CN101321077A - Reliable multicast method, provider edge upper layer device and system - Google Patents
Reliable multicast method, provider edge upper layer device and system Download PDFInfo
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- CN101321077A CN101321077A CNA2008100295731A CN200810029573A CN101321077A CN 101321077 A CN101321077 A CN 101321077A CN A2008100295731 A CNA2008100295731 A CN A2008100295731A CN 200810029573 A CN200810029573 A CN 200810029573A CN 101321077 A CN101321077 A CN 101321077A
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- H04L45/00—Routing or path finding of packets in data switching networks
Abstract
The embodiment of the invention discloses a method of reliable multicast, comprising the steps of: establishing a multicast path between each operator border upper layer apparatus and at least one operator border lower layer apparatus in accordance with a multicast interception protocol; primarily and secondarily configuring all the operator border upper layer apparatuses which establish the multicast path with the same operator border lower layer apparatuses, judging whether the principal operator border upper layer apparatuses work normally; if so, transmitting the multicast data to the operator border lower layer apparatuses; and if not, transmitting the multicast data to the operator border lower layer apparatuses by the multicast path established between one of the backup operator border upper layer apparatuses and the operator border lower layer apparatus. In the meantime, the embodiment of the invention also discloses an operator border upper layer apparatus and system. By applying the embodiment of the invention, the issue about lack of backup protection for the multicast path between SPE and UPE in the current HVPLS network can be solved and it is positive for improving the reliability of multicast services in the HVPLS network.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of method of reliable multicast, provider edge upper layer device and system.
Background technology
Along with to based on Virtual Private Network (VPLS, Virtual Private LAN Service) growth of requirement, the full interface channel between the provider edge equipment (PE, Provider Edge) is also needed significantly to increase.For satisfying the demand, the VPLS standard allows to utilize a kind of layout of hub-spoke to set up hierarchy---classification Virtual Private Network (HVPLS, Hierarchical Virtual Private LAN Service).
Referring to Fig. 1, be the structural representation of existing classification Virtual Private Network;
In the basic model of HVPLS, can be divided into two kinds to PE:
Provider Edge lower floor equipment 11 (UPE, Underlayer Provider Edge): be used for basic VPLS fully-connected network 10 wherein-platform PE connects.UPE11 supports route and MPLS encapsulation, promptly directly connects customer edge 12 (CE, Consumer Edge).If a UPE connects many CE12, and possesses basic bridging functionality, Frame is only transmitted and need be carried out at UPE so, has alleviated the burden of provider edge upper layer device 13 like this.
Provider edge upper layer device 13 (SPE, Superstratum Provider Edge): be used to the inside that links UPE11 and be positioned at basic VPLS fully-connected network 10, SPE13 connects with other equipment of basic VPLS fully-connected network 10 inside.
VPLS has obtained application more and more widely at present.But traditional VPLS network in the face of-during to many situation, adopt broadcast mode usually, so not only wasted a large amount of network bandwidths, cause broadcast storm, and influenced normal business.Multicasting technology arises at the historic moment for this type of problem of solution just.
Multicast management protocol is intercepted (IGMP Snooping, Internet Group Management ProtocolSnooping) technology is meant the Internet Group Management Protocol (IGMP by sending between listen routers and the main frame, Internet Group Management Protocol) message is set up the two-layer retransmitting table of multicast data message, thereby the forwarding of management and control multicast data message realizes Layer 2 Multicast.If router off-duty IGMP is Snooping, when it receives multicast data message, owing to do not know there is the recipient under which port, therefore it is with broadcast mode VLAN (VLAN under message, Virtual LocalArea Network) send this multicast data message in, multicast member and non-multicast member in this VLAN can both be received multicast data message; If router has moved IGMP Snooping, by intercepting the IGMP message that sends between multicast router and the main frame, just can know the recipient that multicast packet is arranged under which port, then multicast data message will be at L 2 broadcast, but carry out Layer 2 Multicast, promptly have only multicast member can receive multicast data message.
Along with the expansion day by day of Network and the progressively raising of people's living standard; stability of network and robustness are increasingly important; miscellaneous service such as many label forwarding (MPLS; Multi-Protocol Label Switching); VPN (virtual private network) (VPN; Virtual Private Network) special line etc. has all had the safeguard measure of oneself to guarantee that business do not interrupt, protection user's final rights and interests.
The inventor finds that there is following shortcoming in prior art in implementing process of the present invention:
Because existing IGMP Snooping only supports the full VPLS networking that connects of PE; do not support multicast link is protected; so multicast packet at SPE in the process that UPE sends; if SPE breaks down or propagation path interrupts; because do not have corresponding stand-by equipment and path, will cause the delay even the loss of data of this multicast packet.
