CN107872338A - NMS, business configuration, business configuration requesting method and device - Google Patents
NMS, business configuration, business configuration requesting method and device Download PDFInfo
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- CN107872338A CN107872338A CN201610852547.3A CN201610852547A CN107872338A CN 107872338 A CN107872338 A CN 107872338A CN 201610852547 A CN201610852547 A CN 201610852547A CN 107872338 A CN107872338 A CN 107872338A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0893—Assignment of logical groups to network elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/302—Route determination based on requested QoS
- H04L45/304—Route determination for signalling traffic
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Abstract
The invention provides NMS, business configuration, business configuration requesting method and device, the wherein business collocation method include：Path according to being carried in the business configuration request received determines that condition determines business configuration path, wherein, business configuration request is that operation layer is sent；Destination path in the business configuration path is sent to software defined network SDN equipment, wherein, the destination path is used to carry out business configuration to the SDN equipment.By the present invention, solve the problems, such as in correlation technique in correlation technique the problem of service deployment free degree low otherness deficiency, increase the otherness optimization customer service configuration experience of service deployment.
Description
Technical field
The present invention relates to data network communications field, particularly with regard to NMS, business configuration, business configuration
Requesting method and device.
Background technology
After software defined network (Software Defined Network, abbreviation SDN) appearance, teleservice is fast
Speed be deployed to one for SDN it is important the characteristics of, solve and use traditional NMS (Network
Management Stytem, abbreviation NMS) deployment business it is scattered with it is cumbersome.For conventional Layer 2 virtual private network L2VPN,
For Layer3 Virtual Private Network L3VPN business, user is typically only needed under specified services access point and a small amount of necessary parameter
It is dealt into SDN controllers, you can open a business automatically.SDN controllers can be while virtual private network business be configured certainly
Dynamic establishment multiprotocol label switching end to end (multi-protocol label switch, abbreviation MPLS) traffic engineering
(Traffic Engineering, abbreviation TE) dynamically or statically tunnel, wherein, the path in tunnel is calculated automatically by controller
And automatic deployment is to SDN equipment, as shown in Figure 1.Generally, controller can be given tacit consent to according to shortest path first, meter
Calculate an optimal path.But in the case where network is more complicated, tunnel path there may be multiple choices, particularly
Under the scene of configuration MSPW business, if user specifies multiple Service Switching Points, the problem of exchanging dot sequency is also related to,
Once business configuration is completed in this case, user checks that exchanging dot sequency or service path is unable to meet demand, will also weigh
New adjustment configuration.Correlation technique is calculated path by controller without the chance selected to user automatically, and this greatly weakens SDN
The advantage embodied under organizational structure, influences Consumer's Experience.
The problem of otherness deficiency low for the service deployment free degree in correlation technique, prior art do not propose also effectively
Solution.
The content of the invention
Object of the present invention is to provide NMS, business configuration, business configuration requesting method and device, solution
In correlation technique of having determined the problem of the service deployment free degree low otherness deficiency.
According to an aspect of the present invention, there is provided a kind of business collocation method, including：Please according to the business configuration received
The path of middle carrying is asked to determine that condition determines business configuration path, wherein, business configuration request is that operation layer is sent；Should
Destination path in business configuration path is sent to software defined network SDN equipment, wherein, the destination path is used for this
SDN equipment carries out business configuration.
Further, the destination path in the business configuration path is sent to SDN equipment and included by this：Match somebody with somebody from the business
One destination path of determination in path is put, wherein, the business configuration path includes mulitpath；The destination path is sent to
The SDN equipment.
Further, determine that the destination path includes from the business configuration path：RX path selection instruction, its
In, the routing instructions choose the destination path for instruction；The routing instructions are responded from the business configuration path
Select the destination path.
Further, the path carried in the business configuration request that the basis receives determines that condition determines business configuration path
Including：Judge whether to be configured with multi-segment pseudo-wires MSPW business；In the case where judging to be configured with the MSPW business, according to the road
Footpath determines that condition determines every pseudo-wire PW PW paths and traffic engineering tunnel path corresponding with the PW paths, wherein, the business configuration
Path includes：The PW paths and the traffic engineering tunnel path；A target PW path is determined from the PW paths, and from target PW roads
A target traffic engineering tunnel path is determined in traffic engineering tunnel path corresponding to footpath, wherein, by target PW paths and the target traffic engineering tunnel
Path is as the destination path in the business configuration path.
Further, it should determine that a target PW path included from the PW paths：It is being configured with the exchange of the MSPW business
In the case of point, a target PW path is determined from the PW paths according to the order of the exchange point.
Further, the order of the exchange point is determined by following steps：Judge whether to receive the friendship that the operation layer issues
Change dot sequency information；In the case where the judgment result is yes, the order indicated by the exchange dot sequency information is defined as the friendship
Change order a little；In the case where judged result is no, determined to exchange dot sequency according to shortest path condition.
