CN101409628A - Method for implementing multicast control in point-to-multi-point optical network - Google Patents
Method for implementing multicast control in point-to-multi-point optical network Download PDFInfo
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- CN101409628A CN101409628A CNA2007101628249A CN200710162824A CN101409628A CN 101409628 A CN101409628 A CN 101409628A CN A2007101628249 A CNA2007101628249 A CN A2007101628249A CN 200710162824 A CN200710162824 A CN 200710162824A CN 101409628 A CN101409628 A CN 101409628A
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Abstract
The invention relates to a method for realizing multicast control in a point-multipoint optical network. The method is realized based on terminal equipment and optical line terminal (OLT), and comprises the following steps: (1) the OLT establishes a subscriber multicast authority control table; (2) the terminal equipment transmits a subscriber multicast request message to the OLT; (3) the OLT receives the subscriber multicast request message, and searches whether the subscriber has view authority or not in the subscriber multicast authority control table according to subscriber identification carried by the subscriber multicast request message, if so, multicast flow is duplicated to a subscriber port by the terminal equipment; if not, the multicast flow is refused to be duplicated. By establishing and maintaining the subscriber multicast authority control table on the OLT, the multicast request of the subscriber is permitted or refused according to subscriber authority recorded in the subscriber multicast authority control table, so as to realize effective control on subscriber multicast authority in the point-multipoint optical network, and controllably operate IPTV service.
Description
Technical field
The present invention relates to the point-to-multi-point optical network communication technique field, particularly realize the method for multicast control in the point-to-multi-point optical network.
Background technology
Optical-fiber network is exactly the optical networking of saying usually, and its transmission medium is an optical fiber.In common network, data-signal is carrier with the electricity, distinguishes 0 and 1 by the height of voltage, and in optical-fiber network, what carry data is laser, and by generating laser, the laser of emission varying strength distinguishes 0 and 1.Because what common twisted-pair feeder used is the signal of telecommunication, limited transmission distance system, for example the theoretical maximum transmission distance of 5 class lines is about 100 meters.Use fiber network, light signal transmits on optical fiber, and according to the type of optical fiber and the power of signal generator, the transmission range of monomode fiber can reach tens kilometers.The backbone network in general city all is an optical networking.
Along with the continuous development and the light of Access Network advances the evolution that copper moves back, Optical Access Network is more and more universal, and its mid point has vast potential for future development to the optical network system of multiple spot the most suitable user's practical business demand.IPTV (Internet Protocol Television, Web TV) business is a kind of important application of point-to-multi-point optical network.
In the optical-fiber network of putting multiple spot, carry out in the process of IPTV business, carry out the control of multicast and when duplicating,, therefore can't carry out effective multicast authority control the user because existing multicast protocol lacks the management to the multicast user.
Summary of the invention
The technical problem to be solved in the present invention provides the method that realizes multicast control in a kind of point-to-multi-point optical network, can effectively control user's multicast authority, can run the IPTV business with managing.
In order to address the above problem, realize the method for multicast control in the point-to-multi-point optical network provided by the present invention, realize based on terminal equipment and local side apparatus, may further comprise the steps:
(1) described local side apparatus is set up the user multicast power control table;
(2) described terminal equipment sends the user multicast request message to described local side apparatus;
(3) described local side apparatus receives described user multicast request message, whether the User Identity that carries according to described user multicast request message is inquired about this user in described user multicast power control table and is had and watch authority, if have, multicast data flow is copied to user port by described terminal equipment; If no, the refusal multicast data flow is duplicated.
Further, in the described step (1), described local side apparatus obtains described user multicast power control table from the Web TV OSS.
Further, in the described step (1), the business management system of described local side apparatus from network management system obtained described user multicast power control table.
Further, further comprising the steps of between described step (1) and the step (2):
(1a) described local side apparatus is according to the multicast control table of described user multicast power control table foundation based on terminal equipment, and described local side apparatus sends to described terminal equipment with described multicast control table based on terminal equipment.
