CN109921940A - System and method based on the offline layout processing of SDWAN Scene realization network service - Google Patents
System and method based on the offline layout processing of SDWAN Scene realization network service Download PDFInfo
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Abstract
The present invention relates to a kind of systems based on the offline layout processing of SDWAN Scene realization network service, including offline orchestration layer, are connected respectively with north orientation application layer and MD-SAL layers；The offline orchestration layer includes: offline cradle, is connected with the cpe device, for dispatching online cpe device, and configuration distributing is carried out to it, the processing that configuration synchronizes, abnormality processing and exception information report；Database framework is connected with the offline cradle and cpe device, information, status information and other ephemeral datas when for storing configuration information, the operation of all cpe devices.The invention further relates to a kind of methods for realizing the offline layout processing of the network service based on SDWAN scene.Using the system and method for the invention, layout can be made to stablize, shield dependence of the network application to cpe device presence, accomplish to be pre-configured with, the function of online layout；By database manipulation, realizes the seamless replacement of cpe device, configure the function of re-issuing.
Description
Technical field
The present invention relates to wide area network fields more particularly to the offline layout field of SDN controller, in particular to one kind to be based on
The system and method for the offline layout processing of SDWAN Scene realization network service.
Background technique
The full name of SDN standard is " Software Defined Networking ", i.e. software defined network, is had three big
Feature: Network Programmable, forwarding are separated with control and centerized fusion.In its framework, network be divided into application, control and
Three layers of forwarding, forwarding device provides programming interface (SB API) for controller, and controller provides programming interface (NB for application
API), the behavior of forwarding device can neatly be defined by writing network application.
SDWAN is by a kind of service formed in SDN technical application to wide area network scene, and this service is wide for connecting
The enterprise network of wealthy geographic range, branch and data center including enterprise, current application scenarios can be summarized as three
Class: enterprise's interconnection, data center's interconnection and the interconnection of cloud net.Under SDWAN scene, cpe device and controller are typically distributed about difference
Wide area network among, due to the unstability of network connection, will lead to cpe device and controller can not establish prolonged stabilization
Connection, this causes using that can not carry out the reliable layout of long-time to CPE, and the demand of offline layout becomes urgent and necessary.
Summary of the invention
The purpose of the present invention is overcoming the above-mentioned prior art, provide that a kind of to meet high reliability, layout steady
Fixed system and method easily to operate based on the offline layout processing of SDWAN Scene realization network service.
To achieve the goals above, the system of the invention based on the offline layout processing of SDWAN Scene realization network service
And method is as follows:
The system based on the offline layout processing of SDWAN Scene realization network service, is mainly characterized by, the system
Include:
Offline orchestration layer is connected with north orientation application layer and MD-SAL layers respectively；
The offline orchestration layer includes:
Offline cradle is connected with the cpe device, matches for dispatching online cpe device, and to it
It sets and issues, configures the processing that synchronous, abnormality processing and exception information report；
Database framework is connected with the offline cradle and cpe device, for storing all cpe devices
Information, status information and other ephemeral datas when configuration information, operation.
Preferably, the offline cradle and database framework are together with other cores Bundle of SDN controller
Starting.
Preferably, the database framework includes candidate data library and operation data library, the candidate data library is used
Network application request data after storing newest conversion, the operation data library are used to store the fortune of current cpe device
Row data；Each cpe device corresponds to unique candidate data library and unique operation data library；The candidate data library and fortune
Row database respectively corresponds multiple collection of services；The collection of services corresponds to multiple business list items.
Preferably, the collection of services includes Tenant, VPN, BGP and QoS.
The method for realizing the offline layout processing of the network service based on SDWAN scene based on above system, it is main special
Point, which is that the method includes network application, carries out offline layout to SDN controller, the method the following steps are included:
(1) network application sends the configuring request of cpe device；
(2) the configuring request information is carried out corresponding format conversion and handed over to database framework processing by controller, is returned
Response to the request；
(3) offline cradle receives the online event notice of cpe device, saves the online state of equipment and distributes a job
Person's thread carries out layout management to it；
(4) worker thread described in receives the rpc-reply response of prompt mistake, and before all are not submitted
Configuration carries out rollback.
