CN100388863C

CN100388863C - Service controlling method in virtual exchange system

Info

Publication number: CN100388863C
Application number: CNB2004100912511A
Authority: CN
Inventors: 陈悦鹏; 吴登超; 范灵源; 薛莉莉; 邹婷; 庆武; 廖月明; 刘军民; 胡绍基
Original assignee: Guangzhou Yuan Yuan Information Technology Consulting Co Ltd; Huawei Technologies Co Ltd
Current assignee: Guangzhou Yuan Yuan Information Technology Consulting Co Ltd; Huawei Technologies Co Ltd
Priority date: 2004-11-17
Filing date: 2004-11-17
Publication date: 2008-05-14
Anticipated expiration: 2024-11-17
Also published as: CN1780466A

Abstract

The present invention discloses a method for performing service control in a virtual switching system. A virtual switching controller (VSC) of a connection control layer and a data relaying entity (DRE) of a loading capacity layer in the virtual switching system are divided into mutually independent physical devices, and then connection can be established between a device of a service control layer in the virtual switching system and the virtual switching controller (VSC), wherein a calling subscriber which is directly connected with the device of the service control layer in the virtual switching system belongs to the virtual switching controller (VSC); the device of the service control layer in the virtual switching system sends resource requesting messages containing subscriber information to the virtual switching controller (VSC) to which the calling subscriber belongs; the virtual switching controller (VSC) to which the calling subscriber belongs can apply to a virtual switching controller (VSC) to which a called subscriber belongs for bandwidth resources through all levels of downstream virtual switching controllers (VSC); response messages of resource requests can be returned to the device of the service control layer if application is completed successfully, and otherwise the virtual switching controller (VSC) to which the calling subscriber belongs applies to the virtual switching controller (VSC) to which the called subscriber belongs for the bandwidth resources until success. With simple realization and high safe reliability, the method of the present invention is convenient for managing and maintaining services in the virtual switching system.

Description

A kind of method of in virtual exchange system, carrying out professional control

Technical field

The present invention relates to empty exchange (Virtual Switch) technology, particularly relate to a kind of system that in the V-Switch system, carries out professional control.

Background technology

The V-Switch architecture possesses perfect exchange of Ethernet Virtual Local Area Network and scheduling feature, the means of service dispatching and foundation, adjustment flexibly, and abundant and extendible two layer service providing capabilities, perfect oam instrument and information.Therefore, the V-Switch system is widely used in providing the scheduling of EVPL service, the service of Ethernet VLAN, ethernet circuit service of simulation and operator's Ethernet service etc.

Fig. 1 is the model structure schematic diagram of V-Switch system.Referring to Fig. 1, the model structure of V-Switch system logically is divided into service control layer, connects key-course and bearing capacity layer.In the practical business of prior art was realized, service control layer was physical equipment independently, is mainly professional control registration (SCR) equipment, and the load bearing equipment that connection key-course and bearing capacity layer then are integrated in same physics is on the empty switching equipment VS.

Fig. 2 is the flow chart of prior art user's access authentication in the V-Switch system.Referring to Fig. 2, in the prior art, the detailed process of user's access authentication may further comprise the steps in the V-Switch system:

Step 201: user UE sends the access authentication message (AAR) that comprises Subscriber Number, user's access pin and positional information to connected origin VS;

Step 202: origin VS judges whether the affiliated SCR of this user is the SCR that origin VS connects, if the VS that then originates from is user attaching VS, forwards step 203 to by the location number of the SCR of analysis user number acquisition user attaching; Otherwise origin VS is by centre/tandem VS or directly transmit the ownership VS that AAR connects to the SCR under the user;

Step 203: the SCR of ownership VS under coupled user transmits AAR;

Step 204: after the SCR under the user receives AAR, carry out access authentication, the transfer path along AAR returns the access authentication response message to user UE then.The access authentication response message might be access authentication success message (AAS), also might be general request refuse information (GRJ).

