CN105207906A - Service path determining method and device - Google Patents
Service path determining method and device Download PDFInfo
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- CN105207906A CN105207906A CN201410292709.3A CN201410292709A CN105207906A CN 105207906 A CN105207906 A CN 105207906A CN 201410292709 A CN201410292709 A CN 201410292709A CN 105207906 A CN105207906 A CN 105207906A
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Abstract
The invention relates to a service path determining method. The method includes the following steps that: a first type of service path information which satisfies bandwidth requirement of preset services, is determined according to connection between area border routers and bandwidth occupation information between the area border routers, wherein the first type of service path information contains the information of area border routers on a service path, service data of the preset services being transmitted through the service path; and path demand indicating information is transmitted to a controller for managing the same area to which a first area border router and a second area border router belong according to the information of the first area border router and the second area border router which belong to the same area in the first type of service path information, and the controller is instructed to determine transmitting the service data of the preset services to non-area border routers on the path of the second area border router from the first area border router.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of service path defining method and device.
Background technology
Routing Protocol comprises Interior Gateway Protocol (InteriorGatewayProtocol, IGP) and Border Gateway Protocol (BorderGatewayProtocol, BGP).Wherein, BGP comprises Internal BGP (InteriorBorderGatewayProtocol, IBGP) and External BGP (ExteriorBorderGatewayProtocol, EBGP).At multiprotocol label switching (Multi-ProtocolLabelSwitch, MPLS) in network, usually need deployment through Access Layer, convergence-level to the BGP label switched path (LabelSwitchPath of core layer, LSP), make business can realize the transmission of end-to-end (EndtoEnd, E2E).
As shown in Figure 1, in an mpls network, Access Layer and convergence-level form an autonomous system (AutonomousSystem, AS) 1, and core layer is separately an autonomous system 2.Access Layer, convergence-level and core layer are separately as an IGP region.Connected by Router Reflector (RouteReflector, RR) between convergence-level and each Area Border Router of core layer.Between autonomous system 1 and autonomous system 2, perform EBGP, in same AS, between different I GP region, (also namely between the Area Border Router in different I GP region) performs IBGP; IGP is performed between each router in identical IGP region.MPLS network may be used for transfer of virtual private network (VirtualPrivateNetwork, VPN) business.
Different IGP regions be generally by different controllers (as Fig. 1 middle controller 1, controller 2 and controller 3) manage, therefore, when disposing the service path of pre-set business, be deployed in the path of transmitting described pre-set business in the region self managed respectively separately by different controllers.Load contradiction is there is in the mode that service path disposed respectively by the controller in this different I GP region when business datum often can be caused to transmit between different I GP region.Such as, suppose that the initiation region border router of the business datum of a transmission VPN traffic is Area Border Router 9.Core layer have selected according to the bandwidth occupancy situation in self IGP region between each router the path that between router, remaining bandwidth resource is maximum, and this path is Area Border Router 7 at the terminal of this core layer.Be interconnected between this Area Border Router 7 and Area Border Router 5 of convergence-level, but, if remaining bandwidth resources cannot carry this VPN traffic between this Area Border Router 7 and Area Border Router 5, can cause this VPN traffic business datum cannot normal transmission to the Area Border Router of Access Layer, user also just cannot receive the business datum of this VPN traffic.
To sum up, the mode of disposing service path respectively by the controller in different I GP region reduces the efficiency of transmission of business datum, even may cause business datum cannot normal transmission.
Summary of the invention
The embodiment of the present invention provides a kind of service path defining method and device, reduce the efficiency of transmission of business datum in order to solve the mode of disposing service path respectively by the controller in different I GP region in prior art, even may cause business datum cannot the problem of normal transmission.
First aspect, provides a kind of service path defining method, comprising:
According to the link information between Area Border Router and the bandwidth occupancy information between described Area Border Router, determine the first kind service path information of the bandwidth demand meeting pre-set business, described first kind service path information comprise transmit described pre-set business business datum needed for process service path on the information of each Area Border Router;
The first area border router of the same area and the information of second area border router is belonged to, to the controller transmit path demand indication information of this same area of management according in the described first kind service path information determined;
Wherein, described path requirement indication information is used to indicate the controller determination Equations of The Second Kind service path information managing described the same area; Described Equations of The Second Kind service path information comprises the information business datum of described pre-set business being transferred to each non-area border router the path of described second area border router from described first area border router.
In conjunction with first aspect, in the implementation that the first is possible, described Area Border Router comprises: Autonomous System Boundary Router, AS Boundary Router ASBR and Interior Gateway Protocol Area Border Router ABR.
In conjunction with first aspect, or the first possible implementation of first aspect, in the implementation that the second is possible, described according to the link information between Area Border Router and the bandwidth occupancy information between described Area Border Router, determine the first kind service path information of the bandwidth demand meeting pre-set business, comprising:
According to the link information between Area Border Router and the bandwidth occupancy information between described Area Border Router, determine, in the service path of the Area Border Router connecting two ends, to meet the first kind service path information of at least two service paths of the bandwidth demand of described pre-set business; Wherein, the Area Border Router that the service providing end that the Area Border Router at described two ends is described pre-set business is connected respectively with service receiving terminal;
Determine in described at least two service paths, the first kind service path information of the service path that remaining bandwidth resource is maximum.
