CN101374113A - Control method base on group index for forwarding multicast straddle - Google Patents
Control method base on group index for forwarding multicast straddle Download PDFInfo
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- CN101374113A CN101374113A CNA2008102166542A CN200810216654A CN101374113A CN 101374113 A CN101374113 A CN 101374113A CN A2008102166542 A CNA2008102166542 A CN A2008102166542A CN 200810216654 A CN200810216654 A CN 200810216654A CN 101374113 A CN101374113 A CN 101374113A
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Abstract
The invention discloses a method for controlling multicasting cross-board forwarding based on the group index. The method comprises the following steps: establishing a multicasting route between a multicasting source and a programme orderer by a multicasting module; distributing a unique group index to each multicasting routing table item by a master control board; transmitting the group indexes along with the multicasting routing table items to all the board cards in a broadcasting manner; establishing each multicasting routing table item by each the board card after receiving the multicasting routing tables; receiving and forwarding the multicasting message by a multicasting router, and adding and deleting the multicasting routing table items. By adopting the method, only one multicasting route search is needed to complete the multicasting cross-board forwarding, therefore, the speed and the efficiency of the multicasting cross-board forwarding are improved. The method is applicable in the computer network communication field.
Description
Technical field
The present invention relates to computer network communication field, relate in particular to a kind of multicast straddle transmission control method based on group index.
Background technology
In the prior art, along with the high speed development of internet, IP network becomes necessary tool in people's routine work and the life gradually, and many business have consumed the network bandwidth in a large number.The IP multicasting technology has been realized the efficient data transmission of IP network mid point to multiple spot.The IP multicasting technology can be saved bandwidth resources, reduces offered load, and therefore in video conference, every field such as online game and IPTV are widely used.
Router, switch on the backbone network mostly is tower structure greatly at present, and a framework constitutes complete router, switch by inserting integrated circuit board, links to each other by backboard between integrated circuit board.When the multicast data message straddle was transmitted, time delay was transmitted long than this plate, influenced the forward efficiency of whole router, switch.
Existing multicast straddle retransmission technique, integrated circuit board is searched multicast path by also transmitting at message inlet place, simultaneously message is sent to backboard; Other integrated circuit boards need carry out the multicast route querying after receiving multicast data message from backboard once more, transmit then.Therefore need carry out twice multicast route querying when straddle is transmitted, forward efficiency is not high.
Thereby prior art awaits to improve and improve.
Summary of the invention
The objective of the invention is to overcome the defective of existing multicast straddle retransmission technique, provide a kind of and need not carry out twice multicast route querying, the multicast message straddle transmission control method that speed is fast, efficient is high.
Technical scheme of the present invention comprises:
A kind of control method of transmitting based on the multicast straddle of group index wherein, comprising:
A, multicast module between multicast source and program request person, set up multicast path by, by master control borad each multicast routing table item is distributed a unique group index;
B, group index are issued to all integrated circuit boards with the multicast routing table item in the mode of broadcasting;
After C, each integrated circuit board are received the multicast routing table item, set up multicast routing table item separately;
D, multicast path are by the reception of carrying out multicast message and forwarding;
E, interpolation, deletion multicast routing table item.
Described method, wherein, described step C also comprises:
C1, described multicast routing table item be with the information matches multicast routing table item of multicast data message, or directly visit the multicast route table items with group index;
All set up same group multicast routing table item on C2, described each integrated circuit board, and identical group index is arranged.
Described method, wherein, described step D comprises:
D1, the integrated circuit board of receiving message need to judge whether straddle to transmit, if, then on message, add the inner heading that uses, message is sent to backboard;
D2, integrated circuit board are received multicast message from backboard, and the multicast routing table Xiang Bingzuo that directly visits this plate according to the group index information of built-in message head transmits operation.
Described method wherein, comprises group index information in the added heading among the described step D1.
Described method, wherein, described step D1 is further comprising the steps of:
D11, the described integrated circuit board of receiving message judge receive multicast message be from the external interface of this plate or from this plate with the internal interface between the backboard; If from the external interface of this plate execution in step D12 then, if from this plate with the execution in step D13 then of the internal interface between the backboard;
D12, according to the multicast routing table item of this plate of information matches of multicast data message and transmit, need to judge whether straddle to transmit simultaneously, if the corresponding group index that then will find is added on the COM Continuation of Message head, and message is sent to backboard; Otherwise do not send;
D13, directly visit the corresponding multicast routing table item of this plate according to the group index of COM Continuation of Message headband, and additional header is removed the back transmit.
