CN101207508B - System and method for implementation of optical network band width distribution according to need - Google Patents
System and method for implementation of optical network band width distribution according to need Download PDFInfo
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Abstract
The invention discloses a method and a system for realizing the optional network bandwidth distribution according to the needs, and solves the problems that the prior network bandwidth cannot be allocated according to the needs. The method comprises the following steps: adjustable businesses of the bandwidth are established on the optional network; the adjustable businesses of the bandwidth are carried out with real time monitoring to obtain the needs of the user for the bandwidth; according to the needs of the user to the bandwidth, the bandwidth is adjusted. The invention has the advantages that the complete real time and dynamic monitoring of the bandwidth collocation according to the needs is realized; the user terminal launching of the bandwidth allocation according to the needs can be realized, and the driving of the business demands is realized; the real resource allocation according to the needs is realized, and the utilizing efficiency of the bandwidth resource is improved; the more systematic steps of the bandwidth distribution according to the needs are given out, and the foundation for providing the businesses is laid.
Description
Technical field
The present invention relates to a kind of communication bandwidth collocation method and system, relate in particular to a kind of dynamic bandwidth collocation method and the system of optical communication network.
Background technology
In the communications network, efficient, the flexible configuration that realizes bandwidth is one of target of communications network pursuit.Development along with social demand and telecommunication market, bright and clear gradually to bandwidth demand assigned demand, this mainly comes from three aspects: the one,, because the use of the Internet fast development and other data message equipment, make the customer service environment change to data service by traditional voice service, thereby caused the datumization of the bearer service of optical fiber transmission network, and a distinguishing feature of data service is the sudden of its business, and the demand that dynamically provides as required has been provided this presentation mode to transmission bandwidth.The 2nd,, active user's business demand requires telecom operators/service provider can be according to user's request, and configuration service circuit in real time is as the configuration of special line, private network and interim burst communication circuit etc.; The 3rd,, liberalized telecommunication market gradually, make telecom operators/service provider experience by " technology driving " transformation to " business-driven ", how the business that has more the market competitiveness is provided, it is the key of its survival and development, and realize that bandwidth is distributed according to need/provided is one of key technology that realizes its target, by this technology, can realize the flexible configuration of bandwidth resources, meet consumers' demand, the abundant more business of exploitation supplies a pattern, and increases professional added value, promotes professional competitiveness.Therefore, under current telecommunication market environment, bandwidth demand assigned demand is very clear and definite.
Yet be subjected to technical limitations, current network bandwidth configuration of carrying out mainly realizes by human configuration on the basis of off-line planning, because traditional transmission network is many based on centralized network ma nagement, and transport plane equipment lack of wisdom, so time and effort consuming when carrying out band width configuration is difficult to realize dynamically, band width configuration flexibly.Current, in order to satisfy the dynamic bandwidth configuration needs that constantly occurs, according to prior art also to the bandwidth demand assigned support carried out some trials, but be based on network management system realizes more, at first in different time sections the demand of bandwidth is determined the adjustment strategy of a cover based on time period/time frame according to business, work as each time frame then based on this strategy, the bandwidth adjustment strategy of safeguarding by webmaster carries out band width configuration with the bandwidth demand parameter in this time frame, therefore, this strictly speaking bandwidth based on webmaster is distributed according to need and is based on the quasi real time adjustment based on business strategy of time period/time frame, but not the dynamic on-demand band width configuration based on user's real-time requirement on the complete meaning.
The proposition of ASON/ASON and practice, because it is by introducing and expansion to data network signal and Routing Protocol, in transmission network, increased a control plane, can realize the professional quick pathfinding that connects and be connected foundation by it, the real-time providing capability of professional connection is provided for transmission network, simultaneously, the bandwidth of transmission aspect is adjusted the development of supporting technology and has also been created technical conditions for the adjustment of professional connection bandwidth, these not only make the distribution according to need of real-time bandwidth possess the possibility that realizes, also lay a good foundation for carrying out providing of bandwidth distribution service on demand from the aspect of adding system more.
