CN1881893B - Flow control system and method between QoS signalling points - Google Patents
Flow control system and method between QoS signalling points Download PDFInfo
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- CN1881893B CN1881893B CN2005100753806A CN200510075380A CN1881893B CN 1881893 B CN1881893 B CN 1881893B CN 2005100753806 A CN2005100753806 A CN 2005100753806A CN 200510075380 A CN200510075380 A CN 200510075380A CN 1881893 B CN1881893 B CN 1881893B
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Abstract
The invention relates to a flow control system between Qos signal points of communication information management, and relative method, wherein via mounting one strategy manager at the carrier control layer, when the service flux reaches preset range, use different flow control treatments to process flow control and service level control. The invention can confirm the service quality and safety, and use different strategies based on different fluxes; when the service flux of one consult conservation reaches one range, trigger relative strategy to process, to confirm the stability and reliability of service.
Description
Technical field
The present invention relates to the communication information management domain, relate in particular to flow control system and method between a kind of Qos of being applied to signalling point.
Background technology
Along with the continuous increase of Intemet scale, various network services are fallen over each other to emerge in large numbers, and advanced multimedia system emerges in an endless stream.Because real time business is comparatively responsive to characteristics such as network transfer delay, delay jitters, when sudden high FTP (file transfer protocol (FTP)) being arranged on the network or contain the business such as HTTP (HTML (Hypertext Markup Language)) of image file, real time business will be subjected to very big influence; On the other hand, multimedia service a large amount of bandwidth that accounted for, the key business that existing network will guarantee just is difficult to be transmitted reliably.So various QoS technology are arisen at the historic moment.
At present, IETF (the Internet engineering duty group) has set up a lot of service models and mechanism, to satisfy the demand of QoS (Quality of Service, service quality).What industry was relatively approved at present is to use integrated service model (Int-Serv) at the access and the edge of network, uses differentiated service model (Diff-serv) at server.Described differentiated service model (Diff-serv) ensures the QoS measure owing to only set priority level, and therefore, though it has the high characteristics of line efficiency, concrete effect is difficult to prediction.
For these reasons, industry is again that backbone network differentiated service Diff-Serv introduces an independently bearer control layer at present, sets up the special Diff-Serv qos signaling mechanism of a cover.In order to promote the application of Diff-Serv, utilized bandwidth proxy server (Bandwidth Broker) model is realized Internet resources and Topology Management on the common QBone try net that promotes of IETF and some manufacturers and research institution.In addition, also having some other manufacturer to propose similar QoS server/explorer technology manages topological resource and coordinates the QoS ability in each differentiated service Diff-Serv zone.
Above-mentioned each method all is to set up a resource management layer specially for Differentiated Services Diff-Serv network, the topological resource of supervising the network, this resource management Differentiated Services Diff-Serv mode can be called the Diff-Serv of independent bearing control layer model, and its structure as shown in Figure 1.
In the Differentiated Services of bearer control layer (Diff-Serv) model is arranged independently, bearer network Control Server (comprising bandwidth broker device (Bandwidth Broker) or QoS server/explorer) has disposed rule and network topology, is client's service bandwidth application Resources allocation.The bearer network Control Server of each management domain transmits client's service bandwidth application request and result each other by signaling, and load network resource manager is the routing information of professional application distribution etc.
The present industry Diff-Serv model scheme of the independent bearing control layer of usefulness, as the bandwidth broker device model of Qbone etc., exist implement that difficulty is big, problems such as planning and operation difficult.In existing link model,, therefore can't accomplish fail safe to connecting not to the control of the service traffics of equipment room, the professional grade of service, service quality etc. are controlled.
Therefore, need a kind of system can protecting network and the network performance of user, as cell loss ratio, cell propagation delay time and Cell Delay Variation etc. to realize predesignating.
Summary of the invention
In view of above-mentioned existing in prior technology problem, the object of the present invention is to provide a kind of flow control system and method that is applied between the qos signaling point.
The objective of the invention is to be achieved through the following technical solutions:
The invention provides a kind of flow control system that is applied between the qos signaling point, comprise bearer control layer, service control layer, logical bearers net, it is characterized in that, at bearer control layer one policy manager is installed, be used for when the service traffics between the qos signaling point reach prescribed limit, carrying out flow control according to the connected mode between service resources, Internet resources, type of service, type of message and/or the qos signaling point.
Adopt transmission control protocol TCP connection, agreement to connect between the described qos signaling point or the protocol conversation connection.
The present invention also provides a kind of flow control method that is applied between the qos signaling point, comprising:
A, determine that whether the service traffics between the qos signaling point surpass prescribed limit;
B, when service traffics surpass prescribed limit, policy manager carries out flow control according to the connected mode between service resources, Internet resources, type of service, type of message and/or the qos signaling point.
Described step B comprises:
B1, policy manager connect based on TCP realizes Flow Control, and at bandwidth value of equipment room definition of different operators interconnection, restriction is from the data flow of opposite end operator equipment, and policy manager carries out flow control by the data flow in the TCP connection between watch-dog.
