CN102355399B - Method and system for resource synergy between Internet protocol (IP) bearing layer and optical transport layer - Google Patents
Method and system for resource synergy between Internet protocol (IP) bearing layer and optical transport layer Download PDFInfo
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Abstract
The invention provides a method and a system for resource synergy between an Internet protocol (IP) bearing layer and an optical transport layer. The method comprises that: a monitoring module monitors a current service index of the IP bearing layer; a synergic module judges whether the current service index exceeds a preset service index threshold value or not, and queries a service requirement index from a service module if the current service index exceeds the preset service index threshold value; the synergic module judges whether current optical transport layer resources can meet the service requirement index or not according to the service requirement index and the optical transport layer resource information of the optical transport layer, and queries a resource allocation strategy from a resource module if the current optical transport layer resources can meet the service requirement index; and the synergic module performs routing configuration on the optical transport layer according to the resource allocation strategy. By the method and the system, the routing configuration of the optical transport layer is optimized in real time to realize the resource synergy between the IP bearing layer and the optical transport layer, thereby effectively configuring network resources, improving network capacity, relieving the pressure of bandwidth expansion and improving service experiences.
Description
Technical field
The present invention relates to resource coordinating method and system between a kind of IP bearing bed and optical transport layer, belong to optical communication technique field.
Background technology
At present, the Overlapping network that basis bearer network consists of jointly IP bearing bed and optical transport layer, IP node and optical network node coincide, but IP bearing bed and optical transport layer not perception mutually, the control information that is IP bearing bed does not flow into optical transport layer, optical transport layer be take static configuration mode and is set up " pipeline " as IP bearing bed, and to realize in IP bearing bed interconnected between each router, the exchange of all groupings all completes in router.Wherein, this static configuration mode is to realize by the artificial network planning and human configuration.
Because existing IP bearing bed and optical transport layer lack synergistic mechanism, be therefore difficult to configuration network resource effectively, thereby the waste that easily causes network to transmit resource, and traffic forwarding number of times increase the burden that has also increased equipment, affected service experience.
In order to solve this present situation, multiple technologies have been expedited the emergence of at present, for example: the optical transfer network of channelizing (Channelized 0ptical Transport Network, be called for short: COTN), (Multi-channel Load Balance is called for short: MC-LB), the technology such as path centralized calculation multichannel load balancing.The feature of these technology is based on making IP bearing bed and optical transport layer mutually to merge, and the main route of these technology comprises: (1) adds the mechanism of packet switching in optical-fiber network OTN layer, and shunting some originally will be by three layers of flow forwarding; (2) in the routing device of IP bearing bed, carry out the virtual of port, make flow pass through different ports, different path, realize the load balancing of flow, thus the passive object that reaches optical transport layer Internet resources statistic multiplexing, the passive effective utilization that realizes optical transport layer resource.
Visible, existing these resource coordinating mechanism are all that the ability of the optical transport layer of I P bearing bed based on strengthening or enhancing realizes, and basic ideas are to make this level have the characteristic of another level.Due to for a long time, this is two-layer belongs to respectively no specialty, have sizable difference, so these schemes implements in equipment form very difficult.
Summary of the invention
The invention provides resource coordinating method and system between a kind of IP bearing bed and optical transport layer, in order to realize more easily the resource coordinating between two-layer.
One aspect of the present invention provides the resource coordinating method between a kind of IP bearing bed and optical transport layer, comprising:
The current business index of monitoring module monitors IP bearing bed;
Cooperative module judges that whether described current business index surpasses default operational indicator threshold value, if so, obtains business demand index from business module inquiry;
Described cooperative module judges according to the optical transport layer resource information of described business demand index and optical transport layer whether current optical transport layer resource can meet described business demand index, if so, from resource module inquiry, obtains resource allocation policy;
Described cooperative module carries out routing configuration according to described resource allocation policy to described optical transport layer.
