CN100571150C - The implementation method of controllable multicast service - Google Patents
The implementation method of controllable multicast service Download PDFInfo
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- CN100571150C CN100571150C CNB2007101530823A CN200710153082A CN100571150C CN 100571150 C CN100571150 C CN 100571150C CN B2007101530823 A CNB2007101530823 A CN B2007101530823A CN 200710153082 A CN200710153082 A CN 200710153082A CN 100571150 C CN100571150 C CN 100571150C
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Abstract
The invention discloses a kind of implementation method of controllable multicast service, this method is: the user sends multicast service to access control equipment and joins request; Access control equipment is transparent to the multicast network side with described request; And access control equipment judges this user's multicast authority, if this user has the authority of receiving group program, then access control equipment multicast traffic stream that multicast network is sent is transmitted to this user, otherwise does not transmit data to this user.
Description
Technical field
The present invention relates to the multicast network technology, particularly a kind of implementation method of controllable multicast service.
Background technology
On Internet, multimedia service such as Streaming Media, video conference and video request program etc. are becoming the important component part that information transmits.The mode of unicast of point-to-point transmission can not adapt to the professional transmission characteristic of this class, be that single-point sends the multiple spot reception, because server is necessary for the IP message copy that each recipient provides an identical content, also repeatedly transmit the message of identical content simultaneously on the network, taken ample resources.Though IP broadcast allows a main frame that an IP message is sent to the All hosts of same network, owing to not every main frame all needs these messages, thereby has wasted Internet resources.Multicast service arises at the historic moment in this case, and its appearance provides a main frame to send the method for message to specific a plurality of recipients.
Use multicast router to cooperate switch to realize multicast service together at present on the network.Network model as shown in Figure 1, the agreement of supporting on the multicast router mainly is the PIM-SD agreement.The agreement of supporting on the network switch mainly is multicast control protocol (IGMP).As Fig. 2, processing procedure was as follows when the user used group broadcasting program:
(1), the user sends the multicast service network switch that joins request;
(2), the network switch is transparent to the multicast network side with this request;
(3), multicast network sends to switch with multicast traffic stream;
(4), the network switch sends to the user with multicast traffic stream.
By above-mentioned flow process, the user just can receive the group broadcasting program data flow.Process was as follows when the user stopped using group broadcasting program:
(1), the user sends multicast service and leaves request;
(2), the network switch stops to send multicast packet to this user, simultaneously this request is transparent to multicast network one side.
(3) if the user side of the network switch has not had other users to use this multicast service, then multicast network just no longer sends multicast packet to switch.
Though existing techniques in realizing multicast service since in above-mentioned two agreements not to user's management function, the user who causes all to surf the Net can use multicast service, is not easy to operator and manages and collect the charges.
Summary of the invention
The object of the present invention is to provide a kind of implementation method of controllable multicast service, manage so that the service provider is docked access customer.
Technical scheme one of the present invention:
A kind of implementation method of controllable multicast service, multicast authority to the user in the local data base of access control equipment is configured, wherein, user's multicast authority configuration is to dispose according to customer location, described customer location is: the unique device port that distributes for the user or be unique user's VLAN ID VLAN ID of user's distribution, this method further comprises the steps:
Access control equipment receives that the multicast service that the user sends joins request;
Access control equipment is transparent to the multicast network side with described request; And
Access control equipment joins request according to the multicast service of receiving and obtains multicast address and customer location, from local data base, check this user's authority, if this user has the authority of receiving multicast business, then access control equipment multicast traffic stream that multicast network is sent is transmitted to this user, otherwise does not transmit data to this user.
Technical scheme two of the present invention:
A kind of implementation method of controllable multicast service, multicast authority to the user in the local data base of access control equipment is configured, wherein, user's multicast authority configuration is to dispose according to customer location, described customer location is: the unique device port that distributes for the user or be unique user's VLAN ID VLAN ID of user's distribution, and this method further comprises step:
(1), access control equipment receives that the multicast service that the user sends joins request;
(2), access control equipment joins request according to the multicast service received and obtains multicast address and customer location, checks this user's authority from local data base; If this user has the authority of receiving multicast business, then user's multicast service being joined request is sent to network side and continues step (3), otherwise the multicast service that abandons the user joins request, and finishes this time processing of request;
(3), access control equipment multicast traffic stream that multicast network is sent is transmitted to described user.