Summary of the invention
Deposit the defective and the deficiency of carrying at prior art, the purpose of this invention is to provide a kind of realization optical network band width demand assigned method and system.With reach to the transmission network bandwidth resource as required, dynamically, the real-time purpose of configuration.
For achieving the above object, the present invention by the following technical solutions: the present invention realizes optical network band width demand assigned method, comprising:
Steps A is set up bandwidth and can be adjusted business on described optical-fiber network;
Step B can adjust business to described bandwidth and carry out real time monitoring, obtains the demand of user to bandwidth;
Step C according to the demand of user to bandwidth, adjusts bandwidth.
Step D according to the bandwidth needs, connects deletion with current business.
Described steps A is specially:
Steps A 2 receives the professional request of setting up, and then triggers the routing function of service control function by service initiation request information, carries out the pathfinding that bandwidth connects, and obtains the professional explicit route that connects;
Steps A 3 by the signaling capability of service control function, is initiated professional connection building process;
Steps A 4 is set up the complete routing iinformation that message is carried by the path, realizes the triggering to the service implementation function, finishes the resource distribution that transmits the plane network element;
Steps A 5 is finished professional establishment of connection, and the reporting service controlled function enters professional normal operating condition, triggers the service operation function for monitoring simultaneously.
Described step B comprises:
Step B1, service operation Status Monitor monitoring traffic bandwidth running status or client's service access state are analyzed and are determined the service bandwidth operational requirements;
Step B2, the service operation Status Monitor is acted on behalf of the feedback bandwidth demand to user or service-user, when service bandwidth is adjusted demand, triggers the business operation request and initiates.
Described step C comprises:
Step C1, according to the bandwidth needs, the professional function of initiating is sent bandwidth adjustment request;
Step C2, when receiving the bandwidth adjustment operations request, then signaling protocol processor resolution request message obtains the primary bandwidth adjustment information;
Step C3, bandwidth is adjusted strategy controller and is carried out bandwidth adjustment policy control, determines bandwidth adjustment parameter according to the basic service parameter that the bandwidth adjustment information is carried, and mainly comprises parameters such as bandwidth adjustment direction and bandwidth adjusting range;
Step C4 adjusts parameter by bandwidth adjustment information interface dynamic bandwidth adjustment controller with bandwidth and sends to transmission plane bandwidth resources adjustment controller;
Step C5 adjusts parameter according to the bandwidth that service control function is determined, bandwidth resources are adjusted the bandwidth of controller triggering and control service implementation function and adjusted flow process, adjust actuator by bandwidth and implement the bandwidth adjustment;
Bandwidth control strategy under recessive mode: step C3 is specially: the bandwidth parameter that signaling message is carried compares with local this old bandwidth parameter that is connected of preserving, then showing greater than old bandwidth as new bandwidth parameter to increase bandwidth, will reduce bandwidth less than then showing, the absolute value of new and old parameter difference then is the bandwidth adjusting range.
Described step D is specially:
Step D1, according to the bandwidth needs, the professional function of initiating is sent the bandwidth removal request;
Step D2 if service control function receives bandwidth adjustment request, then initiates path deletion message by the signaling capability of business control, carries out the path deletion;
Step D3, after path deletion finishes, the reporting service controlled function, the winding-up Stateful Inspection, and business record information put in storage.
Realize optical network band width demand assigned device, comprising:
Demand distribution service is initiated functional module: according to the service bandwidth needs, initiate the bandwidth distribution service on demand solicited message in real time;
Demand distribution service control function module: parse the bandwidth adjustment information from the bandwidth distribution service on demand solicited message, adjust policy control according to this information and executing service bandwidth;
Demand distribution service is implemented functional module: the real-time bandwidth on-demand of carrying out bandwidth distribution service on demand distributes and the dynamically harmless adjustment of service bandwidth.
Described demand distribution service is initiated functional module and comprised: dynamic bandwidth service-user/customer service agency (1) and User Network Interface (2), dynamic bandwidth service-user/customer service agency (1) initiates the bandwidth distribution service on demand solicited message in real time by User Network Interface (2).
