CN105207906B - A kind of service path determines method and device - Google Patents
A kind of service path determines method and device Download PDFInfo
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- CN105207906B CN105207906B CN201410292709.3A CN201410292709A CN105207906B CN 105207906 B CN105207906 B CN 105207906B CN 201410292709 A CN201410292709 A CN 201410292709A CN 105207906 B CN105207906 B CN 105207906B
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Abstract
A kind of service path determines that method includes: according to the link information between Area Border Router and the bandwidth occupancy information between Area Border Router, determine that the first kind service path information for meeting the bandwidth demand of pre-set business, the first kind service path information include the information of each Area Border Router on the service path passed through needed for transmitting the business datum of pre-set business；According to the information for the first area border router and second area border router for belonging to the same area in the first kind service path information, information is indicated to the controller transmitting path demand for managing the region, indicates the determining business datum by pre-set business of the controller from each non-area border router on the path that the first area border router is transmitted to the second area border router.
Description
Technical field
The present invention relates to fields of communication technology more particularly to a kind of service path to determine method and device.
Background technique
Routing Protocol includes Interior Gateway Protocol (Interior Gateway Protocol, IGP) and Border Gateway Protocol
(Border Gateway Protocol, BGP).Wherein, BGP includes Internal BGP (Interior Border
Gateway Protocol, IBGP) and External BGP (Exterior Border Gateway Protocol,
EBGP).In multiprotocol label switching (Multi-Protocol Label Switch, MPLS) network, it usually needs deployment one
Item penetrates through the BGP label switching path (Label Switch Path, LSP) of access layer, convergence layer to core layer, makes business can
To realize the transmission of end-to-end (End to End, E2E).
As shown in Figure 1, in an mpls network, access layer and convergence layer form an autonomous system (Autonomous
System, AS) 1, core layer is individually for an autonomous system 2.Access layer, convergence layer and core layer are respectively as an area IGP
Domain.It is established between convergence layer and each Area Border Router of core layer by Router Reflector (Route Reflector, RR)
Connection.Execute EBGP between autonomous system 1 and autonomous system 2, in same AS between the difference region IGP (namely in difference
Between the Area Border Router in the region IGP) execute IBGP；IGP is being executed between each router in the identical region IGP.
MPLS network can be used for transfer of virtual private network (Virtual Private Network, VPN) business.
The different regions IGP is usually by different controller (controller 1, controller 2 and controller 3 as shown in figure 1) institutes
Management, therefore, when disposing the service path of pre-set business, respectively it is deployed in itself is managed by different controllers respectively
Region in transmit the path of the pre-set business.The controller in this difference region IGP disposes the mode of service path respectively
It often will lead to when business datum is transmitted between the different regions IGP and load contradiction occur.Such as, it is assumed that one VPN of transmission
The initiation region border router of the business datum of business is Area Border Router 9.Core layer is according to each in itself region IGP
Bandwidth occupancy situation between router has selected the path that remaining bandwidth resource is most between router, and the path is in the core
The terminal of layer is Area Border Router 7.Between the Area Border Router 7 and the Area Border Router 5 of convergence layer mutually
Connection, still, if remaining bandwidth resources can not carry this between the Area Border Router 7 and Area Border Router 5
Vpn service, will lead to the vpn service business datum can not Area Border Router of the normal transmission to access layer, Yong Huye
The business datum of this vpn service can not just be received.
To sum up, the transmission of business datum is reduced by the mode that the controller in the different regions IGP disposes service path respectively
Efficiency, in some instances it may even be possible to cause business datum can not normal transmission.
Summary of the invention
The embodiment of the present invention provides a kind of service path and determines method and device, to solve in the prior art by difference
The mode that the controller in the region IGP disposes service path respectively reduces the efficiency of transmission of business datum, in some instances it may even be possible to lead to industry
Be engaged in data can not normal transmission the problem of.
In a first aspect, providing a kind of service path determines method, comprising:
According to the link information between Area Border Router and the bandwidth occupancy between the Area Border Router
Information determines the first kind service path information for meeting the bandwidth demand of pre-set business, the first kind service path packet
Include the information of each Area Border Router on the service path passed through needed for the business datum for transmitting the pre-set business；
According in the determining first kind service path information belong to the same area first area border router and
The information of second area border router indicates information to the controller transmitting path demand for managing the same area；
Wherein, path requirement instruction information, which is used to indicate, manages the controller of described the same area and determines the second class industry
Business routing information；The second class service path information includes by the business datum of the pre-set business from the first area side
Boundary's router is transmitted to the information of each non-area border router on the path of the second area border router.
With reference to first aspect, in the first possible implementation, the Area Border Router includes: autonomous system
Border router ASBR and Interior Gateway Protocol Area Border Router ABR.
With reference to first aspect or the first possible implementation of first aspect, in second of possible implementation
In, the link information according between Area Border Router and the letter of the bandwidth occupancy between the Area Border Router
Breath determines the first kind service path information for meeting the bandwidth demand of pre-set business, comprising:
According to the link information between Area Border Router and the bandwidth occupancy between the Area Border Router
Information determines in the service path of the Area Border Router at connection both ends, meets the bandwidth demand of the pre-set business
The first kind service path information of at least two service paths；Wherein, the Area Border Router at the both ends is described default
The Area Border Router that the service providing end of business and service receiving end are separately connected；
Determine the first kind business road of the most service path of remaining bandwidth resource at least two service paths
Diameter information.
Second aspect provides a kind of service path and determines method, comprising:
Receive the first area in the region for being managed pre-set business from controller that the equipment for managing each controller is sent
Border router is transmitted to the path requirement instruction information of the second area border router in the region that the controller is managed；
Link information in the region managed according to path requirement instruction information, controller between router, with
And the bandwidth occupancy information in the region that is managed of the controller between router, determine the second class service path information；
Wherein, the router in region that the controller is managed includes Area Border Router and non-area boundary road
By device；The second class service path information includes by the business datum of the pre-set business from the first area border routing
Device is transmitted to the information of each non-area border router on the path of the second area border router.