The present invention provides the resource coordinating system between a kind of IP bearing bed and optical transport layer on the other hand, comprising:
Business module, for calculating operational indicator threshold value according to the business attribute information obtaining from business management system;
Resource module, for calculating the available optical transport layer resource information of optical transport layer according to the optical transport layer link circuit resource information of the described optical transport layer obtaining from resource management system and optical transport layer interface resource information;
Monitoring modular, comprises monitoring means, for monitoring the current business index of IP bearing bed;
Cooperative module, comprising:
The first judging unit, for judge monitoring module monitors to described current business index whether surpass the described operational indicator threshold value that business module is sent;
The first query unit, for when judgment result is that of the first judging unit is, obtains business demand index from business module inquiry;
The second judging unit, the described optical transport layer resource information of sending for the described business demand index that inquires according to the first query unit and resource module judges whether current optical transport layer resource can meet described business demand index;
The second query unit, for when judgment result is that of the second judging unit is, obtains resource allocation policy from resource module inquiry;
Command unit, sends routing configuration instruction for the described resource allocation policy inquiring according to the second query unit to configuration module;
Configuration module, for carrying out routing configuration according to the instruction of cooperative module to described optical transport layer.
The present invention, by the routing configuration of optical transport layer is carried out to real-time optimization, has realized the resource coordinating between IP bearing bed and optical transport layer, thereby has effectively configured Internet resources, has expanded network capacity, has alleviated the pressure of bandwidth dilatation, has improved service experience; And this invention by independently functional hierarchy realization, does not need IP bearing bed or optical transport layer self to carry out increased functionality design between IP bearing bed and optical transport layer, therefore more easily realizes and promotes.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the flow chart of the resource coordinating method embodiment mono-between IP bearing bed of the present invention and optical transport layer;
Fig. 2 is the flow chart of the resource coordinating method embodiment bis-between IP bearing bed of the present invention and optical transport layer;
Fig. 3 is the flow chart of the resource coordinating method embodiment tri-between IP bearing bed of the present invention and optical transport layer;
Fig. 4 is the signaling diagram of the resource coordinating method between IP bearing bed of the present invention and optical transport layer;
Fig. 5 is the structural representation of the resource coordinating system embodiment between IP bearing bed of the present invention and optical transport layer;
Fig. 6 is the concrete structure schematic diagram of monitoring modular 30 shown in Fig. 5;
Fig. 7 is the concrete structure schematic diagram of cooperative module 40 shown in Fig. 5.
Embodiment
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 is the flow chart of the resource coordinating method embodiment mono-between IP bearing bed of the present invention and optical transport layer, and as shown in the figure, the method comprises the steps:
Wherein, described current business index comprises the index such as flow, time delay of current business.
Step 120, cooperative module judges whether described current business index surpasses default operational indicator threshold value, if so, continues execution step 130, otherwise finishes this resource coordinating process.
Wherein, described operational indicator threshold value is by business module, according to the business attribute information obtaining from business management system, to be calculated before carrying out this step, and by this business module, the operational indicator threshold value calculating is sent to described cooperative module.
In this step, if the result of judgement is current business index, do not surpass default operational indicator threshold value, do not need optical transport layer to carry out routing configuration, so the collaborative processes described in method ends.Visible, by carrying out this step, can get rid of in advance the situation that some do not need optical transport layer to carry out routing configuration, thereby reduce the operand of subsequent step, alleviated the burden of cooperative module.
Wherein, described operational indicator threshold value is a part for described business demand index, and for example, this operational indicator threshold value can be 70% of business demand index.Query script particularly can be initiated business demand inquiry request to business module by cooperative module, then by business module, to cooperative module, returns to this business demand index.
In addition, described business demand index refers to the desirable index such as the required flow reaching, time delay when realizing current business; And aforementioned current business index refers to the actual indexs such as the flow, time delay of the current business real-time monitoring.Because business is when actual IP bearing bed is carried out, its actual index might not reach its desirable index, for example, the needed optimum wideband index of certain business is 20M bps, and the actual bandwidth index that can reach at I P bearing bed is only 16M bps, therefore, the described current business index real-time monitoring is not identical with described business demand index, and the index that will carry out the basis for estimation of routing configuration to optical transport layer as whether should be described business demand index, therefore need from business module inquiry, to obtain this business demand index in this step.