Summary of the invention
The embodiment of the invention provides a kind of method, provider edge upper layer device and system of reliable multicast; can solve the problem that the multicast link between the SPE and UPE in the present HVPLS network lacks backup protection, help improving the reliability of multicast service in the HVPLS network.
For solving the problems of the technologies described above, the embodiment of the invention provides a kind of method of reliable multicast, be applied to comprise in the network of at least one Provider Edge lower floor equipment and at least two provider edge upper layer devices, each described provider edge upper layer device links to each other with described at least one Provider Edge lower floor equipment, and this method comprises:
According to the multicast listener agreement, set up independently multicast path between each described provider edge upper layer device and described at least one the Provider Edge lower floor equipment;
All described provider edge upper layer devices of setting up multicast path with same described Provider Edge lower floor equipment are carried out active and standby configuration, wherein, use provider edge upper layer device except that a provider edge upper layer device is configured to the master, all the other provider edge upper layer devices all are configured to standby provider edge upper layer device;
Judge main whether normal with provider edge upper layer device work;
When main with provider edge upper layer device when working properly, by the described main multicast path of setting up with provider edge upper layer device and Provider Edge lower floor equipment with transmitting multicast data to described Provider Edge lower floor equipment;
When described main during with the provider edge upper layer device operation irregularity, the multicast path of setting up by standby provider edge upper layer device in the described standby provider edge upper layer device and described Provider Edge lower floor equipment with transmitting multicast data to described Provider Edge lower floor equipment.
Correspondingly, the embodiment of the invention also provides a kind of provider edge upper layer device of multicast network, comprising:
The route maintenance module is used for according to the multicast listener agreement, the multicast path between foundation and maintenance and the Provider Edge lower floor equipment;
Active and standby configuration module is used for described provider edge upper layer device is carried out active and standby configuration;
Data processing module is used for when described active and standby configuration module is configured to host apparatus with described provider edge upper layer device, and the multicast packet that receives is sent to described Provider Edge lower floor equipment; When described active and standby configuration module is configured to stand-by equipment with described provider edge upper layer device, abandon described multicast packet.
Correspondingly, the embodiment of the invention provides a kind of network system of reliable multicast, comprise at least one Provider Edge lower floor equipment and at least two provider edge upper layer devices that are connected with described Provider Edge lower floor equipment respectively, described at least two provider edge upper layer devices comprise a main provider edge upper layer device and at least one the standby provider edge upper layer device used, each described provider edge upper layer device be used for and described at least one Provider Edge lower floor equipment between set up independently multicast path according to the multicast listener agreement, described master is used for when working properly with provider edge upper layer device, the multicast path of setting up by self and described Provider Edge lower floor equipment is given described Provider Edge lower floor equipment with the transmitting multicast data that receives, described standby provider edge upper layer device is used for described main during with the provider edge upper layer device operation irregularity, the multicast path of setting up by self and described Provider Edge lower floor equipment with described transmitting multicast data to described Provider Edge lower floor equipment.
Implement the embodiment of the invention, have following beneficial effect:
Many SPE can set up multicast path with same UPE, and many SPE that connect same UPE carry out active and standby configuration, make between many SPE stand-by equipment each other, set up the standby multicast path that connects UPE simultaneously, when the master uses the SPE device fails, can be by the standby multicast path multicast data transmission of setting up between spare spes and the UPE, thus the reliability of multicast service improved.
Description of drawings
Fig. 1 is the structural representation of existing classification Virtual Private Network;
Fig. 2 is the schematic flow sheet of first embodiment of reliable multicast method provided by the invention;
Fig. 3 is the schematic flow sheet of second embodiment of reliable multicast method provided by the invention;
Fig. 4 is the structural representation of the provider edge upper layer device that provides of the embodiment of the invention;
Fig. 5 is the structural representation of first embodiment of reliable multicast provided by the invention system;
Fig. 6 is the structural representation of second embodiment of reliable multicast provided by the invention system.
Embodiment
Below in conjunction with accompanying drawing to the embodiment of the invention do further in detail, clearly explanation.