Further, determining that condition determines that the business is matched somebody with somebody according to the path carried in the business configuration received request
Before putting path, this method also includes：Receive business configuration request；In response to business configuration request judge whether to need into
The precomputation operation in the row business configuration path；In the feelings for the precomputation operation for judging to carry out the business configuration path
Under condition, default path is determined according to implied terms set in advance, the default path is sent to SDN equipment；According to connecing
The path carried in the business configuration request received determines that condition determines that business configuration path includes：Judging that needs are somebody's turn to do
In the case of the precomputation operation in business configuration path, condition is determined according to the path carried in the business configuration request received
Determine business configuration path.
Further, the precomputation that should judge whether to need to carry out the business configuration path in response to business configuration request is grasped
Work includes：Judge that whether carrying the path in business configuration request determines condition；Carried in business configuration request
In the case that the path determines condition, judge to need the precomputation for carrying out the business configuration path to operate；Match somebody with somebody in the business
Put and do not carried in request in the case that the path determines condition, this for judging to carry out the business configuration path is estimated
Calculate operation.
Further, it should determine that the destination path included from the business configuration path：Determine that condition is in the path
In the case of minimum cost value condition, whole available service paths are obtained；A generation is determined from whole available service paths
Minimum service path is worth as the destination path；Or in the case of determining that condition is minimum hop count condition in the path, obtain
Take whole available service paths；Determine the minimum service path of a jumping figure value as the mesh from whole available service paths
Mark path；Or in the case of determining that condition is minimal time delay value condition in the path, obtain whole available service paths；It is complete from this
Determine the minimum service path of a time delay value as the destination path in portion available service path.
Further, the path determines that condition includes：Determine that the path that condition forms determines comprehensive bar by least two paths
Part, wherein, the path determines that condition determines respectively according to one of cost value, jumping figure value and time delay value.
Further, it should determine that the destination path included from the business configuration path：Comprehensive bar is determined in the path
Part determines condition and in the case that the second path determines condition including first path, obtains a plurality of available service path；Judging should
It whether there is in a plurality of available service path and meet that the first path determines the first object path of condition；It is somebody's turn to do judging to exist
In the case of first object path, judge in the first object path with the presence or absence of meeting that second path determines the second of condition
Destination path；In the case where judging to have second destination path, it is the destination path to determine second destination path；Or
Determine that integrated condition determines that condition, the second path determine that condition and the 3rd path determine condition group including first path in the path
In the case of, a plurality of available service path is obtained；Judge that a plurality of available service path whether there is and meet the first path
Determine the 3rd destination path of condition；In the case where judging to have the 3rd destination path, the 3rd destination path is judged
In with the presence or absence of meeting that second path determines the 4th destination path of condition；Judging the feelings in the presence of the 4th destination path
Under condition, judge in the 4th destination path with the presence or absence of meeting that the 3rd path determines the 5th destination path of condition；Judging
Go out in the case of the 5th destination path being present, it is the destination path to determine the 5th destination path.
Further, after a plurality of available service path is obtained, this method also includes：In a plurality of available service path
All it is unsatisfactory in the case that the path determines integrated condition, repeating following operation, until from a plurality of available service path
The destination path is determined, wherein, current path determines that the initial value of integrated condition determines integrated condition for the path：From this
Current path determines that the minimum path of priority is deleted in integrated condition determines condition, and the path after being changed determines synthesis
Condition；Judge to whether there is the target road that the path after meeting the change determines integrated condition in a plurality of available service path
Footpath；In the case of determining the destination path of integrated condition in the path for judging to be not present after meeting the change, this is changed
Path afterwards determines that the integrated condition path current as this determines integrated condition.
According to another aspect of the present invention, there is provided a kind of business configuration requesting method, including：To software defined network SDN
Controller, which is sent, carries the business configuration request that path determines condition, wherein, the business configuration asks to be used to indicate that the SDN is controlled
Device determines that condition determines business configuration path according to the path, and the destination path in the business configuration path is used for receiving this
The SDN equipment in business configuration path carries out business configuration.
Further, after carrying path is sent to the SDN controllers and determines the business configuration request of condition, this method
Also include：Transmitting path selection instruction, wherein, the routing instructions choose the destination path for instruction.
According to another aspect of the present invention, there is provided a kind of business configuration device, including：Determining module, for according to reception
To business configuration request in the path that carries determine that condition determines business configuration path, wherein, business configuration request is industry
It is engaged in what layer was sent；Sending module, for the destination path in the business configuration path to be sent into software defined network SDN
Equipment, wherein, the destination path is used to carry out business configuration to the SDN equipment.
According to another aspect of the present invention, there is provided a kind of business configuration request unit, including：Sending module, for soft
Part defines network SDN controllers and sends the business configuration request that carrying path determines condition, wherein, the business configuration asks to be used for
Indicate that the SDN controllers determine that condition determines business configuration path according to the path, the destination path in the business configuration path
For carrying out business configuration to the SDN equipment for receiving the business configuration path.
