CN101729932A - Multicast admission control method of optical fiber access network, apparatus and system - Google Patents
Multicast admission control method of optical fiber access network, apparatus and system Download PDFInfo
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- CN101729932A CN101729932A CN200810167989A CN200810167989A CN101729932A CN 101729932 A CN101729932 A CN 101729932A CN 200810167989 A CN200810167989 A CN 200810167989A CN 200810167989 A CN200810167989 A CN 200810167989A CN 101729932 A CN101729932 A CN 101729932A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
- H04L12/185—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast with management of multicast group membership
Abstract
The invention discloses a multicast admission control method of an optical fiber access network, an apparatus and a system, relates to the optical fiber access network, and solves the problems that an ONU in the prior optical fiber access network cannot cancel multicast forwarding lists and release resource in time during the multistage multicast admission control. Under the condition that an OLT refuses the admission in an embodiment of the invention, the OLT returns a notice message that the joining in a multicast group fails to the ONU so that the ONU carries out corresponding admission refusing treatment in time. The embodiment of the invention is mainly used for the optical fiber access network, in particular for the control for multicast admission when a user joins in the multicast group through the optical fiber access network.
Description
Technical field
The present invention relates to Optical Access Network, relate in particular to multicast admission control method, equipment and the system of Optical Access Network.
Background technology
Optical Access Network (OAN) is realized message transmission with optical fiber as main transmission medium.The chief component of Optical Access Network is OLT (Optical Line Terminal, optical line terminal) and ONU (OpticalNetwork Unit, optical network unit).Wherein OLT links to each other with service node, and ONU links to each other with the user.
OLT communicates by letter with the ONU of user side by optical transmission, and the function of exchange of the switch of service node and user inserted separates.ONU provides the interface of access network for the user, and the user who inserts this ONU can adopt multiple different terminal equipment.The port that ONU is connected with OLT is an optical interface, and its port that is connected with the user is an electrical interface, so ONU has light/electric translation function and electricity/light translation function.ONU is placed on the nearer place of distance users usually, has bigger flexibility.
Add multicast group when obtaining multicast data flow when the user uses OAN, its process that adds multicast group is as follows:
At first, the user need send IGMP Join (Internet Group Management Protocol access message) to the ONU of its connection, request adds multicast group, when if the data flow of this multicast group has been arranged on this ONU, then ONU does not need to send out IGMP Join message to OLT again after admitting this user to add this multicast group, otherwise ONU need send out IGMP Join message to OLT.
For OLT, its processing mode is similar with ONU, when OLT receives the IGMP Join message that ONU sends, when if the data flow of this multicast group has been arranged on this OLT, then OLT does not need to send out IGMP Join message to BAS (BAS Broadband Access Server) again, otherwise OLT need send out IGMP Join message to BAS.
When not having the data flow of described multicast group on the ONU, ONU is after admitting the user to add this multicast group, sends out IGMP Join message to OLT again.And when admitting the user to add this multicast group, the user need be joined in the multicast forward table, and be that user's reserved resource is (as bandwidth resources, memory source etc.), if OLT receives and excludes the user after the IGMP Join message that ONU sends and add this multicast group, but ONU can not learn that OLT excludes the user and adds this multicast group, and ONU can't in time delete the user and be released to user's reserved resource from multicast forward table so, causes the wasting of resources.
Summary of the invention
Embodiments of the invention provide a kind of multicast admission control method, equipment and system of Optical Access Network, make ONU in time the user to be deleted and to be released to user's reserved resource from multicast forward table.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A kind of multicast admission control method of Optical Access Network comprises:
The user that the reception optical network unit sends after admitting the user to add multicast group adds the multicast group request;
Judge whether to admit this user to add multicast group;
If do not admit this user to add multicast group, then send the notification message that this user adds the multicast group failure to optical network unit.
A kind of multicast admission control method of Optical Access Network comprises:
Receive the adding multicast group request that the user sends;
Judge whether to admit this user to add multicast group;
If admit this user to add multicast group, then this user is carried out admission processing, and add the multicast group request to optical line terminal transmission user;
This user who receives the optical line terminal transmission adds the notification message of multicast group failure;
This user is excluded processing.
A kind of optical line terminal comprises:
Receiver module is used to receive the user that optical network unit sends and adds the multicast group request after admitting the user to add multicast group;
Judge module is used to judge whether to admit this user to add multicast group;
Sending module is used for when not admitting this user to add multicast group, sends the notification message that this user adds the multicast group failure to optical network unit.