In conjunction with second aspect, in the first possible implementation, information, controller are indicated according to the path requirement
Band in the region that link information and the controller in the region managed between router are managed between router
Wide occupied information determines the second class service path information, comprising:
Indicate that bandwidth requirement information, the controller of the pre-set business for including in information are managed according to the path requirement
Bandwidth in the region that link information and the controller in the region of reason between router are managed between router accounts for
With information, determines in the service path for connecting the first area border router and second area border router, meet institute
State the second class service path information of at least two service paths of the bandwidth demand of pre-set business；
Determine the second class business road of the most service path of remaining bandwidth resource at least two service paths
Diameter information.
The third aspect provides a kind of service path determining device, comprising:
Determining module, for according between Area Border Router link information and the Area Border Router it
Between bandwidth occupancy information, determine meet pre-set business bandwidth demand first kind service path information, the first kind industry
Business routing information includes each zone boundary routing on the service path passed through needed for the business datum for transmitting the pre-set business
The information of device；
Sending module, for belonging to the same area according in the determining first kind service path information of determining module
The information of first area border router and second area border router, to the controller transmitting path for managing the same area
Demand indicates information；
Wherein, path requirement instruction information, which is used to indicate, manages the controller of described the same area and determines the second class industry
Business routing information；The second class service path information includes by the business datum of the pre-set business from the first area side
Boundary's router is transmitted to the information of each non-area border router on the path of the second area border router.
In conjunction with the third aspect, in the first possible implementation, the Area Border Router includes: autonomous system
Border router ASBR and Interior Gateway Protocol Area Border Router ABR.
In conjunction with the possible implementation of the first of the third aspect or the third aspect, in second of possible implementation
In, the determining module is specifically used for: according between Area Border Router link information and Area Border Router it
Between bandwidth occupancy information, determine connection both ends Area Border Router service path in, meet the pre-set business
Bandwidth demand at least two service paths first kind service path information；Wherein, the zone boundary routing at the both ends
The Area Border Router that device is separately connected by the service providing end of the pre-set business and service receiving end；It determines described
In at least two service paths, the first kind service path information of the most service path of remaining bandwidth resource.
Fourth aspect provides a kind of service path determining device, comprising:
Receiving module, the area for being managed pre-set business from controller sent for receiving the equipment for managing each controller
The path that the first area border router in domain is transmitted to the second area border router in the region that the controller is managed needs
Seek instruction information；
Determining module, for being indicated in region that information, controller are managed between router according to the path requirement
Link information and the region that is managed of the controller in bandwidth occupancy information between router, determine the second class industry
Business routing information；
Wherein, the router in region that the controller is managed includes Area Border Router and non-area boundary road
By device；The second class service path information includes by the business datum of the pre-set business from the first area border routing
Device is transmitted to the information of each non-area border router on the path of the second area border router.
In conjunction with fourth aspect, in the first possible implementation, the determining module is specifically used for: according to the road
In the region that is managed of bandwidth requirement information, the controller for the pre-set business for including in diameter demand instruction information router it
Between the region that is managed of link information and the controller in bandwidth occupancy information between router, determine connection institute
In the service path for stating first area border router and second area border router, meet the bandwidth need of the pre-set business
Second class service path information of at least two service paths asked；Determine the tape remaining at least two service paths
Second class service path information of the most service path of wide resource.
5th aspect, provides a kind of service path determining device, comprising:
Processor, for according between Area Border Router link information and the Area Border Router between
Bandwidth occupancy information, determine meet pre-set business bandwidth demand first kind service path information, the first kind business
Routing information includes each Area Border Router on the service path passed through needed for the business datum for transmitting the pre-set business
Information；
Transmitter, for belonging to the first of the same area according in the determining first kind service path information of processor
The information of Area Border Router and second area border router, to the controller transmitting path demand for managing the same area
Indicate information；
Wherein, path requirement instruction information, which is used to indicate, manages the controller of described the same area and determines the second class industry
Business routing information；The second class service path information includes by the business datum of the pre-set business from the first area side
Boundary's router is transmitted to the information of each non-area border router on the path of the second area border router.
In conjunction with the 5th aspect, in the first possible implementation, the Area Border Router includes: autonomous system
Border router ASBR and Interior Gateway Protocol Area Border Router ABR.
In conjunction with the first possible implementation of the 5th aspect or the 5th aspect, in second of possible implementation
In, the processor is specifically used for: according between Area Border Router link information and Area Border Router between
Bandwidth occupancy information, determine connection both ends Area Border Router service path in, meet the pre-set business
The first kind service path information of at least two service paths of bandwidth demand；Wherein, the Area Border Router at the both ends
The Area Border Router being separately connected by the service providing end of the pre-set business and service receiving end；Determine it is described extremely
In few two service paths, the first kind service path information of the most service path of remaining bandwidth resource.
6th aspect, provides a kind of service path determining device, comprising:
Receiver, the region for being managed pre-set business from controller sent for receiving the equipment for managing each controller
First area border router be transmitted to the region that the controller is managed second area border router path requirement
Indicate information；
Processor, for according to the path requirement indicate in region that information, the controller are managed router it
Between the region that is managed of link information and the controller in bandwidth occupancy information between router, determine the second class
Service path information；Wherein, the router in region that the controller is managed includes Area Border Router and non-area
Border router；The second class service path information includes by the business datum of the pre-set business from the first area side
Boundary's router is transmitted to the information of each non-area border router on the path of the second area border router.
In conjunction with the 6th aspect, in the first possible implementation, the processor is specifically used for: according to the path
In the region that bandwidth requirement information, the controller for the pre-set business for including in demand instruction information are managed between router
Link information and the region that is managed of the controller in bandwidth occupancy information between router, determine described in connection
In the service path of first area border router and second area border router, meet the bandwidth demand of the pre-set business
At least two service paths the second class service path information；Determine the remaining bandwidth at least two service paths
Second class service path information of the most service path of resource.