Referring to Fig. 2, be the schematic flow sheet of first embodiment of reliable multicast method provided by the invention.The method of the reliable multicast that the embodiment of the invention provides, this method is applied to comprise in the network of at least one Provider Edge lower floor equipment and at least two provider edge upper layer devices, each described provider edge upper layer device links to each other with described at least one Provider Edge lower floor equipment, and this method comprises:
100, according to the multicast listener agreement, set up independently multicast path between each described provider edge upper layer device and described at least one the Provider Edge lower floor equipment; Particularly, by provider edge upper layer device operation multicast listener agreement, which Provider Edge lower floor equipment knows has can receiving multicast business, thus set up and Provider Edge lower floor equipment between independently multicast path;
101, all described provider edge upper layer devices of setting up multicast path with same described Provider Edge lower floor equipment are carried out active and standby configuration; Wherein, use provider edge upper layer device except that a provider edge upper layer device is configured to the master, all the other provider edge upper layer devices all are configured to standby provider edge upper layer device;
102, judge main whether normal with provider edge upper layer device work; When being, then carry out 103 as judged result, as not the time, then carry out 104;
103, by the described main multicast path of setting up with provider edge upper layer device and Provider Edge lower floor equipment with transmitting multicast data to described Provider Edge lower floor equipment;
104, the multicast path of setting up by standby provider edge upper layer device in the described standby provider edge upper layer device and described Provider Edge lower floor equipment is given described Provider Edge lower floor equipment with transmitting multicast data.
The method of the reliable multicast that the embodiment of the invention provides; by the multicast listener agreement; set up the standby multicast path between provider edge upper layer device and the Provider Edge lower floor equipment, realize protection, improve the reliability of multicast service provider edge upper layer device.
Referring to Fig. 3, the schematic flow sheet of second embodiment of the reliable multicast method that provides for the present invention is real.This method is applied to comprise that in the network of at least one UPE and at least two SPE, each SPE links to each other with this UPE, and this method comprises:
200, each SPE broadcast query message, inquiring about its which UPE that connects down can receiving multicast business.
201, UPE receives the query message of each SPE broadcasting, and replys response message according to described query message.Particularly, UPE is according to the described query message of receiving, record sends the SPE transmit port of described query message; And pass through described SPE transmit port transmission response message to corresponding SPE.
Need to prove that if UPE receives many query messages, then record sends each SPE transmit port of described query message; And described many SPE transmit ports have identical priority to described UPE; UPE replys response message to corresponding SPE one by one by the SPE transmit port of correspondence.
202, set up multicast path between the UPE of the SPE that receives response message and corresponding transmission response message.Multicast path between the SPE record of receiving described response message and the UPE of this response message of transmission.
Need to prove, receive many SPE of described UPE response message, equal multicast paths between record and this UPE, and the multicast path between described each SPE and the UPE is separate.
203, all SPE that set up multicast path with same UPE are carried out active and standby configuration.Particularly, in embodiments of the present invention can be according to VRRP, the SPE that sets up multicast path with same UPE is carried out active and standby configuration, wherein, SPE is configured to mainly use SPE, and all the other SPE all are configured to spare spes.
204, judge main whether normal with SPE work; If be judged as is then to enter 206; If be judged as not, then go to 205;
205, when 204 judged the master with the SPE job failure, SPE carried out active and standby switching according to VRRP, switches to spare spes, and spare spes is taken over the master and worked with SPE.
206, give described UPE with the multicast path of setting up between SPE and UPE with transmitting multicast data by described master.Particularly, SPE judges that self is main use SPE or spare spes for the UPE that receives this multicast packet after receiving the multicast packet that needs to transmit;
If judge from the main SPE that uses as described UPE, then the multicast path by setting up between self and described UPE is sent to described UPE with multicast packet; If judge from spare spes, then abandon described multicast packet as described UPE.
207, UPE receives the multicast packet that is sent by SPE.Need to prove that UPE does not distinguish main spare spes, as long as the data that have the SPE transmit port of record to be sent in step 201, UPE all normally receives.
The method of the reliable multicast that the embodiment of the invention provides realizes the backup of the multicast path between provider edge upper layer device and the Provider Edge lower floor equipment by the multicast listener agreement; Realize protection simultaneously to provider edge upper layer device; And can not increase the data redundancy that Provider Edge lower floor equipment receives, effectively improve the reliability of multicast network.
The flow process of reliable multicast method the 3rd embodiment provided by the invention illustrates the applicable cases of reliable multicast method in the system of reliable multicast that third embodiment of the invention provides below in conjunction with Fig. 7:
At the initial establishment stage of network, SPE601, SPE602, SPE603 constitute the full VPLS that connects, and are the multicast path between foundation and UPE608, the UPE609, and SPE601, SPE602, SPE603 be the broadcast query message respectively.
After UPE608, UPE609 received the query message that SPE602, SPE603 broadcast, record sent the SPE602 of described query message, the transmit port of SPE603, and replied response message by this transmit port to SPE602, SPE603.
SPE602, SPE603 are behind the response message of receiving UPE608, UPE609, according to this message accounting multicast path; Need to prove, because SPE602, SPE603 all can receive the response message that UPE608, UPE609 reply, so SPE602, SPE603 can set up multicast path with UPE608 and UPE609 simultaneously.