A kind of optical network unit comprises:
Receiver module is used to receive the adding multicast group request that the user sends;
Judge module is used to judge whether to admit this user to add multicast group;
Processing module is used for when admitting this user to add multicast group this user being carried out admission processing;
Sending module is used for sending the user to optical line terminal when admitting this user to add multicast group and adds the multicast group request;
Described receiver module also is used to receive the notification message that this user that optical line terminal sends adds the multicast group failure;
Described processing module also is used for when receiving described notification message this user being excluded processing.
A kind of multicast admission control system of Optical Access Network comprises optical network unit and optical line terminal;
Described optical network unit is used to receive the adding multicast group request that the user sends; And judge whether to admit this user to add multicast group; If admit this user to add multicast group, then this user is carried out admission processing, and add the multicast group request to optical line terminal transmission user; This user who receives the optical line terminal transmission adds the notification message of multicast group failure; And this user excluded processing;
Described optical line terminal is used to receive the user that optical network unit sends and adds the multicast group request; Judge whether to admit this user to add multicast group; And when not admitting this user to add multicast group, send the notification message that this user adds the multicast group failure to optical network unit.
The multicast admission control method of the Optical Access Network that the embodiment of the invention provides, equipment and system, because OLT has returned notification message to ONU when not admitting this user to add multicast group, notified this user of ONU to add the multicast group failure, ONU just can exclude processing to being the admittance user like this, make ONU in time this user to be deleted from multicast forward table, and be released to this user's reserved resource simultaneously, reduced the waste of resource.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flow chart of the multicast admission control method of the Optical Access Network that optical line terminal is carried out in the embodiment of the invention 1;
Fig. 2 is the flow chart of the multicast admission control method of the Optical Access Network that optical network unit is carried out in the embodiment of the invention 1;
Fig. 3 is the schematic diagram of optical line terminal in the embodiment of the invention 1;
Fig. 4 is the schematic diagram of optical network unit in the embodiment of the invention 1;
Fig. 5 is the schematic diagram of the multicast admission control system of Optical Access Network in the embodiment of the invention 1;
Fig. 6 is the systematic schematic diagram of Optical Access Network in the embodiment of the invention 2;
Fig. 7 is the systematic schematic diagram of Optical Access Network in the embodiment of the invention 3;
Fig. 8 is the schematic diagram of optical line terminal in the embodiment of the invention 4;
Fig. 9 is the schematic diagram of optical network unit in the embodiment of the invention 4.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Embodiment 1:
Under the situation of user by Optical Access Network request incoming multicast group, need admit control (AC to the user, Admission Control), so that the user can access corresponding resource and obtain data flow in the multicast group, present embodiment provides a kind of multicast admission control method of Optical Access Network, as shown in Figure 1, this method comprises the steps:
101, when the user wishes to add certain multicast group, this user need send to optical network unit and add the multicast group request, do multicast admission control by optical network unit then, carried out after the admission processing at optical network unit to this user, sending multicast to optical line terminal joins request, at this moment, optical network unit has been admitted user's adding multicast group request, and the user has been added in the multicast forward table of the multicast group that needs adding, reserved corresponding resource for the user simultaneously, for example: for the user distributes respective bandwidth, and the internal memory of data cached needs etc.
102, optical line terminal judges whether optical line terminal admits this user to add multicast group after receiving the request of described adding multicast group.
If 103 optical line terminals do not admit this user to add described multicast group, then send the notification message that this user adds the multicast group failure to optical network unit by optical line terminal.Can learn that by this notification message optical network unit the user adds the situation of multicast group failure, like this, optical network unit just can be handled accordingly, for example: this user is in time deleted from multicast forward table, and be released to this user's reserved resource simultaneously, thereby reduced the waste of resource.
Admit the user to add multicast group at optical network unit, and optical line terminal does not admit the user to add under the situation of multicast group, optical network unit excludes control to user's adding multicast group request, present embodiment provides a kind of multicast admission control method of Optical Access Network, as shown in Figure 2, this method comprises the steps:
201, when the user wishes to add certain multicast group, this user need send to optical network unit and add the multicast group request, when optical network unit adds the multicast group request this user of reception, control is admitted in user's request.
202, judge whether optical network unit admits this user to add multicast group.