Fig. 3 is the flow chart of prior art call authorization in the V-Switch system.Referring to Fig. 3, in the prior art, the detailed process of call authorization and information request comprises the steps: in the V-Switch system

Step 301: calling subscriber UE1 sends call information request message (CIR) to origin VS direct-connected with it, and origin VS is by centre/tandem VS or directly transmit SCR1 under CIR to the UE1 reality;

Step 302:SCR1 judges whether the calling subscriber has the corresponding call authority, if then forward step 304 to; Otherwise, forward step 303 to;

Step 303:SCR1 is by origin VS and centre/tandem VS or directly return GRJ to UE1, finishes then;

Step 304:SCR1 is by origin VS and centre/tandem VS or directly return call information message to UE1;

Step 305: origin VS analyzes called subscriber's location number, then by centre/tandem VS or directly the purpose VS under called subscriber UE2 reality make a call;

Step 306: after purpose VS receives calling, send the SCR2 of CIR to its connection;

Step 307:SCR2 judges whether the called subscriber has the calling authority of response, if then forward step 309 to; Otherwise, forward step 308 to;

Step 308:SCR2 returns GRJ to purpose VS;

Step 309: purpose VS starts the calling release procedure, finishes then;

Step 310:SCR2 returns call information message to purpose VS, and purpose VS is by centre/tandem VS or directly return call information message to UE2, accepts this calling.

From technique scheme as can be seen, in the V-Switch of prior art system, since prior art only to the bearing capacity layer in the V-Switch system be connected key-course and carried out layering logic layers, and do not carry out the actual physical layering, and the bearing capacity layer be connected the load bearing equipment VS that key-course is integrated in same physics on.Therefore, when the business control of carrying out user's access authentication and call request, not only the SCR equipment of service control layer needs to get involved, the bearing capacity layer also needs to get involved with the load bearing equipment that is connected key-course, on these load bearing equipments, not only need supporting business stream, also need to support signaling flow, like this, not only the pathfinding process of whole signaling is quite complicated, and, the disposal ability of load bearing equipment has been proposed higher requirement, exist load bearing equipment upgrading difficulty, carry out topological sum and manage too complicated problems.

Summary of the invention

Main purpose of the present invention is to provide a kind of method of carrying out professional control in virtual exchange system, makes signaling flow only by SCR and VSC transmission, need not load bearing equipment command transmitting stream.

The objective of the invention is to be achieved through the following technical solutions:

A kind of method of carrying out professional control in virtual exchange system is separated into separate physical equipment with the empty exchange control unit VSC of the connection key-course in the virtual exchange system and the Data Relay Entity DRE of bearing capacity layer, and this method is further comprising the steps of:

Service control layer equipment in A, the virtual exchange system and the VSC under the calling subscriber direct-connected with it connect;

Business in B, virtual exchange system control registration server SCR sends the resource request message that the comprises user profile VSC under the calling subscriber;

VSC under C, the calling subscriber if apply for successfully, then returns the resource request response message to SCR by the VSC bandwidth application resource of downstream VSC at different levels under the called subscriber; Otherwise, continue the VSC bandwidth application resource under the called subscriber, until the resource bid success.

Wherein, before steps A, further comprise: SCR is according to user's request static configuration user profile, execution in step A then.

Wherein, before steps A, further comprise:

A01, calling subscriber send comprise user profile call request message to connected DRE, DRE transmits this call request message to the VSC that inserts with the calling subscriber;

The VSC that A02, calling subscriber insert sends call request message by downstream VSC at different levels VSC under the calling subscriber, and the VSC under the calling subscriber transmits this call request message to connected SCR, execution in step A then;

After step C, further comprise:

D01, SCR send the VSC of call request response message under the calling subscriber, and the VSC under the calling subscriber transmits the VSC that this call request response message inserts to the calling subscriber by upstream VSC at different levels;

The VSC that D02, calling subscriber insert is back to the calling subscriber by DRE with the call request response message.