Second aspect, provides a kind of service path defining method, comprising:
The first area border router in the region managed from controller by pre-set business of the equipment transmission of each controller of receiving management transfers to the path requirement indication information of the second area border router in the region that this controller manages;
According to the link information between router in the region that described path requirement indication information, controller manage, and the bandwidth occupancy information in the region that manages of described controller between router, determine Equations of The Second Kind service path information;
Wherein, the router in the region that manages of described controller comprises Area Border Router and non-area border router; Described Equations of The Second Kind service path information comprises the information business datum of described pre-set business being transferred to each non-area border router the path of described second area border router from described first area border router.
In conjunction with second aspect, in the implementation that the first is possible, according to the link information between router in the region that described path requirement indication information, controller manage, and the bandwidth occupancy information in the region that manages of described controller between router, determine Equations of The Second Kind service path information, comprising:
Bandwidth occupancy information in the region that link information in the region that the bandwidth requirement information of the pre-set business comprised according to described path requirement indication information, described controller manage between router and described controller manage between router, determine to connect in the service path of described first area border router and second area border router, meet the Equations of The Second Kind service path information of at least two service paths of the bandwidth demand of described pre-set business;
Determine in described at least two service paths, the Equations of The Second Kind service path information of the service path that remaining bandwidth resource is maximum.
The third aspect, provides a kind of service path determining device, comprising:
Determination module, for according to the link information between Area Border Router and the bandwidth occupancy information between described Area Border Router, determine the first kind service path information of the bandwidth demand meeting pre-set business, described first kind service path information comprise transmit described pre-set business business datum needed for process service path on the information of each Area Border Router;
Sending module, the first area border router of the same area and the information of second area border router is belonged to, to the controller transmit path demand indication information of this same area of management in the described first kind service path information determined according to determination module;
Wherein, described path requirement indication information is used to indicate the controller determination Equations of The Second Kind service path information managing described the same area; Described Equations of The Second Kind service path information comprises the information business datum of described pre-set business being transferred to each non-area border router the path of described second area border router from described first area border router.
In conjunction with the third aspect, in the implementation that the first is possible, described Area Border Router comprises: Autonomous System Boundary Router, AS Boundary Router ASBR and Interior Gateway Protocol Area Border Router ABR.
In conjunction with the third aspect, or the first possible implementation of the third aspect, in the implementation that the second is possible, described determination module specifically for: according to the bandwidth occupancy information between the link information between Area Border Router and Area Border Router, determine, in the service path of the Area Border Router connecting two ends, to meet the first kind service path information of at least two service paths of the bandwidth demand of described pre-set business; Wherein, the Area Border Router that the service providing end that the Area Border Router at described two ends is described pre-set business is connected respectively with service receiving terminal; Determine in described at least two service paths, the first kind service path information of the service path that remaining bandwidth resource is maximum.
Fourth aspect, provides a kind of service path determining device, comprising:
Receiver module, the first area border router in the region managed from controller by pre-set business that the equipment for each controller of receiving management sends transfers to the path requirement indication information of the second area border router in the region that this controller manages;
Determination module, for the link information between router in the region that manages according to described path requirement indication information, controller, and the bandwidth occupancy information in the region that manages of described controller between router, determine Equations of The Second Kind service path information;
Wherein, the router in the region that manages of described controller comprises Area Border Router and non-area border router; Described Equations of The Second Kind service path information comprises the information business datum of described pre-set business being transferred to each non-area border router the path of described second area border router from described first area border router.
In conjunction with fourth aspect, in the implementation that the first is possible, described determination module is specifically for bandwidth occupancy information in the region that the link information in the region that the bandwidth requirement information of the pre-set business comprised according to described path requirement indication information, described controller manage between router and described controller manage between router, determine to connect in the service path of described first area border router and second area border router, meet the Equations of The Second Kind service path information of at least two service paths of the bandwidth demand of described pre-set business; Determine in described at least two service paths, the Equations of The Second Kind service path information of the service path that remaining bandwidth resource is maximum.
5th aspect, provides a kind of service path determining device, comprising:
Processor, for according to the link information between Area Border Router and the bandwidth occupancy information between described Area Border Router, determine the first kind service path information of the bandwidth demand meeting pre-set business, described first kind service path information comprise transmit described pre-set business business datum needed for process service path on the information of each Area Border Router;
Reflector, belongs to the first area border router of the same area and the information of second area border router in the described first kind service path information determined according to processor, to the controller transmit path demand indication information of this same area of management;
Wherein, described path requirement indication information is used to indicate the controller determination Equations of The Second Kind service path information managing described the same area; Described Equations of The Second Kind service path information comprises the information business datum of described pre-set business being transferred to each non-area border router the path of described second area border router from described first area border router.
In conjunction with the 5th aspect, in the implementation that the first is possible, described Area Border Router comprises: Autonomous System Boundary Router, AS Boundary Router ASBR and Interior Gateway Protocol Area Border Router ABR.
In conjunction with the 5th aspect, or the 5th the first possible implementation of aspect, in the implementation that the second is possible, described processor specifically for: according to the bandwidth occupancy information between the link information between Area Border Router and Area Border Router, determine, in the service path of the Area Border Router connecting two ends, to meet the first kind service path information of at least two service paths of the bandwidth demand of described pre-set business; Wherein, the Area Border Router that the service providing end that the Area Border Router at described two ends is described pre-set business is connected respectively with service receiving terminal; Determine in described at least two service paths, the first kind service path information of the service path that remaining bandwidth resource is maximum.
