to the service node 32. Forward information.

Step S302: The service node resides in the information processing unit (that is, the unit located in the service node SF32), receives the SFF report information, and reports the service node information and the SFF information to the server.

Step S303: The service information server resides in the information processing unit (that is, the unit located in the SF network information server 31), and collects information reported by each node and saves the information.

The SF network information server 31 can collect information of all SFs, including but not limited to SF type, SF name, service address of SF, Service Function Forwarder (SFF) address, and other required content, and then Save all collected information.

Table 1 Business node information table

SF_TYPE SF_NAME SF_IP SFF_IP REMARK TOOLBAR TB1 1.1.1.1 2.2.2.1 FILTER FILTER1 1.1.1.2 2.2.2.2 VO VO1 1.1.1.3 2.2.2.3

Toolbar (ToolBar, TB), which inserts the advertising information that the user is interested in in the browsing page, for promotion or advertising.

IP filtering, for example, prohibits minors from accessing certain websites.

Video Optimization (VO), which implements smooth playback of smart terminal video through compression or caching, while reducing the loss of video bandwidth to the operating network.

6 is a flow chart of generating a service chain according to Embodiment 6 of the present disclosure. As shown in FIG. 6, the steps include:

Step S401: The service information collection server collects and processes the information reported by the SF.

Step S402: The service policy module collects an operation policy (for example, a minor performs URL filtering), and sends the operation policy to the service control module.

Step S403: The service control module receives the operation policy, matches the service identifier, and sends the service identifier to the service orchestration module (equivalent to the service orchestration function device 20).

Step S404: The service orchestration module determines a required value-added service node (for example, a TB, a Content Delivery Network (CDN), a Network Address Translation (NAT), etc. according to the service identifier.

Step S405: The service orchestration module sends a node information query message (equivalent to an information query request) to the service node information server (ie, the service information collection server).

Step S406: The service node information server sends a query response to the service orchestration module.

Step S407: If there is still a service node that does not complete the information query, step S405 and step S406 are repeated until all nodes are successfully acquired.

The query and response messages can be in DNS mode, the service orchestration module is used as the DNS client, the service node information server is used as the DNS server, and the keyword (similar to the URL) uses the "service type + service name".

Step S408: The service orchestration module acquires all service node information of the service chain, and generates a service chain.

Step S409: The service orchestration module sends the service identifier and the service chain information to the service forwarding layer.

In summary, the embodiments of the present disclosure have the following technical effects:

The method and system can automatically perform business chain orchestration, solve the problem of difficulty in orchestrating the value-added service nodes, and issue and analyze the business chain.

It will be understood by those skilled in the art that all or part of the steps of the foregoing embodiments may be implemented by a program to instruct related hardware, and the program may be stored in a computer readable storage medium, the storage. The medium can be a ROM/RAM, a magnetic disk, an optical disk, or the like. For example, an embodiment of the present disclosure also provides a non-transitory computer readable storage medium storing computer executable instructions arranged to perform the method of any of the above embodiments.

It will be understood by those skilled in the art that the method or strategy of the above embodiments may be implemented by any processor, and all or part of it may also be implemented by using one or more processors. For example, an embodiment of the present disclosure further provides a schematic structural diagram of an electronic device. Referring to FIG. 7, the electronic device includes:

At least one processor 70, which is exemplified by a processor 70 in FIG. 7; and a memory 71, may further include a communication interface 72 and a bus 73. The processor 70, the communication interface 72, and the memory 71 can complete communication with each other through the bus 73. Communication interface 72 can be used for information transfer. Processor 70 can invoke logic instructions in memory 71 to perform the methods of the above-described embodiments.

In addition, the logic instructions in the memory 71 described above may be implemented in the form of a software functional unit and sold or used as a stand-alone product, and may be stored in a computer readable storage medium.

The memory 71 is a computer readable storage medium, and can be used to store a software program, a computer executable program, a program instruction/module corresponding to the method in the embodiment of the present disclosure. The processor 70 executes the function application and the data processing by executing software programs, instructions, and modules stored in the memory 71, that is, implementing the service chain generation method in the above method embodiments.

The memory 71 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function; the storage data area may store data created according to usage of the terminal device, and the like. Further, the memory 71 may include a high speed random access memory, and may also include a nonvolatile memory.

The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product stored in a storage medium, including one or more instructions for causing a computer device (which may be a personal computer, a server, or a network) The device or the like) performs all or part of the steps of the method described in the embodiments of the present disclosure. The foregoing storage medium may be a non-transitory storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like. A medium that can store program code, or a transitory storage medium.

While the present disclosure has been described in detail above, the present disclosure is not limited thereto, and various modifications may be made by those skilled in the art in accordance with the embodiments of the present disclosure. Therefore, modifications made in accordance with the embodiments of the present disclosure are to be understood as falling within the scope of the present disclosure.

Industrial applicability

The service chain generation method and system provided by the application significantly reduce the complexity of the business chain orchestration, and can automatically complete the generation and matching of the operation strategy to the service chain.

Claims (13)

A method for generating a business chain, comprising: Determining a service node for implementing the operation policy according to an operation policy; A service chain for guiding service packet forwarding is generated by using service node information of the service node. The method of claim 1 wherein the operational strategy is from an operational platform; The method further includes: obtaining the service node information according to the service node used to implement the operation policy. The method of claim 2, wherein the determining the service node for implementing the operational policy comprises: Generating a service processing manner for implementing the operation policy according to the operation policy; Determining, according to the service processing manner of the operation policy, a service node that implements the service processing mode. The method according to claim 3, wherein the step of generating a service processing manner for implementing the operation policy comprises: And generating, according to the operation policy, a service identifier about the processing manner. The method according to claim 4, wherein the step of determining a service node implementing the service processing mode comprises: And obtaining, according to the service identifier, a value-added service related to the service identifier, and determining a service node name corresponding to the value-added service. The method of claim 5, wherein the step of acquiring service node information comprises: Transmitting, by the service information collection function device, an information query request including a service node name, and obtaining service node information of each service node that is returned by the service information collection function device; The service information collection function device collects and stores the service corresponding to each value-added service in advance. The service node information reported by the node. A business chain generation system comprising: a service policy control function device, configured to determine a service node for implementing the operation policy according to an operation policy; The service orchestration function device is configured to generate a service chain for guiding service packet forwarding by using service node information of the service node. The system of claim 7 wherein said operational strategy is from an operational platform; The service orchestration function device is further configured to: obtain the service node information according to the service node used to implement the operation policy. The system according to claim 8, wherein the service policy control function device is configured to generate a service processing manner for implementing the operation policy according to the operation policy, and perform service processing according to the implementation of the operation policy. In a manner, a service node that implements the service processing mode is determined. The system of claim 9, wherein the service policy control function device is configured to generate a service identity for the processing mode based on the operational policy. The method according to claim 10, wherein the service policy control function device is configured to obtain a value-added service related to the service identifier according to the service identifier, and determine a service node name corresponding to the value-added service. The system of claim 11 further comprising: The service information collection function device is configured to collect and store the service node information reported by the service node corresponding to each value-added service in advance, and query the service query request of each service node according to the service query request including the service node name of the service orchestration function device. The service node information is sent to the service orchestration function device. A non-transitory computer readable storage medium storing computer executable instructions arranged to perform the method of any of claims 1-6.

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