Using the technical solution of above-described embodiment, the Area Border Router connected by each non-area border router
It is all by master controller according to the link information between each Area Border Router and the bandwidth between Area Border Router
Occupied information deployment, can guarantee in this way business datum can in the region that each sub-controller is managed normal transmission,
It avoids the occurrence of and is transmitted comparatively fast in the region that some sub-controllers are managed, but in the region that other sub-controllers are managed
But the case where can not transmitting appearance improves the efficiency of transmission of business datum so as to optimize service transmission path end to end.
Detailed description of the invention
Fig. 1 is structural schematic diagram interconnected between the router of MPLS network；
Fig. 2 is a kind of system architecture schematic diagram of the embodiment of the present invention；
Fig. 3 is the schematic network structure of each sub-controller of main controller controls in the embodiment of the present invention；
Fig. 4 is that the service path that the embodiment of the present invention one provides determines method flow diagram；
Fig. 5 is that service path provided by Embodiment 2 of the present invention determines method flow diagram；
Fig. 6 is that the service path that the embodiment of the present invention three provides determines method flow diagram；
Fig. 7 is the service path determining device structural schematic diagram that the embodiment of the present invention four provides；
Fig. 8 is the service path determining device structural schematic diagram that the embodiment of the present invention five provides；
Fig. 9 is the service path determining device structural schematic diagram that the embodiment of the present invention six provides；
Figure 10 is the service path determining device structural schematic diagram that the embodiment of the present invention seven provides.
Specific embodiment
As shown in Fig. 2, being the network system architecture schematic diagram of the embodiment of the present invention.The network system include master controller and
Multiple sub-controllers.The master controller is used to be that pre-set business determines first kind service path information, the first kind service path
Information includes the information of each Area Border Router on the path passed through needed for transmitting the business datum of the pre-set business.The son
Controller determines the second class according to the instruction of the master controller on the basis of first kind service path information that main control determines
Service path information.The second class service path information includes being managed the business datum of pre-set business from the sub-controller
The first area border router in region is transmitted to the road of the second area border router in the region that the sub-controller is managed
The information of each non-area border router on diameter.Here first area border router and second area border router be
Area Border Router in the first kind service path information.The master controller can be one or more.The master control
Device processed can be the equipment with network management or control function such as routing device, switching equipment or server.
As shown in figure 3, the equipment for managing other controllers is known as master controller in the embodiment of the present invention, what is be managed is each
A controller is known as sub-controller.That is, master controller manages each sub-controller, different sub-controllers manages different areas
Domain, region here specifically can be the region Interior Gateway Protocol (Interior Gateway Protocol, IGP).It is needing
When for a certain one service path of service deployment, master controller first according to the link information between Area Border Router with
And bandwidth occupancy information, dispose each region border routing that the service path for the bandwidth demand for meeting pre-set business is passed through
Device, then indicate the Area Border Router that sub-controller is passed through according to the service path that the master controller is disposed, deployment is respective
The non-area border router for transmitting the pre-set business in the region managed.Here, in the region that sub-controller is managed
The neighboring router that is connected of non-area border router be all router in one's respective area (including the non-area in one's respective area
Border router and Area Border Router).It is preset in the embodiment of the present invention since master controller can dispose good satisfaction first
Each region border router passed through in the service path of the bandwidth demand of business, thereby may be ensured that business datum can
The normal transmission in the region that each sub-controller is managed is avoided the occurrence of and is transmitted in the region that some sub-controllers are managed
Comparatively fast, the case where but can not being transmitted in the region that other sub-controllers are managed appearance, it is end-to-end so as to optimize
Service transmission path, improve the efficiency of transmission of business datum.
The embodiment of the present invention can be applied to the deployment of service path in MPLS network.Default industry in the embodiment of the present invention
Business specifically can be vpn service, the service path of deployment be properly termed as label switched path (Label Switch Path,
LSP).Specifically, include by the information that the path that each Area Border Router is identified is known as BGP LSP namely the BGP LSP
The information of each region border router.Any two Area Border Router connected by each non-area border router it
Between path be known as traffic engineering (Traffic Engineer, TE) LSP.In an mpls network, access layer, convergence layer and core
Layer is respectively as a region IGP.Pass through Router Reflector between convergence layer and each Area Border Router of core layer
(Route Reflector, RR) establishes connection.Access layer and convergence layer form autonomous system 1, and core layer is individually for an autonomy
System 2.Access layer, convergence layer and core layer are respectively as a region IGP.
For MPLS network, the Area Border Router in the embodiment of the present invention may include: between different autonomous system
Autonomous System Boundary Router, AS Boundary Router (Autonomous System Border Router, ASBR) and the difference region IGP between
IGP Area Border Router (Area Border Router, ABR).For example, in Fig. 3, Area Border Router 1, zone boundary
Router 2, Area Border Router 3, Area Border Router 4, Area Border Router 9 and Area Border Router 10 are
ABR, Area Border Router 5, Area Border Router 6, Area Border Router 7 and Area Border Router 8 are ASBR.No
With the Routing Protocol used when exchanging routing iinformation between the ASBR in AS for External BGP (Exterior
Border Gateway Protocol, EBGP)；Between ABR in same AS, between ABR and ASBR and in same AS
The Routing Protocol used when exchanging routing iinformation between ASBR is Internal BGP (Interior Border
Gateway Protocol, IBGP)；In the same region IGP, the routing used when exchanging routing iinformation between each router is assisted
View is IGP.