Described method, wherein, described step e also comprises the process steps of adding the multicast routing table item:
E11, multicast module receive that the user adds certain group, and master control borad is set up the corresponding multicast routing table item of this group, and for it distributes the unique group index of the overall situation, and this multicast routing table item is sent on all integrated circuit boards;
E12, every integrated circuit board are received the multicast routing table item that master control borad sends, and create the multicast routing table item according to group index and its multicast information on this plate.
Described method, wherein, described step e also comprises the process steps of deletion multicast routing table item:
When E21, multicast module found that certain group does not have the user, master control borad was deleted the corresponding multicast routing table item of this group, and the multicast routing table item of notifying all integrated circuit boards to delete this index correspondence simultaneously reclaims group index;
E22, integrated circuit board are received the notice of the deletion clauses and subclauses of master control, according to the corresponding multicast routing table item of index deletion.
Multicast straddle transmission control method based on index provided by the present invention, since the multicast module between multicast source and program request person, set up multicast path by, master control borad is distributed to the unique group index of each multicast routing table item one, and each integrated circuit board is set up multicast routing table item separately; When straddle is transmitted, only a multicast route querying be need carry out, speed and efficient that the multicast message straddle is transmitted improved.
Description of drawings
Fig. 1 the present invention is based on transmitting multicast data process chart on the single integrated circuit board of multicast straddle transmission control method of group index;
Fig. 2 is the interpolation multicast routing table item flow chart that the present invention is based on the multicast straddle transmission control method of group index;
Fig. 3 is the deletion multicast routing table item flow chart that the present invention is based on the multicast straddle transmission control method of group index.
Embodiment
Below in conjunction with accompanying drawing embodiment, the multicast straddle transmission control method that the present invention is based on group index is described.
The control method that a kind of multicast straddle based on group index of the present invention is transmitted, comprise foundation based on the multicast path of group index by step as follows:
The multicast module between multicast source and program request person, set up multicast path by, by master control borad each multicast routing table item is distributed a unique group index;
Group index is issued to all integrated circuit boards with the multicast routing table item in the mode of broadcasting;
After each integrated circuit board is received the multicast routing table item, set up multicast routing table item separately.Guarantee directly to visit with index, identical like this multicast routing table item all has identical index on integrated circuit board.
After setting up, the multicast routing table item to carry out the reception and the forwarding of multicast message; The integrated circuit board of receiving message need to judge whether straddle to transmit except transmitting at this card in addition, if, then on message, add the inner heading that uses, message is sent to backboard.Comprise group index information in the heading that adds.
Integrated circuit board is received multicast message from backboard, then directly visits the multicast routing table Xiang Bingzuo forwarding operation of this plate according to the group index information of built-in message head, and like this, straddle is transmitted only needs a route querying to finish.
Based on transmitting multicast data handling process on the single integrated circuit board of the multicast straddle transmission control method of group index as shown in Figure 1, its step comprises:
S101, integrated circuit board are received multi-cast message data.
S102, judge receive multicast message be from the external interface of this plate or from this plate with the internal interface between the backboard.
If the multicast data message that S103 receives from this plate external interface is then according to the multicast routing table item of this plate of information matches of multicast data message and transmit.
S104, need to judge whether straddle to transmit, if change S105.
S105, the corresponding group index that then will find are added on the COM Continuation of Message head, and message is sent to backboard; Otherwise do not send.
If the multicast data message that S106 receives with the internal interface between the backboard from this plate is then directly visited the corresponding multicast routing table item of this plate, and additional header is removed the back transmit according to the group index of COM Continuation of Message headband.
Multicast path need be repaired according to ruuning situation by after setting up and moving, and in time adds or deletion multicast routing table item.
Based on the interpolation multicast routing table item method flow of the multicast straddle transmission control method of group index as shown in Figure 2, its step comprises:
S201, multicast module receive that the user adds certain group,
The S202 master control borad is set up the corresponding multicast routing table item of this group, and for it distributes the unique group index of the overall situation,
S203, master control borad send to this multicast routing table item on all integrated circuit boards.
S204, every integrated circuit board are received the multicast routing table item that master control borad sends, on this plate, create the multicast routing table item according to group index and other multicast informations, guarantee both can also can directly visit the multicast route table items with the information matches multicast routing table item of multicast data message with group index.
