CN109743211A - Path open system and method are cooperateed with optical-fiber network based on the IP network of SDN - Google Patents
Path open system and method are cooperateed with optical-fiber network based on the IP network of SDN Download PDFInfo
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Abstract
The invention discloses the IP networks based on SDN, and path open system and method are cooperateed with optical-fiber network, the characteristics of present invention makes full use of the configuration of IP network strategy flexibly and optical-fiber network large capacity business processing, IP network SDN controller is allowed to be responsible for the collection and processing of global information, the formulation of network strategy with issue, optical-fiber network SDN controller, which is responsible for providing, optical-fiber network information and realizes quick road construction by method for pre-configuration.The method of the present invention reduces the complexity that IP network is cooperateed with optical-fiber network, improves the speed that service path is opened, improves the utilization rate of Internet resources.
Description
Technical field
The present invention relates to data communication and optical network communication fields, more particularly to IP network and optical-fiber network based on SDN
Cooperate with path open system and method.
Background technique
IP network is always the critical issue of communication network development with the control that cooperates with of optical-fiber network, if can be by two independences
The network cooperating O&M of planning, management and operation, communication network overall operation efficiency can be greatly improved, the entirety of network
Construction maintenance complexity and cost are greatly reduced.
The appearance of software defined network (Software Defined Networking, SDN) is that IP network and optical-fiber network are assisted
New solution is provided with O&M.SDN is a kind of novel network technology, its theory be by network-based control plane with
Data forwarding plane is separated, and realizes programmable control.In the network based on SDN, the network equipment can be using logical
Hardware；And refinement is independent network operating system by the operating system for being responsible for control originally, is responsible for by it to not of the same trade or business
The adaptation for characteristic of being engaged in, and the communication between network operating system and business feature and hardware device is all that can pass through programming
It realizes.
Based on the above basis, industry is commonly proposed by cooperateing between IP network SDN controller and optical-fiber network SDN controller
With the mode of layout, two network cooperating interactions are realized, quickly and efficiently to realize at service fulfillment, link protection and failure
Reason.Such as patent application " IP and the quick open system of optical network service and method " (application number: 201810825806.2) proposes
It is respectively set IP network controller and optical-fiber network controller, and constructs and be located at IP and the quick open system top layer of optical network service
Collaborative controller enables IP network controller and optical-fiber network controller to interact respectively with collaborative controller, Jin Eryou
Collaborative controller unified planning goes out optimal path, while controlling IP network layer and optical-fiber network layer.A kind of patent of invention " base
In the IP route processing method and device of ASON optical-fiber network " it (application number: 201410306952.6) proposes to be based on ASON optical-fiber network
IP route processing method and device, the ability connected automatically using optical-fiber network, optimization IP routing selection.Paper [3] [4]
[5] " IP+ light " network cooperating proposed is uniformly controlled using IP network SDN controller and optical-fiber network SDN controller as starting point,
Pass through the unified final Collaborative Control for realizing IP network and optical-fiber network of the collaboration between controller.
There are reapective features in terms of construction, O&M and business processing for IP network and optical-fiber network.IP operation itself has
Uncertain and Unpredictability, the granularity of IP operation is more, requires equipment disposal ability fine.IP network networking flexibility,
Business configuration is convenient, tactful building and issue rapidly.In comparison, optical-fiber network processing granularity is big, and sending down service is matched with strategy
Set due to need be adapted to optical device thus it is not convenient enough, while being not easy to frequently to carry out the foundation in path and being configured etc. with tactful
Work.
Bibliography:
[1] patent of invention " IP and the quick open system of optical network service and method ", application number: 201810825806.2
[2] patent of invention " a kind of IP route processing method and device based on ASON optical-fiber network ", application number:
201410306952.6
[3] Li Xiaoshuan is based on the SDN IP network controlled and optical-fiber network combined optimization technical research [D] Beijing University of Post & Telecommunication,
2015.
[4] control technology research [D] the Beijing University of Post & Telecommunication that Zhou Yu is merged towards IP and optical-fiber network, 2018.