Described demand distribution service control function module comprises:
Service operation Status Monitor (3) is used for monitoring traffic bandwidth running status or client's service access state, triggers dynamic bandwidth service-user/customer service agency and initiates the bandwidth distribution service on demand solicited message;
Signaling protocol processor (4) is used to resolve the bandwidth distribution service on demand solicited message, obtains primary bandwidth and adjusts parameter and demand;
Bandwidth is adjusted strategy controller (5), adjusts parameter and demand according to primary bandwidth, carries out bandwidth on-demand and adjusts policy control.
Described demand distribution service is implemented functional module:
Bandwidth resources are adjusted controller (7), receive the bandwidth of resolving from the band-width tactics controller and adjust parameter, and carry out transport layer and wear wide adjustment flow process, adaptive physical layer bandwidth adjustment technology, control bandwidth is adjusted actuator and is carried out the bandwidth adjustment;
Bandwidth is adjusted actuator (8), adjusts under controller (7) control in bandwidth resources, carries out the bandwidth adjustment.
Described service bandwidth adjustment strategy is under dominant mode: identify the position expansion in demand signalling message, obtain operation information by different sign position states, carry out the bandwidth operation control strategy; Can be set as follows mode of operation in view of the above, identify 4 kinds of bandwidth operation with dominance:
Set up state: identify this request message and be used for setting up the service link connection;
Increase bandwidth status: identify this request message and be used for carrying out the bandwidth adjustment and will increase bandwidth;
Reduce bandwidth status: identify this request message and be used for carrying out the bandwidth adjustment and will reduce bandwidth;
Deletion state: identify this request message and be used for deleting the service bandwidth connection.
Described service bandwidth adjustment strategy is under recessive mode: by changing the handling process of signaling, carry out the policy control of bandwidth operation:
1, searches according to the professional connection identifier (CID in the demand signalling message and whether have this connection, if there is no then think new service connection request to enter the real time business connection building process;
If 2 exist this connection, then the service bandwidth parameter of carrying according to demand signalling message is judged that this request message is used for connecting and is refreshed or the dynamic bandwidth adjustment;
If the bandwidth parameter that carries in the 3 signaling message related objects is identical with the parameter of local this connection of preserving, shows that this signaling message is used for carrying out to connect refreshing, otherwise be the dynamic bandwidth adjustment;
4, the bandwidth parameter that carries in the signaling message related object is compared with local this old bandwidth parameter that is connected of preserving, then showing greater than old bandwidth as new bandwidth parameter to increase bandwidth, will reduce bandwidth less than then showing, the absolute value of new and old parameter difference then is the bandwidth adjusting range.
The present invention can adjust business to bandwidth and carry out real time monitoring, obtains the demand of user to bandwidth; According to the demand of user, bandwidth is carried out in time dynamically adjusting to bandwidth.The concrete strategy of adjusting has dominance and recessive dual mode.Under the dominant mode: in demand signalling message, identify the position expansion, obtain operation information, carry out the bandwidth operation control strategy by different sign position states.Under recessive mode; Signaling message is not carried out big expansion,, carry out the policy control of bandwidth operation by changing the handling process of signaling.Real-time business foundation/deletion/adjustment is unified complete bandwidth demand assigned framework.Therefore the present invention compared with prior art has following beneficial effect: can realize real-time fully, dynamically realization that bandwidth disposes as required; Can realize the user side initiation that bandwidth disposes as required, realize that business demand drives; Realize real resource allocation as required, improved the bandwidth resources utilization ratio; Provided the more bandwidth distribution according to need step of adding system, the business of having established provides the basis.
Description of drawings
Fig. 1 is the bandwidth demand assignment function schematic diagram based on ASON of the present invention;
Fig. 2 is the bandwidth distribution according to need flow chart based on ASON of the present invention;
Fig. 3 is the bandwidth based on the ASON of the present invention concrete implementing procedure figure that distributes according to need;
Fig. 4 is the bandwidth distribution according to need signaling procedure figure based on ASON of the present invention.
Embodiment
The present invention is described in further detail with concrete enforcement below in conjunction with accompanying drawing.