Through above-mentioned steps, all set up same group multicast routing table item on each integrated circuit board, and identical group index has been arranged.
Based on the deletion multicast routing table item method flow of the multicast straddle transmission control method of group index as shown in Figure 3, its step comprises:
S301, multicast module find that certain last user of group leaves, and this group has not had the user.
S302, master control borad are deleted the corresponding multicast routing table item of this group and are reclaimed group index, the multicast routing table item of notifying all integrated circuit boards to delete this group index correspondence simultaneously.
S303, integrated circuit board are received the notice of the deletion clauses and subclauses of master control, according to the corresponding multicast routing table item of index deletion.
By transmitting multicast data handling process on the single integrated circuit board in the above various embodiments of the present invention, add multicast routing table item flow process and deletion multicast routing table item flow process, than detailed complete the method step of the multicast straddle transmission control method that the present invention is based on group index described.
Should be understood that above-mentioned description at specific embodiment is comparatively detailed, can not therefore think the restriction to scope of patent protection of the present invention, scope of patent protection of the present invention should be as the criterion with claims.
Claims (7)
1. a control method of transmitting based on the multicast straddle of group index is characterized in that, comprising:
A, multicast module between multicast source and program request person, set up multicast path by, by master control borad each multicast routing table item is distributed a unique group index;
B, group index are issued to all integrated circuit boards with the multicast routing table item in the mode of broadcasting;
After C, each integrated circuit board are received the multicast routing table item, set up multicast routing table item separately;
D, multicast path are by the reception of carrying out multicast message and forwarding;
E, interpolation, deletion multicast routing table item.
2. the method for claim 1 is characterized in that, described step C also comprises:
C1, described multicast routing table item be with the information matches multicast routing table item of multicast data message, or directly visit the multicast route table items with group index;
All set up same group multicast routing table item on C2, described each integrated circuit board, and identical group index is arranged.
3. the method for claim 1 is characterized in that, described step D comprises:
D1, the integrated circuit board of receiving message need to judge whether straddle to transmit, if, then on message, add the inner heading that uses, message is sent to backboard;
D2, integrated circuit board are received multicast message from backboard, and the multicast routing table Xiang Bingzuo that directly visits this plate according to the group index information of built-in message head transmits operation.
4. method as claimed in claim 3 is characterized in that, comprises group index information among the described step D1 in the added heading.
5. method as claimed in claim 3 is characterized in that, described step D1 is further comprising the steps of:
D11, the described integrated circuit board of receiving message judge receive multicast message be from the external interface of this plate or from this plate with the internal interface between the backboard; If from the external interface of this plate execution in step D12 then, if from this plate with the execution in step D13 then of the internal interface between the backboard;
D12, according to the multicast routing table item of this plate of information matches of multicast data message and transmit, need to judge whether straddle to transmit simultaneously, if the corresponding group index that then will find is added on the COM Continuation of Message head, and message is sent to backboard; Otherwise do not send;
D13, directly visit the corresponding multicast routing table item of this plate according to the group index of COM Continuation of Message headband, and additional header is removed the back transmit.
6. the method for claim 1 is characterized in that, described step e also comprises the process steps of adding the multicast routing table item:
E11, multicast module receive that the user adds certain group, and master control borad is set up the corresponding multicast routing table item of this group, and for it distributes the unique group index of the overall situation, and this multicast routing table item is sent on all integrated circuit boards;
E12, every integrated circuit board are received the multicast routing table item that master control borad sends, and create the multicast routing table item according to group index and its multicast information on this plate.
7. the method for claim 1 is characterized in that, described step e also comprises the process steps of deletion multicast routing table item:
When E21, multicast module found that certain group does not have the user, master control borad was deleted the corresponding multicast routing table item of this group, and the multicast routing table item of notifying all integrated circuit boards to delete this index correspondence simultaneously reclaims group index;
E22, integrated circuit board are received the notice of the deletion clauses and subclauses of master control, according to the corresponding multicast routing table item of index deletion.