[5] Wang Dongshan is uniformly controlled technology [A] China electrical engineering towards " IP+ light " network cooperating of power business
Meeting power informatization Professional Committee Digital CHINA energy source interconnection --- in 2018 informatization of power industry nd Annual Meeting collection [C]
Power informatization Professional Committee, Electrical Engineering Society, state: telecommunication science editorial office, People's Telecon Publishing House, 2018:1.
Summary of the invention
In view of the deficiencies of the prior art, it cooperates with path to open with optical-fiber network the present invention provides the IP network based on SDN to be
System, including IP network SDN controller and optical-fiber network SDN controller；
IP network SDN controller and optical-fiber network SDN controller have separately included SDN controller；
The IP network SDN controller further includes Service Processing Module, resource analysis modules A, routing calculation module and plan
Slightly configuration module；
The Service Processing Module is received by the SDN controller northbound interface in IP network SDN controller and comes from upper layer
Service application request, obtain the sourcesink nodal information and bandwidth demand of service path, and be sent to routing calculation module and money
Source analysis module A；
Wherein, the SDN controller northbound interface in IP network SDN controller is located between control plane and application, by IP
The network capabilities and information that SDN controller in network SDN controller provides are abstracted and are opened to be used to application layer,
RESTful is the implementation of industry northbound interface mainstream.All believe comprising basic service source destination node in general business request
The information such as breath and other grades of service, Preservation tactics, business tine.
The resource analysis modules A is for counting IP network equipment use state, so that obtaining IP network resource uses feelings
Condition；
The routing calculation module is pre-configured optical path information, service path sourcesink nodal information, IP network according to optical-fiber network
Resource service condition carries out the calculating of service transmission path, routing iinformation of the final output business in IP network；
The business routing iinformation that the strategy configuration module exports routing calculation module, is transmitted by southbound interface agreement
To the ip router in network, to guarantee the foundation of transmission path；
The optical-fiber network SDN controller further includes resource analysis module B, provisioning module and service fulfillment module；
The resource analysis module B is used for collection analysis optical network resource service condition, and optical network resource is used feelings
Condition is distributed to IP network SDN controller and provisioning module；
The provisioning module is calculated according to optical network resource service condition is pre-configured optical path, and record storage is pre-configured light
Road table；
The service fulfillment module is attached by southbound interface agreement with optical network device, and setting is pre-configured optical path,
When practical business requests to reach, pre-configuration optical path is opened.
The resource analysis modules A is for counting IP network equipment use state, and specifically include: resource analysis modules A is logical
Cross the facility information of the SDN controller southbound interface acquisition router in IP network SDN controller, including network node, interface
Type, physical link and port address information.
The resource analysis modules A supports that two or more southbound interface agreements, the southbound interface agreement include SNMP association
View, NETFLOW agreement, SFLOW agreement and NetStream agreement.
The service path sourcesink nodal information and bandwidth demand are provided by Service Processing Module, and IP network resource uses feelings
Condition is provided by resource analysis modules A, and optical-fiber network is pre-configured optical path information and is provided by optical-fiber network SDN controller.
Since, there are mapping relations, optical-fiber network is deposited as the bearer path of IP traffic between IP network and optical network service
?.It is suitable for the optical signal transmitted in optical-fiber network that IP data can be packaged into the source node of photosphere, is determined being pre-configured optical path
Afterwards, corresponding IP routing is just correspondingly arranged completion.
SDN controller in IP network SDN controller carries out link discovery, Topology Management, strategy by southbound interface and makes
Fixed, list item issues operation, to complete management and configuration to vendor equipment；The strategy configuration module supports two or more south orientations
Interface protocol, the southbound interface agreement include OPENFLOW agreement, NETCONF agreement and bgp protocol.Tactful configuration module institute
South orientation agreement biases toward that finally calculated routing iinformation is issued to routing device, resource analysis modules A by SDN controller
South orientation agreement used is partial to for routing device and each link use state of IP network being collected and reports to SDN control
Device carries out processing analysis for IP network SDN controller；
The resource analysis module B is used for collection analysis optical network resource service condition, and optical network resource is used feelings
Condition is distributed to IP network SDN controller and provisioning module, specifically includes: resource analysis module B is by including snmp protocol
Southbound interface agreement acquires optical network device information, including network node, interface type, physical link, port address information, institute
It states resource analysis module B and supports two or more southbound interface agreements, the southbound interface agreement includes snmp protocol, NETFLOW
Agreement, SFLOW agreement and NetStream agreement.