6th aspect, provides a kind of service path determining device, comprising:
Receiver, the first area border router in the region managed from controller by pre-set business that the equipment for each controller of receiving management sends transfers to the path requirement indication information of the second area border router in the region that this controller manages;
Processor, for the link information between router in the region that manages according to described path requirement indication information, described controller, and the bandwidth occupancy information in the region that manages of described controller between router, determine Equations of The Second Kind service path information; Wherein, the router in the region that manages of described controller comprises Area Border Router and non-area border router; Described Equations of The Second Kind service path information comprises the information business datum of described pre-set business being transferred to each non-area border router the path of described second area border router from described first area border router.
In conjunction with the 6th aspect, in the implementation that the first is possible, described processor is specifically for bandwidth occupancy information in the region that the link information in the region that the bandwidth requirement information of the pre-set business comprised according to described path requirement indication information, described controller manage between router and described controller manage between router, determine to connect in the service path of described first area border router and second area border router, meet the Equations of The Second Kind service path information of at least two service paths of the bandwidth demand of described pre-set business; Determine in described at least two service paths, the Equations of The Second Kind service path information of the service path that remaining bandwidth resource is maximum.
Adopt the technical scheme of above-described embodiment, the Area Border Router connected due to each non-area border router is all disposed according to the bandwidth occupancy information between the link information between each Area Border Router and Area Border Router by master controller, can ensure like this business datum can in the region that each sub-controller manages normal transmission, avoid appearing at transmission in region that some sub-controllers manage very fast, but situation about cannot transmit in the region that other sub-controllers manage occurs, thus service transmission path end to end can be optimized, improve the efficiency of transmission of business datum.
Accompanying drawing explanation
Fig. 1 be MPLS network router between interconnective structural representation;
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;
The service path defining method flow chart that Fig. 4 provides for the embodiment of the present invention one;
The service path defining method flow chart that Fig. 5 provides for the embodiment of the present invention two;
The service path defining method flow chart that Fig. 6 provides for the embodiment of the present invention three;
The service path determining device structural representation that Fig. 7 provides for the embodiment of the present invention four;
The service path determining device structural representation that Fig. 8 provides for the embodiment of the present invention five;
The service path determining device structural representation that Fig. 9 provides for the embodiment of the present invention six;
The service path determining device structural representation that Figure 10 provides for the embodiment of the present invention seven.
Embodiment
As shown in Figure 2, be the network system architecture schematic diagram of the embodiment of the present invention.This network system comprises master controller and multiple sub-controller.This master controller is used for for pre-set business determination first kind service path information, the information of each Area Border Router on the path of process needed for the business datum that this first kind service path information comprises this pre-set business of transmission.On the basis of the first kind service path information that this sub-controller is determined in master control, determine Equations of The Second Kind service path information according to the instruction of this master controller.The first area border router that this Equations of The Second Kind service path information comprises the region business datum of pre-set business managed from this sub-controller transfers to the information of each non-area border router the path of the second area border router in the region that this sub-controller manages.Here first area border router and second area border router are the Area Border Router in described first kind service path information.Described master controller can be one or more.This master controller can be the equipment that routing device, switching equipment or server etc. have webmaster or controlling functions.
As shown in Figure 3, in the embodiment of the present invention, the equipment managing other controllers is called master controller, and each controller be managed is called sub-controller.Also namely, master controller manages each sub-controller, and different sub-controllers manages different regions, and region here can be specifically Interior Gateway Protocol (InteriorGatewayProtocol, IGP) region.When needs are for an a certain service deployment service path, master controller is first according to the link information between Area Border Router and bandwidth occupancy information, dispose meet the service path of the bandwidth demand of pre-set business the regional border router of process, the service path indicating sub-controller to dispose according to this master controller again the Area Border Router of process, dispose the non-area border router of this pre-set business of transmission in respective managed region.Here, the neighboring router that the non-area border router in the region that manages of sub-controller connects is all the router (comprising the non-area border router in one's respective area and Area Border Router) in one's respective area.In the embodiment of the present invention due to master controller can first to dispose in the service path of the bandwidth demand meeting pre-set business the regional border router of process, thus can ensure business datum can in the region that each sub-controller manages normal transmission, avoid appearing at transmission in region that some sub-controllers manage very fast, but situation about cannot transmit in the region that other sub-controllers manage occurs, thus service transmission path end to end can be optimized, 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.Pre-set business in the embodiment of the present invention can be specifically VPN traffic, and the service path of deployment can be called label switched path (LabelSwitchPath, LSP).Particularly, the path identified by each Area Border Router is called BGPLSP, and also namely the information of this BGPLSP comprises the information of regional border router.Path between any two Area Border Routers connected by each non-area border router is called traffic engineering (TrafficEngineer, TE) LSP.In an mpls network, Access Layer, convergence-level and core layer are separately as an IGP region.Connected by Router Reflector (RouteReflector, RR) between convergence-level and each Area Border Router of core layer.Access Layer and convergence-level composition autonomous system 1, core layer is separately an autonomous system 2.Access Layer, convergence-level and core layer are separately as an IGP region.