Preferably, the step (4) specifically includes the following steps:
(4.1) whether the judgement worker thread receives the rpc-reply response of prompt mistake, if it is, after
Continuous step (4.2)；Otherwise, continue step (4.3)；
(4.2) rollback is carried out to all configurations that do not submit before, while the information of specific format to network is reported to answer
With；
(4.3) step (2) are retried with preset times, until cpe device correctly responds.
It is executed preferably, the step (4) further includes the steps that worker thread terminates, the step (4) is specific
The following steps are included:
(a4.1) judge whether that the lower limit for receiving cpe device is requested, if it is, the worker thread termination is held
Row；Otherwise, continue step (a4.2)；
(a4.2) whether the judgement worker thread receives the rpc-reply response of prompt mistake, if it is, after
Continuous step (a 4.3)；Otherwise, continue step (a4.4)；
(a4.3) whether the rpc-reply response that the judgement worker thread receives prompts configuration error, if so,
Then the worker thread, which terminates, executes；Otherwise, rollback is carried out to all configurations that do not submit before, while reported specific
The information of format is to network application；
(a4.4) step (2) are retried, whether the number for judging that time-out retries has reached maximum value, if it is, described
Worker thread, which terminates, to be executed；Otherwise, continue to retry step (2), until cpe device correctly responds.
Preferably, the method further includes that offline cradle passes through Master-Worker threading model to online
Cpe device carries out the step of layout management, specifically includes the following steps:
(1-1) starts Master thread, and screening has the candidate data library of configuration information, and determines that online its is corresponding
Cpe device；
(1-2) person of sharing out the work thread carries out layout management to the cpe device.
Preferably, the method and step (1-1) the following steps are included:
(1-1.1) establishes the databases mirror image pre-established, establishes worker thread pond, and carry out thread resources
Initialize installation；
(1-1.2) polling data library mirror image；
(1-1.3) judges whether candidate data library has configuration information, if it is, continuing step (1-1.4)；Otherwise, after
Continuous step (1-1.2)；
(1-1.4) judges whether its corresponding cpe device is online, if it is, the person's of sharing out the work thread compiles it
Comb reason；Otherwise, continue step (1-1.2).
Preferably, the step (1-2) the following steps are included:
(1-2.1) is obtained and is lockked the session of cpe device；
(1-2.2) successively calls corresponding service code to carry out issuing behaviour by fully synchronized mode according to work flow
Make, judges whether rpc-reply response is correct, if it is, carrying out next rpc request；Otherwise, into abnormality processing stream
Journey；
Business list item is transferred to operation data library from candidate data library by (1-2.3), discharges the session lock of cpe device, knot
Beam worker thread.
Using the system and method for the invention based on the offline layout processing of SDWAN Scene realization network service, offline
The function that layout is realized is not only to carry out stablizing layout to it when cpe device is offline, and needs to realize to cpe device
Configuration issues in advance, the function of online layout, while the seamless replacement that additional realization configures cpe device.Shielding network is answered
With the dependence to cpe device presence, so that accomplishing to issue the pre- of configuration when cpe device is offline, waiting facilities are online
It synchronizes afterwards and issues all configurations.By using offline arranging system, following technical effect can achieve: stablizing layout: shielding
Dependence of the network application to cpe device presence, accomplishes to be pre-configured with, the function of online layout；Configuration re-issues: passing through
Database manipulation realizes the seamless replacement of cpe device, configures the function of re-issuing；It is smooth to expand: using Development of Modular
Mode, increase business only need to add the service code of response, change business dependence, elastic increase business, smooth upgrade
Business；High reliability: offline cradle and database framework separately design, the strong dependence between business, increase and are
The reliability of system.
Detailed description of the invention
Fig. 1 is the SDN controller of the system of the invention based on the offline layout processing of SDWAN Scene realization network service
Structural schematic diagram.
Fig. 2 is the database framework of the system of the invention based on the offline layout processing of SDWAN Scene realization network service
Structural schematic diagram.
Fig. 3 is the method for the offline layout processing of the network service of realization of the invention based on SDWAN scene to controller
Carry out the flow diagram of offline layout.
Fig. 4 is the offline layout of the method for the offline layout processing of the network service of realization of the invention based on SDWAN scene
The flow diagram of frame.
Specific embodiment
It is further to carry out combined with specific embodiments below in order to more clearly describe technology contents of the invention
Description.
