CN101102215A - Access method for multi-edge multicast service - Google Patents
Access method for multi-edge multicast service Download PDFInfo
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- CN101102215A CN101102215A CNA2007101425282A CN200710142528A CN101102215A CN 101102215 A CN101102215 A CN 101102215A CN A2007101425282 A CNA2007101425282 A CN A2007101425282A CN 200710142528 A CN200710142528 A CN 200710142528A CN 101102215 A CN101102215 A CN 101102215A
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Abstract
The method comprises: providing an independent multicast LAN for each multicast service provider, and generating a correlated relation between the multicast LAN and the group address; correlating each user device to a unique multicast LAN, and generating a correlated relation between the user device information and the multicast LAN; user device sends a multicast access request, and according to the request and the correlated relation between the multicast LAN and the group address, completes the access to the multicast LAN.
Description
Technical field
The present invention relates to the method that integrated access equipment is carried out multicast service in the mechanics of communication, relate in particular under the unbundling policy, multicast service cut-in method under DSLAM (Digital subscriber line access multiplexer, digital subscriber line access multiplex) operator and the multicast operator separation case.
Background technology
At present, the competition emphasis of broadband market just from the past based on the user of the realization broadband access of " riding on a horse to enclose " formula contention, to so that the content competition direction transition gradually of abundant broadband application to be provided.
As everyone knows, competition has promoted the development of broadband access market.Since the nineties in last century, in order to break of the monopolization of existing operator to telecommunication market, promote the development of telecommunication market, before France Telecom, Deutsche Telecom etc. after the privatization of state-owned monopolization telecom operators, European Union has put into effect special law, requires the incumbent operator to rival's open network.This policy makes numerous startup carriers provide Internet service to the user by the mode of local loop unbundling, has greatly promoted the competition and the Internet development of local access market.
The broadband construction of many bandwidth operator is changed at leisure by simple hardware input, access service payes attention to content and service, and this is a kind of performance of market-ripe, and the user also begins to ponder deeply the purpose of access band.
As shown in Figure 1, under the unbundling situation, the business of access device (DSLAM or AG (AccessGateway, IAD)) belongs to different operators.In the present circumstance, distinguish the developing multicast business, the multicast address section of two operators must separate fully.Present DSL (DigitalSubscriber Loop, Digital Subscriber Loop) product is not supported the overlapping situation of different operators multicast address.Along with the increase of operator, and the continuous increase of multicast service, overlapping situation appears in address probably.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of cut-in method of multi-edge multicast service, can solve not support the problem that group address is overlapping in the present access network, allows the identical group address of different multicast provider's uses.
In order to address the above problem, the invention provides a kind of cut-in method of multi-edge multicast service, the multicast traffic stream of each multicast service provider is delivered to access device, it is characterized in that described method also comprises:
(a) dispose multicast virtual local area network independent of each other for each multicast service provider, and generate the corresponding relation of multicast virtual local area network and group address;
(b) each user device association is arrived unique multicast virtual local area network, and generate the corresponding relation of user equipment information and multicast virtual local area network;
(c) subscriber equipment sends multicast and inserts request, inquires about the corresponding relation of described multicast virtual local area network and group address according to the corresponding relation of described request and described user equipment information and multicast virtual local area network, then finishes access as if legal.
Further, the corresponding relation that generates multicast virtual local area network and group address in the described step (a) is meant: according to the multicast virtual local area network and the group address generation multicast channel table of described multicast service provider.
Further, multicast inserts the group address that request comprises the request access in the described step (c), and step (c) specifically comprises:
(c1) subscriber equipment sends multicast and inserts request, obtain the multicast virtual local area network in the corresponding relation of group address in the described request and described user equipment information and multicast virtual local area network, generate the channel query keyword, with the described multicast channel table of described channel query keyword query, if the two multicast virtual local area network that comprises and group address correspondence are respectively then asked legally, generate the multicast distribution clauses and subclauses;
(c2) find corresponding subscriber equipment according to described multicast distribution clauses and subclauses, multicast traffic stream is copied on the described subscriber equipment.
