CN104717143B - For returning the method and apparatus of scene muticast data transmission more - Google Patents

For returning the method and apparatus of scene muticast data transmission more Download PDF

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CN104717143B
CN104717143B CN201510108981.6A CN201510108981A CN104717143B CN 104717143 B CN104717143 B CN 104717143B CN 201510108981 A CN201510108981 A CN 201510108981A CN 104717143 B CN104717143 B CN 104717143B
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equipment
multicast routing
multicast
mark
routing information
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CN104717143A (en
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张力
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Abstract

The embodiment of the present invention provides a kind of method for being used to return scene muticast data transmission more, is favorably improved the stability of data transfer.Methods described includes：Provider's edge PE equipment receives the second Multicast Routing information that the first Multicast Routing information of the first provider P equipment transmission and the 2nd P equipment are sent；The PE equipment to the first Multicast Routing information and the second Multicast Routing information route preferably, determines that route is primary Multicast Routing corresponding to the first Multicast Routing information；The PE equipment the first Multicast Routing information according to corresponding to the primary Multicast Routing, determines the first mark, and described first to identify for identifying the first P equipment be primary root node；The PE equipment sends Multicast Routing information corresponding with the PE equipment respectively to the first P equipment and the 2nd P equipment.

Description

For returning the method and apparatus of scene muticast data transmission more
Technical field
The present embodiments relate to communication technical field, and in particular to a kind of side for being used to return scene muticast data transmission more Method and equipment.
Background technology
Seamless (English is Seamless), (English full name is Multi-Protocol Label for multiprotocol label switching Switching, english abbreviation MPLS) under the network architecture, all business can be passed in Service Access point by MPLS pipelines It is sent to the business processing point specified.Fig. 1 is the schematic diagram of the existing multicast service scene based on Seamless MPLS.There is provided Business edge (English full name is provider edge, english abbreviation PE) equipment can be used as multicasting virtual private network, and (English is complete Referred to as Multicast Virtual Private Network, english abbreviation MVPN) business Service Access point or terminal In the presence of.As shown in figure 1, PE1, PE2 and PE3 can be used as Service Access point, PE1, PE2 and PE3 are belonging respectively to different inside Gateway protocol domain (English full name is Interior Gateway Protocol Area, and english abbreviation is IGP Area).Wherein, PE1 belongs to IGP Area2, PE2 and PE3 and belongs to IGP Area 1, is route between IGP Area2 and IGP Area 1 unreachable.Carry For business (English name provider, english abbreviation P) equipment, such as P1 and P2, Area Border Router (English can be used as Entitled area border router, english abbreviation ABR) connect IGP Area 1 and IGP Area 2.PE1, PE2 and PE3 establishes Internal BGP with P1 and P2 respectively, and (English full name is Interior Border Gateway Protocol, english abbreviation IBGP) neighbours.P1 and P2 can be used as Router Reflector, and (English full name is router Reflector, english abbreviation RR), P1 or P2 can be adjacent to other IBGP by the routing forwarding received respectively from PE1, PE2, PE3 Occupy, realize the Border Gateway Protocol across IGP domains (English full name is Border Gateway Protocol, english abbreviation BGP) Routing diffusion.The forwarding tunnel that P1 or P2 can be established between PE1 and PE2 and PE3.For example, P1 is IBGP adjacent with PE1, PE2, PE3 Occupy, IBGP neighbours of the P1 as PE1, by other IBGP neighbours from the routing forwarding that PE1 is received to P1, i.e. P1 IBGP neighbours PE2、PE3.And for example, P2 and PE1, PE2, PE3 are IBGP neighbours, IBGP neighbours of the P2 as PE1, the route that will be received from PE1 It is transmitted to P2 other IBGP neighbours, i.e. IBGP neighbours PE2, PE3 of P2.
During specific implementation, multicast service passes through multicasting virtual private network (English name of future generation in Seamless MPLS networkings Referred to as next gerneration multicast Virtual Private Network, english abbreviation NG-MVPN) technology To realize.NG-MVPN is used as key-course by BGP and established to perform multicast member discovery and multicast forwarding tree.As shown in figure 1, Multicast source (English full name is source, english abbreviation S) connects PE1, and (English full name is receiver to multicast receivers, English Text is abbreviated as R) connection PE2 and PE3.PE1, PE2 and PE3 can cross over IGP Area1 and IGP Area2 by extending BGP foundation Cross-domain point-to-multipoint label switch paths (English full name is Inter-area Point-to-Multi-Point Label Switch Path, english abbreviation are Inter-area P2MP LSP).Using an Inter-area P2MP LSP in Fig. 1 as Example, PE1 send the first Multicast Routing information to PE1 bgp neighbor, and the first Multicast Routing information carries Network Layer Reachable Information (English full name is Network Layer Reachability Information, english abbreviation NLRI) and extended community Attribute, the extended community attribute are entered as the PE1.P1 is after the first Multicast Routing information is received, by described group Broadcast the extended community attribute in routing iinformation and be revised as P1, obtain the second Multicast Routing information.P1 is by second Multicast Routing Information is sent to PE2 and PE3.P2 is after the first Multicast Routing information is received, by the first Multicast Routing information Extended community attribute is revised as P2, obtains the 3rd Multicast Routing information.P2 by the 3rd Multicast Routing information be sent to PE2 and PE3.PE2 or PE3 is route according to the second Multicast Routing information and the 3rd Multicast Routing information, selection one, and Forwarding tree is established according to the assignment of extended community attribute corresponding to selected route.
In existing BGP routings rule, what the second Multicast Routing information and the 3rd Multicast Routing information included NLRI information is identical, and PE2 and PE3 may select same Route establishment label switched path (English full name label Switched path, abbreviation LSP), as shown in Fig. 2 PE2 and PE3 establish the LSP using P1 as root (root).If event occurs for P1 Barrier, then the business between PE2 and PE3 and PE1 can be interrupted, and reduce the reliability of data transfer.