If 203 admit this user to add multicast group, then carry out admission processing, optical network unit adds the multicast group request to optical line terminal forwarding user then.Described admission processing mainly comprises adds the user in the multicast forward table to and is user's reserved resource,
204, afterwards, if optical line terminal does not admit this user to add multicast group, this user that optical network unit will receive the optical line terminal transmission adds the notification message that multicast group is failed.
205, the optical network unit notification message that adds multicast group failure by above-mentioned user can learn that optical line terminal do not admit this user to add multicast group, and at this moment, optical network unit need exclude processing to this user.
The processing that excludes in the present embodiment mainly comprises: this user is in time deleted from multicast forward table, and be released to this user's reserved resource simultaneously, thereby reduced the waste of resource.
Corresponding to the multicast admission control method of the described Optical Access Network of Fig. 1, present embodiment provides a kind of optical line terminal, and as shown in Figure 3, this optical line terminal comprises: receiver module 31, judge module 32 and sending module 33.
Wherein, receiver module 31 is used to receive the user that optical network unit sends and adds the multicast group request; Judge module 32 is used to judge whether optical line terminal admits this user to add multicast group; If optical line terminal does not admit this user to add multicast group, then sending module 33 is used for sending the notification message that this user adds the multicast group failure to optical network unit.
Multicast admission control method corresponding to the described Optical Access Network of Fig. 2, present embodiment provides a kind of optical network unit ONU/Optical Network Terminal ONT (for for purpose of brevity, below represent ONU/ONT with optical network unit), as shown in Figure 4, this optical network unit comprises: receiver module 41, judge module 42, processing module 43 and sending module 44.
Wherein, receiver module 41 is used to receive the adding multicast group request that the user sends; Judge module 42 is used to judge whether to admit this user to add multicast group; Processing module 43 is used for when admitting this user to add multicast group this user being carried out admission processing; Sending module 44 is used for sending the user to optical line terminal when admitting this user to add multicast group and adds the multicast group request.
If excluding this user, optical line terminal adds multicast group, then can send the notification message that this user adds the multicast group failure to optical network unit, so described receiver module 41 also is used to receive the notification message that this user that optical line terminal sends adds the multicast group failure; Described processing module 43 also is used for when receiving described notification message this user being excluded processing.The processing that excludes that processing module 43 is carried out mainly comprises: this user is in time deleted from multicast forward table, and be released to this user's reserved resource simultaneously.
In general, Optical Access Network need comprise above-mentioned at least one network unit/optical network terminal and optical line terminal, and finish control to multicast admission by described network unit/optical network terminal and optical line terminal, thereby the multicast admission control system of forming Optical Access Network, as shown in Figure 5, this system comprises optical network unit 51 and optical line terminal 52.
Described optical network unit 51 is used for multicast to the user and joins request and admit control, then sends multicast to the user and adds failure as not admitting, and then carries out admission processing as admitting, and sends users to optical line terminal 51 and add the multicast group request; Described optical line terminal 52 is used to receive the user that optical network unit sends and adds the multicast group request, and judges whether optical line terminal 52 admits this user to add multicast group; If do not admit this user to add multicast group, then send the notification message that this user adds the multicast group failure to optical network unit 51; Described optical network unit 51 also is used for when this user who receives the optical line terminal transmission adds the notification message of multicast group failure this user being excluded processing.
For optical network unit commonly used at present, the processing that excludes wherein comprises: this user is in time deleted from multicast forward table, and be released to this user's reserved resource simultaneously.For optical line terminal commonly used, usually determine by Gem Port (Gigabit Passive Optical Network encapsulation port) which optical network unit the IGMP message that the user adds the multicast group request comes from, do not admit this user to add under the situation of multicast group at optical line terminal, the optical network unit that adds the multicast group request to this transmission returns failure notification message.
In order further to improve the function of optical network unit 51, described optical network unit 51 also needs to send a notification message that adds the multicast group failure to the user, so that the user handles accordingly.
The multicast admission control method of the Optical Access Network that present embodiment provides, equipment and system, because optical line terminal has returned notification message to the light network unit when not admitting this user to add multicast group, this user of notice optical network unit adds the multicast group failure, optical network unit just can exclude processing to the user who has done admission processing like this, make optical network unit in time this user to be deleted from multicast forward table, be released to this user's reserved resource, reduced the waste of resource.
Embodiment 2:
Present embodiment provides a kind of multicast admission control method of Optical Access Network, Fig. 6 is the multicast admission control system of the applied Optical Access Network of this method, in the drawings, this system does not have RACS (Resource andAdmission Control Sub-System, Resource and Admission Control Sub-system) that control is admitted in clean culture.