Further, described request is legal comprises that also described subscriber equipment authority meets the requirements.
Further, described multicast distribution clauses and subclauses comprise: multicast virtual local area network, group address and user equipment information.
Further, described user equipment information comprises: shelf number, slot number, port numbers, VLAN or permanent virtual connect.
In sum, the invention provides a kind of cut-in method of multi-edge multicast service, allow different multicast service provider to use identical group address, and can realize that access network and access device support different multicast data flows to use same group address.
Description of drawings
Fig. 1 is set of applications net topology figure in the prior art;
Fig. 2 is the implementing procedure figure of the inventive method;
Fig. 3 is an application example schematic diagram of the present invention.
Embodiment
Present embodiment provides a kind of cut-in method of multi-edge multicast service, and as shown in Figure 2, its specific implementation step is:
Step 101: the multicast traffic stream of each multicast service provider is delivered to access device, can adopt static state and dynamical fashion.Wherein static mode refers to that static state sets up multicast distribution tree, and multicast data flow is all transmitted along distribution tree no matter there is no user to receive; Dynamical fashion refers to an access equipment and uses IGMP (Internet Group Management Protocol:Internet igmpinternet) protocol dynamic application multicast data flow according to the multicast service situation on MVLAN.
Step 102: on access device, dispose MVLAN independent of each other (multicast virtual local area network) for each multicast service provider.
Step 103: on access device, add group address with MVLAN and generate multicast channel table, the i.e. corresponding relation of MVLAN and group address.And with MVLAN add group address as when inquiry the channel index key come the unique identification channel.Thereby can allow the identical group address of different multicast service provider's uses.
Step 104: by disposing each user device association to MVLAN, and the contingency table of generation user equipment information and MVLAN, it is the corresponding relation of MVLAN and user equipment information, require each subscriber equipment can only related MVLAN, so just that subscriber equipment is related with multicast service provider.User equipment information comprises shelf number, slot number, port numbers, VLAN or PVC (permanent virtual connection).
Step 105: subscriber equipment sends multicast to access device and inserts request, carry the multicast protocol bag, access device obtains wherein MVLAN according to the contingency table of user equipment information inquiring user facility information and MVLAN, and obtains the group address generated query keyword that request inserts in the multicast protocol bag.
Step 106: with the key word of the inquiry inquiry multicast channel table that generates, while inquiring user authority list, if the multicast channel table have with key word of the inquiry in the MVLAN that comprises and group address is corresponding respectively and user right meets the requirements that the described access request of explanation is legal, generate the multicast distribution clauses and subclauses, the multicast distribution clauses and subclauses comprise multicast virtual local area network, group address and user equipment information.
Step 107: find corresponding subscriber equipment according to the multicast distribution clauses and subclauses, multicast traffic stream is copied on this subscriber equipment, promptly finish access.
Multicast service provider can be described as operator, content supplier etc. again.
To further specify the present invention with an application example below, as shown in Figure 3:
Step 201: for ISP1 configuration MVLAN is 1000, this ISP provides groups of program streams address 239.1.1.1 to deliver to access device along MVLAN 1000 on access device;
For ISP2 is configured to MVLAN 2000, this ISP provides groups of program streams address 239.1.1.1 to deliver to access device along MVLAN 2000 on access device;
On access device, generate the multicast channel table, use respectively (1000,239.1.1.1) reach (2000,239.1.1.1) identify.
Step 202: with user 1, user 3 is associated with ISP1, and is promptly related with its MVLAN 1000, user 2 related ISP2, and promptly related with its MVLAN 2000, user/MVLAN contingency table is as follows:
| User profile | MVLAN | |
| The user 1 | ?2/1/1/1:88 | ?1000 |
| The user 2 | ?2/2/1/1:88 | ?2000 |
| The user 3 | ?2/3/1/1:88 | ?1000 |
Step 203: user 1, user 2, user 3 generate the multicast that inserts 239.1.1.1 and insert request according to the electronic program list request program.