With reference to accompanying drawing 2,3 technical schemes of the present invention be: realize optical network band width demand assigned method and system, utilize professional signaling control and the dynamic providing capability that is connected of connecting of ASON control plane, by the enhancing that the expansion and the bandwidth of signaling protocol bandwidth operation information are adjusted strategy, in conjunction with transport layer bandwidth adjustment technology, provide business as required to connect dynamic assignment and dynamically adjustment, realize real-time dynamic bandwidth distribution according to need based on the ASON distributed control plane.
Initiate the distribution according to need that function, service control function and service implementation function can realize service bandwidth based on business, be divided into: professional foundation, traffic supervision, business reorganization, four core processes of professional deletion, constituted full implementation flow process, specified as follows based on the bandwidth allocation method based on demand of ASON/ASON:
The first step: on described optical-fiber network, set up bandwidth and can adjust business
The process of foundation is actually a service-user/customer service agency and initiates the professional process that connects the request of foundation, be that process is set up in the connection that a bandwidth is grown out of nothing, under the support of ASON real-time bandwidth providing capability, also be an important part of bandwidth distribution according to need.
Specifically comprise the steps:
1, the professional function (service-user/webmaster service request agency) of initiating is sent the professional request of setting up, and solicited message is carried service identification and business operation attribute by aforementioned manner;
2, be judged as the professional request of setting up according to the service identification state, then trigger the routing function of service control function, carry out the pathfinding that bandwidth connects, obtain the professional explicit route that connects by service initiation request information;
3,, initiate professional connection building process by the signaling capability of service control function;
4, set up the complete routing iinformation that message is carried by the path, realize triggering, finish the resource distribution that transmits the plane network element the service implementation function;
5, finish professional establishment of connection, the reporting service controlled function enters professional normal operating condition, triggers the service operation function for monitoring simultaneously.
Second step: can adjust business to described bandwidth and carry out real time monitoring, obtain the demand of user to bandwidth
The service operation monitor portion is mainly finished the professional supervision of already present operation, specifically can obtain service bandwidth and use information and client's service access information, obtain bandwidth thus to set up as required/adjust/demand of deleting, trigger the initiation of professional client's bandwidth adjustment request information.
Specifically comprise the steps:
1, the service operation Status Monitor carries out the supervision of running status;
2, obtain service bandwidth running status or client's service access state, determine the service bandwidth operational requirements by analyzing;
3, the service operation Status Monitor is acted on behalf of the feedback bandwidth demand to user or service-user, when service bandwidth is adjusted demand, triggers the business operation request and initiates;
4, if carrying out bandwidth adjustment request initiates, then forwarded for the 3rd step to, initiate, then forwarded for the 4th step to if connect removal request.
The 3rd step:, bandwidth is adjusted according to the demand of user to bandwidth
The bandwidth adjustment is the Core Feature that bandwidth on-demand distributes.What it was realized is the process of dynamically adjusting professional connection bandwidth according to the bandwidth adjustment request instruction of service-user or customer service agency initiation.
Specifically comprise the following steps:
1, according to the bandwidth needs, the professional function (service-user or service-user agency) of initiating is sent bandwidth adjustment request, and solicited message is carried service identification and business operation attribute by aforementioned manner;
2, when receiving the bandwidth adjustment operations request, then signaling protocol processor resolution request message obtains the primary bandwidth adjustment information;
3, bandwidth is adjusted strategy controller and is carried out bandwidth adjustment policy control according to aforementioned schemes, determine bandwidth adjustment parameter according to the basic service parameter that the bandwidth adjustment information is carried, mainly comprise bandwidth adjustment direction (bandwidth increase/minimizing) and bandwidth adjusting range parameters such as (the bandwidth numerical value of adjustment);
4, by bandwidth adjustment information interface dynamic bandwidth adjustment controller bandwidth is adjusted parameter and send to transmission plane bandwidth resources adjustment controller;
5, the bandwidth of determining according to service control function is adjusted parameter, and bandwidth resources are adjusted the bandwidth of controller triggering and control service implementation function and adjusted flow process, adjust actuator by bandwidth and implement the bandwidth adjustment;
6, the bandwidth adjustment finishes, the reporting service controlled function, and forward the step 1 in second step to and carry out the supervision of running status again;
The 4th step:, current business is connected deletion according to the bandwidth needs
The bandwidth delete procedure is carried out bandwidth deletion as required, and the business that exists is connected deletion.