With reference to the accompanying drawings of the specification, the embodiment of the present invention is described in further detail；
As shown in figure 4, the service path that the embodiment of the present invention one provides determines method, comprising:
S401: master controller according between Area Border Router link information and Area Border Router between
Bandwidth occupancy information determines the first kind service path information for meeting the bandwidth demand of pre-set business, first kind business road
Diameter information includes each Area Border Router on the service path for the required process of business datum for transmitting the pre-set business
Information.
In S401, service providing end can pass through master controller when providing business service for the pre-set business
The input interface of offer inputs every service parameter, which may include the bandwidth demand of the pre-set business, and
Area Border Router that the service providing end of the pre-set business and service receiving end respectively connect (hereinafter referred to as both ends
Area Border Router) information.Here, the information of the Area Border Router at both ends can specifically include the regional edge at both ends
One or more of mark, the address Internet protocol (Internet Protocol, IP) of boundary's router etc..
Master controller needs the business for considering to meet pre-set business demand when determining the first kind service path information
Between different zones border router on path link information (namely deployment each border router topology information) with
And meet bandwidth occupancy information (such as remaining band between Area Border Router on the service path of pre-set business demand
Wide resource).For example, being directed to a certain vpn service, master controller can be determined to that the both ends of this vpn service will be transmitted first
The a plurality of BGP LSP that connects of Area Border Router；Again in this plurality of BGP LSP, current residual transmission belt is selected
Wide resource can satisfy the BGP LSP of the bandwidth demand of this vpn service.Here, the current residual transmission bandwidth resource of selection
Can satisfy include in the information of the BGP LSP of the bandwidth demand of this vpn service the BGP LSP by selection each area
The information of domain border router；Here the information of Area Border Router may include the mark of Area Border Router, IP
Address, the Area Border Router serial number (for example, by the service path for transmitting a certain business each zone boundary route
Device successively sorts the Area Border Router connected since service providing end, obtains the sequence of each Area Border Router
One or more of number) etc..
S402: the master controller is according to first of ownership the same area in the determining first kind service path information
The information of Area Border Router and second area border router is needed to the sub-controller transmitting path for managing the same area
Seek instruction information；Wherein, path requirement instruction information, which is used to indicate, manages the sub-controller of described the same area and determines the
Two class service path information；The second class service path information includes by the business datum of the pre-set business from described first
Area Border Router is transmitted to the information of each non-area border router on the path of the second area border router.
Described " the same area " can be the same region IGP.
In S402, master controller is described default according to the first kind service path information determined in S401, namely transmission
The information of each Area Border Router of business, to each region corresponding to each Area Border Router (such as the region IGP)
Sub-controller transmitting path demand indicates information, and it is each non-on the path for transmitting the pre-set business to indicate that each sub-controller determines
The information of Area Border Router.Here the information of non-area border router may include the mark of non-area border router
Knowledge, IP address, the non-area border router serial number (for example, by the business datum of a certain business from first area boundary
Router is transmitted to each non-area border router on the path of second area border router, from first area border routing
The non-area border router that device is connected starts successively to sort, and obtains the serial number of each non-area border router) etc. in
It is one or more.
Sub-controller needs to consider each router in managed region when determining the second class service path information
Between link information (namely topology information of each Area Border Router of deployment, each non-area border router) and each
Bandwidth occupancy information (such as remaining bandwidth resources) between router.For example, being directed to a certain vpn service, master controller refers to
Show that some sub-controller determines the TE LSP between specified two Area Border Router in a BGP LSP.Son control
Device can be determined to a plurality of TE LSP for connecting two specified Area Border Routers first, then refer in connection
Current residual transmission bandwidth resource is selected to can satisfy this VPN in this plurality of TE LSP of two fixed Area Border Routers
The TE LSP of the bandwidth demand of business.
By taking the framework of Fig. 3 as an example, it is assumed that the Area Border Router that the service providing end of the pre-set business is connected is
Area Border Router 9, the Area Border Router that service receiving end is connected are Area Border Router 1.The pre-set business
Required minimum transfer bandwidth is 100M.Master controller according between each Area Border Router link information and each area
Bandwidth occupancy information between domain border router is determined for compliance with the first kind service path of the bandwidth demand of the pre-set business
Information.For example, minimum transfer bandwidth required by pre-set business is 100M.It is routed from Area Border Router 8 to zone boundary
The remaining bandwidth in the path of device 6 is 80M, the remaining bandwidth in path from Area Border Router 7 to Area Border Router 5
For 120M, therefore, this paths of 8 → Area Border Router of Area Border Router 6 do not meet the bandwidth demand of pre-set business,
This paths of 7 → Area Border Router of Area Border Router 5 meet the bandwidth demand of pre-set business.In addition, from regional edge
The remaining bandwidth in path of boundary's router 5 to Area Border Router 4 is 130M, from Area Border Router 4 to zone boundary
The remaining bandwidth in the path of router 1 is 80M, therefore, 5 → Area Border Router of Area Border Router, 4 → zone boundary
This paths of router 1 do not meet the bandwidth demand of pre-set business；From Area Border Router 5 to Area Border Router 3
The remaining bandwidth in path is 120M, and the remaining bandwidth in path from Area Border Router 3 to Area Border Router 1 is
140M, therefore, 5 → Area Border Router of Area Border Router, 3 → Area Border Router, 1 this paths meet default industry
The bandwidth demand of business.Finally, master controller determines that business is provided when the pre-set business is transmitted to business receiving end in end and is passed through
Each Area Border Router be successively 5 → area of Area Border Router 9 → Area Border Router, 7 → Area Border Router
3 → Area Border Router of domain border router 1.