Step 204: access device is received the request of user's access group, obtain MVLAN according to subscriber equipment and circuit/MVLAN contingency table, to user 1 obtain MVLAN be 1000 and the group address 239.1.1.1 of user's request constitute the channel index key (1000,239.1.1.1).
Step 205: according to the channel index key that obtains, look into channel table and user right table,, then generate the multicast distribution clauses and subclauses, channel if allow the user to browse this program: (1000,239.1.1.) outlet: 2/1/1/88.
Step 206: the multicast traffic stream of delivering to access device is looked into the multicast distribution clauses and subclauses according to MVLAN and group address, obtain outlet information, and multicast traffic stream copied on the corresponding outlet user, the 239.1.1.1 program stream of ISP1 is distributed to user 1 and user 3 in this example, and the 239.1.1.1 program stream of ISP2 is distributed to user 2.
Claims (6)
1, a kind of cut-in method of multi-edge multicast service is delivered to access device with the multicast traffic stream of each multicast service provider, it is characterized in that, described method also comprises:
(a) dispose multicast virtual local area network independent of each other for each multicast service provider, and generate the corresponding relation of multicast virtual local area network and group address;
(b) each user device association is arrived unique multicast virtual local area network, and generate the corresponding relation of user equipment information and multicast virtual local area network;
(c) subscriber equipment sends multicast and inserts request, inquires about the corresponding relation of described multicast virtual local area network and group address according to the corresponding relation of described request and described user equipment information and multicast virtual local area network, then finishes access as if legal.
2, the method for claim 1 is characterized in that, the corresponding relation that generates multicast virtual local area network and group address in the described step (a) is meant: according to the multicast virtual local area network and the group address generation multicast channel table of described multicast service provider.
3, method as claimed in claim 2 is characterized in that, multicast inserts the group address that request comprises the request access in the described step (c), and step (c) specifically comprises:
(c1) subscriber equipment sends multicast and inserts request, obtain the multicast virtual local area network in the corresponding relation of group address in the described request and described user equipment information and multicast virtual local area network, generate the channel query keyword, with the described multicast channel table of described channel query keyword query, if the two multicast virtual local area network that comprises and group address correspondence are respectively then asked legally, generate the multicast distribution clauses and subclauses;
(c2) find corresponding subscriber equipment according to described multicast distribution clauses and subclauses, multicast traffic stream is copied on the described subscriber equipment.
4, method as claimed in claim 3 is characterized in that, described request is legal to comprise that also described subscriber equipment authority meets the requirements.
5, method as claimed in claim 3 is characterized in that, described multicast distribution clauses and subclauses comprise: multicast virtual local area network, group address and user equipment information.
6, as claim 1,3 or 5 described methods, it is characterized in that described user equipment information comprises: shelf number, slot number, port numbers, VLAN or permanent virtual connect.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2007101425282A CN100488104C (en) | 2007-08-15 | 2007-08-15 | Access method for multi-edge multicast service |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101702689B (en) * | 2009-11-30 | 2012-07-04 | 迈普通信技术股份有限公司 | Transmission control method with balanced multicast service data load and access device thereof |
| CN102611947A (en) * | 2011-11-24 | 2012-07-25 | 中兴通讯股份有限公司 | Method, system and media server for establishing multicast channel |
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2007
- 2007-08-15 CN CNB2007101425282A patent/CN100488104C/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101702689B (en) * | 2009-11-30 | 2012-07-04 | 迈普通信技术股份有限公司 | Transmission control method with balanced multicast service data load and access device thereof |
| CN102611947A (en) * | 2011-11-24 | 2012-07-25 | 中兴通讯股份有限公司 | Method, system and media server for establishing multicast channel |
| WO2013075471A1 (en) * | 2011-11-24 | 2013-05-30 | 中兴通讯股份有限公司 | Method, system and media server for creating multicast channel |
| CN102611947B (en) * | 2011-11-24 | 2017-11-17 | 中兴通讯股份有限公司 | Create method, system and the media server of multicast channel |
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| CN100488104C (en) | 2009-05-13 |
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