For MPLS network, Area Border Router in the embodiment of the present invention can comprise: the Autonomous System Boundary Router, AS Boundary Router (AutonomousSystemBorderRouter between different autonomous system, ASBR) the IGP Area Border Router (AreaBorderRouter, ABR) and between different I GP region.Such as, in Fig. 3, Area Border Router 1, Area Border Router 2, Area Border Router 3, Area Border Router 4, Area Border Router 9 and Area Border Router 10 is ABR, and Area Border Router 5, Area Border Router 6, Area Border Router 7 and Area Border Router 8 is ASBR.The Routing Protocol adopted when exchanging routing iinformation between the ASBR in different AS is External BGP (ExteriorBorderGatewayProtocol, EBGP); The Routing Protocol adopted when exchanging routing iinformation between the ASBR between the ABR in same AS, between ABR and ASBR and in same AS is Internal BGP (InteriorBorderGatewayProtocol, IBGP); In same IGP region, the Routing Protocol adopted when exchanging routing iinformation between each router is IGP.
Below in conjunction with Figure of description, the embodiment of the present invention is described in further detail;
As shown in Figure 4, the service path defining method that the embodiment of the present invention one provides, comprising:
S401: master controller is according to the bandwidth occupancy information between the link information between Area Border Router and Area Border Router, determine the first kind service path information of the bandwidth demand meeting pre-set business, described first kind service path information comprises the information of each Area Border Router on the service path of the required process of the business datum transmitting described pre-set business.
In S401, service providing end is when providing business service for described pre-set business, the inputting interface that can be provided by master controller inputs every service parameter, this service parameter can comprise the bandwidth demand of described pre-set business, and the information of Area Border Router (Area Border Routers hereinafter referred to as two ends) that the service providing end of described pre-set business and service receiving terminal are connected separately.Here, what the information of the Area Border Router at two ends specifically can comprise in the mark, Internet protocol (InternetProtocol, IP) address etc. of the Area Border Router at two ends is one or more.
Master controller is when determining described first kind service path information, and needs consideration meets the link information (topology information of each border router also namely disposed) between the zones of different border router on the service path of pre-set business demand and meets the bandwidth occupancy information (such as remaining bandwidth resources) between the Area Border Router on the service path of pre-set business demand.Such as, for a certain VPN traffic, first master controller can determine many BGPLSP that the Area Border Router at the two ends of this VPN traffic of transmission can be coupled together; Again in these many BGPLSP, select current residual transmission bandwidth resource can meet the BGPLSP of the bandwidth demand of this VPN traffic.Here, the information that the current residual transmission bandwidth resource of selection can meet the BGPLSP of the bandwidth demand of this VPN traffic comprises the information of the regional border router through this BGPLSP selected; The information of Area Border Router here can comprise the mark of Area Border Router, IP address, this Area Border Router serial number (such as, by each Area Border Router in the service path of a certain business of transmission, sort successively from the Area Border Router that service providing end connects, obtain the serial number of each Area Border Router) etc. in one or more.
S402: described master controller belongs to the first area border router of the same area and the information of second area border router according in the described first kind service path information determined, to the sub-controller transmit path demand indication information of this same area of management; Wherein, described path requirement indication information is used to indicate the sub-controller determination Equations of The Second Kind service path information managing described the same area; Described Equations of The Second Kind service path information comprises the information business datum of described pre-set business being transferred to each non-area border router the path of described second area border router from described first area border router.Described " the same area " can be same IGP region.
In S402, master controller is according to the first kind service path information determined in S401, also the information of each Area Border Router of described pre-set business is namely transmitted, to the sub-controller transmit path demand indication information of the regional (as IGP region) corresponding to each Area Border Router, each sub-controller is indicated to determine the information of each non-area border router transmitted on the path of described pre-set business.The information of non-area border router here can comprise the mark of non-area border router, IP address, this non-area border router serial number (such as, the business datum of a certain business is transferred to each non-area border router the path of second area border router from first area border router, sort successively from the non-area border router that first area border router connects, obtain the serial number of each non-area border router) etc. in one or more.
Sub-controller, when determining described Equations of The Second Kind service path information, needs to consider the bandwidth occupancy information (such as remaining bandwidth resources) between link information (topology information of each Area Border Router also namely disposed, each non-area border router) in the region that manages between each router and each router.Such as, for a certain VPN traffic, the TELSP between specify two Area Border Routers that master controller indicates certain sub-controller to determine in a BGPLSP.First sub-controller can determine many TELSP that two Area Border Routers this can specified couple together, then selects current residual transmission bandwidth resource can meet the TELSP of the bandwidth demand of this VPN traffic in these many TELSP connecting two Area Border Routers of specifying.
For the framework of Fig. 3, suppose that the Area Border Router that the service providing end of described pre-set business connects is Area Border Router 9, the Area Border Router that service reception end connects is Area Border Router 1.Minimum transfer bandwidth required by this pre-set business is 100M.Master controller, according to the link information between each Area Border Router and the bandwidth occupancy information between each Area Border Router, determines the first kind service path information of the bandwidth demand meeting described pre-set business.Such as, the minimum transfer bandwidth required by pre-set business is 100M.The remaining bandwidth in path from Area Border Router 8 to Area Border Router 6 is 80M, the remaining bandwidth in path from Area Border Router 7 to Area Border Router 5 is 120M, therefore, this paths of Area Border Router 8 → Area Border Router 6 does not meet the bandwidth demand of pre-set business, and this paths of Area Border Router 7 → Area Border Router 5 meets the bandwidth demand of pre-set business.In addition, the remaining bandwidth in path from Area Border Router 5 to Area Border Router 4 is 130M, the remaining bandwidth in path from Area Border Router 4 to Area Border Router 1 is 80M, therefore, this paths of Area Border Router 5 → Area Border Router 4 → Area Border Router 1 does not meet the bandwidth demand of pre-set business; The remaining bandwidth in path from Area Border Router 5 to Area Border Router 3 is 120M, the remaining bandwidth in path from Area Border Router 3 to Area Border Router 1 is 140M, therefore, this paths of Area Border Router 5 → Area Border Router 3 → Area Border Router 1 meets the bandwidth demand of pre-set business.Finally, when described pre-set business is transmitted to business receiving terminal in master controller determination business providing end each Area Border Router of process be Area Border Router 9 → Area Border Router 7 → Area Border Router 5 → Area Border Router 3 → Area Border Router 1 successively.