Of the invention is somebody's turn to do the system based on the offline layout processing of SDWAN Scene realization network service, including:
Offline orchestration layer is connected with north orientation application layer and MD-SAL layers respectively；
The offline orchestration layer includes:
Offline cradle is connected with the cpe device, matches for dispatching online cpe device, and to it
It sets and issues, configures the processing that synchronous, abnormality processing and exception information report；
Database framework is connected with the offline cradle and cpe device, for storing all cpe devices
Information, status information and other ephemeral datas when configuration information, operation.
As the preferred embodiment of the present invention, the offline cradle and database framework and SDN controller
Other cores Bundle starts together.
As the preferred embodiment of the present invention, the database framework includes candidate data library and operation data library,
The candidate data library is for storing the network application request data after newest conversion, and the operation data library is for depositing
Put the operation data of current cpe device；Each cpe device corresponds to unique candidate data library and unique operation data library；Institute
The candidate data library and operation data library stated respectively correspond multiple collection of services；The collection of services corresponds to multiple traffic tables
?.
As the preferred embodiment of the present invention, the collection of services includes Tenant, VPN, BGP and QoS.
The method for realizing the offline layout processing of the network service based on SDWAN scene based on above system, it is main special
Point, which is that the method includes network application, carries out offline layout to SDN controller, the method the following steps are included:
(1) network application sends the configuring request of cpe device；
(2) the configuring request information is carried out corresponding format conversion and handed over to database framework processing by controller, is returned
Response to the request；
(3) offline cradle receives the online event notice of cpe device, saves the online state of equipment and distributes a job
Person's thread carries out layout management to it；
(4) worker thread described in receives the rpc-reply response of prompt mistake, and before all are not submitted
Configuration carries out rollback；
(4.1) whether the judgement worker thread receives the rpc-reply response of prompt mistake, if it is, after
Continuous step (4.2)；Otherwise, continue step (4.3)；
(4.2) rollback is carried out to all configurations that do not submit before, while the information of specific format to network is reported to answer
With；
(4.3) step (2) are retried with preset times, until cpe device correctly responds；
(a4.1) judge whether that the lower limit for receiving cpe device is requested, if it is, the worker thread termination is held
Row；Otherwise, continue step (a4.2)；
(a4.2) whether the judgement worker thread receives the rpc-reply response of prompt mistake, if it is, after
Continuous step (a 4.3)；Otherwise, continue step (a4.4)；
(a4.3) whether the rpc-reply response that the judgement worker thread receives prompts configuration error, if so,
Then the worker thread, which terminates, executes；Otherwise, rollback is carried out to all configurations that do not submit before, while reported specific
The information of format is to network application；
(a4.4) step (2) are retried, whether the number for judging that time-out retries has reached maximum value, if it is, described
Worker thread, which terminates, to be executed；Otherwise, continue to retry step (2), until cpe device correctly responds.
Preferably, the method further includes that offline cradle passes through Master-Worker threading model to online CPE
Equipment carries out the step of layout management, specifically includes the following steps:
(1-1) starts Master thread, and screening has the candidate data library of configuration information, and determines that online its is corresponding
Cpe device；
(1-1.1) establishes the databases mirror image pre-established, establishes worker thread pond, and carry out thread resources
Initialize installation；
(1-1.2) polling data library mirror image；
(1-1.3) judges whether candidate data library has configuration information, if it is, continuing step (1-1.4)；Otherwise, after
Continuous step (1-1.2)；
(1-1.4) judges whether its corresponding cpe device is online, if it is, the person's of sharing out the work thread compiles it
Comb reason；Otherwise, continue step (1-1.2)；
(1-2) person of sharing out the work thread carries out layout management to the cpe device；
(1-2.1) is obtained and is lockked the session of cpe device；
(1-2.2) successively calls corresponding service code to carry out issuing behaviour by fully synchronized mode according to work flow
Make, judges whether rpc-reply response is correct, if it is, carrying out next rpc request；Otherwise, into abnormality processing stream
Journey；
Business list item is transferred to operation data library from candidate data library by (1-2.3), discharges the session lock of cpe device, knot
Beam worker thread.