It should be noted that, described business module, when returning to business demand index to cooperative module, also can send new operational indicator threshold value herein, so that the operational indicator threshold value that cooperative module is being used is upgraded.For example, operational indicator threshold value before renewal is 70% of business demand index, operational indicator threshold value after renewal becomes 80% of business demand index, thereby affect the judged result in step 120, and then affect the trigger condition of optical transport layer being carried out to routing configuration, for intervene the process of resource coordinating by business module, provide a kind of feasible program.
Wherein, described business demand index is inquired about and is obtained in step 130; Described optical transport layer resource information be by resource module according to the optical transport layer link circuit resource information of the described optical transport layer obtaining from resource management system and the available optical transport layer resource information that optical transport layer interface resource information calculates, and send to described cooperative module by this resource module.
In this step, if the result of judgement is that current optical transport layer resource can not meet described business demand index, works in coordination with in any case adjustment and also cannot satisfy the demands, therefore can only finish this resource coordinating process, adopt existing other modes to solve.
Step 150, described cooperative module obtains resource allocation policy from resource module inquiry.
Wherein, described resource allocation policy refers to the strategy how optical transport layer resource being distributed in order to meet business demand index, for example, from start node, how to carry out redirect, and then redirect arrives destination node etc. several times.Concrete query script can first send resource allocation policy inquiry request by cooperative module to resource module; Then by resource module, calculated after resource allocation policy, return to described cooperative module.
Particularly, can first by cooperative module, according to described resource allocation policy, calculate optical transport layer routing configuration demand, and issue this optical transport layer routing configuration demand to configuration module; Then by configuration module, according to described optical transport layer routing configuration demand, optimize optical transport layer routing configuration, and according to the optical transport layer routing configuration after optimizing, optical transport layer is carried out to routing configuration; In addition, after having configured, this configuration module can also, to cooperative module back light transport layer routing configuration result, make cooperative module can learn whether this optical transport layer routing configuration completes.
Described in the present embodiment, method is by carrying out real-time optimization to the routing configuration of optical transport layer, realize the resource coordinating between IP bearing bed and optical transport layer, thereby effectively configured Internet resources, expanded network capacity, the pressure of having alleviated bandwidth dilatation, has improved service experience; And the method by independently functional hierarchy realization, does not need IP bearing bed or optical transport layer self to carry out increased functionality design between IP bearing bed and optical transport layer, therefore more easily realizes and promotes.
Fig. 2 is the flow chart of the resource coordinating method embodiment bis-between IP bearing bed of the present invention and optical transport layer, and as shown in the figure, the method comprises the steps:
Step 210, the current business index of monitoring module monitors IP bearing bed, and according to the following operational indicator of described next time period of current business index prediction.
Wherein, described current business index comprises the index such as flow, time delay of current business; Described following operational indicator is for example the index of business in the next one hour of prediction.
Step 220, cooperative module judges that whether the weighted array value of described current business index and described following operational indicator surpasses described operational indicator threshold value, if so, continues execution step 230, otherwise finishes this resource coordinating process.
Wherein, described weighted array value is to give respectively to current business index and following operational indicator the value that combines after different weights again and obtain, for example:
Following operational indicator * 20% of weighted array value=current business index * 80%+.
Step 230～260 are identical with above-mentioned steps 130～160 respectively, repeat no more herein.
Described in the present embodiment, method, when judging for operational indicator threshold value, has been taken into account the combined influence of current business index and following operational indicator, thereby more contributes to carry out resource coordinating for following burst service.
Fig. 3 is the flow chart of the resource coordinating method embodiment tri-between IP bearing bed of the present invention and optical transport layer, and as shown in the figure, the method comprises the steps:
Step 310～330 are identical with above-mentioned steps 110～130 respectively, repeat no more herein.