The invention also discloses the IP networks based on SDN, and path activating method is cooperateed with optical-fiber network, comprising the following steps:
Step 1: the resource analysis module B in optical-fiber network SDN controller classifies to optical network resource；
Step 2: the provisioning module in optical-fiber network SDN controller, which calculates and sets optical-fiber network, is pre-configured optical path；
Step 3:IP network SDN controller receives business road construction request, specifies the sourcesink nodal information of business transmission；
Step 4: if existing pre-configuration optical path can bearer service, enter step 6；If being pre-configured optical path is unsatisfactory for industry
Business demand, enters step 5；
Step 5:IP network SDN controller sends service request to optical-fiber network SDN controller, in optical-fiber network SDN controller
The provisioning module pre-configuration optical path that meets bandwidth requirement new according to service request bandwidth calculation, and result is fed back into IP
Network SDN controller；
Step 6:IP network SDN controller sets ip routing information according to the new pre-configuration optical path for meeting bandwidth requirement,
And it is issued to IP device；
The foundation of business end-to-end path is carried out after the completion of step 7:IP routing and optical routing setting；
Step 8: the detection of optical-fiber network SDN controller is pre-configured optical path occupancy situation, and provisioning module, which calculates, supplements newly pre-
Optical path is configured, and is updated to resource analysis module B and resource analysis modules A.
Step 1 includes: that optical network resource is divided into three classes, and the first kind is to have occupied light path resource, that is, has been used for carrying industry
The resource of business transformation task；Second class is to be pre-configured light path resource, this part resource is already allocated to pre-configuration optical path, works as needs
The sending down service of carrying comes, and is pre-configured optical path and just directly initiates, completes the formal road construction of optical path；Third class is that money is not used
Source, unused resources later period can be assigned to pre-configuration optical path.
Step 2 includes: that service fulfillment module is pre-configured optical path to optical-fiber network, and the pre-configuration optical path refers to two optical nodes
Between be pre-configured good corresponding optical routing in advance, optical-fiber network SDN controller accuses the optical path information being pre-configured between the two optical nodes
Know IP network SDN controller, produces specific data transmission requests, IP network SDN controller when the two optical nodes are practical
It is routed according to the Calculation of Optical Path IP is pre-configured, then carries out the processing and transmission of data, at this point, the pre-configuration of optical-fiber network SDN controller
Module needs to safeguard a pre-configuration optical path table, and the path letter of optical path is pre-configured between any two optical node for calculating, storing
Breath and resource allocation conditions；It is used for bearer service when being pre-configured optical path between two optical nodes, after resource is occupied, optical-fiber network
Provisioning module in SDN controller can calculate in time according to network entirety resource service condition, construct new pre-configuration optical path,
Calculating and the more new strategy for being pre-configured optical path are as follows:
Step 2-1: every light path resource service condition of statistics sets the pre- occupation value α of resource, i.e. pre-configuration optical path occupies band
Wide size, α suggest being arranged in 5GB/s or higher；When optical path idle bandwidth be lower than α, then the optical path is deleted from network topology
It removes, while more newly-generated new optical-fiber network topology；
Step 2-2: the optical-fiber network topology generated based on step 2-1, is any two optical node shortest path first meter
It calculates path and then chooses the highest one section of link of resource utilization on every shortest path if there is two or more shortest paths
It is compared to each other, selects the lower shortest path of resource utilization as pre-configuration optical path；When the money for being pre-configured optical path
After source is occupied, then every light path resource service condition is counted again, and calculate update and be pre-configured optical path.