The content of the invention
The embodiments of the invention provide a kind of method and apparatus for being used to return scene muticast data transmission more, it is favorably improved The reliabilities for returning muticast data transmission in scene more.
Therefore, the embodiment of the present invention provides following technical scheme.
First aspect, there is provided a kind of method for being used to return scene muticast data transmission more, including：
PE equipment receives the second multicast that the first Multicast Routing information of the first P equipment transmission and the 2nd P equipment are sent Routing iinformation, the first Multicast Routing information include the mark of the first P equipment, and the second Multicast Routing information includes second The mark of P equipment；
The PE equipment to the first Multicast Routing information and the second Multicast Routing information route preferably, really Route corresponding to the fixed first Multicast Routing information is primary Multicast Routing；
The PE equipment the first Multicast Routing information according to corresponding to the primary Multicast Routing, determines the first mark Know, described first identifies for identify the first P equipment to be primary root node, and the primary root node corresponds to the primary multicast path By；
The PE equipment is sent corresponding with the PE equipment according to the mark of the first P equipment to the first P equipment Multicast Routing information, the Multicast Routing information corresponding with the PE equipment include described first mark；
The PE equipment sends the described and PE equipment according to the mark of the 2nd P equipment to the 2nd P equipment Corresponding Multicast Routing information.
In the first possible implementation of above-mentioned first aspect, in addition to：
The PE equipment to the first Multicast Routing information and the second Multicast Routing information route preferably, really Route corresponding to the fixed second Multicast Routing information is standby Multicast Routing；
The PE equipment the second Multicast Routing information according to corresponding to the standby Multicast Routing, determines the second mark Know, described second identifies for identify the 2nd P equipment to be standby root node, and the standby root node corresponds to described standby group Broadcast route.
With reference to the first possible implementation of above-mentioned first aspect, additionally provide first aspect second is possible Implementation, the PE equipment are sent and the PE equipment pair according to the mark of the first P equipment to the first P equipment After the Multicast Routing information answered, in addition to：
The PE equipment carries out fault detect to the first P equipment；
After the PE equipment determines the first P device fails, according to the PE equipment and the 2nd P equipment it Between Route establishment state carry out troubleshooting.
With reference to second of possible implementation of above-mentioned first aspect, the third for additionally providing first aspect is possible Implementation, if having established LSP between the PE equipment and the 2nd P equipment, exist between the LSP and second mark Corresponding relation, then the Route establishment state according between the PE equipment and the 2nd P equipment carry out troubleshooting bag Include：
The PE equipment determines that the PE equipment is set with the 2nd P according to the described second mark and the corresponding relation The LSP has been established between standby；
The PE equipment determines that the 2nd P equipment carries out flux of multicast forwarding, receives the group from the 2nd P equipment Broadcast flow.
With reference to second of possible implementation of above-mentioned first aspect, additionally provide first aspect the 4th kind is possible Implementation, if having established LSP between the PE equipment and the 2nd P equipment, exist between the LSP and second mark Corresponding relation, then the Route establishment state according between the PE equipment and the 2nd P equipment carry out troubleshooting bag Include：
The PE equipment determines that the PE equipment is set with the 2nd P according to the described second mark and the corresponding relation The LSP has been established between standby；
The PE equipment determines that the 2nd P equipment forwards without flux of multicast, and first is sent to the 2nd P equipment Instruction, described first instructs for indicating that the 2nd P equipment carries out flux of multicast forwarding；
The PE equipment receives the flux of multicast from the 2nd P equipment.
With reference to second of possible implementation of above-mentioned first aspect, additionally provide first aspect the 5th kind is possible Implementation, LSP is not set up between the PE equipment and the 2nd P equipment, it is described according to the PE equipment and the 2nd P Route establishment state between equipment, which carries out troubleshooting, to be included：
The PE equipment determine to be not present with the described second corresponding LSP of mark, send the second finger to the 2nd P equipment Order, described second instructs for indicating that the LSP and the 2nd P are established between the 2nd P equipment and the PE equipment to be set It is standby to carry out flux of multicast forwarding；
The PE equipment receives the flux of multicast from the 2nd P equipment.
With reference to the possible implementation of any one of above-mentioned first aspect or first aspect, first aspect is additionally provided 6th kind of possible implementation, take in the extended community attribute information of the Multicast Routing information corresponding with the PE equipment With the described first mark, the extended community attribute information includes overall identification, and the overall identification is used to carry described first Mark.
Second aspect, there is provided a kind of method for being used to return scene muticast data transmission more, including：
P equipment receives the Multicast Routing information corresponding with the PE equipment that PE equipment is sent, the described and PE equipment Corresponding Multicast Routing information includes the first mark, and described first identifies for identifying the P equipment as primary root node, the master Root node is corresponding with primary Multicast Routing；
The P equipment judge the P equipment identify whether with described first mark match；
If the P equipment determines that the mark of the P equipment matches with the described first mark, the P equipment is according to institute State Multicast Routing information corresponding with the PE equipment, the primary LSP established between the P equipment and the PE equipment.
In the first possible implementation of second aspect, in addition to：
The P equipment and described first identifies progress two-way converting detection between identified P equipment；
After the P equipment detects the identified P device fails of first mark, the P equipment is according to the P Route establishment state between equipment and the PE equipment carries out troubleshooting.