Wherein, before steps A, further comprise:

A11, user send and insert request message to connected DRE, and DRE transmits the VSC that this access request message inserts to connected user;

The VSC that A12, user insert transmits this access request message by the downstream VSC of VSC at different levels under the user, and the VSC under the user transmits this access request message to coupled SCR;

A13, SCR carry out authentication according to the user authentication information of self storage to the user that request inserts, and the VSC under the user returns the access request response;

VSC under A14, the user transmits this access request response by upstream VSC at different levels to the VSC that the user inserts; The VSC that the user inserts transmits this access request response by DRE to the user.

Wherein, described access request response is for inserting the request success message or inserting request failure message.

Wherein, described SCR is arranged in connected VSC.

Wherein, described SCR sets up and being connected to of VSC: SCR foundation is connected with Resource Connection Initial Protocol RCIP between the VSC.

Wherein, described user profile comprises bandwidth information.

From above technical scheme as can be seen, method of the present invention is based on distributed V-Switch system, bearing capacity layer in this system be connected key-course and carried out the actual physical layering, by service control layer equipment the business in the V-Switch system is controlled, initiate the bandwidth resources application, controlling call connects, and the user is carried out operation such as access authentication.Adopt this service control layer equipment to carry out the mode of professional control, not only be convenient in virtual exchange system, carry out service management and maintenance, and realize that simply security reliability is higher.

And, in the present invention, need not command transmitting stream on the load bearing equipment, only need finish forwarding capability, the signaling flow relevant with business control gone up transmission at SCR and empty exchange control unit (VSC).Therefore, reduced requirement, made the load bearing equipment function singlenessization, also be convenient to load bearing equipment is carried out the topological sum management the load bearing equipment disposal ability.

Description of drawings

Fig. 1 is the structural representation of the V-Switch system of prior art;

Fig. 2 is the flow chart of user's access authentication in the V-Switch of prior art system;

Fig. 3 is the flow chart of customer call authentication in the V-Switch of prior art system;

Fig. 4 is the structural representation that adopts the V-Switch system of distributed mechanism;

Fig. 5 be according to of the present invention in system shown in Figure 4 the flow chart of user's access authentication;

Fig. 6 is the flow chart according to customer call authentication in system shown in Figure 4 of the present invention;

Embodiment

In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention is further described below in conjunction with the drawings and specific embodiments.

Method of the present invention is carried out improved system based on a kind of to V-Switch system shown in Figure 1, V-Switch system after the improvement adopts distributed mechanism, with connecting key-course equipment and bearing capacity layer device separates is separate physical equipment, carry out the mutual of signaling flow by independently connecting key-course equipment and service control layer equipment, by bearing capacity layer load bearing equipment transmitting data stream independently, make the load bearing equipment function singlenessization, no longer carry out signaling process.

Fig. 4 be the present invention based on the structural representation of V-Switch system of employing distributed mechanism.V-Switch system shown in Figure 4 is open in another piece patent application document of the applicant.

Referring to Fig. 4, this system comprises separate service control layer equipment, connects key-course equipment and bearing capacity layer equipment.Wherein, service control layer equipment is mainly SCR, and the various user data according to record comprise physical location, authority, charging authentication and interface capability information etc., the user is carried out authentication, and carry out associative operations such as resource bid, modification and release to connecting key-course equipment by signaling flow; Connecting key-course equipment is VSC, be responsible for the exchange resource in the maintaining network, comprise bandwidth, bearing capacity layer equipment, interface, link and VLAN etc., for data flow is selected service path, distributes the VLAN resource and is reclaimed resource etc., satisfy the qos requirement of data flow, and resource control information is issued on the bearing capacity layer equipment; Bearing capacity layer equipment, (DRE) forms by the plurality of data Delivery Function, according to the resource control information that VSC issues, carries out actual data flow and transmits.