What needs to be explained here is that optical node herein and not including and being used only to relaying, amplification or enhancing optical signal
Optical transport transparent transmission node has no effect on setting for IP network routing because these nodes and IP node are generally not present mapping relations
It is fixed.
The present invention proposes the thought " based on IP scheduling, supplemented by optical-fiber network amendment ", and optical-fiber network is by network topological information, resource
IP network SDN controller is passed to by interface using with information such as service bearer abilities, this makes IP network SDN controller pair
Discriminatory analysis comprehensively can be carried out according to optical-fiber network and IP network overall condition when new road construction request is routed,
And then select optimal service path.Further, optical-fiber network takes the strategy for being pre-configured optical path, passes through the good optical path of preset in advance
Connection can quickly and easily realize the foundation in optical-fiber network path when receiving IP operation road construction request.
The present invention makes full use of the configuration of IP network strategy flexibly and the characteristics of optical-fiber network large capacity business processing, allows IP network
Network SDN controller is responsible for the collection and processing of global information, the formulation of network strategy with issue, optical-fiber network SDN controller is responsible for
The network information is provided and quick road construction is realized by method for pre-configuration.This method reduce the complexity that IP network is cooperateed with optical-fiber network
Degree, improves the speed of service fulfillment, improves the utilization rate of Internet resources.
Detailed description of the invention
The present invention is done with reference to the accompanying drawings and detailed description and is further illustrated, it is of the invention above-mentioned or
Otherwise advantage will become apparent.
Fig. 1 is IP network and optical-fiber network configuration diagram.
Fig. 2 to realize the present invention necessary to each Service Processing Module.
Fig. 3 is that IP network and optical-fiber network cooperation service open flow chart.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and embodiments.
The present invention provides the IP networks based on SDN, and path open system, including IP network SDN control are cooperateed with optical-fiber network
Device and optical-fiber network SDN controller；
IP network SDN controller and optical-fiber network SDN controller have separately included SDN controller；
The IP network SDN controller further includes Service Processing Module, resource analysis modules A, routing calculation module and plan
Slightly configuration module；
The Service Processing Module is received by the SDN controller northbound interface in IP network SDN controller and comes from upper layer
Service application request, obtain the sourcesink nodal information and bandwidth demand of service path, and be sent to routing calculation module and money
Source analysis module A；
Wherein, the SDN controller northbound interface in IP network SDN controller is located between control plane and application, by IP
The network capabilities and information that SDN controller in network SDN controller provides are abstracted and are opened to be used to application layer,
RESTful is the implementation of industry northbound interface mainstream.All believe comprising basic service source destination node in general business request
The information such as breath and other grades of service, Preservation tactics, business tine.
The resource analysis modules A is for counting IP network equipment use state, so that obtaining IP network resource uses feelings
Condition；
The routing calculation module is pre-configured optical path information, service path sourcesink nodal information, IP network according to optical-fiber network
Resource service condition carries out the calculating of service transmission path, routing iinformation of the final output business in IP network；
The business routing iinformation that the strategy configuration module exports routing calculation module, is transmitted by southbound interface agreement
To the ip router in network, to guarantee the foundation of transmission path；
The optical-fiber network SDN controller further includes resource analysis module B, provisioning module and service fulfillment module；
The resource analysis module B is used for collection analysis optical network resource service condition, and optical network resource is used feelings
Condition is distributed to IP network SDN controller and provisioning module；
The provisioning module is calculated according to optical network resource service condition is pre-configured optical path, and record storage is pre-configured light
Road table；
The service fulfillment module is attached by southbound interface agreement with optical network device, and setting is pre-configured optical path,
When practical business requests to reach, pre-configuration optical path is opened.
The resource analysis modules A is for counting IP network equipment use state, and specifically include: resource analysis modules A is logical
Cross the facility information of the SDN controller southbound interface acquisition router in IP network SDN controller, including network node, interface
Type, physical link and port address information.
The resource analysis modules A supports that two or more southbound interface agreements, the southbound interface agreement include SNMP association
View, NETFLOW agreement, SFLOW agreement and NetStream agreement.