With reference to the first possible implementation of above-mentioned second aspect, additionally provide second aspect second is possible Implementation, in addition to：
If the P equipment determines that the mark of the P equipment mismatches with the described first mark, the P equipment according to The the first tactful and described Multicast Routing information corresponding with the PE equipment pre-set, establish the P equipment with it is described Standby LSP between PE equipment, first strategy is for indicating that it is standby between the PE equipment that the P equipment is established LSP。
With reference to the first possible implementation of above-mentioned second aspect, the third for additionally providing second aspect is possible Implementation, in addition to：
If the P equipment determines that first mark mismatches with the mark of the P equipment, the P equipment according to The second strategy pre-set, the standby LSP not established between the PE equipment, second strategy are used to indicate the P The standby LSP that equipment is not established between the PE equipment；
The P equipment preserves the Multicast Routing information corresponding with the PE equipment.
With reference to second of possible implementation of above-mentioned second aspect, additionally provide second aspect the 4th kind is possible Implementation, the P equipment carry out troubleshooting bag according to the Route establishment state between the P equipment and the PE equipment Include：
The P equipment sends flux of multicast by the standby LSP to the PE equipment.
With reference to second of possible implementation of above-mentioned second aspect, additionally provide second aspect the 5th kind is possible Implementation, the P equipment carry out troubleshooting bag according to the Route establishment state between the P equipment and the PE equipment Include：
The P equipment receives the first instruction that the PE equipment is sent, and described first instructs for indicating that the P equipment is entered Row flux of multicast forwards；
The P equipment sends flux of multicast by the standby LSP to the PE equipment.
With reference to the third possible implementation of above-mentioned second aspect, additionally provide second aspect the 6th kind is possible Implementation, the P equipment carry out troubleshooting bag according to the Route establishment state between the P equipment and the PE equipment Include：
The P equipment is established and the PE equipment rooms according to the Multicast Routing information corresponding with the PE equipment Standby LSP；
The P equipment sends flux of multicast by the standby LSP to the PE equipment.
With reference to the third possible implementation of above-mentioned second aspect, additionally provide second aspect the 7th kind is possible Implementation, the P equipment carry out troubleshooting bag according to the Route establishment state between the P equipment and the PE equipment Include：
The P equipment receives the second instruction that the PE equipment is sent, described second instruct for indicate the P equipment with The LSP is established between the PE equipment and the 2nd P equipment carries out flux of multicast forwarding, the P equipment is set with the PE The LSP established between standby is the standby LSP；
The P equipment sends flux of multicast by the standby LSP to the PE equipment.
The third aspect, there is provided a kind of PE equipment, including：
Receiving unit, for receiving the first Multicast Routing information that the first P equipment sends and the 2nd P equipment is sent the Two Multicast Routing information, the first Multicast Routing information include the mark of the first P equipment, the second Multicast Routing packet Include the mark of the 2nd P equipment；
The first via is by preferred process unit, for the first Multicast Routing information and the second Multicast Routing information Route preferably, determine that route is primary Multicast Routing corresponding to the first Multicast Routing information；
First mark determining unit, for the first Multicast Routing information according to corresponding to the primary Multicast Routing, Determine the first mark, described first to identify for identifying the first P equipment be primary root node, described in the primary root node correspondence Primary Multicast Routing；
First transmitting element, for the mark according to the first P equipment, sent and the PE to the first P equipment Multicast Routing information corresponding to equipment, the Multicast Routing information corresponding with the PE equipment include the described first mark；
Second transmitting element, for the mark according to the 2nd P equipment, described and institute is sent to the 2nd P equipment State Multicast Routing information corresponding to PE equipment.
In the first possible implementation of the third aspect, in addition to：
Secondary route preferred process unit, for the first Multicast Routing information and the second Multicast Routing information Route preferably, determine that route is standby Multicast Routing corresponding to the second Multicast Routing information；
Second mark determining unit, for the second Multicast Routing information according to corresponding to the standby Multicast Routing, Determine the second mark, described second to identify for identifying the 2nd P equipment be standby root node, the standby root node correspondence The standby Multicast Routing.
In the first possible implementation with reference to the above-mentioned third aspect, additionally provide the third aspect second may Implementation, in addition to：
Fault detection unit, in the mark according to the first P equipment, to the first P equipment send with it is described After Multicast Routing information corresponding to PE equipment, fault detect is carried out to the first P equipment；
Fault processing unit, for after the fault detection unit determines the first P device fails, according to institute The Route establishment state stated between PE equipment and the 2nd P equipment carries out troubleshooting.
With reference to second of possible implementation of the above-mentioned third aspect, the third for additionally providing the third aspect is possible Implementation, if having established LSP between the PE equipment and the 2nd P equipment, exist between the LSP and second mark Corresponding relation, then the fault processing unit be specifically used for：
According to the described second mark and the corresponding relation, determine built between the PE equipment and the 2nd P equipment Found the LSP；
Determine that the 2nd P equipment carries out flux of multicast forwarding, receive the flux of multicast from the 2nd P equipment.
With reference to second of possible implementation of the above-mentioned third aspect, additionally provide the third aspect the 4th kind is possible Implementation, if having established LSP between the PE equipment and the 2nd P equipment, exist between the LSP and second mark Corresponding relation, then the fault processing unit be specifically used for：
According to the described second mark and the corresponding relation, determine built between the PE equipment and the 2nd P equipment Found the LSP；
Determine that the 2nd P equipment forwards without flux of multicast, the first instruction is sent to the 2nd P equipment, it is described First instructs for indicating that the 2nd P equipment carries out flux of multicast forwarding, and receives the multicast data flow from the 2nd P equipment Amount.
With reference to second of possible implementation of the above-mentioned third aspect, additionally provide the third aspect the 5th kind is possible Implementation, LSP is not set up between the PE equipment and the 2nd P equipment, then the fault processing unit is specifically used for：
It is determined that in the absence of with the described second corresponding LSP of mark, send second to the 2nd P equipment and instruct, described the Two instruct for indicating that the LSP and the 2nd P equipment are established between the 2nd P equipment and the PE equipment carries out multicast Flow forwards；
Receive the flux of multicast from the 2nd P equipment.