Master controller is to each sub-controller transmit path demand indication information belonging to each Area Border Router on the path of this pre-set business of transmission, the sub-controller 3 in the region successively between instruction management Area Border Router 9 and Area Border Router 7 determines the Equations of The Second Kind service path information business datum of this pre-set business being transferred to Area Border Router 7 from Area Border Router 9, the sub-controller 2 in the region between instruction management Area Border Router 5 and Area Border Router 3 determines the Equations of The Second Kind service path information business datum of this pre-set business being transferred to Area Border Router 3 from Area Border Router 5, the sub-controller 1 in the region between instruction management Area Border Router 3 and Area Border Router 1 determines the Equations of The Second Kind service path information business datum of this pre-set business being transferred to Area Border Router 1 from Area Border Router 3.Here Equations of The Second Kind service path information comprises the information transmitting each non-area border router on the path of this pre-set business in the region of certain sub-controller management.
Adopt the technical scheme of above-described embodiment, the Area Border Router connected due to each non-area border router is all disposed according to the bandwidth occupancy information between the link information between each Area Border Router and Area Border Router by master controller, can ensure like this business datum can in the region that each sub-controller manages normal transmission, avoid appearing at transmission in region that some sub-controllers manage very fast, but situation about cannot transmit in the region that other sub-controllers manage occurs, thus service transmission path end to end can be optimized, improve the efficiency of transmission of business datum.
In specific implementation process, in order to improve business efficiency of transmission, load balancing can also be carried out to each service path.Current exist many meet the service path of the bandwidth demand of described pre-set business time, the service path that current residual bandwidth resources are maximum can be selected.To be described in detail in following examples two.
As shown in Figure 5, the service path defining method that the embodiment of the present invention two provides, comprising:
S501: master controller is according to the bandwidth requirement information of the bandwidth occupancy information between the link information between Area Border Router, Area Border Router and pre-set business, determine in the service path of the Area Border Router connecting two ends, meet the first kind service path information of at least two service paths of the bandwidth demand of described pre-set business, described first kind service path information comprises the information of each Area Border Router on the service path transmitting described pre-set business; Wherein, the Area Border Router that the service providing end that the Area Border Router at described two ends is described pre-set business is connected respectively with service receiving terminal;
S502: master controller, in described at least two service paths, selects the service path that remaining bandwidth resource is maximum.
In S501 and S502, master controller can first according to the service providing end of pre-set business described in the service parameter of the pre-set business of user's input with serve the IP address of Area Border Router that is connected separately of receiving terminal and the bandwidth requirement information of pre-set business, and link information between each Area Border Router and the bandwidth occupancy information between Area Border Router, determine many service paths of bandwidth demand that the Area Border Router at two ends can be coupled together, that meet described pre-set business.Again in many service paths connecting two ends, select to meet the bandwidth demand of described setting business and the maximum service path of current residual bandwidth resources.
Here, the service path that can meet the bandwidth demand of described pre-set business not only can comprise the service path that current residual bandwidth resources can meet the bandwidth demand of described pre-set business, can also comprise current residual bandwidth resources be not enough to meet described pre-set business bandwidth demand but can by meeting the service path of the bandwidth demand of described pre-set business to the bandwidth adjustment of the current use of other business.Such as, the required minimum bandwidth of described pre-set business A is 100M, certain service path remaining bandwidth is 80M, the bandwidth that a certain business B that this service path carries is using is 200M, but the required minimum bandwidth of this business B is 150M, then can be 180M by the Bandwidth adjustment of current for this business B use, like this, this service path remaining bandwidth is 80M+200M-180M=100M, can meet the bandwidth demand of this pre-set business A.
S503: described master controller according to the first kind service path information determined, to the relevant each sub-controller transmit path demand indication information of Area Border Router on the service path selected.
S504: transfer to the path requirement indication information of the second area border router in the IGP region that this sub-controller manages to the first area border router that the relevant sub-controller of Area Border Router on the service path selected receives IGP region that master controller sends, that managed from this sub-controller by pre-set business; Here first area border router and second area border router are the Area Border Router on the described service path of described master controller selection.
S505: the bandwidth occupancy information in the IGP region that the link information in the region that the bandwidth requirement information of the pre-set business that the sub-controller that the Area Border Router on the described service path to selecting is relevant comprises according to described path requirement indication information, described controller manage between router and described controller manage between router, determine to connect in the service path of described first area border router and second area border router, meet the Equations of The Second Kind service path information of at least two service paths of the bandwidth demand of described pre-set business; Described Equations of The Second Kind service path information comprises the information of each non-area border router business datum of described pre-set business being transferred to described second area border router from described first area border router.
S506: the sub-controller that the Area Border Router on the described service path to selecting is relevant is determined at least two service paths in S505, the Equations of The Second Kind service path information of the service path that remaining bandwidth resource is maximum.