The service path sourcesink nodal information and bandwidth demand are provided by Service Processing Module, and IP network resource uses feelings
Condition is provided by resource analysis modules A, and optical-fiber network is pre-configured optical path information and is provided by optical-fiber network SDN controller.
Since, there are mapping relations, optical-fiber network is deposited as the bearer path of IP traffic between IP network and optical network service
?.It is suitable for the optical signal transmitted in optical-fiber network that IP data can be packaged into the source node of photosphere, is determined being pre-configured optical path
Afterwards, corresponding IP routing is just correspondingly arranged completion.
SDN controller in IP network SDN controller carries out link discovery, Topology Management, strategy by southbound interface and makes
Fixed, list item issues operation, to complete management and configuration to vendor equipment；The strategy configuration module supports two or more south orientations
Interface protocol, the southbound interface agreement include OPENFLOW agreement, NETCONF agreement and bgp protocol.Tactful configuration module institute
South orientation agreement biases toward that finally calculated routing iinformation is issued to routing device, resource analysis modules A by SDN controller
South orientation agreement used is partial to for routing device and each link use state of IP network being collected and reports to SDN control
Device carries out processing analysis for IP network SDN controller；
The resource analysis module B is used for collection analysis optical network resource service condition, and optical network resource is used feelings
Condition is distributed to IP network SDN controller and provisioning module, specifically includes: resource analysis module B is by including snmp protocol
Southbound interface agreement acquires optical network device information, including network node, interface type, physical link, port address information, institute
It states resource analysis module B and supports two or more southbound interface agreements, the southbound interface agreement includes snmp protocol, NETFLOW
Agreement, SFLOW agreement and NetStream agreement.
The invention also discloses the IP networks based on SDN, and path activating method is cooperateed with optical-fiber network, comprising the following steps:
Step 1: the resource analysis module B in optical-fiber network SDN controller classifies to optical network resource；
Step 2: the provisioning module in optical-fiber network SDN controller, which calculates and sets optical-fiber network, is pre-configured optical path；
Step 3:IP network SDN controller receives business road construction request, specifies the sourcesink nodal information of business transmission；
Step 4: if existing pre-configuration optical path can bearer service, enter step 6；If being pre-configured optical path is unsatisfactory for industry
Business demand, enters step 5；
Step 5:IP network SDN controller sends service request to optical-fiber network SDN controller, in optical-fiber network SDN controller
The provisioning module pre-configuration optical path that meets bandwidth requirement new according to service request bandwidth calculation, and result is fed back into IP
Network SDN controller；
Step 6:IP network SDN controller sets ip routing information according to the new pre-configuration optical path for meeting bandwidth requirement,
And it is issued to IP device；
The foundation of business end-to-end path is carried out after the completion of step 7:IP routing and optical routing setting；
Step 8: the detection of optical-fiber network SDN controller is pre-configured optical path occupancy situation, and provisioning module, which calculates, supplements newly pre-
Optical path is configured, and is updated to resource analysis module B and resource analysis modules A.
Step 1 includes: that optical network resource is divided into three classes, and the first kind is to have occupied light path resource, that is, has been used for carrying industry
The resource of business transformation task；Second class is to be pre-configured light path resource, this part resource is already allocated to pre-configuration optical path, works as needs
The sending down service of carrying comes, and is pre-configured optical path and just directly initiates, completes the formal road construction of optical path；Third class is that money is not used
Source, unused resources later period can be assigned to pre-configuration optical path.