Each sub-controller hair belonging to each Area Border Router of the master controller on the path for transmitting the pre-set business
It send path requirement to indicate information, successively indicates the son in the region between management region border router 9 and Area Border Router 7
Controller 3, which is determined, is transmitted to the second of Area Border Router 7 from Area Border Router 9 for the business datum of the pre-set business
Class service path information indicates the sub-controller 2 in the region between management region border router 5 and Area Border Router 3
Determine that the business datum by the pre-set business is transmitted to the second class business of Area Border Router 3 from Area Border Router 5
Routing information, the sub-controller 1 in the region between instruction management region border router 3 and Area Border Router 1 determines will
The business datum of the pre-set business is transmitted to the second class service path letter of Area Border Router 1 from Area Border Router 3
Breath.Here the second class service path information include some sub-controller management region in transmit on the path of the pre-set business
Each non-area border router information.
Using the technical solution of above-described embodiment, the Area Border Router connected by each non-area border router
It is all by master controller according to the link information between each Area Border Router and the bandwidth between Area Border Router
Occupied information deployment, can guarantee in this way business datum can in the region that each sub-controller is managed normal transmission,
It avoids the occurrence of and is transmitted comparatively fast in the region that some sub-controllers are managed, but in the region that other sub-controllers are managed
But the case where can not transmitting appearance improves the efficiency of transmission of business datum so as to optimize service transmission path end to end.
In the specific implementation process, in order to improve business efficiency of transmission, each service path can also be carried out to load
Weighing apparatus.When there is currently the service path of a plurality of bandwidth demand for meeting the pre-set business, current residual bandwidth can choose
The most service path of resource.It will be described in more detail in following embodiment two.
As shown in figure 5, service path provided by Embodiment 2 of the present invention determines method, comprising:
S501: master controller is according to the link information between Area Border Router, the band between Area Border Router
The bandwidth requirement information of wide occupied information and pre-set business determines the service path in the Area Border Router at connection both ends
In, meet the first kind service path information of at least two service paths of the bandwidth demand of the pre-set business, described first
Class service path information includes the information of each Area Border Router on the service path for transmit the pre-set business；Wherein,
The area that the Area Border Router at the both ends is separately connected by the service providing end of the pre-set business and service receiving end
Domain border router；
S502: master controller is at least two service paths, the most service path of selection remaining bandwidth resource.
It is pre- described in the service parameter for the pre-set business that master controller can be inputted according to user first in S501 and S502
If the IP address of Area Border Router that the service providing end of business and service receiving end respectively connect and pre-set business
The bandwidth occupancy between link information and Area Border Router between bandwidth requirement information and each Area Border Router
Information is determined to the more of bandwidth demand connecting the Area Border Router at both ends, meeting the pre-set business
Service path.Again connection both ends a plurality of service path in, selection can satisfy the setting business bandwidth demand and
The most service path of current residual bandwidth resources.
Here, the service path that can satisfy the bandwidth demand of the pre-set business not only may include current residual bandwidth
Resource can satisfy the service path of the bandwidth demand of the pre-set business, can also include that current residual bandwidth resources are not enough to
Meet the bandwidth demand of the pre-set business but can could be adjusted to meet institute by the bandwidth currently used to other business
State the service path of the bandwidth demand of pre-set business.For example, the required minimum bandwidth of pre-set business A be 100M, certain
Service path remaining bandwidth is 80M, and a certain business B bandwidth currently in use carried on this service path is 200M, still
The required minimum bandwidth of this business B is 150M, then can be 180M by this business B currently used Bandwidth adjustment, this
Sample, this service path remaining bandwidth are 80M+200M-180M=100M, can satisfy the bandwidth demand of pre-set business A.
S503: the master controller is according to determining first kind service path information, on the service path with selection
The relevant each sub-controller transmitting path demand of Area Border Router indicates information.
S504: sub-controller relevant to the Area Border Router on the service path of selection receives master controller and sends
, pre-set business is transmitted to the sub-controller pipe from the first area border router in the region IGP of the sub-controller management
The path requirement of the second area border router in the region IGP of reason indicates information；Here first area border router and
Second area border router is the Area Border Router on the service path of master controller selection.
S505: the sub-controller relevant to Area Border Router on the service path of selection is according to the path
In the region that bandwidth requirement information, the controller for the pre-set business for including in demand instruction information are managed between router
Link information and the region IGP that is managed of the controller in bandwidth occupancy information between router, determine connection institute
In the service path for stating first area border router and second area border router, meet the bandwidth need of the pre-set business
Second class service path information of at least two service paths asked；The second class service path information includes will be described default
The business datum of business is transmitted to each non-area of the second area border router from the first area border router
The information of border router.
S506: the sub-controller relevant to Area Border Router on the service path of selection determines in S505
At least two service paths in, the second class service path information of the most service path of remaining bandwidth resource.
The implementing though of S505~S506 is similar to S501~S502, in the specific implementation process, in order to as far as possible will be a plurality of
The bandwidth resources of service path carry out balanced utilization, and sub-controller is when determining the second class service path information, Ke Yi
Meet in a plurality of service path of the bandwidth demand of pre-set business, the service path for selecting current residual bandwidth resources most.
Based on the same inventive concept, following embodiment of the present invention provides the service path determination side based on sub-controller side
Method, specific implementation is similar to the aforementioned embodiment, repeats place, repeats no more.
As shown in fig. 6, determining method flow diagram for the service path that the embodiment of the present invention three provides, comprising:
S601: sub-controller receives the by pre-set business from the region that the sub-controller is managed that master controller is sent
The path requirement that one Area Border Router is transmitted to the second area border router in the region that the sub-controller is managed refers to
Show information.Here, the region that sub-controller is managed specifically can be the region IGP.
S602: it is routed in the region that sub-controller is managed according to path requirement instruction information, the sub-controller
Bandwidth occupancy information in the region that link information and the sub-controller between device are managed between router determines
Second class service path information；Wherein, the router in region that the sub-controller is managed includes Area Border Router
With non-area border router；The second class service path information includes by the business datum of the pre-set business from described
One Area Border Router is transmitted to the letter of each non-area border router on the path of the second area border router
Breath.