According to another aspect of the present invention, there is provided a kind of NMS, including operation layer, software defined network SDN
Controller and SDN equipment：The SDN controllers determine that condition is true according to the path carried in the business configuration request received
Determine business configuration path, wherein, business configuration request is that operation layer is sent；The SDN controllers are by the business configuration path
In destination path be sent to software defined network SDN equipment, wherein, the destination path be used for the SDN equipment
Carry out business configuration.
By the present invention, determine that condition determines that SDN equipment is entered using according to the path carried in money service request
The technical scheme in the business configuration path of row business configuration, solves the low otherness deficiency of the service deployment free degree in correlation technique
The problem of, increase the otherness optimization customer service configuration experience of service deployment.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the SDN organizational structure schematic diagram of correlation technique；
Fig. 2 is the flow chart of business collocation method according to embodiments of the present invention；
Fig. 3 is the structured flowchart of business configuration device according to embodiments of the present invention；
Fig. 4 is the structured flowchart of NMS according to embodiments of the present invention；
Fig. 5 is the flow chart of business collocation method according to the preferred embodiment of the invention；
Fig. 6 is the schematic diagram of business collocation method according to the preferred embodiment of the invention.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that do not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
A kind of NMS, business configuration, business configuration requesting method and device, figure are provided in the present embodiment
2 be the flow chart of business collocation method according to embodiments of the present invention, as shown in Fig. 2 the flow comprises the following steps：
Step S202, determine that condition determines business configuration road according to the path carried in the business configuration request received
Footpath, wherein, business configuration request is that operation layer is sent；
Step S204, the destination path in the business configuration path is sent to software defined network SDN equipment, its
In, the destination path is used to carry out business configuration to the SDN equipment.
The executive agent of above-mentioned business collocation method can be SDN controllers.Above-mentioned operation layer can be SDN controller pipes
Manage APP.Above-mentioned operation layer is sent by the northbound interface of the southbound interface of itself namely the SDN controllers to the SDN controllers
Business configuration is asked.
Alternatively, the above-mentioned destination path by the business configuration path is sent to software defined network SDN equipment
It can be one destination path of middle determination in the mulitpath included from the business configuration path, the destination path is sent to
The SDN equipment..
Alternatively, determine that the destination path can be RX path selection instruction from the business configuration path, its
In, the routing instructions choose the destination path for instruction；The routing instructions are responded from the business configuration path
Select the destination path.The routing instructions are issued by operation layer, a plurality of road that user feeds back according to the SDN received
Footpath, user is fed back to, records user's selection result and carry the selection result in above-mentioned routing instructions, issue
Give SDN controllers.
Preferably, the path carried in the business configuration request that the basis receives determines that condition determines business configuration path
Including：Judge whether to be configured with multi-segment pseudo-wires MSPW business；In the case where judging to be configured with the MSPW business, according to the road
Footpath determines that condition determines the PW paths of every pseudo-wire and traffic engineering tunnel path corresponding with the PW paths, wherein, the business configuration road
Footpath includes：The PW paths and the traffic engineering tunnel path；A target PW path is determined from the PW paths, and from target PW paths
A target traffic engineering tunnel path is determined in corresponding traffic engineering tunnel path, wherein, by target PW paths and the target traffic engineering tunnel road
Footpath is as the destination path in the business configuration path.
Alternatively, it should determine that a target PW path included from the PW paths：It is being configured with the exchange of the MSPW business
In the case of point, a target PW path is determined from the PW paths according to the order of the exchange point.Preferably, head is being determined
After node and tail node, in the case where more than one be present and exchange point, can not specify exchange dot sequency, allow SDN controllers
Possible all orders oneself are calculated, if head node is that A tail nodes B, EH are exchange point therein, then there is A-E-H-
Both PW optional paths of B, A-H-E-B.
Preferably, the order of the exchange point is determined by following steps：Judge whether to receive the friendship that the operation layer issues
Change dot sequency information；In the case where the judgment result is yes, the order indicated by the exchange dot sequency information is defined as the friendship
Change order a little；In the case where judged result is no, determined to exchange dot sequency according to shortest path condition.
Alternatively, determining that condition determines that the business is matched somebody with somebody according to the path carried in the business configuration received request
Before putting path, this method also includes：Receive business configuration request；In response to business configuration request judge whether to need into
The precomputation operation in the row business configuration path；In the feelings for the precomputation operation for judging to carry out the business configuration path
Under condition, default path is determined according to implied terms set in advance, the default path is sent to SDN equipment；According to connecing
The path carried in the business configuration request received determines that condition determines that business configuration path includes：Judging that needs are somebody's turn to do
In the case of the precomputation operation in business configuration path, condition is determined according to the path carried in the business configuration request received
Determine business configuration path.
Preferably, the precomputation that should judge whether to need to carry out the business configuration path in response to business configuration request is grasped
Work includes：Judge that whether carrying the path in business configuration request determines condition；Carried in business configuration request
In the case that the path determines condition, judge to need the precomputation for carrying out the business configuration path to operate；Match somebody with somebody in the business
Put and do not carried in request in the case that the path determines condition, this for judging to carry out the business configuration path is estimated
Calculate operation.