Specifically comprise the steps:
1, according to the bandwidth needs, the professional function (service-user or service-user agency) of initiating is sent the bandwidth removal request, and solicited message is carried service identification and business operation attribute by aforementioned manner;
2, if service control function receives bandwidth adjustment request, then initiate path deletion message by the signaling capability of business control, carry out the path deletion;
3, after path deletion finishes, the reporting service controlled function, the winding-up Stateful Inspection, and business record information put in storage.
With reference to accompanying drawing 1, realize optical network band width demand assigned device, comprising:
Demand distribution service is initiated functional module: according to the service bandwidth needs, initiate the bandwidth distribution service on demand solicited message in real time;
Demand distribution service control function module: parse the bandwidth adjustment information from the bandwidth distribution service on demand solicited message, adjust policy control according to this information and executing service bandwidth;
Described service bandwidth adjustment strategy is divided into dominance and recessive dual mode:
Dominant mode is: identify the position expansion in demand signalling message, obtain operation information by different sign position states, carry out the bandwidth operation control strategy; Can be set as follows mode of operation in view of the above, identify 4 kinds of bandwidth operation with dominance:
Set up state: identify this request message and be used for setting up the service link connection;
Increase bandwidth status: identify this request message and be used for carrying out the bandwidth adjustment and will increase bandwidth;
Reduce bandwidth status: identify this request message and be used for carrying out the bandwidth adjustment and will reduce bandwidth;
Deletion state: identify this request message and be used for deleting the service bandwidth connection.
Recessive mode is: by changing the handling process of signaling, carry out the policy control of bandwidth operation:
1, searches according to the professional connection identifier (CID in the demand signalling message and whether have this connection, if there is no then think new service connection request to enter the real time business connection building process;
If 2 exist this connection, then the service bandwidth parameter of carrying according to demand signalling message is judged that this request message is used for connecting and is refreshed or the dynamic bandwidth adjustment;
If the bandwidth parameter that carries in the 3 signaling message related objects is identical with the parameter of local this connection of preserving, shows that this signaling message is used for carrying out to connect refreshing, otherwise be the dynamic bandwidth adjustment;
4, the bandwidth parameter that carries in the signaling message related object is compared with local this old bandwidth parameter that is connected of preserving, then showing greater than old bandwidth as new bandwidth parameter to increase bandwidth, will reduce bandwidth less than then showing, the absolute value of new and old parameter difference then is the bandwidth adjusting range.
Demand distribution service is implemented functional module: the real-time bandwidth on-demand of carrying out bandwidth distribution service on demand distributes and the dynamically harmless adjustment of service bandwidth.
Described demand distribution service is initiated functional module and comprised: dynamic bandwidth service-user/customer service agency (1) and User Network Interface (2), dynamic bandwidth service-user/customer service agency (1) initiates the bandwidth distribution service on demand solicited message in real time by User Network Interface (2).
Described demand distribution service control function module comprises:
Service operation Status Monitor (3) is used for monitoring traffic bandwidth running status or client's service access state, triggers dynamic bandwidth service-user/customer service agency and initiates the bandwidth distribution service on demand solicited message;
Signaling protocol processor (4) is used to resolve the bandwidth distribution service on demand solicited message, obtains primary bandwidth and adjusts parameter and demand;
Bandwidth is adjusted strategy controller (5), adjusts parameter and demand according to primary bandwidth, carries out bandwidth on-demand and adjusts policy control.
Described demand distribution service is implemented functional module:
Bandwidth resources are adjusted controller (7), receive the bandwidth of resolving from the band-width tactics controller and adjust parameter, and carry out transport layer and wear wide adjustment flow process, adaptive physical layer bandwidth adjustment technology, control bandwidth is adjusted actuator and is carried out the bandwidth adjustment;
Bandwidth is adjusted actuator (8), adjusts under controller (7) control in bandwidth resources, carries out the bandwidth adjustment.