After SPE602, SPE603 and UPE608 have set up multicast path, SPE602, SPE603 are carried out active and standby configuration according to VRRP; Suppose SPE602 be UPE608 main to use SPE, SPE603 be the spare spes of UPE608, then the multicast path between SPE602 and the UPE608 then is a primary path 604; Multicast path between SPE603 and the UPE608 then is a backup path 606.
After SPE602, SPE603 and UPE609 have set up multicast path, SPE602, SPE603 carry out active and standby configuration according to VRRP once more for UPE609, suppose that SPE603 is the main SPE that uses of UPE609, SPE602 is the spare spes of UPE608, and then the multicast path between SPE603 and the UPE609 then is a primary path 605; Multicast path between SPE602 and the UPE609 then is a backup path 607.
Need to prove, this example is intended to illustrate that the active and standby configuration relation between the SPE is at a certain UPE, a SPE can belong to the profile instance of many UPE simultaneously, and as the master of a certain UPE during, do not influence master that described SPE becomes other UPE with SPE or spare spes with SPE or spare spes; This example only is a kind of concrete annexation of the present invention, can not limit the present invention with this.Through said process, UPE608 has had two multicast paths that are connected with SPE with UPE609, has also realized mutual backup between SPE602 and the SPE603.
When multicast source 600 need send to CE610 by UPE608 with one group of multicast packet, SPE601, SPE602, SPE603 receive the multicast packet that multicast source 600 sends, under the situation of SPE602 operate as normal, because SPE603 is the spare spes of UPE608, also select to abandon described multicast packet, do not have multicast packet to propagate on the backup path 606; Have only SPE602 to pass through primary path 604 and transmit described multicast packet, after UPE608 receives described multicast packet, transmit to CE610 again to UPE608.
One group of multicast packet need be sent to CE611 by UPE609 at multicast source 600, and during the SPE603 fault: SPE601, SPE602, SPE603 receive the multicast packet that multicast source 600 sends, can not be by under the situation of primary path 605 normal multicast data forwardings at SPE603 because of fault, because SPE602 is the spare spes of UPE609, SPE602 will take over the main SPE that uses that SPE603 becomes UPE609 this moment, SPE602 will be by backup path 607 to the UPE609 multicast data forwarding, after UPE609 receives described multicast packet, transmit to CE611 again.
The method of the reliable multicast that the embodiment of the invention provides, by the mutual backup between the SPE, and the foundation of backup path, guarantee that UPE still receives multicast packet under leading with the situation of SPE fault, improve the reliability and the fail safe of multicast network.
Referring to Fig. 4, the structural representation of the provider edge upper layer device that provides for the embodiment of the invention.
This provider edge upper layer device specifically comprises:
Active and standby configuration module 31 is used for self place equipment is carried out active and standby configuration;
Wherein, route maintenance module 30 specifically comprises:
Packet sending and receiving unit 300 is used for the broadcast query message and receives the response message that UPE replys described query message;
Active and standby configuration module 31 specifically comprises:
Active and standby dispensing unit 310 is used for according to VRRP described equipment being carried out active and standby configuration.
Need to prove that every SPE can set up multicast path with many UPE, just at their common UPE that connects, for other UPE, described active and standby configuration does not come into force the main and standby relation between described many SPE that carry out active and standby configuration according to VRRP; For example: SPE1 is as the main SPE that uses of UPE1, and SPE2 is as the spare spes of described UPE1, and is only effective to UPE1; For UPE2, SPE2 is that the main of described UPE2 used SPE, and SPE1 is the spare spes of described UPE2; Only be a kind of concrete condition of the present invention below, when being intended to illustrate SPE with respect to certain UPE, no matter described SPE as the master of described UPE with SPE or spare spes, can not influence described SPE as the master of other UPE with SPE or spare spes;
Active and standby switch unit 311, be used to detect described SPE operating state, if active and standby switch unit 311 detects described SPE job failure, and this SPE is configured to the main SPE that uses by described active and standby dispensing unit 310,311 couples of described SPE of then active and standby switch unit carry out active and standby switching, should lead and switch to spare spes with SPE.
The provider edge upper layer device that the embodiment of the invention provides is connected with same UPE by many above-mentioned SPE, sets up the backup path of SPE and UPE, improves the fail safe and the reliability of multicast.
Referring to Fig. 5, be the structural representation of first embodiment of reliable multicast provided by the invention system.