Optionally, in S602, the sub-controller indicates that information, the sub-controller are managed according to the path requirement
Region in bandwidth in the region that is managed of link information between router and the sub-controller between router account for
With information, the second class service path information is determined, comprising:
The bandwidth requirement information for the pre-set business that the sub-controller indicates to include in information according to the path requirement, institute
State the link information in the region that controller is managed between router and region that the controller is managed in router
Between bandwidth occupancy information, determine the business road for connecting the first area border router and second area border router
In diameter, meet the second class service path information of at least two service paths of the bandwidth demand of the pre-set business；
The sub-controller is determining at least two service paths, the most service path of remaining bandwidth resource
Second class service path information.
Based on the same inventive concept, the embodiment of the invention also provides a kind of determines the corresponding business of method with service path
Path determining device, since the principle that the device solves the problems, such as determines that method is similar to service path of the embodiment of the present invention,
The implementation of the device may refer to the implementation of method, and overlaps will not be repeated.
As shown in fig. 7, for the service path determining device structural schematic diagram that the embodiment of the present invention four provides, including determine mould
Block 71 and sending module 72.
The determining module 71, for according to the link information and zone boundary routing between Area Border Router
Bandwidth occupancy information between device, the first kind service path information of the determining bandwidth demand for meeting pre-set business, described first
Class service path information includes each zone boundary on the service path passed through needed for the business datum for transmitting the pre-set business
The information of router.
The sending module 72, for same according to belonging in the determining first kind service path information of determining module 71
The first area border router in region and the information of second area border router, to the controller hair for managing the same area
Path requirement is sent to indicate information.The same area can be the region same Interior Gateway Protocol IGP.
Wherein, path requirement instruction information, which is used to indicate, manages the controller of described the same area and determines the second class industry
Business routing information；The second class service path information includes by the business datum of the pre-set business from the first area side
Boundary's router is transmitted to the information of each non-area border router on the path of the second area border router.
Optionally, the Area Border Router includes: Autonomous System Boundary Router, AS Boundary Router ASBR and Interior Gateway Protocol area
Domain border router ABR.
Optionally, the determining module 71 is specifically used for:
According to the link information between Area Border Router and the bandwidth occupancy information between Area Border Router,
It determines in the service path of the Area Border Router at connection both ends, meets at least the two of the bandwidth demand of the pre-set business
The first kind service path information of service path；Wherein, the Area Border Router at the both ends is the pre-set business
The Area Border Router that service providing end and service receiving end are separately connected；
Determine the first kind business road of the most service path of remaining bandwidth resource at least two service paths
Diameter information.
As shown in figure 8, for the service path determining device structural schematic diagram that the embodiment of the present invention five provides, including receive mould
Block 81 and determining module 82.
Receiving module 81 is managed pre-set business from controller for receive that the equipment for managing each controller sends
The first area border router in region is transmitted to the path of the second area border router in the region that the controller is managed
Demand indicates information.The region that the controller is managed can be the region Interior Gateway Protocol IGP.
Determining module 82, for indicating router in region that information, the controller are managed according to the path requirement
Between the region that is managed of link information and the controller in bandwidth occupancy information between router, determine second
Class service path information.
Wherein, the router in region that the controller is managed includes Area Border Router and non-area boundary road
By device；The second class service path information includes by the business datum of the pre-set business from the first area border routing
Device is transmitted to the information of each non-area border router on the path of the second area border router.
Optionally, the determining module 82 is specifically used for: the default industry for including in information is indicated according to the path requirement
Link information and the controller in the region that the bandwidth requirement information of business, the controller are managed between router
Bandwidth occupancy information in the region managed between router determines and connects the first area border router and the secondth area
In the service path of domain border router, meet the second class of at least two service paths of the bandwidth demand of the pre-set business
Service path information；Determine the second class of the most service path of remaining bandwidth resource at least two service paths
Service path information.
As shown in figure 9, for the service path determining device structural schematic diagram that the embodiment of the present invention six provides, including processor
91 and transmitter 92.
Processor 91, for according between Area Border Router link information and the Area Border Router it
Between bandwidth occupancy information, determine meet pre-set business bandwidth demand first kind service path information, the first kind industry
Business routing information includes each zone boundary routing on the service path passed through needed for the business datum for transmitting the pre-set business
The information of device.Described the same area can be the region same Interior Gateway Protocol IGP.
Transmitter 92, for belonging to the same area according in the determining first kind service path information of processor 91
The information of first area border router and second area border router, to the controller transmitting path for managing the same area
Demand indicates information.
Wherein, path requirement instruction information, which is used to indicate, manages the controller of described the same area and determines the second class industry
Business routing information；The second class service path information includes by the business datum of the pre-set business from the first area side
Boundary's router is transmitted to the information of each non-area border router on the path of the second area border router.
Optionally, the Area Border Router includes: Autonomous System Boundary Router, AS Boundary Router ASBR and Interior Gateway Protocol area
Domain border router ABR.
Optionally, the processor 91 is specifically used for: according between Area Border Router link information and region
Bandwidth occupancy information between border router determines in the service path of the Area Border Router at connection both ends, meets
The first kind service path information of at least two service paths of the bandwidth demand of the pre-set business；Wherein, the both ends
The zone boundary that Area Border Router is separately connected by the service providing end of the pre-set business and service receiving end routes
Device；It determines at least two service paths, the first kind service path of the most service path of remaining bandwidth resource is believed
Breath.
As shown in Figure 10, the service path determining device structural schematic diagram provided for the embodiment of the present invention seven, including receive
Device 101 and processor 102.
Receiver 101 is managed pre-set business from controller for receive that the equipment for managing each controller sends
The first area border router in region is transmitted to the path of the second area border router in the region that the controller is managed
Demand indicates information.The region of the controller management can be the region Interior Gateway Protocol IGP.