Based on technical scheme of the present invention and above-mentioned concrete implementing procedure, can the bandwidth distribution according to need technology (BOD:Bandwidth on Demand) based on ASON be described, this embodiment can effectively illustrate technical scheme of the present invention, but technical scheme of the present invention application is not limited in this embodiment.
The BOD business is based on ASON photosphere business, and its enforcement need comprise the support of ASON service-user, control plane, management plane, several parts in transmission plane.Its User Part can be realized by the subscriber equipment expansion that possesses User Network Interface (UNI:User NetworkInterface) function, signaling capability (as: RSVP-TE) based on ASON/ASON control plane, by expanding the initiation function that can realize professional foundation, business reorganization and professional removal request, finish the business of technical scheme and initiate function; Its control plane possesses route, signaling and resource management function, rebuild the response that can realize by expansion and function to service request, and can finish the routing procedure of service path selection and the signaling procedure that the path is set up, and the real-time connection presentation mode that connects (SC:Switched Connection) based on exchange, and can be by the connection control interface (CCI:Connection Control Interface) between control plane and the transmission plane, carrying out associative operation information issues to transmitting the plane, trigger the business operation flow process that transmits the plane, it can finish the service control function of technical scheme; The professional plane of transmitting is made up of the optical-fiber network network element device that possesses bandwidth adjustment function, can carry out adjustment of wavelength path bandwidth or the adjustment of time slot path bandwidth by the enhancing of bandwidth resources being adjusted function, finish by the SDH equipment that possesses LCAS and Virtual Concatenation function in this embodiment, the network element that is in professional access path end points is to carry out the equipment that bandwidth is adjusted, can be by the bandwidth operation order (foundation/adjustment/deletion) of CCI reception from control plane, it can finish the service implementation function in the technical solution of the present invention.
The solicited message that the BOD bandwidth is adjusted can be carried out by Path message, can expand respectively to show one's color or recessive mode is carried correlation bandwidth and adjusted parameter its ADMIN_STATUS or SENDER_TSPEC object; Response and acknowledge message are used Resv, PathErr and ResvConf respectively, and these several message do not need expansion in the bandwidth adjustment, and handling process and connection foundation is identical.
Carry out the expansion of two sign positions in the present embodiment by ADMIN_STATUS object reserved place to RSVP-TE, but 4 kinds of bandwidth operation states of dominance sign.If it is M, N that bidding is known the position, then wherein state 1 (M=0, N=0) can identify this request message and be used for setting up the service link connection; Its state 2 (M=0, N=1) can identify this request message and be used for carrying out the bandwidth adjustment and will increase bandwidth; Its state 3 (M=1, N=0) can then identify this message and be used for carrying out the bandwidth adjustment and will reduce bandwidth; Its state 4 (M=1, N=1) can identify the deletion service bandwidth and connect.
In this embodiment, in conjunction with the accompanying drawings 2, accompanying drawing 3 and accompanying drawing 4 can be described below ASON/ASON BOD handling process:
Set up bandwidth and can adjust business on described optical-fiber network, concrete steps are as follows:
1, by uni interface to providing network to initiate request, can carry out by the RSVP_Path message of RSVP-TE signaling protocol, connect to set up and should carry BOD service identification and business reorganization parameter in the solicited message;
2, be 1 (M=0, N=0) as if a sign position M, N state, then carry out professional connection building process,, seek the professional route that satisfies current BOD business by control plane route controlled function;
3, under the situation that route obtains, control the foundation of service path, realize that SC connects foundation by signaling protocol;
4, service bandwidth is set up and is finished, and carries out normal service operation and supervision.