Further, in the described step (3), user's ownership is prescribed a time limit, and described local side apparatus duplicates described multicast data flow to described terminal equipment earlier, and described terminal equipment sends to corresponding user port according to described multicast control table with described multicast data flow.
Further, the User Identity that carries of described user multicast request message is user's multicast ip address or user account.
Further, the user multicast request message generates and sends described terminal equipment by the subscriber computer top box described in the described step (2).
Further, described user watch authority comprise forbid, preview and permission.
The present invention is by setting up and safeguard the user multicast power control table of a cover based on ONU equipment on local side apparatus OLT, according to the user right permission of putting down in writing in this user multicast power control table or the multicast request of refusing user's, thereby realized in point-to-multi-point optical network, controlling effectively user's multicast authority, can run the IPTV business with managing.
Description of drawings
Fig. 1 is a structured flowchart of realizing the system of multicast control in the point-to-multi-point optical network of the present invention;
Fig. 2 is a flow chart of realizing a kind of Application Example of the method that multicast is controlled in the point-to-multi-point optical network of the present invention.
Embodiment
The method of the present invention's design is at the optical network OLT of putting multiple spot (Optical Line Terminal, local side apparatus) and ONU (Optical Network Unit, terminal equipment) in, set up and safeguard the user multicast power control table of a cover based on ONU equipment, by these control of authority tables, user's multicast channel request message is carried out control of authority handle.OLT equipment receives user multicast request IGMP (Internet Group Management Protocol, the Internet igmpinternet) behind Join (request that the adds multicast group) message, the User Identity (multicast ip address) that carries according to message, whether this user of inquiry has the corresponding authority of this channel in the user multicast power control table, if authority is arranged, then accept user's request, multicast data flow is duplicated to the user, otherwise the refusal multicast data flow is duplicated, reach effective control user's multicast authority, can run the IPTV business with managing.
The invention will be further described below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
The present invention is based on terminal equipment and local side apparatus and realize that as shown in Figure 1, terminal equipment and local side apparatus interconnect, and may be connected with many station terminals equipment on the local side apparatus; Also be connected with set-top box on the terminal equipment, also be connected with the IPTV OSS on the local side apparatus.
As shown in Figure 2, realize a kind of Application Example of the method for multicast control in the point-to-multi-point optical network of the present invention, may further comprise the steps:
Step 201:OLT equipment obtains the multicast authority control table of user on this equipment from the OSS of IPTV, generally comprise information such as multicast channel access control right table, channel program summary table;
Step 202:OLT equipment generates the multicast control table based on ONU at each ONU equipment that is attached thereto after obtaining the user multicast power control table;
Step 203:ONU equipment obtains the user multicast control table of this ONU equipment from OLT equipment;
Step 204: when validated user was watched a multicast channel in request, user's set-top box (STB, set-top box) then can produce an IGMP join message, sends to OLT equipment by ONU equipment;
After step 205:OLT equipment received user multicast request IGMP Join message, according to the User Identity that message carries, whether this user of inquiry had the authority of this channel in the user multicast power control table; User Identity is generally user's multicast ip address, also can be identify labels such as user account;
Step 206: but the user is if having perhaps authority of preview, execution in step 207; Otherwise the refusal multicast data flow is duplicated execution in step 210;
Step 207:OLT equipment is accepted user's request, and multicast data flow is duplicated ONU equipment to the user place;
After step 208:ONU equipment receives multicast data flow, send to the user port of correspondence according to the multicast control table of this ONU equipment;
Step 209: the user watches the multicast channel program of request, finishes.
Step 210: the user is rejected, and watches the group broadcasting program less than request.
After the execution of step 210, can also return step 204, continue other multicast channels of request.
After this method was implemented, when the BTV of IPTV (Broadcast TV, radio and television) business realized by multicasting technology, OLT equipment should be supported the multicast authority controlled function based on the user, specifically comprises:
1) support to control its authority of watching to each multicast group business based on the user, authority have forbid, three kinds of previews, permission;
2) support user's multicast authority to control, only allow the user to add the multicast group of mandate or the multicast group of permission preview;
3) support based on each user the multicast access rights to be set, each user has independent authority configuration, and each user comprises whether allowing to visit certain multicast group, whether allow certain multicast group of preview etc. to the optional independent setting of the authority of each program.