Processor 102, for indicating router in region that information, the controller are managed according to the path requirement
Between the region that is managed of link information and the controller in bandwidth occupancy information between router, determine second
Class service path information；Wherein, the router in region that the controller is managed includes Area Border Router and non-area
Domain border router；The second class service path information includes by the business datum of the pre-set business from the first area
Border router is transmitted to the information of each non-area border router on the path of the second area border router.
Optionally, the processor 102 is specifically used for: the pre-set business for including in information is indicated according to the path requirement
Bandwidth requirement information, the link information in the region that is managed of the controller between router and controller institute
Bandwidth occupancy information in the region of management between router determines and connects the first area border router and second area
In the service path of border router, meet the second class industry of at least two service paths of the bandwidth demand of the pre-set business
Business routing information；Determine the second class industry of the most service path of remaining bandwidth resource at least two service paths
Business routing information.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of device (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (15)
1. a kind of service path determines method, which is characterized in that this method comprises:
According to the link information between Area Border Router and the bandwidth occupancy information between the Area Border Router,
Determine that the first kind service path information for meeting the bandwidth demand of pre-set business, the first kind service path information include transmission
The information of each Area Border Router on service path passed through needed for the business datum of the pre-set business；
According to the first area border router and second for belonging to the same area in the determining first kind service path information
The information of Area Border Router indicates information to the controller transmitting path demand for managing the same area；
Wherein, path requirement instruction information, which is used to indicate, manages the controller of described the same area and determines the second class business road
Diameter information；The second class service path information includes by the business datum of the pre-set business from first area boundary road
The information of each non-area border router on the path of the second area border router is transmitted to by device.
2. the method as described in claim 1, which is characterized in that the Area Border Router includes: autonomous system boundary road
By device ASBR and Interior Gateway Protocol Area Border Router ABR.
3. method according to claim 1 or 2, which is characterized in that the connection according between Area Border Router is believed
Bandwidth occupancy information between breath and the Area Border Router determines the first kind for meeting the bandwidth demand of pre-set business
Service path information, comprising:
According to the link information between the Area Border Router and the bandwidth occupancy between the Area Border Router
Information determines in the service path of the Area Border Router at connection both ends, meets the bandwidth demand of the pre-set business
The first kind service path information of at least two service paths；Wherein, the Area Border Router at the both ends is described default
The Area Border Router that the service providing end of business and service receiving end are separately connected；
It determines at least two service paths, the first kind service path of the most service path of remaining bandwidth resource is believed
Breath.
4. a kind of service path determines method characterized by comprising
Receive the first area boundary in the region for being managed pre-set business from controller that the equipment for managing each controller is sent
Router is transmitted to the path requirement instruction information of the second area border router in the region that the controller is managed, the road
Diameter demand instruction information is according to the first area border router and for belonging to the same area in first kind service path information
What the information of two Area Border Routers determined, the first kind service path information is according between Area Border Router
What the bandwidth occupancy information between link information and the Area Border Router determined；
Link information in the region managed according to path requirement instruction information, controller between router, Yi Jisuo
The bandwidth occupancy information in the region that controller is managed between router is stated, determines the second class service path information；
Wherein, the router in region that the controller is managed includes Area Border Router and non-area border routing
Device；The second class service path information includes by the business datum of the pre-set business from the first area border router
It is transmitted to the information of each non-area border router on the path of the second area border router.
5. method as claimed in claim 4, which is characterized in that indicate that information, controller are managed according to the path requirement
Region in bandwidth occupancy in the region that is managed of link information between router and the controller between router
Information determines the second class service path information, comprising:
Indicate that bandwidth requirement information, the controller of the pre-set business for including in information are managed according to the path requirement
Bandwidth occupancy letter in the region that link information and the controller in region between router are managed between router
Breath determines in the service path for connecting the first area border router and second area border router, meets described pre-
If the second class service path information of at least two service paths of the bandwidth demand of business；
It determines at least two service paths, the second class service path of the most service path of remaining bandwidth resource is believed
Breath.
6. a kind of service path determining device, which is characterized in that the device includes:
Determining module, for according between Area Border Router link information and the Area Border Router between
Bandwidth occupancy information determines the first kind service path information for meeting the bandwidth demand of pre-set business, first kind business road
Diameter information includes each Area Border Router on the service path passed through needed for the business datum for transmitting the pre-set business
Information；
Sending module, for belonging to the first of the same area according in the determining first kind service path information of determining module
The information of Area Border Router and second area border router, to the controller transmitting path demand for managing the same area
Indicate information；
Wherein, path requirement instruction information, which is used to indicate, manages the controller of described the same area and determines the second class business road
Diameter information；The second class service path information includes by the business datum of the pre-set business from first area boundary road
The information of each non-area border router on the path of the second area border router is transmitted to by device.
7. device as claimed in claim 6, which is characterized in that the Area Border Router includes: autonomous system boundary road
By device ASBR and Interior Gateway Protocol Area Border Router ABR.
8. device as claimed in claims 6 or 7, which is characterized in that the determining module is specifically used for: according to the regional edge
The bandwidth occupancy information between link information and the Area Border Router between boundary's router determines at connection both ends
Area Border Router service path in, meet the of at least two articles service paths of the bandwidth demand of the pre-set business
A kind of service path information；Wherein, the Area Border Router at the both ends is the service providing end kimonos of the pre-set business
The Area Border Router that business receiving end is separately connected；Determine the remaining bandwidth resource at least two service paths
The first kind service path information of most service paths.
9. a kind of service path determining device, which is characterized in that the device includes:
Receiving module, the region for being managed pre-set business from controller sent for receiving the equipment for managing each controller
The path requirement that first area border router is transmitted to the second area border router in the region that the controller is managed refers to
Show that information, the path requirement instruction information are according to the first area side for belonging to the same area in first kind service path information
What the information of boundary's router and second area border router determined, the first kind service path information is according to zone boundary
What the bandwidth occupancy information between the link information and the Area Border Router between router determined；
Determining module, for being indicated in region that information, the controller are managed between router according to the path requirement
Link information and the region that is managed of the controller in bandwidth occupancy information between router, determine the second class industry
Business routing information；
Wherein, the router in region that the controller is managed includes Area Border Router and non-area border routing
Device；The second class service path information includes by the business datum of the pre-set business from the first area border router
It is transmitted to the information of each non-area border router on the path of the second area border router.