Wherein, described alarm module is for being obtained the warning information of relevant optical transport layer resource and report described cooperative module from alarm and control system by alarm and control system interface.
Step 350～360 are identical with above-mentioned steps 150～160 respectively, repeat no more herein.
Described in the present embodiment, method is when judging for business demand index, the optical transport layer resource information being provided in advance by resource module has not only been provided, but also according to warning information, considered the current running status of optical transport layer resource, thereby make judged result more meet the actual conditions of optical transport layer resource, make the effect of resource coordinating more accurate.
Referring to Fig. 4, the signaling process that illustrates the resource coordinating method between IP bearing bed of the present invention and optical transport layer is as follows below:
1. business module calculates operational indicator threshold value according to the business attribute information obtaining from business management system.
Wherein, described business module is the module of being responsible for plan of operation administration configuration and service bandwidth distribution, this business module is connected with business management system by business management system interface, obtains business attribute information, as: the information such as the priority level initializing of business, bandwidth demand.Wherein, described operational indicator refers to the information such as flow, time delay; Described operational indicator threshold value refers to the threshold value of setting for assurance business can meet these operational indicators when moving.
2. resource module calculates available optical transport layer resource information according to the optical transport layer link circuit resource information and the optical transport layer interface resource information that obtain from resource management system.
Wherein, described resource module is connected with resource management system by resource management system interface, obtains described optical transport layer resource information; Described available optical transport layer resource information comprises available optical transport layer link circuit resource information and available optical transport layer interface resource information.
3. alarm module obtains respectively the warning information of optical transport layer link and optical transport layer interface, the availability of monitor optical transport layer by alarm and control system interface.This module is connected with alarm and control system by alarm and control system interface.
4. business module sends to cooperative module by the described metrics-thresholds calculating.
5. resource module sends to cooperative module by the described available optical transport layer resource information calculating.
6. alarm module reports described cooperative module by the warning information of the relevant optical transport layer resource obtaining from alarm and control system.
Wherein, described alarm module is connected with alarm and control system by alarm and control system interface, obtains the warning information of relevant optical transport layer resource, comprises the warning information of relevant optical transport layer link and/or optical transport layer interface.
7. cooperative module receives and preserves described operational indicator threshold value, optical transport layer resource information and warning information.
8. the current business index of monitoring module monitors IP bearing bed.
9. monitoring modular is according to the following operational indicator of described next time period of current business index prediction.
10. monitoring modular sends to described cooperative module by described current business index and described following operational indicator.
11. cooperative modules judge that whether the weighted array value of described current business index and described following operational indicator surpasses described operational indicator threshold value, is to continue to perform step 12, otherwise finishes whole collaborative processes.
12. cooperative modules are initiated business demand inquiry request to business module, to inquire about current business demand index.
13. business modules return to business demand index to cooperative module.
14. cooperative modules judge according to described business demand index, described optical transport layer resource information and described warning information whether current optical transport layer resource can meet described business demand index, otherwise finish whole collaborative processes, are to continue to perform step 15.
15. cooperative modules send resource allocation policy inquiry request to resource module.
16. resource modules return to resource allocation policy to described cooperative module.
17. cooperative modules calculate optical transport layer routing configuration demand according to described resource allocation policy.
18. cooperative modules issue optical transport layer routing configuration demand to configuration module.
19. configuration modules are optimized optical transport layer routing configuration according to described optical transport layer routing configuration demand.
20. configuration modules carry out routing configuration according to the optical transport layer routing configuration after optimizing to optical transport layer.
21. configuration modules are to cooperative module back light transport layer routing configuration result.