Alternatively, the path determines that condition can be minimum cost value condition, minimum hop count condition or minimal time delay value bar
Part.It should determine that the destination path included from the business configuration path：It is minimum cost value bar that condition is determined in the path
In the case of part, whole available service paths are obtained；The minimum industry of a cost value is determined from whole available service paths
Path be engaged in as the destination path；Or in the case of determining that condition is minimum hop count condition in the path, acquisition can all use industry
Business path；Determine the minimum service path of a jumping figure value as the destination path from whole available service paths；Or
In the case that the path determines that condition is minimal time delay value condition, whole available service paths are obtained；From whole available services
Determine the minimum service path of a time delay value as the destination path in path.
Further, the path determines that condition includes：Determine that the path that condition forms determines comprehensive bar by least two paths
Part, wherein, the path determines that condition determines respectively according to one of cost value, jumping figure value and time delay value.
Further, it should determine that the destination path included from the business configuration path：Comprehensive bar is determined in the path
Part determines condition and in the case that the second path determines condition including first path, obtains a plurality of available service path；Judging should
It whether there is in a plurality of available service path and meet that the first path determines the first object path of condition；It is somebody's turn to do judging to exist
In the case of first object path, judge in the first object path with the presence or absence of meeting that second path determines the second of condition
Destination path；In the case where judging to have second destination path, it is the destination path to determine second destination path；Or
Determine that integrated condition determines that condition, the second path determine that condition and the 3rd path determine condition group including first path in the path
In the case of, a plurality of available service path is obtained；Judge that a plurality of available service path whether there is and meet the first path
Determine the 3rd destination path of condition；In the case where judging to have the 3rd destination path, the 3rd destination path is judged
In with the presence or absence of meeting that second path determines the 4th destination path of condition；Judging the feelings in the presence of the 4th destination path
Under condition, judge in the 4th destination path with the presence or absence of meeting that the 3rd path determines the 5th destination path of condition；Judging
Go out in the case of the 5th destination path being present, it is the destination path to determine the 5th destination path.
Further, after a plurality of available service path is obtained, this method also includes：In a plurality of available service path
All it is unsatisfactory in the case that the path determines integrated condition, repeating following operation, until from a plurality of available service path
The destination path is determined, wherein, current path determines that the initial value of integrated condition determines integrated condition for the path：From this
Current path determines that the minimum path of priority is deleted in integrated condition determines condition, and the path after being changed determines synthesis
Condition；Judge to whether there is the target road that the path after meeting the change determines integrated condition in a plurality of available service path
Footpath；In the case of determining the destination path of integrated condition in the path for judging to be not present after meeting the change, this is changed
Path afterwards determines that the integrated condition path current as this determines integrated condition.
Business configuration requesting method according to another embodiment of the present invention, business configuration requesting method comprise the following steps：
Sent to software defined network SDN controllers and carry the business configuration request that path determines condition, wherein, business configuration request
For indicating that the SDN controllers determine that condition determines business configuration path according to the path, the target in the business configuration path
Path is used to carry out business configuration to the SDN equipment for receiving the business configuration path.
Further, after carrying path is sent to the SDN controllers and determines the business configuration request of condition, this method
Also include：Transmitting path selection instruction, wherein, the routing instructions choose the destination path for instruction.
Fig. 3 is the structured flowchart of business configuration device according to embodiments of the present invention, as shown in figure 3, the device includes：
Determining module 32, for determining that condition determines that business is matched somebody with somebody according to the path carried in the business configuration request received
Path is put, wherein, business configuration request is that operation layer is sent；
Sending module 34, for the destination path in the business configuration path to be sent into software defined network SDN
Equipment, wherein, the destination path is used to carry out business configuration to the SDN equipment.
Business configuration request unit according to another embodiment of the present invention, business configuration request unit include：Sending module,
For sending the business configuration request for carrying path and determining condition to software defined network SDN controllers, wherein, the business configuration
Ask to be used to indicate that the SDN controllers determine that condition determines business configuration path according to the path, in the business configuration path
Destination path is used to carry out business configuration to the SDN equipment for receiving the business configuration path.
Fig. 4 is the structured flowchart of NMS according to embodiments of the present invention, as shown in figure 4, the NMS
System includes operation layer 42, software defined network SDN controllers 44 and SDN equipment 46：The SDN controllers are according to receiving
The path carried in business configuration request determines that condition determines business configuration path, wherein, business configuration requested service layer hair
Send；The SDN controllers send the business configuration path to SDN equipment, wherein, the business configuration path is used for this
SDN equipment carries out business configuration.
The present invention is further described with reference to specific embodiment.
It is estimated can to carry out path before deployment teleservice to SDN controllers to the business that will be configured by user
Calculate.SDN controllers receive the request of configuration service, determine whether to need precomputation, if it is desired, then calculate it is all can
Qualified optimal path, is recommended user by the service path of energy, and the optimal path condition specified according to user, and
And other available paths, if under other conditions optimal, it can also label, user can be given tacit consent to using the road recommended
Footpath, selection can also be compared and use final path of other available service paths as service deployment.Precomputation function conduct
Optional function, and optimal path condition can be customized, significantly increase under SDN organizational structures, quickly activate the service
Otherness under flexibility and different application scene.So-called precomputation refers to that the SDN controller systems are true according to path
Fixed condition calculates business configuration path.