VSC connects initialization (RCIP) agreement by resource and is connected with SCR and other VSC, and wherein, SCR can be independent of VSC, also can with VSC on same physical equipment, when SCR is independent of VSC, set up RCIP by TCP between SCR and the VSC; If SCR and VSC on same equipment, realize that by the device interior communication RCIP is connected between SCR and the VSC.VSC policy service expansion (COPS+) agreement by general opening is connected with each DRE this bearing capacity layer-management territory in, passes through COPS+ agreement and this management domain interior DRE1, DRE2, DRE3 and DRE4 such as, VSC1 and is connected.

Because SCR has increased the interactive function with VSC, be a virtual Call Agent equipment, so, can or carry out the professional control operation such as application, modification, release of resource by the mode of user's dynamic registration, cancellation by static configuration on SCR, SCR connects by RCIP agreement and VSC, and business trigger or static configuration after the bandwidth application resource.

Below, in conjunction with system shown in Figure 4 and specific embodiment explanation method of in V-Switch, carrying out professional control of the present invention.

Fig. 5 is the flow chart of a specific embodiment of user's access authentication in the V-Switch system.In the present embodiment, suppose that the VSC that user UE1 inserts is VSC1, the VSC that the SCR under the user UE1 reality connects is VSC2, and VSC1 directly links to each other with VSC2, and so, the flow process of user UE1 access authentication comprises the steps:

Step 501: user UE1 initiates to comprise the access request message of user profile to connected DRE1;

Step 502:DRE1 transmits to connected VSC1 and inserts request message;

Step 503:VSC1 determines that according to the routing iinformation of self preserving the SCR under the UE1 is SCR2 after receiving and inserting request message, sends then to insert solicited message to the VSC2 that is connected with SCR2;

Step 504:VSC2 transmits this access request message to SCR2 after receiving and inserting request message;

Step 505:SCR2 receives the access request message, and UE1 is carried out authentication, returns then and inserts request response to VSC2;

This inserts request response for inserting the request success message or inserting request failure message, if SCR2 passes through the authentication of UE1, then returns and inserts the request success message; If SCR2 does not pass through the authentication of UE1, then return the access request failure message;

Step 506:VSC2 transmits and inserts request response to VSC1;

Step 507:VSC1 transmits and inserts request response to DRE1;

Step 508:DRE1 transmits and inserts request response to UE1.

In the above-described embodiments, the affiliated SCR of the SCR under the VSC that inserts of user and user's reality is different.In other embodiments of the invention, if the SCR under the VSC of user's access is identical with the SCR under user's reality, the VSC of user's access need not to transmit and inserts request message to another VSC so, and, the VSC that the user inserts need not to return the access request response by other VSC to UE1, and the principle of its specific implementation process is identical with the principle of the foregoing description implementation procedure.

In the above-described embodiments, the affiliated VSC of the VSC that inserts of user and user's reality directly is connected.In other embodiments of the invention, if comprise one or more VSC between VSC that the user inserts and the VSC under user's reality, then the VSC of user's access sends the access request message by downstream VSC at different levels VSC under it is actual, and, VSC under user's reality need send by the VSC that upstream VSC at different levels insert to the user and insert request response, and the principle of its specific implementation process is identical with the principle of the foregoing description implementation procedure.

Fig. 6 is the flow chart according to the specific embodiment that customer call authenticates in the V-Switch system of the present invention.In this embodiment, suppose that the calling subscriber is UE1, the SCR under it is SCR2; The called subscriber is UE2, and the SCR under it is SCR1, and the VSC2 that the VSC1 of SCR1 connection is connected with SCR2 is directly continuous, and the call authorization flow process that UE1 initiates comprises the steps:

Step 601: the call request message that calling subscriber UE1 initiates to comprise user profile is to connected DRE1, and this user profile comprises the bandwidth information of number of calling user and application;

Step 602:DRE1 is to connected VSC1 forwarded call request message;

After step 603:VSC1 receives call request message, determine that according to the routing iinformation of self preserving the SCR under the UE1 is SCR2, send then and insert solicited message to the VSC2 that is connected with SCR2;

Step 604:VSC2 is to SCR2 forwarded call request message;