The implementing though of S505 ~ S506 is similar to S501 ~ S502, in specific implementation process, utilize to the bandwidth resources of many service paths be carried out equilibrium as far as possible, sub-controller is when determining described Equations of The Second Kind service path information, in many service paths of bandwidth demand meeting pre-set business, the service path that current residual bandwidth resources are maximum can be selected.
Based on same inventive concept, following examples of the present invention provide the service path defining method based on sub-controller side, and concrete enforcement is similar to the aforementioned embodiment, repeats part, repeats no more.
As shown in Figure 6, be the service path defining method flow chart that the embodiment of the present invention three provides, comprise:
S601: the first area border router in the region managed from this sub-controller by pre-set business that sub-controller reception master controller sends transfers to the path requirement indication information of the second area border router in the region that this sub-controller manages.Here, the region that sub-controller manages can be specifically IGP region.
S602: the link information in the region that sub-controller manages according to described path requirement indication information, described sub-controller between router, and the bandwidth occupancy information in the region that manages of described sub-controller between router, determine Equations of The Second Kind service path information; Wherein, the router in the region that manages of described sub-controller comprises Area Border Router and non-area border router; Described Equations of The Second Kind service path information comprises the information business datum of described pre-set business being transferred to each non-area border router the path of described second area border router from described first area border router.
Alternatively, in S602, link information in the region that described sub-controller manages according to described path requirement indication information, described sub-controller between router, and the bandwidth occupancy information in the region that manages of described sub-controller between router, determine Equations of The Second Kind service path information, comprising:
Bandwidth occupancy information in the region that link information in the region that the bandwidth requirement information of the pre-set business that described sub-controller comprises according to described path requirement indication information, described controller manage between router and described controller manage between router, determine to connect in the service path of described first area border router and second area border router, meet the Equations of The Second Kind service path information of at least two service paths of the bandwidth demand of described pre-set business;
Described sub-controller is determined in described at least two service paths, the Equations of The Second Kind service path information of the service path that remaining bandwidth resource is maximum.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of service path determining device corresponding with service path defining method, the principle of dealing with problems due to this device is similar to embodiment of the present invention service path defining method, therefore the enforcement of this device see the enforcement of method, can repeat part and repeats no more.
As shown in Figure 7, be the service path determining device structural representation that the embodiment of the present invention four provides, comprise determination module 71 and sending module 72.
This determination module 71, for according to the link information between Area Border Router and the bandwidth occupancy information between described Area Border Router, determine the first kind service path information of the bandwidth demand meeting pre-set business, described first kind service path information comprise transmit described pre-set business business datum needed for process service path on the information of each Area Border Router.
This sending module 72, the first area border router of the same area and the information of second area border router is belonged to, to the controller transmit path demand indication information of this same area of management in the described first kind service path information determined according to determination module 71.This same area can be same Interior Gateway Protocol IGP region.
Wherein, described path requirement indication information is used to indicate the controller determination Equations of The Second Kind service path information managing described the same area; Described Equations of The Second Kind service path information comprises the information business datum of described pre-set business being transferred to each non-area border router the path of described second area border router from described first area border router.
Alternatively, described Area Border Router comprises: Autonomous System Boundary Router, AS Boundary Router ASBR and Interior Gateway Protocol Area Border Router ABR.
Alternatively, described determination module 71 specifically for:
According to the bandwidth occupancy information between the link information between Area Border Router and Area Border Router, determine, in the service path of the Area Border Router connecting two ends, to meet the first kind service path information of at least two service paths of the bandwidth demand of described pre-set business; Wherein, the Area Border Router that the service providing end that the Area Border Router at described two ends is described pre-set business is connected respectively with service receiving terminal;
Determine in described at least two service paths, the first kind service path information of the service path that remaining bandwidth resource is maximum.
As shown in Figure 8, be the service path determining device structural representation that the embodiment of the present invention five provides, comprise receiver module 81 and determination module 82.
Receiver module 81, the first area border router in the region managed from controller by pre-set business that the equipment for each controller of receiving management sends transfers to the path requirement indication information of the second area border router in the region that this controller manages.The region that this controller manages can be Interior Gateway Protocol IGP region.
Determination module 82, for the link information between router in the region that manages according to described path requirement indication information, this controller, and the bandwidth occupancy information in the region that manages of described controller between router, determine Equations of The Second Kind service path information.
Wherein, the router in the region that manages of described controller comprises Area Border Router and non-area border router; Described Equations of The Second Kind service path information comprises the information business datum of described pre-set business being transferred to each non-area border router the path of described second area border router from described first area border router.
Alternatively, described determination module 82 is specifically for bandwidth occupancy information in the region that the link information in the region that the bandwidth requirement information of the pre-set business comprised according to described path requirement indication information, described controller manage between router and described controller manage between router, determine to connect in the service path of described first area border router and second area border router, meet the Equations of The Second Kind service path information of at least two service paths of the bandwidth demand of described pre-set business; Determine in described at least two service paths, the Equations of The Second Kind service path information of the service path that remaining bandwidth resource is maximum.
As shown in Figure 9, be the service path determining device structural representation that the embodiment of the present invention six provides, comprise processor 91 and reflector 92.