Step 2 includes: that service fulfillment module is pre-configured optical path to optical-fiber network, and the pre-configuration optical path refers to two optical nodes
Between be pre-configured good corresponding optical routing in advance, optical-fiber network SDN controller accuses the optical path information being pre-configured between the two optical nodes
Know IP network SDN controller, produces specific data transmission requests, IP network SDN controller when the two optical nodes are practical
It is routed according to the Calculation of Optical Path IP is pre-configured, then carries out the processing and transmission of data, at this point, the pre-configuration of optical-fiber network SDN controller
Module needs to safeguard a pre-configuration optical path table, and the path letter of optical path is pre-configured between any two optical node for calculating, storing
Breath and resource allocation conditions；It is used for bearer service when being pre-configured optical path between two optical nodes, after resource is occupied, optical-fiber network
Provisioning module in SDN controller can calculate in time according to network entirety resource service condition, construct new pre-configuration optical path,
Calculating and the more new strategy for being pre-configured optical path are as follows:
Step 2-1: every light path resource service condition of statistics sets the pre- occupation value α of resource, i.e. pre-configuration optical path occupies band
Wide size, α suggest being arranged in 5GB/s or higher；When optical path idle bandwidth be lower than α, then the optical path is deleted from network topology
It removes, while more newly-generated new optical-fiber network topology；
Step 2-2: the optical-fiber network topology generated based on step 2-1, is any two optical node shortest path first meter
It calculates path and then chooses the highest one section of link of resource utilization on every shortest path if there is two or more shortest paths
It is compared to each other, selects the lower shortest path of resource utilization as pre-configuration optical path；When the money for being pre-configured optical path
After source is occupied, then every light path resource service condition is counted again, and calculate update and be pre-configured optical path.
What needs to be explained here is that optical node herein and not including and being used only to relaying, amplification or enhancing optical signal
Optical transport transparent transmission node has no effect on setting for IP network routing because these nodes and IP node are generally not present mapping relations
It is fixed.
Embodiment
There are various data transmission service demands in network, for example, between data center the distribution of data with it is standby
Part, the interaction of data between each node of enterprise, special line transmission line opens etc. between each node of telecommunication network.It is with Fig. 1
Example, set each node in IP network has the demand of transmission special line foundation as the core router in telecommunication network between each other.
In general, data equipment is connect back-to-back with optical transmission device in telecommunication network, so that IP data can be packaged into optical signal,
And then it is transmitted in optical-fiber network.There are mapping relations with optical transmission device for data equipment at this time, in Fig. 1, A-a, B-b, C-e,
D-d, E-g, F-h show to map connection relationship between data equipment and optical transmission device.C, f node are in optical transport in optical-fiber network
After node, when optical-fiber network carries out pre-configuration the Calculation of Optical Path, it is not intended that inside.
Based on method provided by the invention, resource analysis modules A acquires router device by SDN southbound interface agreement
Model, the model of router device generally have 7750 equipment of the NE5000E of Huawei, the CRS of Cisco or A Lang；Acquisition routing
Device port number and type are the port or the port of 40GE of 10GE, the service condition of each port；Feelings are connected between router
Which node condition, next-hop are.Likewise, resource analysis module B acquires the equipment class of transmission device by southbound interface agreement
Type, utilization rate, connection etc..
By taking Fig. 1 as an example, establishing transmission path by point-to-point transmission, this is applied substantially and illustrates plan proposed by the present invention
Slightly.Firstly, optical-fiber network is pre-configured optical path between calculating two optical nodes.Such as between a-h, it is (a-e-g-h) that shortest path, which has two,
(a → b → d → (f) → h), because f node is relay node, not counting formal hop count.(a-e-g-h) resource utilization is most in path
High link is that (a-e) resource utilization is 55%, and the highest link of resource utilization is in the path (a → b → d → (f) → h)
(a-b) resource utilization is 58%.Then select path (a-e-g-h) as optical path is pre-configured, bandwidth 5GB/s, this is prewired
IP network SDN controller and optical-fiber network SDN controller can be synchronized to by setting optical path.This is pre-configured optical path can be in IP network
The data stream transmitting of A-F node provides transmission optical path.
After IP network SDN controller receives A-F node traffic road construction request, there is pre-configuration optical path by discovery
A-h just notices optical-fiber network SDN controller and needs to occupy this optic path business, while newly-built IP route table is according to prewired
It sets the information of optical path and is set as A:(A → C → E → F).