In a specific embodiment of the invention, the present invention makes full use of the architecture of SDN controller, in north orientation application layer
And offline orchestration layer is added between MD-SAL layers, as shown in Figure 1.SDN controller is using OSGi framework agreement come management module
Life cycle, OSGi are the software architectures based on plug-in type, include OSGi framework and plug-in unit.This plug-in unit is referred to as
Bundle, Bundle dynamically can be loaded and be unloaded, dynamic update, and by using OSGi, Java application can be realized
Good modularization.OSGi framework agreement provides the Java framework of a general safety, deployment that Bundle is served by,
Extension all relies on the frame.OF Arrange Framework in Fig. 1 is offline orchestration layer, NB (Consumer) API
For north orientation application layer, MD-SAL is MD-SAL layers.
In claims of the present invention and specification, cpe device is client gateway equipment；Candidate database is
Candidate data library；Running database is runtime data library；SDWAN scene refers to that SDN technology is applied to one kind of wide area network
Scene；MD-SAL layers are the service abstraction layers based on model-driven, are a hierarchical structures of controller；Rpc-reply response
Refer to the response of remote procedure call；Worker thread refers to worker thread；Master-Worker threading model is a kind of
Threading model, Master thread represent listener thread, and Worker thread represents worker thread, and Master thread can be with
Multiple Worker threads are enabled simultaneously to complete specific arranging service work；The session of cpe device represents session, represents
A connection between controller and cpe device.
In specification and Figure of description of the invention, APPS refers to network application；NB (Consumer) API refers to that north orientation connects
Mouthful, generally use HTTP Restful style；OF Arrange Framework refers to offline cradle；DB Framework refers to
Database framework；MD-SAL refers to the service abstraction layer based on model-driven；Distributed CORE refers to distributed kernel；SB
(Providers&Protocols) API Guide to interface, adoptable south orientation agreement include SNMP, Netconf, BGP-LS etc.；
Net Element (CPE) refers to network element, client gateway equipment.CPE-DB1 refers to the corresponding database of specific cpe device, including
Candidate and Running database；DB1-Coll1 refers to the corresponding business list item of certain database；Collection-Doc1
Refer to that the corresponding specific business datum of specific transactions list item, business datum exist in the form of document.APP refers to network application；
Controller refers to controller；Request is north orientation request, generallys use HTTP Restful interface；Response is north orientation
The response of request；Online refers to that equipment is online；Rpc is remote procedure call；Rpc-reply is the response of remote procedure call.
Offline orchestration layer is mainly made of offline cradle and database framework two parts, they are as SDN controller
Bundle exist, start with other cores Bundle of controller.Offline cradle utilizes Master-Worker line
Each online cpe device of journey module scheduling carries out configuration distributing to it, configures synchronous, abnormality processing and exception information
It reports；Database framework is responsible for storing the configuration information of all cpe devices, and information when operation, status information and others are faced
When data.
Database framework is made of following three levels, as shown in Figure 2
Each cpe device uniquely corresponds to a Candidate and Running database, for example the type of cpe device is
VCPE, SN (sequence number) are CERTUSNET2GW0001, then its unique corresponding database-name are as follows: Candidate-
VCPE-CERTUSNET2GW0001 and Running-VCPE-CERTUSNET2GW0001；
Multiple collection of services are corresponded in each database (such as Candidate-VCPE-CERTUSNET2GW0001),
Under SDWAN scene, at least there are the collection of services such as Tenant, VPN, BGP and QoS.
Each collection of services corresponds to multiple business list items, by taking Tenant business as an example, may deposit on the same cpe device
A business list item under Tenant collection of services is shown as in multiple vrf, each vrf.
The data of network application request, can be stored into Candidate database after conversion, it should be noted is that,
The data before covering are submitted in the repetition of identical services, so that is stored in Candidate database is newest match forever
Confidence breath.
After cpe device is online, offline cradle can successively issue configuration according to specific work flow, under each business
After sending out successfully, the business datum of the business can be all transferred in Running database from Candidate database.Running
What database was stored is the operation data of current cpe device.When necessary, it needs after equipment is online, the operation of active synchronization equipment
When data into Running database, this work is completed by offline cradle.
From Candidate to Running, issuing in advance to cpe device configuration, online layout are realized.
It can not restore if there is hardware fault unfortunately has occurred in a cpe device, or be shared between more cpe devices
Configuration, the solution of offline arranging system is that Running database is transferred to Candidate database, later by offline
Cradle re-issues configuration.It is worth noting that, cpe device must be in down status always during data transfer
To guarantee data consistency.