Processor 91, for according to the link information between Area Border Router and the bandwidth occupancy information between described Area Border Router, determine the first kind service path information of the bandwidth demand meeting pre-set business, described first kind service path information comprise transmit described pre-set business business datum needed for process service path on the information of each Area Border Router.Described the same area can be same Interior Gateway Protocol IGP region.
Reflector 92, the first area border router of the same area and the information of second area border router is belonged to, to the controller transmit path demand indication information of this same area of management in the described first kind service path information determined according to processor 91.
Wherein, described path requirement indication information is used to indicate the controller determination Equations of The Second Kind service path information managing described the same area; Described Equations of The Second Kind service path information comprises the information business datum of described pre-set business being transferred to each non-area border router the path of described second area border router from described first area border router.
Alternatively, described Area Border Router comprises: Autonomous System Boundary Router, AS Boundary Router ASBR and Interior Gateway Protocol Area Border Router ABR.
Alternatively, described processor 91 specifically for: according to the bandwidth occupancy information between the link information between Area Border Router and Area Border Router, determine, in the service path of the Area Border Router connecting two ends, to meet the first kind service path information of at least two service paths of the bandwidth demand of described pre-set business; Wherein, the Area Border Router that the service providing end that the Area Border Router at described two ends is described pre-set business is connected respectively with service receiving terminal; Determine in described at least two service paths, the first kind service path information of the service path that remaining bandwidth resource is maximum.
As shown in Figure 10, be the service path determining device structural representation that the embodiment of the present invention seven provides, comprise receiver 101 and processor 102.
Receiver 101, the first area border router in the region managed from controller by pre-set business that the equipment for each controller of receiving management sends transfers to the path requirement indication information of the second area border router in the region that this controller manages.The region of this controller management can be Interior Gateway Protocol IGP region.
Processor 102, for the link information between router in the region that manages according to described path requirement indication information, described controller, and the bandwidth occupancy information in the region that manages of described controller between router, determine Equations of The Second Kind service path information; Wherein, the router in the region that manages of described controller comprises Area Border Router and non-area border router; Described Equations of The Second Kind service path information comprises the information business datum of described pre-set business being transferred to each non-area border router the path of described second area border router from described first area border router.
Alternatively, described processor 102 is specifically for bandwidth occupancy information in the region that the link information in the region that the bandwidth requirement information of the pre-set business comprised according to described path requirement indication information, described controller manage between router and described controller manage between router, determine to connect in the service path of described first area border router and second area border router, meet the Equations of The Second Kind service path information of at least two service paths of the bandwidth demand of described pre-set business; Determine in described at least two service paths, the Equations of The Second Kind service path information of the service path that remaining bandwidth resource is maximum.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, device (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (15)
1. a service path defining method, is characterized in that, the method comprises:
According to the link information between Area Border Router and the bandwidth occupancy information between described Area Border Router, determine the first kind service path information of the bandwidth demand meeting pre-set business, described first kind service path information comprise transmit described pre-set business business datum needed for process service path on the information of each Area Border Router;
The first area border router of the same area and the information of second area border router is belonged to, to the controller transmit path demand indication information of this same area of management according in the described first kind service path information determined;
Wherein, described path requirement indication information is used to indicate the controller determination Equations of The Second Kind service path information managing described the same area; Described Equations of The Second Kind service path information comprises the information business datum of described pre-set business being transferred to each non-area border router the path of described second area border router from described first area border router.
2. the method for claim 1, is characterized in that, described Area Border Router comprises: Autonomous System Boundary Router, AS Boundary Router ASBR and Interior Gateway Protocol Area Border Router ABR.
3. method as claimed in claim 1 or 2, it is characterized in that, described according to the link information between Area Border Router and the bandwidth occupancy information between described Area Border Router, determine the first kind service path information of the bandwidth demand meeting pre-set business, comprising:
According to the link information between described Area Border Router and the bandwidth occupancy information between described Area Border Router, determine, in the service path of the Area Border Router connecting two ends, to meet the first kind service path information of at least two service paths of the bandwidth demand of described pre-set business; Wherein, the Area Border Router that the service providing end that the Area Border Router at described two ends is described pre-set business is connected respectively with service receiving terminal;
Determine in described at least two service paths, the first kind service path information of the service path that remaining bandwidth resource is maximum.
4. a service path defining method, is characterized in that, comprising:
The first area border router in the region managed from controller by pre-set business of the equipment transmission of each controller of receiving management transfers to the path requirement indication information of the second area border router in the region that this controller manages;
According to the link information between router in the region that described path requirement indication information, controller manage, and the bandwidth occupancy information in the region that manages of described controller between router, determine Equations of The Second Kind service path information;
Wherein, the router in the region that manages of described controller comprises Area Border Router and non-area border router; Described Equations of The Second Kind service path information comprises the information business datum of described pre-set business being transferred to each non-area border router the path of described second area border router from described first area border router.
5. method as claimed in claim 4, it is characterized in that, according to the link information between router in the region that described path requirement indication information, controller manage, and the bandwidth occupancy information in the region that manages of described controller between router, determine Equations of The Second Kind service path information, comprising:
Bandwidth occupancy information in the region that link information in the region that the bandwidth requirement information of the pre-set business comprised according to described path requirement indication information, described controller manage between router and described controller manage between router, determine to connect in the service path of described first area border router and second area border router, meet the Equations of The Second Kind service path information of at least two service paths of the bandwidth demand of described pre-set business;
Determine in described at least two service paths, the Equations of The Second Kind service path information of the service path that remaining bandwidth resource is maximum.