Fig. 5 is the structural representation of the resource coordinating system embodiment between IP bearing bed of the present invention and optical transport layer, in order to realize said method, as shown in the figure, this system comprises: business module 10, resource module 20, monitoring modular 30, cooperative module 40 and configuration module 50, and its operation principle is as follows:
As shown in Figure 6, the current business index of monitoring means in monitoring modular 30 31 monitoring IP bearing beds, wherein, described current business index comprises the indexs such as the flow, time delay of current business; Then, as shown in Figure 7, the first judging unit 41 in cooperative module 40 judges whether the described current business index that monitoring modular 30 monitors surpasses the described operational indicator threshold value that business module is sent, when judgment result is that of the first judging unit 41 is, by the first query unit 42, from business module 10 inquiries, obtain business demand index; Otherwise if the determination result is NO for the first judging unit 41, current business index does not surpass default operational indicator threshold value, do not need optical transport layer to carry out routing configuration, so the collaborative processes described in method ends.It should be noted that, described business module 10, when returning to business demand index to cooperative module 40, also can send new operational indicator threshold value herein, so that the operational indicator threshold value that cooperative module is being used is upgraded.
After this, the described optical transport layer resource information that the described business demand index that the second judging unit 43 inquires according to the first query unit 42 and resource module 20 are sent judges whether current optical transport layer resource can meet described business demand index; When judgment result is that of the second judging unit 43 is, by the second query unit 44, from resource module 20 inquiries, obtain resource allocation policy; If the determination result is NO for the second judging unit 43, be that current optical transport layer resource can not meet described business demand index, work in coordination with in any case adjustment and also cannot satisfy the demands, therefore can only finish this resource coordinating process, adopt existing other modes to solve.
After this, the described resource allocation policy being inquired according to the second query unit 44 by command unit 45 sends routing configuration instruction to configuration module, and according to the instruction of cooperative module 40, described optical transport layer is carried out to routing configuration by configuration module 50, concrete layoutprocedure will be referring to the related description of above-mentioned steps 160.
Described in the present embodiment, system is by carrying out real-time optimization to the routing configuration of optical transport layer, realize the resource coordinating between IP bearing bed and optical transport layer, thereby effectively configured Internet resources, expanded network capacity, the pressure of having alleviated bandwidth dilatation, has improved service experience; And the method by independently functional hierarchy realization, does not need IP bearing bed or optical transport layer self to carry out increased functionality design between IP bearing bed and optical transport layer, therefore more easily realizes and promotes.
In addition, as shown in Figure 6, described monitoring modular 30 can further include predicting unit 32, following operational indicator for described next time period of current business index prediction of monitoring according to monitoring means 31, wherein, described current business index comprises the index such as flow, time delay of current business; Described following operational indicator is for example the index of business in the next one hour of prediction; The first judging unit 41 in described cooperative module 40 is for judging whether the weighted array value of the described following operational indicator that described current business index that monitoring means 31 monitors and predicting unit 32 predict surpasses the described operational indicator threshold value that business module is sent.
By setting up predicting unit 32, make the first judging unit 41 when judging for operational indicator threshold value, taken into account the combined influence of current business index and following operational indicator, thereby more contributed to carry out resource coordinating for following burst service.
In addition, as shown in Figure 5, in described system, can further include alarm module 60, for obtaining the warning information of relevant described optical transport layer resource and report described cooperative module 40 from alarm and control system, particularly, this alarm module 60 is connected with alarm and control system by alarm and control system interface; The described warning information that the described optical transport layer resource information that described business demand index, the resource module 20 that the second judging unit 43 in described cooperative module 40 inquires according to the first query unit 42 sent and alarm module 60 report judges whether current optical transport layer resource can meet described business demand index.
By setting up alarm module 60, make the second judging unit 43 when judging for business demand index, the optical transport layer resource information being provided in advance by resource module 20 has not only been provided, but also according to warning information, considered the current running status of optical transport layer resource, thereby make judged result more meet the actual conditions of optical transport layer resource, make the effect of resource coordinating more accurate.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can complete by the relevant hardware of program command, aforesaid program can be stored in a computer read/write memory medium, this program, when carrying out, is carried out the step that comprises said method embodiment; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.
Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (9)
1. the resource coordinating method between IP bearing bed and optical transport layer, is characterized in that, comprising:
The current business index of monitoring module monitors IP bearing bed;
Cooperative module judges whether described current business index surpasses default operational indicator threshold value, if so, from business module inquiry, obtains business demand index, and wherein, described operational indicator threshold value is a part for described business demand index;
Described cooperative module judges according to the optical transport layer resource information of described business demand index and optical transport layer whether current optical transport layer resource can meet described business demand index, if so, from resource module inquiry, obtains resource allocation policy;
Described cooperative module carries out routing configuration according to described resource allocation policy to described optical transport layer.
2. method according to claim 1, is characterized in that, also comprises: described monitoring modular is according to the following operational indicator of described next time period of current business index prediction after the current business index of described monitoring module monitors IP bearing bed.
3. method according to claim 2, it is characterized in that, described cooperative module judges whether described current business index surpasses default operational indicator threshold value and comprise: described cooperative module judges whether the weighted array value of described current business index and described following operational indicator surpasses described operational indicator threshold value.
4. method according to claim 1, it is characterized in that, described cooperative module judges described current business index also comprises before whether surpassing default operational indicator threshold value: described business module calculates described operational indicator threshold value according to the business attribute information obtaining from business management system and sends to described cooperative module.
5. method according to claim 1, it is characterized in that, described cooperative module judges according to the optical transport layer resource information of described business demand index and optical transport layer current optical transport layer resource also comprises before whether can meeting described business demand index: the optical transport layer link circuit resource information of the described optical transport layer that described resource module basis obtains from resource management system and optical transport layer interface resource information are calculated available optical transport layer resource information and sent to described cooperative module.
6. method according to claim 5, it is characterized in that, described cooperative module judges according to the optical transport layer resource information of described business demand index and described optical transport layer whether current optical transport layer resource can meet described business demand index and comprise: when described cooperative module receives the warning information of the relevant optical transport layer resource being reported by alarm module, described cooperative module judges according to described business demand index, described optical transport layer resource information and described warning information whether current optical transport layer resource can meet described business demand index.
7. the resource coordinating system between IP bearing bed and optical transport layer, is characterized in that, comprising:
Business module, for calculating operational indicator threshold value according to the business attribute information obtaining from business management system;
Resource module, for calculating the available optical transport layer resource information of optical transport layer according to the optical transport layer link circuit resource information of the described optical transport layer obtaining from resource management system and optical transport layer interface resource information;
Monitoring modular, comprises monitoring means, for monitoring the current business index of IP bearing bed;
Cooperative module, comprising:
The first judging unit, for judge monitoring module monitors to described current business index whether surpass the described operational indicator threshold value that business module is sent;
The first query unit, for when judgment result is that of the first judging unit is, obtains business demand index from business module inquiry, and wherein, described operational indicator threshold value is a part for described business demand index;
The second judging unit, the described optical transport layer resource information of sending for the described business demand index that inquires according to the first query unit and resource module judges whether current optical transport layer resource can meet described business demand index;
The second query unit, for when judgment result is that of the second judging unit is, obtains resource allocation policy from resource module inquiry;
Command unit, sends routing configuration instruction for the described resource allocation policy inquiring according to the second query unit to configuration module;
Configuration module, for carrying out routing configuration according to the instruction of cooperative module to described optical transport layer.
8. system according to claim 7, is characterized in that, described monitoring modular also comprises: predicting unit, for the following operational indicator of described next time period of current business index prediction of monitoring according to monitoring means; The described operational indicator threshold value of described the first judging unit for judging whether the weighted array value of the described following operational indicator that described current business index that monitoring means monitors and predicting unit predict is sent over business module.
9. system according to claim 7, characterized by further comprising: alarm module, for obtaining the warning information of relevant described optical transport layer resource and report described cooperative module from alarm and control system; The described warning information that the described optical transport layer resource information that described the second judging unit is sent for the described business demand index, the resource module that inquire according to the first query unit and alarm module report judges whether current optical transport layer resource can meet described business demand index.
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