Therefore, the present invention provides a kind of method and system for realizing service path precomputation based on SDN.This system is not
Under the flow for changing original rapid deployment SDN business, increase service path precomputation function., not only can be with MSPW scenes
Precomputation tunnel path, dot sequency is exchanged it is also contemplated that calculating, that is, PW optional path.SDN controllers return all available
Service path, and according to user-defined condition, recommend qualified optimal path to user.User can give tacit consent to use
The optimal path that SDN controllers are recommended, can also select the final road for using other optional service paths as service deployment
Footpath.The method and system considerably increase the flexibility of deployment SDN teleservices, but not increase user use it is negative
Load.
A kind of system for realizing service path precomputation based on SDN of the present invention includes as follows：
SDN:Compared with traditional network, interchanger or router based on SDN only exist forwarding surface (number
According to face) logic, mainly according to the logic of controller complete forward, pass through Netconf agreements, simple network management SNMP association
View or Telnet Telnet protocol realizations cooperate with SDN controller intercommunications with described in this method, as shown in Figure 2.
SDN controller systems：SDN controllers pass through Netconf agreements, simple network management snmp protocol or Telnet
Telnet protocol realizations and SDN device intercommunicating.User by SDN controller managements APP or other business configuration systems,
Teleservice is configured, SDN controllers are responsible for receiving service configuration information, and calculate business using path-calculating element PCE
Tunnel path, under MSPW scenes, it is also necessary to calculate PW path.According to certain condition, qualified path is identified
Condition, namely customized optimal path (hereinafter referred optimal path) are determined, and, is returned with other all available paths together
SDN controller management APP are returned to, are selected for user.SDN controllers can issue the path that user selects as final path
To SDN equipment.SDN controllers include service deployment module and precalculation module.
Operation layer, can be SDN controller managements APP：Realized based on WEB, there is provided user configuration interface, pass through application layer
Agreement (such as declarative state transmits REST interfaces etc.) calls the northbound interface that SDN controllers provide, to issue user configuration
Business information, receive the path that SDN controller precomputations are presented for user's selection, and the configuration result that record traffic is final.
Above-mentioned operation layer also includes other business configuration systems, and other business configuration systems have the function of business configuration, use SDN
The northbound interface configuration service that controller provides.
SDN controller systems of the present invention are asked by receiving SDN controller managements APP business configuration, and root
Precomputation is carried out to service path according to business configuration request, the service configuration information required for it, can also be matched somebody with somebody by other business
System offer is put, the system has the function of service parameter input configuration, therefore the subsystem is optional.
A kind of method for realizing service path precomputation based on SDN of the present invention includes as follows：
The first step：Business configuration module receives user configuration service request and analyses whether to need to carry out precomputation；
User passes through SDN controller managements APP or other business configuration systems, configuration service information, input selection industry
Business access-in point information and necessary service parameter, if MSPW scenes, it is also necessary to select Service Switching Point information.Whether need
Precomputation is carried out, user can be with unrestricted choice.User wishes that SDN controllers recommend the condition of optimal path, can be by user
Specify and the SDN controllers are sent to by business configuration request.Meet service bandwidth and other business configurations ginseng preferential
, can also be including but not limited to following condition on the premise of number：
(1) the minimum tunnel path of cost (cost) value is recommended as optimal path
(2) the minimum tunnel path of metric (hop count) value is recommended as optimal path
(3) the minimum tunnel path of delay (time delay) value is recommended as optimal path
(4) using cost, metric, delay as integrated condition, unified consideration, the tunnel of combination condition customized is met
Path is recommended as optimal path
The business configuration module of SDN controllers receives business configuration request, according to whether carrying optimal path condition point
Whether analysis needs to carry out precomputation, if it is desired, sends business configuration request and arrives service path precalculation module.
Second step：Business for needing progress precomputation, it is contemplated that calculate module and be directed to the business information configured in the first step
Tunnel path precomputation is carried out, if MSPW scenes, it is also necessary to calculate PW available path, and the bar specified according to user
Part, identify qualified optimal path and return to management system APP for user's selection.
Service path precalculation module receive precomputation instruction, the business for needing precomputation, judge whether be
MSPW business.If MSPW business, head node, tail node, point exhaustive computations in the way of various permutation and combination are exchanged
Go out all available paths of PW, available tunnel path corresponding to PW can be used for each group by then calculating again.For all
Available PW paths, the access-in point information end to end that can be inputted according to user, and MSPW exchange point, pass through according to from head node
Point is exchanged to the physical link shortest path condition of tail node, finds out optimal PW paths.Calculating the available tunnel roads of every PW
During footpath, PCE according to but be not limited to following method, calculate optimal tunnel path and be identified as recommendation paths：
(1) according to tunnel path cost (cost) value minimum recommended optimal path
(2) according to tunnel path metric (hop count) value minimum recommended optimal path
(3) according to tunnel path delay (time delay) minimum recommended optimal path
(4) using cost, metric, delay as integrated condition, unified consideration, the tunnel of combination condition customized is met
Path is recommended as optimal path
If not MSPW business, PCE directly calculates all available paths in tunnel, and according to the condition in step 2,
Identify optimal recommendation paths.Precalculation module returns to precomputation result to SDN controller management APP, is selected for user.