From Running to Candidate, the seamless replacement and configuration realized to cpe device configuration is shared.
When SDN controller starts, offline cradle Bundle and database framework Bundle is loaded, at this point, network is answered
With that can carry out offline layout to controller, detailed process is as shown in Figure 3:
1, network application sends the configuring request of cpe device by NB api interface, such as issues the tunnel VxLAN；
2, after controller receives request, database framework processing is given after its solicited message is carried out corresponding format conversion
Afterwards, the response to the request is returned immediately；
3, after cpe device is online, offline cradle receives online event notice, saves the online state of equipment and distributes one
A Worker thread carries out layout management to it.For the process of layout by the way of fully synchronized, i.e. Worker thread passes through SB
API sends a rpc and requests to cpe device, after cpe device response, retransmits next rpc request；
If 4, Worker thread receives the rpc-reply response of a prompt mistake, before all can not submitted
Configuration carries out rollback, while reporting the information of a specific format to network application；
If 5, Worker thread does not receive rpc-reply response yet in time-out time, which will be carried out specific
Number retries, until cpe device correctly responds；
6, in a case where, Worker thread will be terminated and be executed:
A, the number that time-out retries has reached maximum value；
B, the offline event of equipment is received；
C, the rpc-reply of response prompts configuration error.
The core of offline cradle is to use Master-Worker threading model to realize to each online CPE
The layout management of equipment is realized shown in schematic diagram 4.
When offline cradle starts with SDN controller, Master thread can be started first, workflow is as follows:
1, a memory mirror of database is established, and is in due course and refreshes this part of mirror image.Establish memory mirror
Purpose is to avoid database read operation too much, reduces unnecessary communication delay, improves the working efficiency of Master thread；
2, Worker thread pool is established, and carries out the Initialize installation of thread resources；
3, polling data library mirror image filters out all Candidate databases of configuration information；
4, there is the Candidate database of configuration information for each, judge whether its corresponding cpe device is online.
If online, one Worker thread of distribution carries out layout management to it；
5, the operation for constantly carrying out 3-4, until controller stops Master thread.
Worker thread is only responsible for handling the layout management of corresponding cpe device in its complete life cycle, other
Cpe device is by other corresponding Worker thread managements.Its workflow is as follows:
1, the session of cpe device is obtained, and its session is lockked.The purpose of latching is not allow other composers
Configuration is issued to it, guarantees the data consistency between cpe device and offline arranging system；
2, corresponding service code is successively called to carry out issuing operation according to work flow.Action type has Insert,
Delete and Update issues process by the way of fully synchronized, i.e. the corresponding rpc-reply response of a rpc request,
After confirming that rpc-reply response is correct, next rpc request is just carried out.If rpc-reply returns to mistake, enter exception
Manage process；
3, after the completion of sending down service, business list item is transferred to Running database from Candidate database；
4, the session lock for discharging cpe device, terminates Worker thread.
Abnormality processing specifically includes that the offline exception of CPE, and time-out is abnormal, abnormal interruption and arrangement abnormalities.Process flow is such as
Under:
A, the offline exception of CPE.Thread resources recycling is carried out immediately, and related data is restored, and Worker thread is terminated；
B, time-out is abnormal.Abnormal time-out is usually when time-out exception occurs, to need as caused by the unstability of network communication
Business is issued again, the number retried is defaulted as 4, if reaching the maximum times retried does not still receive rpc-
Reply response then actively closes session, and Resource recovery restores data, terminates Worker thread；
C, abnormal interruption.When sending down service need data be not yet ready at that time, abnormal interruption will be triggered, handle
Process is then to be immediately finished Worker thread, and notify Master thread does not have to comprehend the CPE at a certain time interval to set
Standby layout demand；
D, arrangement abnormalities.Caused by cpe device, error message returns in rpc-reply message body, and type of error such as draws
With resource that is mistake or being not present.Process flow is to seal current business datum up for safekeeping immediately, is reported to network application specific
The alarm of format, notice Master thread mask close session to the layout demand of the cpe device, and data collection terminates
Worker thread.Network application needs to carry out the processing of next step after receiving alarm, this has had exceeded model of the invention
It encloses, repeats no more.
When arranging service, necessarily refer to the dependence between business, the parsing of dependence be related to business can it is correct under
Hair.For the service code of each business when generating, which the business for needing that it is specified to directly rely on has, these relationships constitute one
A complete dependency chain.Worker thread is in issuing service, it is necessary in strict accordance with the sequential organization business of dependency chain.