In above-mentioned Application Example, OLT equipment obtains user's that this equipment connects multicast control authority table information, both can communicate acquisition by business management system in OLT equipment and the network management system, also can be directly and the OSS of IPTV communicate acquisition.
The above embodiment only is preferred embodiment of the present invention, and the present invention also can have other various embodiments.Under the situation that does not deviate from spirit of the present invention and essence thereof, those skilled in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong within the protection range of the appended claim of the present invention.
Claims (8)
1, realize the method for multicast control in a kind of point-to-multi-point optical network, realize, it is characterized in that, may further comprise the steps based on terminal equipment and local side apparatus:
(1) described local side apparatus is set up the user multicast power control table;
(2) described terminal equipment sends the user multicast request message to described local side apparatus;
(3) described local side apparatus receives described user multicast request message, whether the User Identity that carries according to described user multicast request message is inquired about this user in described user multicast power control table and is had and watch authority, if have, multicast data flow is copied to user port by described terminal equipment; If no, the refusal multicast data flow is duplicated.
2, method according to claim 1 is characterized in that, in the described step (1), described local side apparatus obtains described user multicast power control table from the Web TV OSS.
3, method according to claim 1 is characterized in that, in the described step (1), the business management system of described local side apparatus from network management system obtained described user multicast power control table.
4, method according to claim 1 is characterized in that, and is further comprising the steps of between described step (1) and the step (2):
(1a) described local side apparatus is according to the multicast control table of described user multicast power control table foundation based on terminal equipment, and described local side apparatus sends to described terminal equipment with described multicast control table based on terminal equipment.
5, method according to claim 4, it is characterized in that in the described step (3), user's ownership in limited time, described local side apparatus duplicates described multicast data flow to described terminal equipment earlier, and described terminal equipment sends to corresponding user port according to described multicast control table with described multicast data flow.
6, method according to claim 1 is characterized in that, the User Identity that described user multicast request message carries is user's multicast ip address or user account.
7, method according to claim 1 is characterized in that, the user multicast request message generates and sends described terminal equipment by the subscriber computer top box described in the described step (2).
8, method according to claim 1 is characterized in that, described user watch authority comprise forbid, preview and permission.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101628249A CN101409628A (en) | 2007-10-10 | 2007-10-10 | Method for implementing multicast control in point-to-multi-point optical network |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007101628249A CN101409628A (en) | 2007-10-10 | 2007-10-10 | Method for implementing multicast control in point-to-multi-point optical network |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010148935A1 (en) * | 2009-12-14 | 2010-12-29 | 中兴通讯股份有限公司 | Method for realizing controllable multicast, optical line terminal (olt) and gigabit passive optical network (gpon) system thereof |
| CN103166769A (en) * | 2011-12-14 | 2013-06-19 | 中兴通讯股份有限公司 | Method and system of multicast service control |
| CN103716170A (en) * | 2013-12-13 | 2014-04-09 | 上海斐讯数据通信技术有限公司 | Controllable multicast implementation method |
| CN102098165B (en) * | 2009-12-14 | 2015-06-17 | 中兴通讯股份有限公司 | Method and system for multicast preview control of Gigabit passive optical network system |
-
2007
- 2007-10-10 CN CNA2007101628249A patent/CN101409628A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010148935A1 (en) * | 2009-12-14 | 2010-12-29 | 中兴通讯股份有限公司 | Method for realizing controllable multicast, optical line terminal (olt) and gigabit passive optical network (gpon) system thereof |
| CN102098165B (en) * | 2009-12-14 | 2015-06-17 | 中兴通讯股份有限公司 | Method and system for multicast preview control of Gigabit passive optical network system |
| CN103166769A (en) * | 2011-12-14 | 2013-06-19 | 中兴通讯股份有限公司 | Method and system of multicast service control |
| CN103716170A (en) * | 2013-12-13 | 2014-04-09 | 上海斐讯数据通信技术有限公司 | Controllable multicast implementation method |
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Open date: 20090415 |