As shown in Figure 5, the reliable multicast system that the embodiment of the invention provides comprises at least one equipment (UPE) 52 of Provider Edge lower floor and at least two provider edge upper layer devices (SPE) 50 that are connected with Provider Edge lower floor equipment 52 respectively, 51, described at least two SPE comprise a main SPE50 of using and at least one spare spes 51, each SPE50,51 be used for and at least one UPE52 between set up independently multicast path according to the multicast listener agreement, the master is used for when working properly with SPE50, give the UPE52 of institute by the multicast path that self and UPE52 set up with the transmitting multicast data that receives, spare spes 51 is used for main during with the SPE50 operation irregularity, by the multicast path self set up with UPE52 with this transmitting multicast data to UPE52.Wherein, each SPE50,51 further comprises:
The route maintenance module is used for according to the multicast listener agreement, the multicast path between foundation and maintenance and the Provider Edge lower floor equipment 52;
Active and standby configuration module is used for self place SPE is carried out active and standby configuration;
Data processing module is used for when active and standby configuration module is configured to host apparatus with self place SPE the multicast packet that receives being sent to UPE52; When active and standby configuration module is configured to stand-by equipment with self place SPE, abandon this multicast packet.
SPE50,51 carries out active and standby configuration according to VRRP, and the multicast path between independent maintenance self and the UPE52;
Main during with the SPE50 fault, spare spes 51 by the multicast path between self and the UPE52, continues to send multicast packet according to VRRP;
UPE52 writes down all main transmit ports with SPE50 and spare spes 51; After the active and standby switching of provider edge upper layer device, continue from spare spes 51 transmit port receiving multicast datas.
The reliable multicast system that the embodiment of the invention provides, when the master used the SPE fault, spare spes can be taken over main with SPE work, continues to UPE transmission multicast packet, the normal forwarding of assurance multicast packet.
Referring to Fig. 6, be the structural representation of second embodiment of reliable multicast provided by the invention system.
Provider edge upper layer device 601 (SPE601), provider edge upper layer device 602 (SPE602), provider edge upper layer device 603 (SPE603) are at the initial establishment stage of network, constitute the full VPLS that connects, and broadcast query message respectively, with set up and Provider Edge lower floor equipment 608 (UPE608), Provider Edge lower floor equipment 609 (UPE609) between multicast path.
After UPE608, UPE609 receive the query message that SPE602 broadcasts, reply response message to SPE602 respectively by the transmit port of SPE602 according to the reverse path of described query message; In like manner, after UPE608, UPE609 receive the query message that SPE603 broadcasts, reply response message to SPE603 respectively by the transmit port of SPE603 according to the reverse path of described query message.
SPE602, SPE603 set up and the record multicast path according to UPE608, the UPE609 response message received; Need to prove, because SPE602, SPE603 all can receive the response message that UPE608, UPE609 reply, so SPE602, SPE603 can set up multicast path with UPE608 and UPE609 simultaneously.
After SPE602, SPE603 and UPE608 have finished the foundation of multicast path, carry out active and standby configuration according to VRRP; Suppose SPE602 be UPE608 main to use SPE, SPE603 be the spare spes of UPE608, then the multicast path between SPE602 and the UPE608 then is a primary path 604; Multicast path between SPE603 and the UPE608 then is a backup path 606.
After SPE602, SPE603 and UPE609 have set up multicast path, SPE602, SPE603 carry out active and standby configuration according to VRRP once more for UPE609, suppose that SPE603 is the main SPE that uses of UPE609, SPE602 is the spare spes of UPE608, and then the multicast path between SPE603 and the UPE609 then is a primary path 605; Multicast path between SPE602 and the UPE609 then is a backup path 607.
Need to prove, this example is intended to illustrate that the active and standby configuration relation between the SPE is at a certain UPE, a SPE can belong to the profile instance of many UPE simultaneously, and as the master of a certain UPE during, do not influence master that described SPE becomes other UPE with SPE or spare spes with SPE or spare spes; This example only is a kind of concrete annexation of the present invention, can not limit the present invention with this.Through said process, UPE608 has had two multicast paths that are connected with SPE with UPE609, has also realized mutual backup between SPE602 and the SPE603.
After SPE601, SPE602, SPE603 receive that multicast source 600 sends to the multicast packet of CE610, under the situation of SPE602 operate as normal, because SPE603 is the spare spes of UPE608, also select to abandon described multicast packet, there is not multicast packet to propagate on the backup path 606; Have only SPE602 to pass through primary path 604 and transmit described multicast packet, after UPE608 receives described multicast packet, transmit to CE610 again to UPE608.