Fourth aspect, there is provided a kind of P equipment, including：
Receiving unit, for receiving the Multicast Routing information corresponding with the PE equipment of PE equipment transmission, described and institute Stating Multicast Routing information corresponding to PE equipment includes the first mark, and described first identifies and set for identifying as the P of primary root node Standby, the primary root node is corresponding with primary Multicast Routing；
Judging unit, for judge the P equipment identify whether with described first mark match；
First processing units, for determining that the mark of the P equipment matches with the described first mark in the judging unit Afterwards, according to the Multicast Routing information corresponding with the PE equipment, establish primary between the P equipment and the PE equipment LSP。
In the first possible implementation of fourth aspect, in addition to：
Fault detection unit, two-way converting is carried out between identifying identified P equipment for the P equipment and described first Detection；
Fault processing unit, for detecting the identified P equipment hair of first mark in the fault detection unit After raw failure, troubleshooting is carried out according to the Route establishment state between the P equipment and the PE equipment.
With reference to the first possible implementation of above-mentioned fourth aspect, additionally provide fourth aspect second is possible Implementation, in addition to：
Second processing unit, for not determining the mark of the P equipment and the described first mark not in the judging unit After matching somebody with somebody, according to the pre-set first tactful and described Multicast Routing information corresponding with the PE equipment, establish the P and set The standby standby LSP between the PE equipment, first strategy are used to indicate that the P equipment is established between the PE equipment Standby LSP.
With reference to the first possible implementation of above-mentioned fourth aspect, the third for additionally providing fourth aspect is possible Implementation, in addition to：
3rd processing unit, if for determining that first mark is set with the P in the judging unit P equipment After standby mark mismatches, according to the second strategy pre-set, the standby LSP not established between the PE equipment is described Second strategy is used to indicate the standby LSP that the P equipment is not established between the PE equipment；
Storage unit, for preserving the Multicast Routing information corresponding with the PE equipment.
With reference to second of possible implementation of above-mentioned fourth aspect, additionally provide fourth aspect the 4th kind is possible Implementation, the fault processing unit are specifically used for passing through the standby LSP, and flux of multicast is sent to the PE equipment.
With reference to second of possible implementation of above-mentioned fourth aspect, additionally provide fourth aspect the 5th kind is possible Implementation, the fault processing unit are specifically used for receiving the first instruction that the PE equipment is sent, and first instruction is used Flux of multicast forwarding is carried out in the instruction P equipment, and by the standby LSP, flux of multicast is sent to the PE equipment.
With reference to the third possible implementation of above-mentioned fourth aspect, additionally provide fourth aspect the 6th kind is possible Implementation, the fault processing unit are specifically used for, according to the Multicast Routing information corresponding with the PE equipment, establishing With the standby LSP of the PE equipment rooms, and by the standby LSP, flux of multicast is sent to the PE equipment.
With reference to the third possible implementation of above-mentioned fourth aspect, additionally provide fourth aspect the 7th kind is possible Implementation, above-mentioned fault processing unit are specifically used for：
The second instruction that the PE equipment is sent is received, described second instructs for indicating that the P equipment is set with the PE The LSP is established between standby and the 2nd P equipment carries out flux of multicast forwarding, is built between the P equipment and the PE equipment The vertical LSP is the standby LSP；
By the standby LSP, flux of multicast is sent to the PE equipment.
5th aspect, there is provided a kind of to be used to return the system of scene muticast data transmission, the system includes above-mentioned the more The PE equipment and above-mentioned fourth aspect or four directions that any one possible implementation of three aspects or the third aspect is provided The P equipment that the possible implementation of any one of face is provided.
Provided in an embodiment of the present invention to be used to return the method and apparatus of scene muticast data transmission, PE equipment receives the more After the second Multicast Routing information that the first Multicast Routing information and the 2nd P equipment that one P equipment is sent are sent, according to first group Broadcast routing iinformation and the second Multicast Routing information route preferably, determine that route is corresponding to the first Multicast Routing information Primary Multicast Routing.The first Multicast Routing information corresponding to primary Multicast Routing described in the PE equipment, it is determined that for marking Know the first mark that the first P equipment is primary root node.The PE equipment sends and included to the first P equipment and the 2nd P equipment The Multicast Routing information corresponding with the PE equipment of first mark.The first P equipment and the 2nd P equipment are receiving To after the Multicast Routing information corresponding with the PE equipment comprising the described first mark, can be according to the described first mark judgement No foundation and the Multicast Routing of the PE equipment.Method provided in an embodiment of the present invention is to as primary root node and for root node P equipment have sent the Multicast Routing information corresponding with PE equipment, by choosing whether to establish as the P equipment of standby root node With the route stand-by of the PE equipment.If, can be according to the described first mark as the P device fails of primary root node And the Multicast Routing information corresponding with PE equipment quickly realizes fault recovery, business interruption time is reduced, is improved more The reliability for returning contextual data to transmit.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments described in application, for those of ordinary skill in the art, it can also be obtained according to these accompanying drawings other Accompanying drawing.
Fig. 1 is Seamless MPLS multicast services deployment scenario schematic diagram of the prior art；
Fig. 2 is LSP flux of multicast model schematic of the prior art
Fig. 3 is a kind of method flow schematic diagram for being used to return scene muticast data transmission more provided in an embodiment of the present invention；
Fig. 4 is a kind of implementation schematic diagram of extended community attribute information provided in an embodiment of the present invention；
Fig. 5 is provided in an embodiment of the present invention another for returning the method flow of scene muticast data transmission to illustrate more Figure；
Fig. 6 A are single source scene flux of multicast model optimization schematic diagram provided in an embodiment of the present invention；
Fig. 6 B are single source scene flux of multicast model optimization schematic diagram provided in an embodiment of the present invention；
Fig. 7 is a kind of PE equipment schematic diagrams provided in an embodiment of the present invention；
Fig. 8 is a kind of PE equipment schematic diagrams provided in an embodiment of the present invention；
Fig. 9 is a kind of P equipment schematic diagrams provided in an embodiment of the present invention；
Figure 10 is a kind of P equipment schematic diagrams provided in an embodiment of the present invention.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the present invention, below in conjunction with of the invention real The accompanying drawing in example is applied, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described implementation Example only part of the embodiment of the present invention, rather than whole embodiments.It is common based on the embodiment in the present invention, this area The every other embodiment that technical staff is obtained under the premise of creative work is not made, should all belong to protection of the present invention Scope.