6. a service path determining device, is characterized in that, this device comprises:
Determination module, for according to the link information between Area Border Router and the bandwidth occupancy information between described Area Border Router, determine the first kind service path information of the bandwidth demand meeting pre-set business, described first kind service path information comprise transmit described pre-set business business datum needed for process service path on the information of each Area Border Router;
Sending module, the first area border router of the same area and the information of second area border router is belonged to, to the controller transmit path demand indication information of this same area of management in the described first kind service path information determined according to determination module;
Wherein, described path requirement indication information is used to indicate the controller determination Equations of The Second Kind service path information managing described the same area; Described Equations of The Second Kind service path information comprises the information business datum of described pre-set business being transferred to each non-area border router the path of described second area border router from described first area border router.
7. device as claimed in claim 6, it is characterized in that, described Area Border Router comprises: Autonomous System Boundary Router, AS Boundary Router ASBR and Interior Gateway Protocol Area Border Router ABR.
8. device as claimed in claims 6 or 7, it is characterized in that, described determination module specifically for: according to the link information between described Area Border Router and the bandwidth occupancy information between described Area Border Router, determine, in the service path of the Area Border Router connecting two ends, to meet the first kind service path information of at least two service paths of the bandwidth demand of described pre-set business; Wherein, the Area Border Router that the service providing end that the Area Border Router at described two ends is described pre-set business is connected respectively with service receiving terminal; Determine in described at least two service paths, the first kind service path information of the service path that remaining bandwidth resource is maximum.
9. a service path determining device, is characterized in that, this device comprises:
Receiver module, the first area border router in the region managed from controller by pre-set business that the equipment for each controller of receiving management sends transfers to the path requirement indication information of the second area border router in the region that this controller manages;
Determination module, for the link information between router in the region that manages according to described path requirement indication information, described controller, and the bandwidth occupancy information in the region that manages of described controller between router, determine Equations of The Second Kind service path information;
Wherein, the router in the region that manages of described controller comprises Area Border Router and non-area border router; Described Equations of The Second Kind service path information comprises the information business datum of described pre-set business being transferred to each non-area border router the path of described second area border router from described first area border router.
10. device as claimed in claim 9, it is characterized in that, described determination module is specifically for bandwidth occupancy information in the region that the link information in the region that the bandwidth requirement information of the pre-set business comprised according to described path requirement indication information, described controller manage between router and described controller manage between router, determine to connect in the service path of described first area border router and second area border router, meet the Equations of The Second Kind service path information of at least two service paths of the bandwidth demand of described pre-set business; Determine in described at least two service paths, the Equations of The Second Kind service path information of the service path that remaining bandwidth resource is maximum.
11. 1 kinds of service path determining devices, is characterized in that, this device comprises:
Processor, for according to the link information between Area Border Router and the bandwidth occupancy information between described Area Border Router, determine the first kind service path information of the bandwidth demand meeting pre-set business, described first kind service path information comprise transmit described pre-set business business datum needed for process service path on the information of each Area Border Router;
Reflector, belongs to the first area border router of the same area and the information of second area border router in the described first kind service path information determined according to processor, to the controller transmit path demand indication information of this same area of management;
Wherein, described path requirement indication information is used to indicate the controller determination Equations of The Second Kind service path information managing described the same area; Described Equations of The Second Kind service path information comprises the information business datum of described pre-set business being transferred to each non-area border router the path of described second area border router from described first area border router.
12. devices as claimed in claim 11, it is characterized in that, described Area Border Router comprises: Autonomous System Boundary Router, AS Boundary Router ASBR and Interior Gateway Protocol Area Border Router ABR.
13. devices as described in claim 11 or 12, it is characterized in that, described processor specifically for: according to the link information between Area Border Router and the bandwidth occupancy information between described Area Border Router, determine, in the service path of the Area Border Router connecting two ends, to meet the first kind service path information of at least two service paths of the bandwidth demand of described pre-set business; Wherein, the Area Border Router that the service providing end that the Area Border Router at described two ends is described pre-set business is connected respectively with service receiving terminal; Determine in described at least two service paths, the first kind service path information of the service path that remaining bandwidth resource is maximum.
14. 1 kinds of service path determining devices, is characterized in that, this device comprises:
Receiver, the first area border router in the region managed from controller by pre-set business that the equipment for each controller of receiving management sends transfers to the path requirement indication information of the second area border router in the region that this controller manages;
Processor, for the link information between router in the region that manages according to described path requirement indication information, controller, and the bandwidth occupancy information in the region that manages of described controller between router, determine Equations of The Second Kind service path information; Wherein, the router in the region that manages of described controller comprises Area Border Router and non-area border router; Described Equations of The Second Kind service path information comprises the information business datum of described pre-set business being transferred to each non-area border router the path of described second area border router from described first area border router.
15. devices as claimed in claim 14, it is characterized in that, described processor is specifically for bandwidth occupancy information in the region that the link information in the region that the bandwidth requirement information of the pre-set business comprised according to described path requirement indication information, described controller manage between router and described controller manage between router, determine to connect in the service path of described first area border router and second area border router, meet the Equations of The Second Kind service path information of at least two service paths of the bandwidth demand of described pre-set business; Determine in described at least two service paths, the Equations of The Second Kind service path information of the service path that remaining bandwidth resource is maximum.
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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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| 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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| WO2015196898A1 (en) | 2015-12-30 |
| CN105207906B (en) | 2019-02-19 |
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