When offline arranging system starting, need actively to go to read the dependence of business in each service code.Business it
Between dependence have: Self, Import, Export and Unknown.Self represents business itself, and Import, which is represented, to be relied on,
Export representative is relied on and (does not have to the relationship temporarily), and Unknown represents unknown relation.
One dependency chain matrix example to letter is as follows:
The dependency chain matrix indicates: B2 relies on B1, and B3 relies on B2, and B4 relies on B3, and B5 relies on B4, and B6 relies on B5.Finally give birth to
At dependency chain are as follows: B1 <-B2 <-B3 <-B4 <-B5 <-B6.Worker thread is in arranging service, it is necessary to first layout B1 business,
Secondly layout B2 business, B3 business, B4 business, B5 business, last layout B6 business.
Consequence caused by Circular dependency is very serious, will lead to Worker thread ceaselessly those of in layout Circular dependency
Business and can not exit.When writing service code, usually since portfolio is big, dependence is complicated and leads to Circular dependency
Occur.Offline arranging system is when generating dependency chain, it is necessary to have the ability to detect the appearance of Circular dependency.
One direct circulation dependency chain matrix to letter is as follows:
The dependency chain matrix indicates: B2 relies on B1 and B3, and B3 relies on B2, and B4 relies on B3, and B5 relies on B4, and B6 relies on B5.
One Circular dependency occurs: B2 <-B3 <-B2.
Another is as follows to the indirect cyclic process dependence matrix of letter:
The dependency chain matrix indicates: B1 relies on B5, and B2 relies on B1, and B3 relies on B2, and B4 relies on B3, and B5 relies on B4, and B6 is relied on
B5。
Another Circular dependency occurs: B5 <-B1 <-B2 <-B3 <-B4 <-B5.
The algorithm of detection is extremely simple, when calculating the dependence of single business, if the business chain and quilt of its dependence
Occur identical business in the business chain of dependence, then determines Circular dependency occur.
In the example that direct circulation relies on, the dependence of B3 is calculated, relies on B2, while being relied on by B2；Indirect
In the example of Circular dependency, the dependence of B1 is calculated, relies on B5, while being relied on indirectly by B5.
Using the system and method for the invention based on the offline layout processing of SDWAN Scene realization network service, offline
The function that layout is realized is not only to carry out stablizing layout to it when cpe device is offline, and needs to realize to cpe device
Configuration issues in advance, the function of online layout, while the seamless replacement that additional realization configures cpe device.Shielding network is answered
With the dependence to cpe device presence, so that accomplishing to issue the pre- of configuration when cpe device is offline, waiting facilities are online
It synchronizes afterwards and issues all configurations.By using offline arranging system, following technical effect can achieve: stablizing layout: shielding
Dependence of the network application to cpe device presence, accomplishes to be pre-configured with, the function of online layout；Configuration re-issues: passing through
Database manipulation realizes the seamless replacement of cpe device, configures the function of re-issuing；It is smooth to expand: using Development of Modular
Mode, increase business only need to add the service code of response, change business dependence, elastic increase business, smooth upgrade
Business；High reliability: offline cradle and database framework separately design, the strong dependence between business, increase and are
The reliability of system.
In this description, the present invention is described with reference to its specific embodiment.But it is clear that can still make
Various modifications and alterations are without departing from the spirit and scope of the invention.Therefore, the description and the appended drawings should be considered as illustrative
And not restrictive.
Claims (10)
1. a kind of system based on the offline layout processing of SDWAN Scene realization network service, which is characterized in that the system packet
It includes:
Offline orchestration layer is connected with north orientation application layer and MD-SAL layers respectively；
The offline orchestration layer includes:
Offline cradle is connected with the cpe device, configures down for dispatching online cpe device, and to it
Hair, the processing that configuration synchronizes, abnormality processing and exception information report；
Database framework is connected with the offline cradle and cpe device, for storing the configuration of all cpe devices
Information, status information and other ephemeral datas when information, operation.
2. the system according to claim 1 based on the offline layout processing of SDWAN Scene realization network service, feature exist
In the offline cradle and database framework start together with other cores Bundle of SDN controller.