The term used in embodiments of the present invention is only merely for the purpose of description specific embodiment, and is not intended to be limiting The present invention." one kind ", " described " and "the" of singulative used in the embodiment of the present invention and appended claims It is also intended to including most forms, unless context clearly shows that other implications.It is also understood that term used herein "and/or" refers to and any or all may be combined comprising the associated list items purpose of one or more.
Return the method and apparatus of scene muticast data transmission reliability the embodiments of the invention provide a kind of enhancing more, can Improve the reliabilities for returning contextual data to transmit more, improve fault recovery speed, reduce business interruption time.
It is provided in an embodiment of the present invention a kind of for returning the method flow of scene muticast data transmission to show referring to Fig. 3 more It is intended to, it may include following steps：
S301, PE equipment receive second that the first Multicast Routing information of the first P equipment transmission and the 2nd P equipment are sent Multicast Routing information, the first Multicast Routing information include the mark of the first P equipment, and the second Multicast Routing information includes The mark of 2nd P equipment.
Method provided in an embodiment of the present invention can apply to the scene shown in Fig. 1.The PE equipment, which is specifically as follows, to be connect Receiving end PE equipment, its Multicast Routing information from P equipment received are specifically as follows the multicast associated with another PE equipment Routing iinformation.
Illustrated below by taking the multicast service scene shown in Fig. 1 as an example.The first P equipment specifically can be with shown in Fig. 1 P1 equipment, the 2nd P equipment is specifically as follows the P2 equipment shown in Fig. 1.The first Multicast Routing information includes the first P equipment Mark, be specifically as follows the address of the first P equipment；Second Multicast Routing information includes the mark of the 2nd P equipment, specifically can be with For the address of the 2nd P equipment.
As shown in figure 1, PE1 incoming multicasts source, Multicast Routing information, the Multicast Routing information tool are sent to bgp neighbor Body is that autonomous system finds that (English name is Intra Auto System Auto Discovery to route, English automatically in domain It is abbreviated as Intra-AS A-D).The Multicast Routing information includes NLRI and extended community attribute.Wherein, the Multicast Routing The value of primary routing (Original Router) in the NLRI of information is the mark of the PE equipment of originally transmitted Multicast Routing information Know information, such as PE1 (10.1.1.1).The extended community attribute, for example (English name is cross-domain point-to-multipoint section of next-hop Inter-area Point-to-Multi-Point Segment Next-hop, can be described as Inter-area P2MP again Segment Next-hop), be entered as PE1 (10.1.1.1).The assignment of the extended community attribute represents P2MP LSP's Root node.The node for receiving the Multicast Routing information will be that root establishes P2MP LSP with PE1 (10.1.1.1).
As shown in figure 1, after P1 and P2 receive the Multicast Routing information, the P1 as RR and the P2 as RR need The assignment of extended community attribute in the Multicast Routing information is updated, for example as RR P1 by the Multicast Routing The assignment of extended community attribute in information is revised as P1 address, i.e. P1 is by Inter-area P2MP Segment Next- Hop assignment is changed to P1 (10.1.1.2), obtains the first Multicast Routing information.P2 as RR is by the Multicast Routing information In the assignment of extended community attribute be revised as P2, P2 changes Inter-area P2MP Segment Next-Hop assignment For P2 (10.1.1.3), the second Multicast Routing information is obtained.The first Multicast Routing information is sent to PE2 by the P1 as RR And PE3.The second Multicast Routing information is sent to PE2 and PE3 by the P2 as RR.The first Multicast Routing information that P1 is obtained Including NLRI in the NLRI that includes of the Multicast Routing information from PE1 that receives of Original Router assignment and P1 In Original Router assignment it is identical.Original in the NLRI that the second Multicast Routing information that P2 is obtained includes Original Router assignment in the NLRI that Router assignment includes with the Multicast Routing information from PE1 that P2 is received It is identical.P1 and P2 can preserve the Intra-AS A-D routes received from PE1, and establish IGP Area2 by root of PE1 Intra-area P2MP LSP in domain.
As shown in figure 1, for PE2, PE2 can receive the first Multicast Routing information and second multicast path By information.The first Multicast Routing information and the second Multicast Routing information carry identical Original Router and assigned Value, the first Multicast Routing information and the second Multicast Routing information carry different inter-area P2MP Segment Next-Hop assignment.For PE3, PE3 can also receive the first Multicast Routing information and described second Multicast Routing information.The first Multicast Routing information and the second Multicast Routing information carry identical Original Router assignment；The first Multicast Routing information and the second Multicast Routing information carry different inter-area P2MP Segment Next-Hop assignment.
S302, the PE equipment are route to the first Multicast Routing information and the second Multicast Routing information It is preferred that determine that route is primary Multicast Routing corresponding to the first Multicast Routing information.
As shown in figure 1, PE2 and PE3 connect a multicast receivers respectively.By taking PE2 as an example, PE2 receives P1 transmissions After the second Multicast Routing information that first multicast path information and P2 are sent, determine NRL in the first Multicast Routing information and NLRI in the second Multicast Routing information is identical, the extended community attribute in the first Multicast Routing information and described the Extended community attribute in two Multicast Routing information is different.PE2 performs route preferred process according to BGP routings rule, is sent out from P1 One route of selection in the route that the route and P2 sent are sent, such as PE2 select road corresponding to the first Multicast Routing information By for primary Multicast Routing.The method of PE3 selection routes is identical with the method for above-mentioned PE2 selection routes, will not be repeated here.