The multicast admission control method of the Optical Access Network that present embodiment provides is admitted control according to following steps:
A user under the ONU sends a request that adds multicast group to ONU, ONU admits control to user's adding multicast group request, and judge whether ONU admits this user to add multicast group, add multicast group if ONU refuses this user, then ONU sends the notification message that adds the multicast group failure to the user; If ONU allows this user to add under the situation of multicast group, ONU carries out admission processing after receiving this request, as: the user is added in the multicast forward table of this corresponding multicast group, and for the user distributes bandwidth resources, and reserve internal memory of data cached needs or the like.
If the data flow of this multicast group not on the ONU, ONU need send user's adding multicast group request to OLT, if OLT this moment has made the operation of refusing user's adding multicast group, be that OLT does not admit the user to add multicast group, OLT need send the notification message that adds the multicast group failure to ONU so, in the specific implementation, OLT can determine which ONU the request of described adding multicast group comes from, and so just can send to correct ONU to notification message according to GEM PORT (Gigabit Passive Optical Network encapsulation port).
ONU deletes the user after receiving the notification message of described adding multicast group failure from multicast forward table, and release has been the bandwidth resources of user's distribution and the resources such as internal memory of reservation, at last, ONU need send the notification message that adds the multicast group failure to this user.
The notification message that above-mentioned OLT sends to ONU can adopt various ways, if go up installation ANCP proxy (Access Node Control Protocol agency) at OLT (optical line terminal), and ANCP client (Access Node Control Protocol client) go up to be installed at ONU (optical network unit), can adopt the message of ANCP form to send to the notification message of ONU as OLT so.
The notification message that present embodiment OLT sends to ONU can also be the message of OMCI (Optical Network Termination Management and Control Interface agreement) form.
Carry this user of expression in the notification message in the present embodiment and add the field that multicast group is failed, shown in the table specific as follows:
The field in the lower right corner can represent that this user adds the multicast group failure in the last table, and its state can be disable, enbale or L2Controlled.
Disable state representation OLT wherein excludes this user and adds multicast group; Enable state representation OLT admits this user to add multicast group, but only limits to obtain free multicast traffic stream; L2Controlled state representation OLT admits this user to add multicast group, and can obtain the multicast traffic stream of charging.
OLT in the present embodiment is not when admitting the user to add multicast group owing to reasons such as bandwidth, return a notification message that adds the multicast group failure to ONU, make ONU the notification message that adds the multicast group failure can be sent to the user, the user just can recognize that this adds the multicast group failure like this, be convenient to the user and take appropriate measures, and can be not always under the blank screen state, do not wait for the data flow of multicast group.
Embodiment 3:
Present embodiment provides a kind of multicast admission control method of Optical Access Network, Fig. 7 is the multicast admission control system of the applied Optical Access Network of this method, in the drawings, this system is provided with RACS (Resource andAdmission Control Sub-System, Resource and Admission Control Sub-system) control is admitted in clean culture.
The multicast admission control method of the Optical Access Network that present embodiment provides is admitted control according to following steps:
A user under the ONU sends a request that adds multicast group to ONU, ONU admits control to user's adding multicast group request, and judge whether ONU admits this user to add multicast group, add multicast group if ONU refuses this user, then ONU sends the notification message that adds the multicast group failure to the user; If ONU allows this user to add multicast group, ONU carries out admission processing after receiving this request, as: the user is added in the multicast forward table of this corresponding multicast group, and for the user distributes bandwidth resources, and reserve internal memory of data cached needs or the like.
If the data flow of this multicast group not on the ONU, ONU need send user's adding multicast group request to OLT, if OLT this moment has made the operation of refusing user's adding multicast group, be that the OLT decision does not admit the user to add multicast group, OLT sends the notification message that adds the multicast group failure to ONU so, in the specific implementation, OLT can determine which ONU the request of described adding multicast group comes from according to GEM PORT (Gigabit Passive Optical Network encapsulation port), so just can send to correct ONU to the notification message that adds the multicast group failure.
As shown in Figure 7, owing to adopted RACS that control is admitted in clean culture in the present embodiment, OLT can send to RACS earlier with the notification message of described adding multicast group failure so, by RACS this notification message is sent to ONU then.
ONU deletes the user after receiving described notification message from multicast forward table, and release has been the bandwidth resources of user's distribution and the resources such as internal memory of reservation; ONU sends the notification message that adds the multicast group failure to this user.