3rd step：Service deployment module, the path for receiving user's selection are deployed to SDN as final path and set
It is standby, and return to final deployment result and record and present to management system APP.
Service deployment module receives the service path of user's selection, and SDN equipment is issued to as final path,
Configured using path computation element communication protocol PCEP and tunnel path is configured, made for the configuration of other business information
Configured with netconf, and the result that final service is disposed returns to NMS APP and records and present.
Compared with prior art, the present invention provides a kind of method for realizing service path precomputation based on SDN with being
System.In the case where not influenceing the principle of SDN rapid deployment business, whether user can need progress service path estimated with unrestricted choice
Calculate.If necessary to carry out precomputation, SDN controllers can calculate all available tunnel paths automatically and identify optimal path
Recommend user's selection.If MSPW scenes, (exchange point in the case of multiple exchange points being present and be more than or equal to 2), go back accounting
Calculate all available PW paths to select for user, and identify the optimal path of recommendation.Whole flow process is to original rapid deployment industry
The flow of business does not have any influence, but is the reduction of after service deployment, and service path, which is unsatisfactory for user's request, to be needed to adjust again
Risk, and improve the flexibility of business configuration, meet the needs of different user.To sum up, the embodiment of the present invention provides one
Kind of the method and system for realizing service path precomputation based on SDN, to improve the free degree of rapid deployment SDN business and
Otherness, after reducing service deployment, service path does not reach expection, then the risk of redjustment and modification business again.
Fig. 5 is the flow chart of the business compound method of the preferred embodiment of the present invention, as shown in figure 5, comprising the following steps：
Step S502, user select Service Access point and exchange point information configuration MSPW business；
Step S504, the instruction (namely configuration service mentioned above request) of configuration service is received, judges whether to need
Precomputation is carried out, in the case where the judgment result is yes, step S506 is performed, in the case where judged result is no, redirects
Perform step S510；
Step S506, calculate all available PW paths (namely pseudo-wire configuration path mentioned above) and tunnel path
(namely tunnel configuration path mentioned above) and the optimal conditions specified according to user, mark recommendation paths return to business and matched somebody with somebody
Put interface for users selection；
Step S508, the path that user is selected are deployed to SDN equipment as final path, and return to deployment knot
Fruit；
Step S510, calculate an available path and be directly deployed to SDN equipment, return to deployment result；
Step S512, record traffic deployment result are simultaneously presented.
The inventive method is described in further detail with reference to Figure of description and specific embodiment.
Fig. 6 is the schematic diagram of the business collocation method of the preferred embodiment of the present invention, and the SDN that each two interconnects in figure is set
May all there are multiple identical equipment between standby, be here simplified exemplary plot.The method of the present invention is applied to this embodiment, from connecing
Access point A to access point D creates MSPW business, and the main point that exchanges is B C, and the standby point that exchanges is E F.As shown in fig. 6, including following step
Suddenly：
Step 10：User creates MSPW business, selection by SDN controller managements APP or other business configuration systems
Service Access point A, D, it is B, C to set the main point that exchanges, and the standby point that exchanges is E, F.
Step 20：Business configuration module receives the instruction of configuration service, verifies the parameter received, if parameter is closed
Method, then check whether to need to carry out service path precomputation, if it is desired, precalculation module is sent instructions to, that is, arrives step
30, if it is not needed, directly transmitting instruction arrives service deployment module, that is, arrive step 50.The present embodiment uses pre-computation methods,
And the optimal path recommendation criterion that user specifies is that cost values are minimum, and delay can not be more than 50ms.
Step 30：It is MSPW business that precalculation module, which identifies, then needs to calculate all PW available path and business
Tunnel path.Wherein, main PW available path is A-B-C-D and A-C-B-D；Standby PW available path for A-E-F-D and
A-F-E-D. from the beginning Service Access point A sets out to tail Service Access point D, according to shortest path first, can main A-B-C-D with
And standby A-E-F-D is as the optimal PW paths recommended.In addition, there is its corresponding available traffic engineering tunnel path in every PW path, its
This main available traffic engineering tunnel path in PW paths of middle A-B-C-D has：A-B-C-D、A-E-B-C-D、A-E-B-E-F-C-D、A-B-
E-F-C-D etc., similarly this standby available traffic engineering tunnel path in PW paths of A-E-F-D have A-E-F-D, A-E-F-C-D, A-E-B-C-
F-D etc..May there are multiple SDN device nodes, PW paths and traffic engineering tunnel road between actually A-B-C-D and A-E-F-D
Footpath is usually different, and the present embodiment is simplification figure.In all tunnel paths calculated, according to the cost values in path from small
To big one by one inspection, judge whether the delay per paths meets the requirement no more than 50ms, consequently recommended optimal path should
This is that the cost values of tunnel path are minimum and meet that delay is not more than the path of 50ms conditions.Precalculation module mark is optimal
PW and tunnel path simultaneously return to business configuration interface, are selected for user, and acquiescence chooses recommendation most on business configuration interface
Shortest path, now user can not relatively directly using recommend optimal path, the other routing informations of comparison can also be checked,
And select to be issued to SDN controllers.