When the multicast packet that will send to CE611 when multicast source 600 is handed down to SPE601, SPE602, SPE603, and SPE603 breaks down, can not be by under the situation of primary path 605 normal multicast data forwardings at SPE603 because of fault, because SPE602 is the spare spes of UPE609, SPE602 will take over the main SPE that uses that SPE603 becomes UPE609 this moment, SPE602 will after UPE609 receives described multicast packet, transmit to CE611 by backup path 607 to the UPE609 multicast data forwarding again.
The method of the reliable multicast that the embodiment of the invention provides, by the mutual backup between the SPE, and the foundation of backup path, guarantee that UPE still receives multicast packet under leading with the situation of SPE fault, improve the reliability and the fail safe of multicast network.
Of particular note; in the embodiment of the invention; but combined with virtual private network flow control technique (VPLS over TE); multicast path between SPE and the UPE is based upon on the tunnel (Tunnel), utilizes protecting tunnel technology (Tunnel Protect) further multicast path to be protected.
The embodiment of the invention is set up the backup multicast path between SPE and the UPE by the multicast message between SPE and the UPE; By the active and standby configuration between the SPE, realize the mutual backup between the SPE, improve the reliability of multicast network.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential hardware platform, can certainly all implement by hardware.Based on such understanding, all or part of can the embodying that technical scheme of the present invention contributes to background technology with the form of software product, this computer software product can be stored in the storage medium, as ROM/RAM, magnetic disc, CD etc., comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of some part of each embodiment of the present invention or embodiment.
Above disclosed is several preferred embodiments of the present invention only, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of doing according to claim of the present invention still belongs to the scope that the present invention is contained.
Claims (11)
1, a kind of method of reliable multicast, be applied to comprise in the network of at least one Provider Edge lower floor equipment and at least two provider edge upper layer devices, each described provider edge upper layer device links to each other with described at least one Provider Edge lower floor equipment, it is characterized in that this method comprises:
According to the multicast listener agreement, set up independently multicast path between each described provider edge upper layer device and described at least one the Provider Edge lower floor equipment;
All described provider edge upper layer devices of setting up multicast path with same described Provider Edge lower floor equipment are carried out active and standby configuration, wherein, use provider edge upper layer device except that a provider edge upper layer device is configured to the master, all the other provider edge upper layer devices all are configured to standby provider edge upper layer device;
Judge main whether normal with provider edge upper layer device work;
When main with provider edge upper layer device when working properly, by the described main multicast path of setting up with provider edge upper layer device and Provider Edge lower floor equipment with transmitting multicast data to described Provider Edge lower floor equipment;
When described main during with the provider edge upper layer device operation irregularity, the multicast path of setting up by standby provider edge upper layer device in the described standby provider edge upper layer device and described Provider Edge lower floor equipment with transmitting multicast data to described Provider Edge lower floor equipment.
2, the method for reliable multicast according to claim 1 is characterized in that, and is described according to the multicast listener agreement, sets up independently multicast path between each described provider edge upper layer device and described at least one the Provider Edge lower floor equipment, comprising:
Described Provider Edge lower floor equipment receives the query message from each described provider edge upper layer device broadcasting, and according to described query message, record sends the described provider edge upper layer device transmit port of described query message;
Described Provider Edge lower floor equipment sends response message to corresponding provider edge upper layer device by described provider edge upper layer device transmit port;
Receive the provider edge upper layer device of described response message and send between the Provider Edge lower floor equipment of this response message and set up multicast path, and the multicast path between record and the described Provider Edge lower floor equipment.
3, as the method for reliable multicast as described in the claim 2, it is characterized in that, described according to the multicast listener agreement, set up independently multicast path between each described provider edge upper layer device and described at least one the Provider Edge lower floor equipment, also comprise:
If Provider Edge lower floor equipment is received many query messages, then record sends each provider edge upper layer device transmit port of described query message; And described many provider edge upper layer device transmit ports have identical priority to described Provider Edge lower floor equipment;
Provider Edge lower floor equipment is replied response message to corresponding provider edge upper layer device according to the reverse path of many query messages of receiving one by one by the provider edge upper layer device transmit port of correspondence;
Receive that many provider edge upper layer devices of the response message of described Provider Edge lower floor device replied set up multicast path respectively and between the described Provider Edge lower floor equipment, and the multicast path between record and this Provider Edge lower floor equipment.
4, as the method for reliable multicast as described in the claim 3, it is characterized in that, it is described when the master is working properly with provider edge upper layer device, by the described main multicast path of setting up with provider edge upper layer device and Provider Edge lower floor equipment with transmitting multicast data to described Provider Edge lower floor equipment, comprising:
After receiving the multicast packet of need transmitting at provider edge upper layer device, judging own is the main provider edge upper layer device of use for the Provider Edge lower floor equipment that receives this multicast packet, or standby provider edge upper layer device;
If judge from the main provider edge upper layer device of using as described Provider Edge lower floor equipment, then by the described main multicast path of setting up with provider edge upper layer device and Provider Edge lower floor equipment, multicast packet is sent to described Provider Edge lower floor equipment;
If judge from standby provider edge upper layer device, then abandon described multicast packet as described Provider Edge lower floor equipment.