Can adjust business to described bandwidth and carry out real time monitoring, obtain the demand of user to bandwidth, concrete steps are as follows:
1, monitors the result according to service operation, adjust flow process if access service, then triggers bandwidth to the too high or too low variation that causes service transmission performance of the utilization rate of bandwidth;
2, user or user agent send bandwidth adjustment request by uni interface by RSVP_Path;
3, network responds user's bandwidth adjustment request, can be finished by the RSVP_Resv and the RSVP_PathErr message of RSVP-TE signaling protocol, if bandwidth adjustment request is accepted and then changes step 4, if bandwidth adjustment request is rejected and then forwards step 1 to;
4, after bandwidth adjustment request is accepted, adjust the concrete bandwidth of adjustment information decision that strategy protocol and bandwidth adjustment carry according to aforementioned bandwidth and adjust action parameter (bandwidth is adjusted direction and bandwidth adjusting range), if sign position M, N state are that 2 (M=0, N=1) then carry out the adjustment that bandwidth increases, be that 3 (M=1, N=0) then carry out the adjustment that bandwidth reduces as if sign position M, N state;
5, after determining that implementing service bandwidth dynamically adjusts, bandwidth resources are adjusted controlled function will trigger LCAS protocol responses adjustment request at the professional interface channel of BOD source end node, transport layer LCAS signaling protocol processor will be adjusted the LCAS signaling process of parameter implementation criteria according to bandwidth, the adjustment (increase/deletion) that the virtual container in the current virtual cascade group (VC:Virtual Container) member be can't harm;
6, produce LCAS order (by the LCAS control frame) between first and last two breakpoints, two end node payload mappings device synchronization actions are increased to the required new service bandwidth of user with original virtual cascade group bandwidth;
7, the adjustment of BOD service bandwidth finishes.
Its signaling procedure flow process as shown in Figure 4.In the accompanying drawing 4: UNI-C is UNI client's side, and UNI-N is that UNI network side So possesses bandwidth to adjust the business of function and connect source end Sk and possess professional connecting terminal CTRL that bandwidth adjusts function for being that Virtual Concatenation member condition EOS is that EOS identifies by So to the LCAS control word MST of Sk
Bandwidth is deletion as required, and concrete steps are as follows:
1, service-user, can be carried out by RSVP-TE signaling protocol RSVP_Path message to providing network to initiate to connect the bandwidth deletion by uni interface, connects to set up and should carry BOD service identification and business reorganization parameter in the solicited message;
2, signaling is resolved if acquisition identifies a position M, the N state is 4 (M=1, N=1), then carries out band width service and deletes flow process in real time;
3, by the control plane signaling capability, send path deletion message, the execution route deletion discharges the local bandwidth resources that connect;
4, bandwidth connection deletion is finished.
Above-mentioned is ASON/ASON BOD service implementation example handling process based on technical solution of the present invention.
Claims (5)
1. realize optical network band width demand assigned device, comprising:
Demand distribution service is initiated functional module: according to the service bandwidth needs, initiate the bandwidth distribution service on demand solicited message in real time;
Demand distribution service control function module: parse the bandwidth adjustment information from the bandwidth distribution service on demand solicited message, adjust policy control according to this information and executing service bandwidth;
Demand distribution service is implemented functional module: the real-time bandwidth on-demand of carrying out bandwidth distribution service on demand distributes and the dynamically harmless adjustment of service bandwidth;
Described service bandwidth adjustment strategy is: by changing the handling process of demand signalling message, carry out the policy control of bandwidth operation:
A, search according to the professional connection identifier (CID in the demand signalling message and whether to have this connection, if there is no then think new service connection request to enter the real time business connection building process;
If there is this connection in B, then the service bandwidth parameter of carrying according to demand signalling message is judged that this demand signalling message is used for connecting and is refreshed or the dynamic bandwidth adjustment;
If the bandwidth parameter that carries in the C demand signalling message related object is identical with the parameter of local this connection of preserving, shows that this demand signalling message is used for carrying out to connect refreshing, otherwise be the dynamic bandwidth adjustment;
D, this old bandwidth parameter that is connected that the bandwidth parameter that carries in the demand signalling message related object and this locality are preserved compare, then showing greater than old bandwidth as new bandwidth parameter to increase bandwidth, will reduce bandwidth less than then showing, the absolute value of new and old parameter difference then is the bandwidth adjusting range.