Described step B comprises:
B21, mark off different connection types, type of service and different carrier networks;
The service of B22, the different brackets that provided according to above-mentioned division and operator by policy manager is carried out Flow Control and is handled.
Described connection type comprises: the agreement of equipment room connects, protocol conversation connects and/or professional the connection.
Described step B comprises:
B3, policy manager carry out Flow Control according to type of service to be handled.
Described step B3 specifically comprises:
B31, the resource request message of determining a type of service surpasses regulation or requested resource surpasses regulation;
B32, policy manager adopt corresponding strategy to carry out Flow Control and handle, and comprising: restriction resource allocation, refusal resource request, according to the priority level Resources allocation.
Described step B comprises:
B4, policy manager carry out Flow Control according to type of message to be handled, and when one type message of load network resource manager reception surpasses predetermined quantity, by policy manager the flow of the message packet of this type is controlled.
As seen from the above technical solution provided by the invention, a kind of flow control system and method that is applied between the qos signaling point that the present invention proposes can adopt different strategies according to different flows, guaranteed service quality, grade of service division is provided, has improved fail safe.
Description of drawings
Fig. 1 is traditional independently bearer control layer network system architecture figure.
Fig. 2 is applied to flow control system Organization Chart between the qos signaling point for the present invention.
Fig. 3 is applied to the operational flowchart of the flow control method between the qos signaling point for the present invention.
Embodiment
The invention provides a kind of flow control system that is applied between the qos signaling point, this system architecture as shown in Figure 2, whole C M (load network resource manager) group-network construction is formed by three layers, comprises bearer control layer, service control layer and logical bearers net.
Wherein CM is positioned at bearer control layer, is used for the resource of management logic bearer network, the resource request of the key-course of accepting business, whether decision admits calling, and the specified services flow path, each CM management certain router, the all-network resource of a CM management constitutes a territory.Pass through the application layer protocol interface between CM and service control layer, logical bearers net and other CM, as RCIP protocol interface, COPS+ protocol interface etc.
Described bearer control layer comprises a plurality of CM and a policy manager, this policy manager is used for when service traffics reach prescribed limit, distributes different Flow Control processing modes to carry out that Flow Control is handled and grade of service control according to the connection of service resources, Internet resources, type of service, type of message, equipment room.
Service control layer among Fig. 2 comprises a plurality of CA (Call Agent), as SoftSwitch, VOD Control Server, MCU etc., be used for Call Admission Control, user's request resource all needs to send request to CA earlier, CA connects by the Session agreement between each CA again to whole network application resource.
Logical bearers net among Fig. 2 comprises a plurality of UE (subscriber equipment) and directorial area, and as metropolitan area network, backbone network etc., each directorial area comprises BR (border router), ER (edge router), tandem router and office router etc.UE is connected with service control layer by the Session agreement.
The present invention also provides a kind of flow control method that is applied between the qos signaling point, and its concrete operations step comprises as shown in Figure 3:
Step 30: resource request sends to CM by CA;
In bearer control layer, user's request resource all needs to send request to CA earlier, and CA is again to CM application resource;
Step 31:CM accepts above-mentioned resource request and specified services flow path;
The accept business resource request of key-course of CM, and specified services flow path, each CM management certain router, the all-network resource of a CM management constitutes a territory, if the calling party in different territories, CM will carry out transmitting between the territory of service request.Finish between the territory of resource request message by application layer protocol such as RCIP agreement between CM and CM and transmit, the service message between CM comprises resource request, resource modifying request, resource recovery, resource query etc.;
Step 32: determine whether service traffics surpass prescribed limit?
The pre-defined service traffics scope of policy manager is used for determining whether this business needs to carry out Flow Control and handle;
Step 33: when service traffics surpassed prescribed limit, the trigger policy manager adopted different Flow Control processing modes to carry out Flow Control by policy manager and handles;
The flow control processing method that this policy manager adopts can be determined according to the connection of service resources, Internet resources, type of service, type of message, equipment room etc., the connection of this equipment room comprises that TCP connects, agreement connects and the session connection of agreement, and described flow control processing method comprises:
A, on connecting, the TCP of equipment room realizes Flow Control;
Control according to the data flow in the equipment room TCP connection, bandwidth value of definition between the access device of different operators interconnection, restriction prevents network attack from the data flow of opposite end operator equipment;
Carrying out Flow Control in B, the agreement connection at equipment room, protocol conversation connection, the professional connection handles;
Connect at the equipment room agreement, can directly control by the data traffic on the TCP; Connection is done Flow Control and can be filtered out the session association message at protocol conversation, then the data traffic of this type of message is controlled; Connection filters out service message at business equally, carries out Flow Control at this type of message then;
Because the connection of application layer protocol can be carried on one or more physical connection, connection is done Flow Control and can be marked off different connection types at agreement, type of service and different carrier network etc., make operator that the service of different brackets can be provided according to above-mentioned division, business guarantee that can be different according to different classes of enforcement, for realizing grade of service division, operator provides exploitativeness, equally agreement is carried out session connection and can be used for guaranteeing security of conversation and professional classification processing with the professional differentiation that is connected, can be to the type segmentation service grade of business, implement different Flow Controls, therefore can better guarantee professional service quality;
C, carry out Flow Control according to type of service and handle;
Handle carry out Flow Control from the resource request of same CA, when the resource request message of certain CA surpasses regulation or requested resource and surpasses regulation, can define relevant strategy and handle, comprise the distribution that limits resource, refusal resource request and according to the priority level Resources allocation;
D, carry out Flow Control according to type of message and handle;
Handle consuming time or unknown message for avoiding CA to initiate a large amount of CM, thereby cause network congestion, CM overload, finally cause other business to carry out, type according to the message that receives is carried out Flow Control, when CA when CM initiates resource inquiry information, CM controls according to the flow of this type of message of receiving;
Step 34: when service traffics do not surpass prescribed limit, carry out corresponding follow-up business and handle operation.