10. device as claimed in claim 9, which is characterized in that the determining module is specifically used for: according to the path requirement
Company in the region that bandwidth requirement information, the controller for the pre-set business for including in instruction information are managed between router
Connect information and region that the controller is managed in bandwidth occupancy information between router, determine connection described first
In the service path of Area Border Router and second area border router, meet the bandwidth demand of the pre-set business extremely
Second class service path information of few two service paths；Determine the remaining bandwidth resource at least two service paths
Second class service path information of most service paths.
11. a kind of service path determining device, which is characterized in that the device includes:
Processor, for according to the link information between Area Border Router and the band between the Area Border Router
Wide occupied information determines the first kind service path information for meeting the bandwidth demand of pre-set business, the first kind service path
Information includes the letter of each Area Border Router on the service path passed through needed for the business datum for transmitting the pre-set business
Breath；
Transmitter, for according to the first area for belonging to the same area in the determining first kind service path information of processor
The information of border router and second area border router, to the controller transmitting path demand instruction for managing the same area
Information；
Wherein, path requirement instruction information, which is used to indicate, manages the controller of described the same area and determines the second class business road
Diameter information；The second class service path information includes by the business datum of the pre-set business from first area boundary road
The information of each non-area border router on the path of the second area border router is transmitted to by device.
12. device as claimed in claim 11, which is characterized in that the Area Border Router includes: autonomous system boundary
Router ASBR and Interior Gateway Protocol Area Border Router ABR.
13. the device as described in claim 11 or 12, which is characterized in that the processor is specifically used for: according to zone boundary
The bandwidth occupancy information between link information and the Area Border Router between router determines at connection both ends
In the service path of Area Border Router, meet the first of at least two service paths of the bandwidth demand of the pre-set business
Class service path information；Wherein, the Area Border Router at the both ends is the service providing end and service of the pre-set business
The Area Border Router that receiving end is separately connected；It determines at least two service paths, remaining bandwidth resource is most
The first kind service path information of more service paths.
14. a kind of service path determining device, which is characterized in that the device includes:
Receiver, for receiving the of the region for being managed pre-set business from controller that the equipment for managing each controller is sent
One Area Border Router is transmitted to the path requirement instruction of the second area border router in the region that the controller is managed
Information, the path requirement instruction information are according to the first area boundary for belonging to the same area in first kind service path information
What the information of router and second area border router determined, the first kind service path information is according to zone boundary road
It is determined by the link information between device and the bandwidth occupancy information between the Area Border Router；
Processor, for indicating the connection in region that information, controller are managed between router according to the path requirement
Bandwidth occupancy information in the region that information and the controller are managed between router determines the second class service path
Information；Wherein, the router in region that the controller is managed includes Area Border Router and non-area border routing
Device；The second class service path information includes by the business datum of the pre-set business from the first area border router
It is transmitted to the information of each non-area border router on the path of the second area border router.
15. device as claimed in claim 14, which is characterized in that the processor is specifically used for: according to the path requirement
Company in the region that bandwidth requirement information, the controller for the pre-set business for including in instruction information are managed between router
Connect information and region that the controller is managed in bandwidth occupancy information between router, determine connection described first
In the service path of Area Border Router and second area border router, meet the bandwidth demand of the pre-set business extremely
Second class service path information of few two service paths；Determine the remaining bandwidth resource at least two service paths
Second class service path information of most service paths.
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| CN201410292709.3A CN105207906B (en) | 2014-06-25 | 2014-06-25 | A kind of service path determines method and device |
| PCT/CN2015/080426 WO2015196898A1 (en) | 2014-06-25 | 2015-05-30 | Service path determining method and device |
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| CN201410292709.3A CN105207906B (en) | 2014-06-25 | 2014-06-25 | A kind of service path determines method and device |
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| US10277505B2 (en) * | 2016-03-30 | 2019-04-30 | Juniper Networks, Inc. | Routing inter-AS LSPs with centralized controller |
| CN106878170B (en) * | 2016-12-29 | 2020-04-21 | 北京华为数字技术有限公司 | Method and device for determining forwarding path |
| CN110636008B (en) * | 2018-06-22 | 2022-02-08 | 中国电信股份有限公司 | Network topology information acquisition method, network topology construction system and boundary router |
| CN114915591B (en) * | 2021-01-28 | 2023-05-02 | 中国电信股份有限公司 | End-to-end service guarantee method and system |
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| CN101247322A (en) * | 2007-02-14 | 2008-08-20 | 华为技术有限公司 | Method and network appliance for route computation between autonomy systems |
| CN102780605A (en) * | 2011-05-13 | 2012-11-14 | 中国科学院声学研究所 | Inter-area exit route dynamic selection method and system |
| CN103379032A (en) * | 2012-04-24 | 2013-10-30 | 中兴通讯股份有限公司 | Acquisition method and device for cross-domain end-to-end route and secondary route computation element |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8320255B2 (en) * | 2005-02-02 | 2012-11-27 | Cisco Technology, Inc. | Inter-domain path computation technique |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101247322A (en) * | 2007-02-14 | 2008-08-20 | 华为技术有限公司 | Method and network appliance for route computation between autonomy systems |
| CN102780605A (en) * | 2011-05-13 | 2012-11-14 | 中国科学院声学研究所 | Inter-area exit route dynamic selection method and system |
| CN103379032A (en) * | 2012-04-24 | 2013-10-30 | 中兴通讯股份有限公司 | Acquisition method and device for cross-domain end-to-end route and secondary route computation element |
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