5, as the method for reliable multicast as described in the claim 4, it is characterized in that, it is described when described master uses the provider edge upper layer device operation irregularity, the multicast path of setting up by standby provider edge upper layer device in the described standby provider edge upper layer device and described Provider Edge lower floor equipment is given described Provider Edge lower floor equipment with transmitting multicast data, comprising:
When described master uses the provider edge upper layer device operation irregularity, in described standby provider edge upper layer device, re-elect a main provider edge upper layer device of using that conduct is new, by the described new main multicast path of setting up with provider edge upper layer device and described Provider Edge lower floor equipment, multicast packet is sent to described Provider Edge lower floor equipment.
6, a kind of provider edge upper layer device of multicast network is characterized in that, comprising:
The route maintenance module is used for according to the multicast listener agreement, the multicast path between foundation and maintenance and the Provider Edge lower floor equipment;
Active and standby configuration module is used for described provider edge upper layer device is carried out active and standby configuration;
Data processing module is used for when described active and standby configuration module is configured to host apparatus with described provider edge upper layer device, and the multicast packet that receives is sent to described Provider Edge lower floor equipment; When described active and standby configuration module is configured to stand-by equipment with described provider edge upper layer device, abandon described multicast packet.
7, as the provider edge upper layer device of multicast network as described in the claim 6, it is characterized in that described route maintenance module comprises:
The packet sending and receiving unit is used for broadcast query message and the response message that receives the described query message of described Provider Edge lower floor's device replied;
The route maintenance unit is used for the response message received according to described packet sending and receiving unit and sets up and safeguard multicast path between the Provider Edge lower floor equipment of described provider edge upper layer device and this response message of transmission.
8, as the provider edge upper layer device of multicast network as described in the claim 6, it is characterized in that described active and standby configuration module comprises:
Active and standby dispensing unit is used for according to VRRP described provider edge upper layer device being carried out active and standby configuration;
Active and standby switch unit is used to detect described provider edge upper layer device operating state; If detect described provider edge upper layer device job failure, and described provider edge upper layer device is configured to the main provider edge upper layer device of using by described active and standby dispensing unit, then described active and standby switch unit also is used for described provider edge upper layer device is carried out active and standby switching, and described master is switched to standby provider edge upper layer device with provider edge upper layer device.
9, as the provider edge upper layer device of multicast network as described in the claim 6, it is characterized in that described data processing module comprises:
The condition judgement unit is used to judge that described active and standby configuration module is configured to host apparatus or stand-by equipment with described provider edge upper layer device;
Data processing unit is used for abandoning or multicast data forwarding according to the judged result of described condition judgement unit;
If it is host apparatus that provider edge upper layer device is judged in described condition judgement unit, the multicast path of safeguarding according to the route maintenance module then is sent to described Provider Edge lower floor equipment with multicast packet; If judge that provider edge upper layer device is a stand-by equipment, then abandon described multicast packet.
10, a kind of network system of reliable multicast, it is characterized in that, the network system of described reliable multicast comprises at least one Provider Edge lower floor equipment and at least two provider edge upper layer devices that are connected with described Provider Edge lower floor equipment respectively, described at least two provider edge upper layer devices comprise a main provider edge upper layer device and at least one the standby provider edge upper layer device used, each described provider edge upper layer device be used for and described at least one Provider Edge lower floor equipment between set up independently multicast path according to the multicast listener agreement, described master is used for when working properly with provider edge upper layer device, the multicast path of setting up by self and described Provider Edge lower floor equipment is given described Provider Edge lower floor equipment with the transmitting multicast data that receives, described standby provider edge upper layer device is used for described main during with the provider edge upper layer device operation irregularity, the multicast path of setting up by self and described Provider Edge lower floor equipment with described transmitting multicast data to described Provider Edge lower floor equipment.