The notification message that present embodiment OLT sends to ONU both can adopt the message of ANCP form, also can be the message of OMCI (Optical Network Termination Management and Control Interface agreement) form.
For adopting RACS clean culture to be admitted the system of control, can also with embodiment 2 in the same, the notification message that will be added multicast group failure by OLT directly sends to ONU, and the form that this notification message adopts also be with embodiment 2 in introduce identical, repeat no more herein.
Embodiment 4:
Present embodiment provides a kind of optical line terminal, and as shown in Figure 8, this optical line terminal comprises: receiver module 81, judge module 82 and sending module 83.
Wherein, receiver module 81 is used to receive the user that optical network unit sends and adds the multicast group request; Judge module 82 is used to judge whether optical line terminal admits this user to add multicast group; If optical line terminal does not admit this user to add multicast group, then sending module 83 is used for sending the notification message that this user adds the multicast group failure to optical network unit.
For not adopting RACS that the system of control is admitted in clean culture, described sending module 83 directly sends to optical network unit with notification message; For having adopted RACS clean culture to be admitted the system of control, described sending module 83 both can directly send to optical network unit with notification message, also notification message can be sent to Resource and Admission Control Sub-system earlier, by Resource and Admission Control Sub-system described notification message be sent to optical network unit again.
Present embodiment provides a kind of optical network unit, and as shown in Figure 9, this optical network unit comprises: receiver module 91, judge module 92, processing module 93 and sending module 94.
Wherein, receiver module 91 is used to receive the adding multicast group request that the user sends; Judge module 92 is used to judge whether to admit this user to add multicast group; Processing module 93 is used for when admitting this user to add multicast group this user being carried out admission processing; Sending module 94 is used for sending the user to optical line terminal when admitting this user to add multicast group and adds the multicast group request.
If excluding this user, optical line terminal adds multicast group, then can send the notification message that this user adds the multicast group failure to optical network unit, so described receiver module 91 also is used to receive the notification message that this user that optical line terminal sends adds the multicast group failure; Described processing module 93 also is used for when receiving described notification message this user being excluded processing.The processing that excludes that processing module 93 is carried out mainly comprises: this user is in time deleted from multicast forward table, and be released to this user's reserved resource simultaneously.
In order further to improve the function of optical network unit, in the described optical network unit when optical network unit excludes the user and adds multicast group, perhaps when receiving the notification message that optical line terminal returns, sending module 94 also needs to send a notification message that adds the multicast group failure to the user, so that the user handles accordingly.
In the specific implementation, optical network unit is provided with user side interface (being downstream interface), and optical network unit receives the adding multicast group request of user's transmission and sends the notification message that adds the multicast group failure to the user by user side interface by user side interface.Optical network unit is provided with network side interface (being upstream Interface) simultaneously, and optical network unit sends the user by the network side interface and adds the multicast group request to OLT, and adds the notification message of multicast group failure by the user that network side interface reception OLT sends.
The employed terminal equipment of user can be PC, set-top box, user resident device CPE, home gateway etc. in above embodiment.
The embodiment of the invention is mainly used in Optical Access Network, particularly in Optical Access Network user's multicast request is carried out multicast admission control.
Through the above description of the embodiments, the those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential common hardware, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium that can read, floppy disk as computer, hard disk or CD etc., comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by described protection range with claim.
Claims (15)
1. the multicast admission control method of an Optical Access Network is characterized in that, comprising:
The user that the reception optical network unit sends after admitting the user to add multicast group adds the multicast group request;
Judge whether to admit this user to add multicast group;
If do not admit this user to add multicast group, then send the notification message that this user adds the multicast group failure to optical network unit.
2. the multicast admission control method of Optical Access Network according to claim 1, it is characterized in that, described notification message directly sends to optical network unit, perhaps described notification message sends to Resource and Admission Control Sub-system earlier, by Resource and Admission Control Sub-system described notification message is sent to optical network unit again.
3. the multicast admission control method of Optical Access Network according to claim 1 is characterized in that, described notification message is the message of Access Node Control Protocol form, and perhaps described notification message is the message of Optical Network Termination Management and Control Interface protocol form.
4. the multicast admission control method of Optical Access Network according to claim 3 is characterized in that, carries the field that this user of expression adds the multicast group failure in the described notification message.
5. the multicast admission control method of an Optical Access Network is characterized in that, comprising:
Receive the adding multicast group request that the user sends;
Judge whether to admit this user to add multicast group;
If admit this user to add multicast group, then this user is carried out admission processing, and add the multicast group request to optical line terminal transmission user;
If this user who receives the optical line terminal transmission adds the notification message of multicast group failure, then this user is excluded processing.