3. the system according to claim 1 based on the offline layout processing of SDWAN Scene realization network service, feature exist
In the database framework includes candidate data library and operation data library, and the candidate data library is newest for storing
Network application request data after conversion, the operation data library are used to store the operation data of current cpe device；Each
Cpe device corresponds to unique candidate data library and unique operation data library；The candidate data library and operation data library point
Multiple collection of services are not corresponded to；The collection of services corresponds to multiple business list items.
4. the system according to claim 3 based on the offline layout processing of SDWAN Scene realization network service, feature exist
In the collection of services includes Tenant, VPN, BGP and QoS.
5. a kind of side for realizing the offline layout processing of the network service based on SDWAN scene based on system described in claim 1
Method, which is characterized in that the method includes network application to the offline layout of SDN controller progress, specifically includes the following steps:
(1) network application sends the configuring request of cpe device；
(2) the configuring request information is carried out corresponding format conversion and handed over to database framework processing by controller, is returned to this
The response of request；
(3) offline cradle receives the online event notice of cpe device, saves the online state of equipment and distributes worker's line
Journey carries out layout management to it；
(4) worker thread described in receives the rpc-reply response of prompt mistake, and to all configurations that do not submit before
Carry out rollback.
6. the method for the offline layout processing of network service of the realization according to claim 5 based on SDWAN scene, feature
Be, the step (4) specifically includes the following steps:
(4.1) whether the judgement worker thread receives the rpc-reply response of prompt mistake, if it is, continuing to walk
Suddenly (4.2)；Otherwise, continue step (4.3)；
(4.2) rollback is carried out to all configurations that do not submit before, while reports the information of specific format to network application；
(4.3) step (2) are retried with preset times, until cpe device correctly responds.
7. the method for the offline layout processing of network service of the realization according to claim 6 based on SDWAN scene, feature
It is, the step (4) further includes the steps that worker thread terminates and execute that the step (4) specifically includes following step
It is rapid:
(a4.1) judge whether that the lower limit for receiving cpe device is requested, executed if it is, the worker thread terminates；It is no
Then, continue step (a4.2)；
(a4.2) whether the judgement worker thread receives the rpc-reply response of prompt mistake, if it is, continuing to walk
Suddenly (a 4.3)；Otherwise, continue step (a4.4)；
(a4.3) whether the rpc-reply response that the judgement worker thread receives prompts configuration error, if it is, institute
The worker thread stated, which terminates, to be executed；Otherwise, rollback is carried out to all configurations that do not submit before, while reports specific format
Information to network application；
(a4.4) step (2) are retried, whether the number for judging that time-out retries has reached maximum value, if it is, the work
Person's Thread Termination executes；Otherwise, continue to retry step (2), until cpe device correctly responds.
8. the method for the offline layout processing of network service of the realization according to claim 5 based on SDWAN scene, feature
It is, the method further includes that offline cradle compiles online cpe device by Master-Worker threading model
The step of comb is managed, specifically includes the following steps:
(1-1) starts Master thread, and screening has the candidate data library of configuration information, and determines that its online corresponding CPE is set
It is standby；
(1-2) person of sharing out the work thread carries out layout management to the cpe device.
9. the method for the offline layout processing of network service of the realization according to claim 8 based on SDWAN scene, feature
Be, the method and step (1-1) the following steps are included:
(1-1.1) establishes the databases mirror image pre-established, establishes worker thread pond, and carry out the initial of thread resources
Change setting；
(1-1.2) polling data library mirror image；
(1-1.3) judges whether candidate data library has configuration information, if it is, continuing step (1-1.4)；Otherwise, continue to walk
Suddenly (1-1.2)；
(1-1.4) judges whether its corresponding cpe device is online, if it is, the person's of sharing out the work thread carries out layout pipe to it
Reason；Otherwise, continue step (1-1.2).
10. the method for the offline layout processing of network service of the realization according to claim 8 based on SDWAN scene, special
Sign is, the step (1-2) the following steps are included:
(1-2.1) is obtained and is lockked the session of cpe device；
(1-2.2) successively calls corresponding service code to carry out issuing operation by fully synchronized mode according to work flow,
Judge whether rpc-reply response is correct, if it is, carrying out next rpc request；Otherwise, into abnormality processing process；
Business list item is transferred to operation data library from candidate data library by (1-2.3), is discharged the session lock of cpe device, is terminated work
Author's thread.
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