After pre-configuration optical path (a → e → g → h) is occupied between a-h, optical-fiber network SDN controller more new resources use feelings
Condition, this optical path utilization rate has become very high at this time for discovery, can not provide the bandwidth greater than 5GB/s, just recalculate one
Item is pre-configured optical path, and shortest path is (a → b → d → (f) → h) at this time, then constructing and being pre-configured optical path is B:(a → b → d → (f)
→ h), bandwidth 5GB/s using the data stream transmitting optical path as A-F node in IP network, and distributes informing and controls to IP network SDN
Device processed.
After IP network SDN controller receives new A-F node traffic road construction request again, just using pre-configuration optical path
B:(a → b → d → (f) → h), while newly-built IP route table is set as B:(A → B → D according to the information for being pre-configured optical path
→F)。
The present invention provides the IP networks based on SDN, and path open system and method are cooperateed with optical-fiber network, and specific implementation should
There are many method and approach of technical solution, the above is only a preferred embodiment of the present invention, it is noted that for this technology
For the those of ordinary skill in field, various improvements and modifications may be made without departing from the principle of the present invention, this
A little improvements and modifications also should be regarded as protection scope of the present invention.Existing skill can be used in each component part being not known in the present embodiment
Art is realized.
Claims (9)
1. cooperateing with path open system with optical-fiber network based on the IP network of SDN, which is characterized in that including IP network SDN controller
With optical-fiber network SDN controller；
IP network SDN controller and optical-fiber network SDN controller have separately included SDN controller；
The IP network SDN controller further includes that Service Processing Module, resource analysis modules A, routing calculation module and strategy are matched
Set module；
The Service Processing Module receives the industry from upper layer by the SDN controller northbound interface in IP network SDN controller
Business application request, obtains the sourcesink nodal information and bandwidth demand of service path, and is sent to routing calculation module and resource point
Analyse modules A；
The resource analysis modules A is for counting IP network equipment use state, to obtain IP network resource service condition；
The routing calculation module is pre-configured optical path information, service path sourcesink nodal information, IP network resource according to optical-fiber network
Service condition carries out the calculating of service transmission path, routing iinformation of the final output business in IP network；
The business routing iinformation that the strategy configuration module exports routing calculation module, passes to net by southbound interface agreement
Ip router in network, to guarantee the foundation of transmission path；
The optical-fiber network SDN controller further includes resource analysis module B, provisioning module and service fulfillment module；
The resource analysis module B is used for collection analysis optical network resource service condition, and optical network resource service condition is divided
It is sent to IP network SDN controller and provisioning module；
The provisioning module is calculated according to optical network resource service condition is pre-configured optical path, and record storage is pre-configured optical path
Table；
The service fulfillment module is attached by southbound interface agreement with optical network device, and setting is pre-configured optical path, works as reality
When border service request reaches, pre-configuration optical path is opened.
2. system according to claim 1, which is characterized in that the resource analysis modules A is for counting IP network equipment
Use state specifically includes: resource analysis modules A acquires road by the SDN controller southbound interface in IP network SDN controller
By the facility information of device, including network node, interface type, physical link and port address information.
3. system according to claim 2, which is characterized in that the resource analysis modules A supports two or more south orientations to connect
Mouth agreement, the southbound interface agreement includes snmp protocol, NETFLOW agreement, SFLOW agreement and NetStream agreement.
4. system according to claim 3, which is characterized in that the service path sourcesink nodal information and bandwidth demand by
Service Processing Module provides, and IP network resource service condition provides by resource analysis modules A, optical-fiber network be pre-configured optical path information by
Optical-fiber network SDN controller provides.
5. system according to claim 4, which is characterized in that the SDN controller in IP network SDN controller passes through south orientation
Interface progress link discovery, Topology Management, policy development, list item issue operation, to complete management and configuration to vendor equipment；
The strategy configuration module supports two or more southbound interface agreements, the southbound interface agreement include OPENFLOW agreement,
NETCONF agreement and bgp protocol.