S303, the PE equipment the first Multicast Routing information according to corresponding to the primary Multicast Routing, determine One mark, described first identifies for identify the first P equipment to be primary root node, and the primary root node corresponds to described primary group Broadcast route.
For example, in the Multicast Routing information that the PE equipment sends node corresponding to primary Multicast Routing Inter-area P2MP Segment Next-Hop values are labeled as primary root node.Alternatively, the PE equipment can also be by master Root node information is stored in BGP Multicast Routing information tables.
In multicast scene as shown in Figure 1, if PE2 establishes according to route preference rule using P1 as primary root node, PE2 Primary Multicast Routing using P1 as primary root node.If PE3 establishes according to route preference rule using P1 as primary root node, PE3 Primary Multicast Routing using P1 as primary root node.The difference that PE2 and PE3 can be set according to route preference rule, selects different P Node is as primary root node.Such as：PE2 selects P1, and as primary root node, PE2 selects P2 as standby root node.PE3 selects P2 As primary root node, PE3 selects P1 as standby root node.
Wherein, the mode for setting the first mark can be very flexible, and those skilled in the art can set as needed Put.In one implementation, primary root node information is stored in BGP Multicast Routing information tables by PE equipment.BGP Multicast Routings The new field extended in information table can be used for preserving the information of primary root node and the information of primary Multicast Routing, such as protect Deposit the identification information of primary root node, or the assignment of extended community attribute.
S304, the PE equipment send to the first P equipment and set with the PE according to the mark of the first P equipment Standby corresponding Multicast Routing information, the Multicast Routing information corresponding with the PE equipment include the described first mark.
For example, the mark of the first P equipment can be the address information of the first P equipment or the first P ID of equipment etc. can identify the information of first equipment.
S305, the PE equipment according to the mark of the 2nd P equipment, to the 2nd P equipment send it is described with it is described Multicast Routing information corresponding to PE equipment.
For example, the mark of the 2nd P equipment can be the address information of the 2nd P equipment or the 2nd P ID of equipment etc. can identify the information of second equipment.
Unlike the prior art, when the embodiment of the present invention implements, no longer only to the P as primary root node Equipment sends corresponding with PE equipment Multicast Routing information, but to the first P equipment and the 2nd P equipment send with it is described Multicast Routing information corresponding to PE equipment, the Multicast Routing information carry first mark.
As shown in figure 1, if the primary root node of PE2 equipment selection is P1, standby root node is P2 equipment.PE2 to P1 and P2 sends Multicast Routing information corresponding with the PE2, and the Multicast Routing information is specially that leaf node is found automatically (Leaf A-D) is route.The first mark is carried in the extended community attribute of the Leaf A-D routes.Shown first is identified as P1 Mark.The NLRL of the Leaf A-D routes is identical with NLRI in the Intra-AS A-D routes that PE2 is received, i.e. PE2 hairs The Leaf A-D sent NLRI original Router value is with the NLRI's in the Intra-AS A-D routes received Original Router value is identical, for example original Router value is PE1 (10.1.1.).
For example, the extended community attribute information of the Multicast Routing information corresponding with the PE equipment can carry institute State the first mark.The extended community attribute information may also include overall identification, and the overall identification is used to carry shown extension Group attribute information carries first mark.Fig. 4 is one kind of extended community attribute information provided in an embodiment of the present invention Implementation schematic diagram.Described in being carried in overall identification (Global Administrator) field of the extended community attribute First mark, such as the selected P1 of PE2 address, i.e., (10.1.1.2).
Alternatively,, can be according to according in the first Multicast Routing information after PE2 selectes primary root node by taking PE2 as an example Assignment in inter-area P2MP Segment Next-Hop, for example P1 is primary root node, is established in IGP Area1 domains intra-area P2MP LSP.PE2 issues BGP leaf A-D routes to P1 and P2, the BGP leaf A-D routes that PE2 is sent Can be Multicast Routing information corresponding with PE2.
By taking PE3 as an example, after PE3 selectes primary root node, inter-area P2MP of the meeting in the first Multicast Routing information Assignment in Segment Next-Hop, such as P1 are primary root node, the intra-area P2MP established in IGP Area1 domains LSP.PE3 issues BGP leaf A-D routes to P1 and P2, and the BGP leaf A-D routes that PE3 is sent can be corresponding with PE3 Multicast Routing information.
Alternatively, after S301, method provided in an embodiment of the present invention also includes：The PE equipment is to first multicast Routing iinformation and the second Multicast Routing information route preferably, determine to route corresponding to the second Multicast Routing information For standby Multicast Routing；The PE equipment the second Multicast Routing information according to corresponding to the standby Multicast Routing, it is determined that Second mark, described second identifies for identify the 2nd P equipment be standby root node, described in the standby root node correspondence Standby Multicast Routing.
For example, the PE equipment can determine that route is standby multicast path corresponding to the second Multicast Routing information By.The inter-area entrained by the second Multicast Routing information that the PE equipment sends node corresponding to standby Multicast Routing P2MP Segment Next-Hop values are labeled as standby root node.
Alternatively, standby root node information can also be stored in BGP Multicast Routing information tables by the PE equipment.
Multicast scene as shown in Figure 1, by taking PE2 as an example, PE2 can be using P1 as primary root node, using P2 as standby section Point.PE3 can be using P2 as primary root node, can be using P1 as standby root node.Wherein, the side of the first mark and the second mark is set Formula can be very flexible, and those skilled in the art can be arranged as required to.In one implementation, the PE equipment Primary root node and standby root node information are stored in BGP Multicast Routing information tables.It is expansible new in BGP Multicast Routing information tables Field, the new field of the extension is used for the information for saving backup root node and standby Multicast Routing.