2. realization optical network band width demand assigned device according to claim 1, it is characterized in that described demand distribution service initiation functional module comprises: dynamic bandwidth service-user or customer service agency (1) and User Network Interface (2), dynamic bandwidth service-user or customer service agency (1) initiate the bandwidth distribution service on demand solicited message in real time by User Network Interface (2).
3. realization optical network band width demand assigned device according to claim 1 is characterized in that described demand distribution service control function module comprises:
Service operation Status Monitor (3) is used for monitoring traffic bandwidth running status or client's service access state, triggers dynamic bandwidth service-user or customer service agency and initiates the bandwidth distribution service on demand solicited message;
Signaling protocol processor (4) is used to resolve the bandwidth distribution service on demand solicited message, obtains primary bandwidth and adjusts parameter and demand;
Bandwidth is adjusted strategy controller (5), adjusts parameter and demand according to primary bandwidth, carries out bandwidth on-demand and adjusts policy control.
4. realization optical network band width demand assigned device according to claim 1 is characterized in that described demand distribution service enforcement functional module:
Bandwidth resources are adjusted controller (7), receive to resolve the bandwidth adjustment parameter of adjusting strategy controller from bandwidth, and carry out transport layer and wear wide adjustment flow process, adaptive physical layer bandwidth adjustment technology, control bandwidth is adjusted actuator and is carried out the bandwidth adjustment;
Bandwidth is adjusted actuator (8), adjusts under controller (7) control in bandwidth resources, carries out the bandwidth adjustment.
5. realization optical network band width demand assigned device according to claim 1, it is characterized in that described service bandwidth adjustment strategy is: in the bandwidth distribution service on demand request message, identify the position expansion, obtain operation information by different sign position states, carry out the bandwidth operation control strategy; Be set as follows mode of operation in view of the above, identify 4 kinds of bandwidth operation with dominance:
Set up state: identify this bandwidth distribution service on demand request message and be used for setting up the service link connection;
Increase bandwidth status: identify this bandwidth distribution service on demand request message and be used for carrying out the bandwidth adjustment and will increase bandwidth;
Reduce bandwidth status: identify this bandwidth distribution service on demand request message and be used for carrying out the bandwidth adjustment and will reduce bandwidth;
Deletion state: identify this bandwidth distribution service on demand request message and be used for deleting the service bandwidth connection.
Priority Applications (1)
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| CN106059954A (en) * | 2016-05-27 | 2016-10-26 | 青岛海信电器股份有限公司 | Network bandwidth regulation method and device |
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| CN101771489A (en) * | 2009-01-06 | 2010-07-07 | 华为技术有限公司 | Method and system for uniformly transmitting different types of services, communication nodes and server |
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| EP2798812B1 (en) * | 2011-12-27 | 2020-02-05 | ABB Schweiz AG | Process automation method |
| WO2013097122A1 (en) * | 2011-12-28 | 2013-07-04 | 华为技术有限公司 | Service channel bandwidth management method, relevant device and system in access network |
| CN103684811A (en) * | 2012-08-31 | 2014-03-26 | 中兴通讯股份有限公司 | Service protection method and system of composite link |
| CN102905318B (en) * | 2012-09-28 | 2015-05-27 | 华为技术有限公司 | Method, network server and access network (AN) for downlink bandwidth allocation in network |
| CN102891895B (en) * | 2012-10-18 | 2016-04-20 | 中山大学 | A kind of bandwidth optimization method of virtual mirror server |
| CN102984079B (en) * | 2012-12-18 | 2016-11-02 | 中国电子科技集团公司第十五研究所 | Control method for equalizing load and system |
| CN104080181A (en) * | 2014-06-27 | 2014-10-01 | 华为技术有限公司 | Method and device for controlling bandwidth on demand service |
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| CN107786455A (en) * | 2016-08-24 | 2018-03-09 | 中兴通讯股份有限公司 | Resource adjusting method, apparatus and system |
| CN108306750B (en) * | 2017-01-13 | 2022-07-01 | 中兴通讯股份有限公司 | Bandwidth control method and system for managing communication network and related equipment |
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