Technical scheme three of the present invention:
A kind of implementation method of controllable multicast service, multicast authority to the user in the local data base of access control equipment is configured, wherein, user's multicast authority configuration is to dispose according to customer location, described customer location is: the unique device port that distributes for the user or be unique user's VLAN ID VLAN ID of user's distribution, and this method further comprises step:
A, access control equipment receive that the multicast service that the user sends joins request;
B, access control equipment join request according to the multicast service of receiving and obtain multicast address and customer location, check this user's authority from local data base; If this user has the authority of receiving multicast business then continues step c, otherwise abandon user's request message, finish this time processing of request;
C, access control equipment further judge whether to send identical multicast service request to multicast network, if then carry out steps d, otherwise join request to multicast network side transmission user's multicast, carry out steps d;
The multicast traffic stream that d, access control equipment send multicast network sends to the user of authority.
Wherein:
Described control appliance is the network switch or Digital Subscriber Line Access Multiplexer.
Adopt method of the present invention, the operator can realize " become more meticulous, characterization " operation by the control of authority to the user, for different customer groups provides different services, thereby improves running income.
Description of drawings
Fig. 1 is the network model figure that realizes multicast service in the prior art;
Fig. 2 is an existing techniques in realizing multicast service principle schematic;
Fig. 3 realizes the controllable multicast service principle schematic for the present invention;
Fig. 4 realizes the flow chart of controllable multicast service scheme one for the present invention;
Fig. 5 realizes the flow chart of controllable multicast service scheme two for the present invention;
Fig. 6 is the schematic diagram of network switch may command multicast of the present invention;
Fig. 7 is the processing schematic diagram of the network switch of the present invention to user's request message;
Fig. 8 realizes the flow chart of controllable multicast service scheme three for the present invention.
Embodiment
Controllable multicast of the present invention is exactly on the network switch or Digital Subscriber Line Access Multiplexer functionally similar control appliances such as (DSLAM), utilizes related protocol to realize the control that the user inserts.As utilize multicast control protocol (be called for short IGMP), 802.1X agreement etc.Present embodiment is that the present invention will be described for example with the multicast control protocol.Networking diagram of the present invention is consulted shown in Figure 1.
In order to solve the problem of user management, set up local data base on control appliance, the authority to the user in this database is configured, and is receiving that the user joins request in the message, the authority of inquiring user and transmit according to user's control of authority message from database is consulted Fig. 3.
In multicast service, program is unique, and is corresponding one by one with multicast ip address, and user's multicast authority configuration is according to user's physical location or logical place configuration.
Carry out the authority configuration with physical location, each user distributes a unique device port, consults shown in the table one.
Carry out the authority configuration with logical place, each user distributes a unique user vlan ID, as shown in Table 2.
Table one
Table two
Consult 4, realize that with the network switch it is example that the multicast control protocol is intercepted (IPGM snooping) agreement, the flow process of controllable multicast is as follows:
(1) user sends the multicast service network switch that joins request;
(2) network switch is transparent to the multicast network side with this request, controls message is checked the user from the rights database of this locality authority according to the user who receives simultaneously;
(3) if the user has the authority of receiving group program, then the network switch is transmitted to the user with the multicast traffic stream that multicast network sends, otherwise multicast traffic stream is not sent to the transmission requesting users.
Consult 5, in order further to optimize professional control procedure, for the step among Fig. 4 (2), also can be according to whether the analysis result decision of user's rights of using is joined request to the multicast service that network side sends the user.Its process is as follows:
(1), the user sends multicast service to access control equipment and joins request;
(2), access control equipment is judged this user's multicast authority; If this user has the authority of receiving group program, then user's multicast service being joined request is sent to network side and continues step (3), otherwise abandons user's request message, finishes this time processing of request;
(3), access control equipment multicast traffic stream that multicast network is sent is transmitted to the transmission requesting users.
Consult Fig. 6, network switch controllable multicast module section comprises: user side control message receiver module, control message analysis module, IGMP message processing module (MPM) and multicast data message send control module.The IGMP message processing module (MPM) mainly is responsible for user's multicast authority analysis.
Consult Fig. 7, as follows to the processing procedure of message:
The receiver module monitoring of user side control message also receives all control messages that the user sends, and then these messages is sent to control message analysis module.
The user's message analysis module is classified to the control message according to the content of protocol domain in the control message, and the module that then various messages is sent to response is handled.If IGMP control message then sends to the IGMP message processing module (MPM); Otherwise carrying out other messages handles.
The IGMP message processing module (MPM) obtains multicast address and user's position from user's request message, whether the multicast authority according to position inquiring user from local data base of multicast address and user has authority to watch group broadcasting program to judge this user; If there is not authority, then do not carry out any operation; If authority is arranged, the multicast data message that then transmits control message sends control module.
Multicast data message sends the control mould and obtain user position information from the instruction of control messages, then according to instruction, activates this user's multicast message sending function.When receiving multicast packet, the network switch just sends to the user.
Consult shown in Figure 8ly, realize that with the network switch multicast control protocol agency (IGMP Proxy) agreement is an example, the flow process of controllable multicast is as follows:
(1) user sends the multicast service network switch that joins request.