In the case where any tunnel path is all unsatisfactory for cost values minimum and is not more than 50ms condition, cost values are determined
It is minimum higher than no more than 50ms priority, the tunnel road for configuring SDN equipment is selected according to cost value minimal conditions
Footpath.
Step 40：Service deployment module receives the final path of user's selection, and tunnel path is disposed by PCEP
To SDN equipment, other relevant configurations are deployed to SDN equipment using netconf.
Step 50：Service deployment module, calculate an available path and be directly deployed to SDN equipment, and return
Affix one's name to result
Step 60：Service deployment module feeds back final deployment result to business configuration system, business configuration system record
And the result of service deployment is presented.In order to which user checks.
In summary, the present invention provides a kind of method and system for realizing service path precomputation based on SDN.Do not changing
Become under the flow of original rapid deployment SDN business, increase service path precomputation function., not only can be pre- under MSPW scenes
Tunnel path is calculated, dot sequency is exchanged it is also contemplated that calculating, that is, PW optional path.SDN controllers return all available
Service path, and the optimal path criterion specified according to user, optimal path is recommended to be selected for user.User can give tacit consent to use
The optimal path that SDN controllers are recommended, can also select the final road for using other optional service paths as service deployment
Footpath.The method and system substantially increase the free degree and otherness of SDN service deployments, after reducing service deployment, business
Path does not reach expection, then the risk of redjustment and modification business again, improves Consumer's Experience.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general
Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and formed
Network on, alternatively, they can be realized with the program code that computing device can perform, it is thus possible to they are stored
Performed in the storage device by computing device, and in some cases, can be with different from shown in order execution herein
The step of going out or describing, they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or
Step is fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware and software combination.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., all should be included within protection scope of the present invention.
Claims (17)
- A kind of 1. business collocation method, it is characterised in that including：Path according to being carried in the business configuration request received determines that condition determines business configuration path, wherein, the industry Business configuring request is that operation layer is sent；Destination path in the business configuration path is sent to software defined network SDN equipment, wherein, the target Path is used to carry out business configuration to the SDN equipment.
- 2. according to the method for claim 1, it is characterised in that the destination path by the business configuration path is sent out Giving SDN equipment includes：A destination path is determined from the business configuration path, wherein, the business configuration path includes a plurality of road Footpath；The destination path is sent to the SDN equipment.
- 3. according to the method for claim 2, it is characterised in that a target is determined from the business configuration path Path includes：RX path selection instruction, wherein, the routing instructions choose the destination path for instruction；Respond the routing instructions and select the destination path from the business configuration path.
- 4. according to the method for claim 1, it is characterised in that carried in the business configuration request that the basis receives Path determines that condition determines that business configuration path includes：Judge whether to be configured with multi-segment pseudo-wires MSPW business；In the case where judging to be configured with the MSPW business, determine that condition determines every pseudo-wire PW PW according to the path Path and traffic engineering tunnel path corresponding with the PW paths, wherein, the business configuration path includes：PW paths and described Traffic engineering tunnel path；A target PW path is determined from the PW paths, and is determined from traffic engineering tunnel path corresponding to the target PW paths One target traffic engineering tunnel path, wherein, using the target PW paths and the target traffic engineering tunnel path as the business configuration The destination path in path.
- 5. according to the method for claim 4, it is characterised in that described that a target PW path is determined from the PW paths Including：In the case where being configured with the exchange point of the MSPW business, the order put according to the exchange is true from the PW paths A fixed target PW path.
- 6. according to the method for claim 5, it is characterised in that determine the order for exchanging point by following steps：Judge whether to receive the exchange dot sequency information that the operation layer issues；In the case where the judgment result is yes, the order indicated by the exchange dot sequency information is defined as the exchange point Sequentially；In the case where judged result is no, determined to exchange dot sequency according to shortest path condition.
- 7. according to the method any one of claim 1-6, it is characterised in thatDetermining that condition determines the business configuration road according to the path carried in the business configuration received request Before footpath, methods described also includes：Receive the business configuration request；Judge whether to need in response to business configuration request Carry out the precomputation operation in the business configuration path；Judging to carry out the precomputation behaviour in the business configuration path In the case of work, default path is determined according to implied terms set in advance, the default path is sent into SDN sets It is standby；Path according to being carried in the business configuration request received determines that condition determines that business configuration path includes：Judging In the case of the precomputation operation for needing to carry out the business configuration path, according to what is carried in the business configuration request received Path determines that condition determines business configuration path.