6. the multicast admission control method of Optical Access Network according to claim 5 is characterized in that, if do not admit this user to add multicast group, then sends the notification message that adds the multicast group failure to this user.
7. the multicast admission control method of Optical Access Network according to claim 5 is characterized in that, described this user is excluded to handle comprise: this user is deleted from multicast forward table, and is released to this user's reserved resource.
8. the multicast admission control method of Optical Access Network according to claim 5 is characterized in that, after this user was excluded processing, this method also comprised:
Send the notification message that adds the multicast group failure to this user.
9. an optical line terminal is characterized in that, comprising:
Receiver module is used to receive the user that optical network unit sends and adds the multicast group request after admitting the user to add multicast group;
Judge module is used to judge whether to admit this user to add multicast group;
Sending module is used for when not admitting this user to add multicast group, sends the notification message that this user adds the multicast group failure to optical network unit.
10. optical line terminal according to claim 9, it is characterized in that, described sending module directly sends to optical network unit with notification message, perhaps described sending module sends to Resource and Admission Control Sub-system earlier with notification message, by Resource and Admission Control Sub-system described notification message is sent to optical network unit again.
11. an optical network unit is characterized in that, comprising:
Receiver module is used to receive the message that user or optical line terminal send;
Judge module is used for judging whether to admit this user to add multicast group when receiver module receives the adding multicast group request of user's transmission;
Processing module is used for when judge module determines to admit this user to add multicast group this user being carried out admission processing; When receiver module receives that this user that optical line terminal sends adds the notification message of multicast group failure, this user is excluded processing;
Sending module is used for sending the user to optical line terminal when admitting this user to add multicast group and adds the multicast group request.
12. optical network unit according to claim 11 is characterized in that, described processing module also is used for this user being deleted from multicast forward table, and being released to this user's reserved resource when receiving that described this user adds the notification message of multicast group failure.
13. optical network unit according to claim 11 is characterized in that, described sending module also is used for receiving described this user when adding the notification message of multicast group failure at receiver module, sends the notification message that adds the multicast group failure to this user; Perhaps described sending module also is used for when excluding this user and add multicast group, sends the notification message that adds the multicast group failure to this user.
14. the multicast admission control system of an Optical Access Network comprises optical network unit and optical line terminal; It is characterized in that:
Described optical network unit is used to receive the adding multicast group request that the user sends; And judge whether to admit this user to add multicast group; If admit this user to add multicast group, then this user is carried out admission processing, and add the multicast group request to optical line terminal transmission user; If receiving this user that optical line terminal sends adds the notification message of multicast group failure then this user is excluded processing;
Described optical line terminal is used to receive the user that optical network unit sends and adds the multicast group request; Judge whether to admit this user to add multicast group; If do not admit this user to add multicast group, then send the notification message that this user adds the multicast group failure to optical network unit.
15. the multicast admission control system of Optical Access Network according to claim 14, it is characterized in that, described optical network unit excludes to handle to this user and comprises: this user is deleted from multicast forward table, and be released to this user's reserved resource.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810167989A CN101729932A (en) | 2008-10-20 | 2008-10-20 | Multicast admission control method of optical fiber access network, apparatus and system |
| PCT/CN2009/074445 WO2010045851A1 (en) | 2008-10-20 | 2009-10-14 | Method, device and system for controlling multicast admittance in optical access network |
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| CN200810167989A CN101729932A (en) | 2008-10-20 | 2008-10-20 | Multicast admission control method of optical fiber access network, apparatus and system |
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| CN101729932A true CN101729932A (en) | 2010-06-09 |
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| CN200810167989A Pending CN101729932A (en) | 2008-10-20 | 2008-10-20 | Multicast admission control method of optical fiber access network, apparatus and system |
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| WO (1) | WO2010045851A1 (en) |
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| IL167180A (en) * | 2005-03-01 | 2011-02-28 | Eci Telecom Ltd | Method and device for providing multicast services to multiple customers |
| CN101047444B (en) * | 2006-04-28 | 2010-08-04 | 华为技术有限公司 | Method for optical network unit depart from multicast set in passive optical network system |
| CN101150425B (en) * | 2007-11-15 | 2010-10-13 | 中国电信股份有限公司 | Right control method for multicast service and Ethernet passive optical network system |
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