Step 605:SCR2 receives call request message, sets up RCIP and be connected between SCR2 and VSC2;

Step 606:SCR2 sends resource request message to VSC2, and this resource request message comprises information such as the number of calling and called and bandwidth;

Step 607:VSC2 determines that by searching routing iinformation the SCR under the called subscriber UE2 is SCR1, then to VSC1 bandwidth application resource;

After step 608:VSC2 receives the resource bid response that VSC1 returns, judge that this response is resource bid success response or the response of resource bid refusal, if the resource bid success response then forwards step 609 to; Otherwise, return step 605, proceed resource request;

Step 609:VSC2 sends the resource bid success response to SCR2;

Step 610:SCR2 returns call request and responds to VSC2 after receiving the resource request response;

Step 611:VSC2 forwarded call request responds to VSC1;

Step 612:VSC1 forwarded call request responds to DRE1;

Step 613:DRE1 forwarded call request responds to UE1.

The user is except can be by the situation of bandwidth application resource when making a call, can also apply for private line access, in this case, on the SCR under the user, carry out static configuration, this setting comprises numbers of calling and called parties and bandwidth information, SCR according to this static configuration application caller and called between the dedicated bandwidth resource, the signaling process of this process such as step 605 are to 608 descriptions.

In the above-described embodiments, the calling subscriber adheres to different SCR separately with the called subscriber, and in other embodiments of the invention, if calling subscriber and called subscriber belong to same SCR, VSC directly distributes bandwidth resources for calling subscriber and called subscriber so.

In the above-described embodiments, the VSC of calling subscriber's access is different with its actual affiliated VSC.In other embodiments of the invention, if the VSC that the calling subscriber inserts is identical with its actual affiliated VSC, the VSC of calling subscriber's access need not to transmit and inserts request message to another VSC so, and, the VSC that the user inserts need not to return the call request response message by other VSC to UE1, and the principle of its specific implementation process is identical with the principle of the foregoing description implementation procedure.

In the above-described embodiments, the VSC of calling subscriber's access directly is connected with its actual affiliated VSC.In other embodiments of the invention, if comprise one or more VSC between the VSC that the calling subscriber inserts and its actual affiliated VSC, then the VSC of calling subscriber's access sends call request message by downstream VSC at different levels VSC under it is actual, and, VSC under calling subscriber's reality need send the call request response message to the VSC that the calling subscriber inserts by upstream VSC at different levels, and the principle of its specific implementation process is identical with the principle of the foregoing description implementation procedure.

In concrete implementation process, can carry out suitable improvement, to adapt to the concrete needs of concrete condition to the method according to this invention.Therefore be appreciated that according to the specific embodiment of the present invention just to play an exemplary role, not in order to restriction protection scope of the present invention.

Claims

1. one kind is carried out the professional method of controlling in virtual exchange system, the empty exchange control unit VSC of the connection key-course in the virtual exchange system and the Data Relay Entity DRE of bearing capacity layer are separated into separate physical equipment, it is characterized in that this method is further comprising the steps of:

Business control registration server SCR in A, the virtual exchange system and the VSC under the calling subscriber direct-connected with it connect;

SCR in B, the virtual exchange system sends the resource request message that the comprises user profile VSC under the calling subscriber;

2. method according to claim 1 is characterized in that, before steps A, further comprises: SCR is according to user's request static configuration user profile, execution in step A then.

3. method according to claim 1 is characterized in that, before steps A, further comprises:

After step C, further comprise:

4. method according to claim 1 is characterized in that, before steps A, further comprises:

5. method according to claim 4 is characterized in that, described access request response is for inserting the request success message or inserting request failure message.

6. method according to claim 1 is characterized in that described SCR is arranged in connected VSC.

7. method according to claim 1 is characterized in that, described SCR sets up and being connected to of VSC: SCR foundation is connected with Resource Connection Initial Protocol RCIP between the VSC.

8. according to each described method in the claim 1 to 7, it is characterized in that described user profile comprises bandwidth information.