6. system according to claim 5, which is characterized in that the resource analysis module B is used for collection analysis optical-fiber network
Resource service condition, and optical network resource service condition is distributed to IP network SDN controller and provisioning module, it is specific to wrap
Include: resource analysis module B is by including that the southbound interface agreement of snmp protocol acquires optical network device information, including network section
Point, interface type, physical link, port address information, the resource analysis module B support two or more southbound interface agreements,
The southbound interface agreement includes snmp protocol, NETFLOW agreement, SFLOW agreement and NetStream agreement.
7. cooperateing with path activating method with optical-fiber network based on the IP network of SDN, which comprises the following steps:
Step 1: the resource analysis module B in optical-fiber network SDN controller classifies to optical network resource；
Step 2: the provisioning module in optical-fiber network SDN controller, which calculates and sets optical-fiber network, is pre-configured optical path；
Step 3:IP network SDN controller receives business road construction request, specifies the sourcesink nodal information of business transmission；
Step 4: if existing pre-configuration optical path can bearer service, enter step 6；It is needed if being pre-configured optical path and being unsatisfactory for business
It asks, enters step 5；
Step 5:IP network SDN controller sends service request to optical-fiber network SDN controller, pre- in optical-fiber network SDN controller
The configuration module pre-configuration optical path that meets bandwidth requirement new according to service request bandwidth calculation, and result is fed back into IP network
SDN controller；
Step 6:IP network SDN controller sets ip routing information according to the new pre-configuration optical path for meeting bandwidth requirement, and under
It is sent to IP device；
The foundation of business end-to-end path is carried out after the completion of step 7:IP routing and optical routing setting；
Step 8: the detection of optical-fiber network SDN controller is pre-configured optical path occupancy situation, and provisioning module, which calculates, supplements new pre-configuration
Optical path, and it is updated to resource analysis module B and resource analysis modules A.
8. the method according to the description of claim 7 is characterized in that step 1 includes: that optical network resource is divided into three classes, first
Class is to have occupied light path resource, that is, has been used for the resource of bearer service transformation task；Second class is to be pre-configured light path resource, this portion
Point resource is already allocated to pre-configuration optical path, when needing the sending down service carried to come, is pre-configured optical path and just directly initiates, complete
The formal road construction of optical path；Third class is unused resources, and the unused resources later period can be assigned to pre-configuration optical path.
9. according to the method described in claim 8, it is characterized in that, step 2 includes: that service fulfillment module is pre-configured optical-fiber network
Optical path, the pre-configuration optical path are pre-configured good corresponding optical routing between referring to two optical nodes in advance, and optical-fiber network SDN controller will
The optical path information being pre-configured between the two optical nodes informs IP network SDN controller, produces tool when the two optical nodes are practical
The data transmission requests of body, IP network SDN controller is routed according to the Calculation of Optical Path IP is pre-configured, then carries out the processing and biography of data
It is defeated, at this point, the provisioning module of optical-fiber network SDN controller needs to safeguard a pre-configuration optical path table, it is any for calculating, storing
The routing information and resource allocation conditions of optical path are pre-configured between two optical nodes；It is used for when being pre-configured optical path between two optical nodes
Bearer service, after resource is occupied, the provisioning module in optical-fiber network SDN controller can be according to network entirety resource service condition
It calculates in time, construct new pre-configuration optical path, calculating and the more new strategy for being pre-configured optical path are as follows:
Step 2-1: every light path resource service condition of statistics sets the pre- occupation value α of resource, that is, is pre-configured optical path occupied bandwidth
Size；When optical path idle bandwidth be lower than α, then the optical path is deleted from network topology, while more newly-generated new optical-fiber network is opened up
It flutters；
Step 2-2: the optical-fiber network topology generated based on step 2-1 calculates road for any two optical node shortest path first
Diameter is then chosen the highest one section of link of resource utilization on every shortest path and is carried out if there is two or more shortest paths
It is compared to each other, selects the lower shortest path of resource utilization as pre-configuration optical path；When the resource quilt for being pre-configured optical path
After occupancy, then every light path resource service condition is counted again, and calculate update and be pre-configured optical path.
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