Alternatively, the PE equipment is sent and the PE according to the mark of the first P equipment to the first P equipment After Multicast Routing information corresponding to equipment, methods described also includes：The PE equipment carries out failure inspection to the first P equipment Survey；After the PE equipment determines the first P device fails, according between the PE equipment and the 2nd P equipment Route establishment state carries out troubleshooting.
For example, the PE equipment carries out two-way converting detection to the first P equipment, (English full name is Bidirectional Forwarding Detection, abbreviation BFD).If the PE equipment is determined as primary root node First P device fails, then the PE equipment is according to the Route establishment state between the PE equipment and the 2nd P equipment Carry out troubleshooting.
If for example, having established LSP between the PE equipment and the 2nd P equipment, the LSP marks with described second Corresponding relation between knowledge be present, the Route establishment state according between the PE equipment and the 2nd P equipment carries out failure Processing includes：The PE equipment determines the PE equipment and the 2nd P according to the described second mark and the corresponding relation The LSP has been established between equipment；The PE equipment determines that the 2nd P equipment carries out flux of multicast forwarding, and reception comes from institute State the flux of multicast of the 2nd P equipment.
In this implementation, PE equipment can the P according to corresponding to the second of preservation the mark determines standby root node set It is standby, and determine whether to establish LSP with P equipment.When PE equipment P equipment corresponding with standby root node has established LSP and the P When equipment performs flux of multicast forwarding, dual transmitting and receiving model is established between the PE equipment and the P equipment, it is at this moment, main The P equipment corresponding to root node carries out flux of multicast forwarding, and P equipment corresponding to standby root node also performs flux of multicast forwarding, Then PE equipment can receive flux of multicast from two inter-area P2MP LSP, but PE equipment can select to receive main root The flux of multicast transmitted on corresponding inter-area P2MP LSP.The reliability of this model is very high, once primary path Inter-area P2MP LSP break down, and the PE equipment, which can switch to, receives backup path inter-area P2MP The flux of multicast transmitted on LSP, that is, receive the flux of multicast of the P equipment from standby root node.Under this implementation, by The standby LSP paths with PE equipment have been established in P equipment corresponding to standby root node and perform flux of multicast forwarding, therefore in master Corresponding to root node during P device fails, PE equipment can rapidly switch to receive from P equipment corresponding to standby root node Flux of multicast, the speed of fault recovery is improved, effectively reduces business interruption time, improve the reliable of muticast data transmission Property.
If for example, having established LSP between the PE equipment and the 2nd P equipment, the LSP marks with described second Corresponding relation between knowledge be present, the Route establishment state according between the PE equipment and the 2nd P equipment carries out failure Processing includes：The PE equipment determines that the PE equipment is set with the 2nd P according to the described second mark and the corresponding relation The LSP has been established between standby；The PE equipment determines that the 2nd P equipment forwards without flux of multicast, to the 2nd P Equipment sends the first instruction, and described first instructs for indicating that the 2nd P equipment carries out flux of multicast forwarding；The PE equipment Receive the flux of multicast from the 2nd P equipment.For this implementation, the PE equipment needs to send first and instruct Indicate that the 2nd P equipment performs flux of multicast forwarding.Because the 2nd P equipment has been established between PE equipment corresponding to standby root node Standby LSP paths, only need to indicate the 2nd P equipment perform flux of multicast forwarding, flux of multicast can also be carried out quickly The switching of reception, relative to prior art, the speed of fault recovery is improved, effectively reduces business interruption time, is improved The reliability of data transfer.
For example, do not set up LSP between the PE equipment and the 2nd P equipment, it is described according to the PE equipment with Route establishment state between the 2nd P equipment, which carries out troubleshooting, to be included：The PE equipment determines to be not present and described the LSP corresponding to two marks, the second instruction is sent to the 2nd P equipment, described second instructs for indicating the 2nd P equipment The LSP is established between the PE equipment and the 2nd P equipment carries out flux of multicast forwarding；The PE equipment is received and come from The flux of multicast of the 2nd P equipment.
In S305, the 2nd P equipment corresponding to the standby root node of warp-wise have sent the multicast path of oneself to the PE equipment By information, therefore, in the first P device fails corresponding to primary root node, PE equipment can not retransmit the multicast of oneself Routing iinformation, but quickly trigger the Multicast Routing for the PE equipment that the 2nd P equipment corresponding to standby root node is sent before Information establish and the PE equipment between LSP and perform flux of multicast forwarding.Control plane weight is needed relative to prior art The new mode for issuing Route establishment LSP, The present invention reduces the flow of troubleshooting, and it is extensive also to improve failure to a certain extent Multiple speed, effectively reduces business interruption time, improves the reliability of data transfer.
In order to improve the reliability of data processing, can also be sent out from the PE equipment to P equipment corresponding to standby root node The Leaf A-D routes that inter-area P2MP Segment Root are entered as the P equipment are sent, triggering is used as standby root node P equipment quickly establish inter-area P2MP LSP and perform multicast forwarding.
In embodiments of the present invention, PE equipment receives the first Multicast Routing information of the first P equipment transmission and the 2nd P is set The second Multicast Routing information that preparation is sent, and route according to the first Multicast Routing information and the second Multicast Routing information It is preferred that.The PE equipment determines that route is primary Multicast Routing corresponding to the first Multicast Routing information, and according to primary multicast path By the corresponding first Multicast Routing information, determine that the first mark for the first P equipment is primary root node.The PE equipment to First P equipment and the 2nd P equipment send the Multicast Routing information corresponding with the PE equipment for including the first mark.Due to In method provided in an embodiment of the present invention, PE equipment can be to the P equipment as primary root node and equal as the P equipment of standby root node The Multicast Routing information of the PE equipment is sent, is by the P equipment as primary root node or as the P equipment selection of standby root node No foundation and the route stand-by of the PE equipment.Once P device fails corresponding to primary root node, then can be according to advance mark The active and standby root node information and the Multicast Routing information of the PE equipment known quickly realize fault recovery, when reducing service disconnection Between, improve the reliabilities for returning contextual data to transmit more.