- 8. according to the method for claim 7, it is characterised in that described to judge whether to need in response to business configuration request Carrying out the precomputation operation in the business configuration path includes：Judge that whether carrying the path in the business configuration request determines condition；In the case where carrying the path during the business configuration is asked and determining condition, judge to need to carry out the business The precomputation operation of configuration path；Without carrying in the case that the path determines condition in business configuration request, judge to carry out described The precomputation operation in business configuration path.
- 9. according to the method for claim 2, it is characterised in that described to be determined from the business configuration path described in one Destination path includes：In the case of determining that condition is minimum cost value condition in the path, whole available service paths are obtained；From described complete Determine the minimum service path of a cost value as the destination path in portion available service path；OrIn the case of determining that condition is minimum hop count condition in the path, whole available service paths are obtained；From the whole Determine the minimum service path of a jumping figure value as the destination path in available service path；OrIn the case of determining that condition is minimal time delay value condition in the path, whole available service paths are obtained；From described complete Determine the minimum service path of a time delay value as the destination path in portion available service path.
- 10. according to the method for claim 2, it is characterised in that the path determines that condition includes：Determine that the path that condition forms determines integrated condition by least two paths, wherein, the path determines that condition is basis What one of cost value, jumping figure value and time delay value determined respectively.
- 11. according to the method for claim 10, it is characterised in that described that an institute is determined from the business configuration path Stating destination path includes：Determine that integrated condition determines condition and in the case that the second path determines condition including first path in the path, obtain A plurality of available service path；Judge to whether there is in a plurality of available service path and meet that the first path determines condition First object path；In the case where judging to have the first object path, judge in the first object path whether In the presence of meeting that second path determines the second destination path of condition；Judging second destination path be present Under, it is the destination path to determine second destination path；OrDetermine that integrated condition determines that condition, the second path determine that condition and the 3rd path determine including first path in the path In the case that condition forms, a plurality of available service path is obtained；Judge that a plurality of available service path whether there is and meet institute State the 3rd destination path that first path determines condition；In the case where judging to have the 3rd destination path, institute is judged State to whether there is in the 3rd destination path and meet that second path determines the 4th destination path of condition；Judging institute be present In the case of stating the 4th destination path, judge in the 4th destination path with the presence or absence of meeting that the 3rd path determines condition The 5th destination path；In the case where judging to have the 5th destination path, it is institute to determine the 5th destination path State destination path.
- 12. according to the method for claim 11, it is characterised in that after a plurality of available service path is obtained, institute Stating method also includes：All it is unsatisfactory in the case that the path determines integrated condition, repeating following behaviour in a plurality of available service path Make, until determining the destination path from a plurality of available service path, wherein, current path determines integrated condition Initial value is that the path determines integrated condition：Determine that the minimum path of priority is deleted in integrated condition determines condition from the current path, the road after being changed Footpath determines integrated condition；Judge to whether there is in a plurality of available service path and meet that the path after the change determines the described of integrated condition Destination path；In the case of determining the destination path of integrated condition in the path for judging to be not present after meeting the change, by institute State the path after change and determine that integrated condition determines integrated condition as the current path.
- A kind of 13. business configuration requesting method, it is characterised in that including：Sent to software defined network SDN controllers and carry the business configuration request that path determines condition, wherein, the business is matched somebody with somebody Request is put to be used to indicate that the SDN controllers determine that condition determines business configuration path, the business configuration according to the path Destination path in path is used to carry out business configuration to the SDN equipment for receiving the business configuration path.
- 14. according to the method for claim 13, it is characterised in that carry path determination being sent to the SDN controllers After the business configuration request of condition, methods described also includes：Transmitting path selection instruction, wherein, the routing instructions choose the destination path for instruction.
- A kind of 15. business configuration device, it is characterised in that including：Determining module, for determining that condition determines business configuration road according to the path carried in the business configuration request received Footpath, wherein, the business configuration request is that operation layer is sent；Sending module, for the destination path in the business configuration path to be sent into software defined network SDN equipment, Wherein, the destination path is used to carry out business configuration to the SDN equipment.
- A kind of 16. business configuration request unit, it is characterised in that including：Sending module, for sending the business configuration request for carrying path and determining condition to software defined network SDN controllers, its In, the business configuration asks to be used to indicate that the SDN controllers determine that condition determines business configuration path according to the path, Destination path in the business configuration path is used to carry out business to the SDN equipment for receiving the business configuration path Configuration.
- 17. a kind of NMS, including operation layer, software defined network SDN controllers and SDN equipment, its feature It is：The SDN controllers determine that condition determines business configuration road according to the path carried in the business configuration request received Footpath, wherein, the business configuration request is that operation layer is sent；Destination path in the business configuration path is sent to software defined network SDN equipment by the SDN controllers, Wherein, the destination path is used to carry out business configuration to the SDN equipment.
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