11, the network system of reliable multicast as claimed in claim 10 is characterized in that, each described provider edge upper layer device is as each described provider edge upper layer device in the claim 6 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100295731A CN101321077B (en) | 2008-07-18 | 2008-07-18 | Reliable multicast method, provider edge upper layer device and system |
| PCT/CN2009/071467 WO2010006524A1 (en) | 2008-07-18 | 2009-04-24 | Method of reliable multicast, superstratum provider apparatus and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100295731A CN101321077B (en) | 2008-07-18 | 2008-07-18 | Reliable multicast method, provider edge upper layer device and system |
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| Publication Number | Publication Date |
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| CN101321077A true CN101321077A (en) | 2008-12-10 |
| CN101321077B CN101321077B (en) | 2011-02-02 |
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| CN2008100295731A Expired - Fee Related CN101321077B (en) | 2008-07-18 | 2008-07-18 | Reliable multicast method, provider edge upper layer device and system |
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| CN (1) | CN101321077B (en) |
| WO (1) | WO2010006524A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2010006524A1 (en) * | 2008-07-18 | 2010-01-21 | 华为技术有限公司 | Method of reliable multicast, superstratum provider apparatus and system |
| CN102437919A (en) * | 2010-09-29 | 2012-05-02 | 中国电信股份有限公司 | Access router and link reliability protection method |
| CN101692654B (en) * | 2009-10-22 | 2012-09-05 | 杭州华三通信技术有限公司 | Method, system and equipment for HUB-Spoken networking |
| CN103259721A (en) * | 2013-04-16 | 2013-08-21 | 杭州华三通信技术有限公司 | Message transmitting method and device in SPBM network |
| CN104104531A (en) * | 2013-04-07 | 2014-10-15 | 中兴通讯股份有限公司 | Method and device for setting L3VPN network side route |
| CN104410570A (en) * | 2014-12-16 | 2015-03-11 | 北京东土科技股份有限公司 | VRRP (virtual router redundancy protocol) based data transmission method and device |
| CN105049363A (en) * | 2015-08-07 | 2015-11-11 | 海信集团有限公司 | Router multicast function detection method and device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100477635C (en) * | 2005-09-08 | 2009-04-08 | 杭州华三通信技术有限公司 | Transmission method and edge apparatus for multicast between fields |
| CN100417141C (en) * | 2005-11-29 | 2008-09-03 | 华为技术有限公司 | Group broadcasting business realizing method |
| CN101192964B (en) * | 2006-11-24 | 2011-04-06 | 中兴通讯股份有限公司 | Master/slave switching system and method for multicast source |
| CN100512128C (en) * | 2007-01-19 | 2009-07-08 | 华为技术有限公司 | Method and system for protecting multicast repeat path and service router |
| CN101321077B (en) * | 2008-07-18 | 2011-02-02 | 华为技术有限公司 | Reliable multicast method, provider edge upper layer device and system |
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2008
- 2008-07-18 CN CN2008100295731A patent/CN101321077B/en not_active Expired - Fee Related
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2009
- 2009-04-24 WO PCT/CN2009/071467 patent/WO2010006524A1/en active Application Filing
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| WO2010006524A1 (en) * | 2008-07-18 | 2010-01-21 | 华为技术有限公司 | Method of reliable multicast, superstratum provider apparatus and system |
| CN101692654B (en) * | 2009-10-22 | 2012-09-05 | 杭州华三通信技术有限公司 | Method, system and equipment for HUB-Spoken networking |
| CN102437919A (en) * | 2010-09-29 | 2012-05-02 | 中国电信股份有限公司 | Access router and link reliability protection method |
| CN102437919B (en) * | 2010-09-29 | 2015-05-27 | 中国电信股份有限公司 | Access router and link reliability protection method |
| CN104104531A (en) * | 2013-04-07 | 2014-10-15 | 中兴通讯股份有限公司 | Method and device for setting L3VPN network side route |
| CN104104531B (en) * | 2013-04-07 | 2018-04-17 | 中兴通讯股份有限公司 | The method and device of L3VPN network sides route is set |
| CN103259721A (en) * | 2013-04-16 | 2013-08-21 | 杭州华三通信技术有限公司 | Message transmitting method and device in SPBM network |
| CN103259721B (en) * | 2013-04-16 | 2016-08-17 | 杭州华三通信技术有限公司 | Message forwarding method in SPBM network and device |
| CN104410570A (en) * | 2014-12-16 | 2015-03-11 | 北京东土科技股份有限公司 | VRRP (virtual router redundancy protocol) based data transmission method and device |
| CN104410570B (en) * | 2014-12-16 | 2017-09-08 | 北京东土科技股份有限公司 | A kind of data transmission method and device based on VRRP |
| CN105049363A (en) * | 2015-08-07 | 2015-11-11 | 海信集团有限公司 | Router multicast function detection method and device |
| CN105049363B (en) * | 2015-08-07 | 2018-11-30 | 海信集团有限公司 | A kind of router multicast functionality detection method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010006524A1 (en) | 2010-01-21 |
| CN101321077B (en) | 2011-02-02 |
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