(2) network switch is inquired about local database earlier, judges whether the user has the rights of using of multicast service.If authority is arranged then carry out step (3), if there are not rights of using, then the request message with the user abandons, and finishes this time request processing procedure.
(3), judge further whether the network switch sent identical group broadcasting program request to multicast network; If sent identical request, illustrate that group broadcasting program exists, just no longer send multicast request to multicast network; If do not send in the past, then send multicast and join request to multicast network.Multicast network is received and after the request group broadcasting program is sent to the network switch.
(4), the network switch sends to multicast packet the user of rights of using.
Wherein, the processing procedure of user's request message is consulted Fig. 6 and Fig. 7.
Process was same as the prior art when the user stopped using group broadcasting program among the present invention.
Claims (6)
1, a kind of implementation method of controllable multicast service, it is characterized in that, multicast authority to the user in the local data base of access control equipment is configured, wherein, user's multicast authority configuration is to dispose according to customer location, described customer location is: the unique device port that distributes for the user or be unique user's VLAN ID VLAN ID of user's distribution, and described method further comprises step:
Access control equipment receives that the multicast service that the user sends joins request;
Access control equipment is transparent to the multicast network side with described request; And
Access control equipment joins request according to the multicast service of receiving and obtains multicast address and customer location, from local data base, check this user's authority, if this user has the authority of receiving multicast business, then access control equipment multicast traffic stream that multicast network is sent is transmitted to this user, otherwise does not transmit data to this user.
2, the method for claim 1 is characterized in that, described access control equipment is the network switch or Digital Subscriber Line Access Multiplexer.
3, a kind of implementation method of controllable multicast service, it is characterized in that, multicast authority to the user in the local data base of access control equipment is configured, wherein, user's multicast authority configuration is to dispose according to customer location, described customer location is: the unique device port that distributes for the user or be unique user's VLAN ID VLAN ID of user's distribution, and described method further comprises step:
(1), access control equipment receives the multicast service that the user sends and joins request;
(2), access control equipment joins request according to the multicast service received and obtains multicast address and customer location, checks this user's authority from local data base; If this user has the authority of receiving multicast business, then user's multicast service being joined request is sent to network side and continues step (3), otherwise the multicast service that abandons the user joins request, and finishes this time processing of request;
(3), access control equipment multicast traffic stream that multicast network is sent is transmitted to described user.
4, method as claimed in claim 3 is characterized in that, described access control equipment is the network switch or Digital Subscriber Line Access Multiplexer.
5, a kind of implementation method of controllable multicast service, it is characterized in that, multicast authority to the user in the local data base of access control equipment is configured, wherein, user's multicast authority configuration is to dispose according to customer location, described customer location is: the unique device port that distributes for the user or be unique user's VLAN ID VLAN ID of user's distribution, and described method further comprises step:
The multicast service that a, access control equipment reception user send joins request;
B, access control equipment join request according to the multicast service of receiving and obtain multicast address and customer location, check this user's authority from local data base; If this user has the authority of receiving multicast business then continues step c, otherwise the multicast service that abandons the user joins request, and finishes this time processing of request;
C, access control equipment further judge whether to send identical multicast service request to multicast network, if then carry out steps d, otherwise join request to multicast network side transmission user's multicast service, carry out steps d;
The multicast traffic stream that d, access control equipment send multicast network sends to the user of authority.
6, method as claimed in claim 5 is characterized in that, described access control equipment is the network switch or Digital Subscriber Line Access Multiplexer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB03123335XA CN100477591C (en) | 2003-04-23 | 2003-04-23 | Method for implementing controllable multicast operation |
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| CNB03123335XA Division CN100477591C (en) | 2003-04-23 | 2003-04-23 | Method for implementing controllable multicast operation |
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| CN101141276A CN101141276A (en) | 2008-03-12 |
| CN100571150C true CN100571150C (en) | 2009-12-16 |
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| CN2008101853947A Expired - Lifetime CN101453350B (en) | 2003-04-23 | 2003-04-23 | Implementing method for controllable multicast service |
| CNB03123335XA Expired - Lifetime CN100477591C (en) | 2003-04-23 | 2003-04-23 | Method for implementing controllable multicast operation |
| CNB2007101530823A Expired - Lifetime CN100571150C (en) | 2003-04-23 | 2003-04-23 | The implementation method of controllable multicast service |
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| CNB03123335XA Expired - Lifetime CN100477591C (en) | 2003-04-23 | 2003-04-23 | Method for implementing controllable multicast operation |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN1540920A (en) | 2004-10-27 |
| CN101453350A (en) | 2009-06-10 |
| CN100477591C (en) | 2009-04-08 |
| CN101141276A (en) | 2008-03-12 |
| CN101453350B (en) | 2010-11-10 |
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