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| CNA2008102166542A CN101374113A (en) | 2008-10-07 | 2008-10-07 | Control method base on group index for forwarding multicast straddle |
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Cited By (10)
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|---|---|---|---|---|
| CN102123096A (en) * | 2011-03-11 | 2011-07-13 | 北京星网锐捷网络技术有限公司 | Method and device for releasing decapsulation entry hardware entry resource, equipment and system |
| CN102724201A (en) * | 2012-06-25 | 2012-10-10 | 北京像素软件科技股份有限公司 | Online game system and data multicast method for online game system |
| CN103338152A (en) * | 2013-05-24 | 2013-10-02 | 杭州华三通信技术有限公司 | Multicast message forwarding method and main control board |
| CN104811400A (en) * | 2014-01-26 | 2015-07-29 | 杭州迪普科技有限公司 | Distributed network apparatus |
| WO2015117408A1 (en) * | 2014-08-18 | 2015-08-13 | 中兴通讯股份有限公司 | Routing load sharing method and apparatus |
| WO2016082614A1 (en) * | 2014-11-27 | 2016-06-02 | 中兴通讯股份有限公司 | Method and device for processing multicast route table entry, and computer storage medium |
| CN106470171A (en) * | 2016-09-18 | 2017-03-01 | 杭州迪普科技股份有限公司 | The delivery method of multicast forwarding list item and device |
| CN107947950A (en) * | 2017-11-22 | 2018-04-20 | 新华三技术有限公司 | The delivery method and NP cable card boards of a kind of hardware multicast outgoing interface list item |
| CN108768866A (en) * | 2018-09-06 | 2018-11-06 | 迈普通信技术股份有限公司 | Across the card retransmission method of multicast message, device, the network equipment and readable storage medium storing program for executing |
| CN113824720A (en) * | 2021-09-18 | 2021-12-21 | 恒安嘉新（北京）科技股份公司 | Message processing method, device, equipment and storage medium |
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- 2008-10-07 CN CNA2008102166542A patent/CN101374113A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102123096B (en) * | 2011-03-11 | 2012-10-10 | 北京星网锐捷网络技术有限公司 | Method and device for releasing decapsulation entry hardware entry resource, equipment and system |
| CN102123096A (en) * | 2011-03-11 | 2011-07-13 | 北京星网锐捷网络技术有限公司 | Method and device for releasing decapsulation entry hardware entry resource, equipment and system |
| CN102724201A (en) * | 2012-06-25 | 2012-10-10 | 北京像素软件科技股份有限公司 | Online game system and data multicast method for online game system |
| CN103338152B (en) * | 2013-05-24 | 2017-12-08 | 新华三技术有限公司 | A kind of method for forwarding multicast message and master control borad |
| CN103338152A (en) * | 2013-05-24 | 2013-10-02 | 杭州华三通信技术有限公司 | Multicast message forwarding method and main control board |
| CN104811400B (en) * | 2014-01-26 | 2018-04-06 | 杭州迪普科技股份有限公司 | A kind of distributed network equipment |
| CN104811400A (en) * | 2014-01-26 | 2015-07-29 | 杭州迪普科技有限公司 | Distributed network apparatus |
| WO2015117408A1 (en) * | 2014-08-18 | 2015-08-13 | 中兴通讯股份有限公司 | Routing load sharing method and apparatus |
| WO2016082614A1 (en) * | 2014-11-27 | 2016-06-02 | 中兴通讯股份有限公司 | Method and device for processing multicast route table entry, and computer storage medium |
| CN106470171A (en) * | 2016-09-18 | 2017-03-01 | 杭州迪普科技股份有限公司 | The delivery method of multicast forwarding list item and device |
| CN107947950A (en) * | 2017-11-22 | 2018-04-20 | 新华三技术有限公司 | The delivery method and NP cable card boards of a kind of hardware multicast outgoing interface list item |
| CN107947950B (en) * | 2017-11-22 | 2020-09-08 | 新华三技术有限公司 | Hardware multicast output interface table item issuing method and NP (network processor) line card board |
| CN108768866A (en) * | 2018-09-06 | 2018-11-06 | 迈普通信技术股份有限公司 | Across the card retransmission method of multicast message, device, the network equipment and readable storage medium storing program for executing |
| CN108768866B (en) * | 2018-09-06 | 2021-08-03 | 迈普通信技术股份有限公司 | Cross-card forwarding method and device for multicast message, network equipment and readable storage medium |
| CN113824720A (en) * | 2021-09-18 | 2021-12-21 | 恒安嘉新（北京）科技股份公司 | Message processing method, device, equipment and storage medium |
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