In sum, the present invention passes through at bearer control layer mounting strategy manager, the agreement that is implemented in equipment room connects to go up increases multi-form Flow Control processing, guaranteed professional service quality, the equipment that inserts is realized service traffics control, the division of the grade of service is provided, has improved the fail safe of service.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (8)
1. flow control system that is applied between the qos signaling point, comprise bearer control layer, service control layer, logical bearers net, it is characterized in that, described logical bearers net comprises a plurality of directorial areas, a directorial area comprises a plurality of qos signaling points, at bearer control layer one policy manager is installed, be used for when the service traffics between the qos signaling point reach prescribed limit, carrying out flow control according to the connected mode between service resources, Internet resources, type of service, type of message and/or the qos signaling point.
2. a kind of flow control system that is applied between the qos signaling point as claimed in claim 1 is characterized in that, adopts transmission control protocol TCP to connect between the described qos signaling point or the protocol conversation connection.
3. a flow control method that is applied between the qos signaling point is characterized in that, described method is applied in the described system of claim 1, and described method comprises:
A, determine that whether the service traffics between the qos signaling point surpass prescribed limit;
B, when service traffics surpass prescribed limit, carry out flow control at the policy manager of bearer control layer according to the connected mode between service resources, Internet resources, type of service, type of message and/or the qos signaling point.
4. a kind of flow control method that is applied between the qos signaling point as claimed in claim 3 is characterized in that described step B comprises:
B1, policy manager connect based on TCP realizes Flow Control, and at bandwidth value of equipment room definition of different operators interconnection, restriction is from the data flow of opposite end operator equipment, and policy manager carries out flow control by the data flow in the TCP connection between watch-dog.
5. a kind of flow control method that is applied between the qos signaling point as claimed in claim 3 is characterized in that described step B comprises:
B21, mark off different connection types, type of service and different carrier networks;
The service of B22, the different brackets that provided according to above-mentioned division and operator by policy manager is carried out Flow Control and is handled.
6. a kind of flow control method that is applied between the qos signaling point as claimed in claim 5 is characterized in that described connection type comprises: the TCP of equipment room connects, protocol conversation connects and/or professional the connection.
7. a kind of flow control method that is applied between the qos signaling point as claimed in claim 3 is characterized in that, carries out the Flow Control processing according to type of service among the described step B and specifically comprises:
B31, the resource request message of determining a type of service surpasses regulation or requested resource surpasses regulation;
B32, policy manager adopt corresponding strategy to carry out Flow Control and handle, and comprising: restriction resource allocation, refusal resource request and according to the priority level Resources allocation.
8. a kind of flow control method that is applied between the qos signaling point as claimed in claim 3 is characterized in that described step B comprises:
B4, policy manager carry out Flow Control according to type of message to be handled, and when one type message of load network resource manager reception surpasses predetermined quantity, by policy manager the flow of the message packet of this type is controlled.
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| CN2005100753806A CN1881893B (en) | 2005-06-16 | 2005-06-16 | Flow control system and method between QoS signalling points |
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| CN2005100753806A CN1881893B (en) | 2005-06-16 | 2005-06-16 | Flow control system and method between QoS signalling points |
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| CN1881893A CN1881893A (en) | 2006-12-20 |
| CN1881893B true CN1881893B (en) | 2010-08-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101360006B (en) * | 2008-06-17 | 2012-05-23 | 华为技术有限公司 | Parlay application server, SIP distributor upgrading method and apparatus |
| CN113543160B (en) * | 2020-04-14 | 2024-03-12 | 中国移动通信集团浙江有限公司 | 5G slice resource allocation method, device, computing equipment and computer storage medium |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1601971A (en) * | 2003-09-26 | 2005-03-30 | 华为技术有限公司 | Resource allocation method of bearing control layer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1601971A (en) * | 2003-09-26 | 2005-03-30 | 华为技术有限公司 | Resource allocation method of bearing control layer |
Non-Patent Citations (2)
| Title |
|---|
| 侯洪志.基于策略的QoS网络管理系统中PDP研究与设计.中国优秀硕士学位论文全文数据库信息科技辑 4.2004,(4),I139-17. * |
| 谭明佳.IP QoS在校园网中的实现.湖北民族学院学报自然科学版23 1.2005,23(1),52-55. * |
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Granted publication date: 20100818 Termination date: 20170616 |