Referring to Fig. 5, for another method flow for being used to return scene muticast data transmission more provided in an embodiment of the present invention Schematic diagram, it may include steps of：
S501, P equipment receive the Multicast Routing information corresponding with the PE equipment that PE equipment is sent, the described and PE Multicast Routing information corresponding to equipment includes the first mark, and described first identifies for identifying the P equipment as primary root node, institute It is corresponding with primary Multicast Routing to state primary root node.
Wherein, carried in the Multicast Routing information that the PE equipment is sent the first mark be specially with the PE equipment pair First mark is carried in the extended community attribute information for the Multicast Routing information answered.The extended community attribute information includes Overall identification, the overall identification are used to carry first mark.
Illustrated by taking scene shown in Fig. 1 as an example, PE2 equipment is sent and the PE2 equipment to P1 equipment and P2 equipment Corresponding Multicast Routing information, the Multicast Routing information are specially Leaf A-D routes.Expansion in the Multicast Routing information Exhibit-delegation's body attribute information, such as inter-area P2MP segment Root, can carry the first mark.For P1 equipment and P2 The Leaf A-D that the Original Router that equipment can receive in NLRI are PE2 (10.1.1.4) are route, and in the route It is P1 (10.1.1.2) to carry inter-area P2MP Segment Root.P1 and P2 can be by inter-area P2MP Value in Segment Root with oneself in itself compared with.
S502, the P equipment judge the P equipment identify whether with described first mark match.
For example, when the described first mark is specially the IP address of primary root node, P1 equipment is by described primary root node IP address judges whether to match compared with the IP address of the P1 equipment.Certainly, the first mark can also be other realizations Form, do not limit herein.
S503, if the P equipment determines that the mark of the P equipment matches with the described first mark, the P equipment root According to the Multicast Routing information corresponding with the PE equipment, the primary LSP established between the P equipment and the PE equipment.
When P equipment determines that first mark matches with the mark of the P equipment, you can to determine the P equipment quilt The PE selection of equipment is primary root node.The P equipment is built according to the Multicast Routing information corresponding with the PE equipment Vertical Inter-area P2MP LSP between the P equipment and the PE equipment.The P equipment can realize IGP Area1 and Intra-area P2MP LSP adhesions in IGP Area2, establish the inter-area across IGP Area1 and IGP Area2 P2MP LSP。
Scene as shown in Figure 1, by taking P1 as an example, P1 receive PE2 issue BGP Leaf A-D route after, except to PE1 is reflected outside the route, can check the NLRI that the route carries.P1 can carry according in the BGP Leaf A-D routes received NLRI, search locally preserve Intra-AS A-D route, to obtain using PE1 as in the IGP Area2 domains that root is established intra-area P2MP LSP.Intra-areas of the P1 using the P2MP LSP entrances in IGP Area1 as IGP Area2 P2MP LSP outlet carries out adhesion, obtains an inter-area P2MP LSP across IGP Area1 and IGP Area2. The method that P2 obtains cross-domain IGP Area1 and IGP Area2 inter-area P2MP LSP is identical with P1, no longer superfluous herein State.
Alternatively, after S502, method provided in an embodiment of the present invention can also include：If the P equipment determines institute The mark of P equipment is stated to mismatch with the described first mark, then the P equipment according to pre-set first it is tactful and described and Multicast Routing information corresponding to the PE equipment, the standby LSP established between the P equipment and the PE equipment, described first Strategy is used for the standby LSP for indicating that the P equipment is established between the PE equipment.
For example, the P equipment is established standby between the PE equipment according to the first strategy pre-set LSP.Scene as shown in Figure 1, the intra-area P2MP that P2 equipment can be established in the IGP Area1 domains with PE2 equipment LSP and send Leaf-AD routes, intra-area P2MP LSP normally established in IGP Area2 domains, and finally to PE1 Complete inter-area P2MP LSP adhesion.P2 equipment can perform the flux of multicast forwarding from the PE equipment, to build Vertical more reliable data transmission path；Or P2 equipment does not perform the flux of multicast forwarding from the PE equipment, to save net Network bandwidth.
Alternatively, after S502, method provided in an embodiment of the present invention can also include：If the P equipment determines institute The mark for stating the first mark and the P equipment mismatches, then the P equipment is according to the second strategy pre-set, do not establish and Standby LSP between the PE equipment, second strategy are used to indicate that the P equipment is not established between the PE equipment Standby LSP；The P equipment preserves the Multicast Routing information corresponding with the PE equipment.
For example, the P equipment is not established standby between the PE equipment according to the second strategy pre-set LSP, and preserve the Multicast Routing information corresponding with the PE equipment.In this implementation, P equipment is not built in advance The vertical standby LSP between PE equipment, but the Multicast Routing information of the corresponding PE equipment received is preserved, in case at consequent malfunction Reason uses.
Alternatively, method provided by the invention also includes：The P equipment and the described first identified P equipment of mark it Between carry out two-way converting detection；After the P equipment detects the identified P device fails of first mark, the P is set The standby Route establishment state according between the P equipment and the PE equipment carries out troubleshooting.
Because P equipment corresponding to PE equipment to P equipment corresponding to primary root node and standby root node is sent comprising The Multicast Routing information of one mark, therefore, P equipment corresponding to standby root node can be according in the Multicast Routing information First mark, the two-way converting established between the P equipment of first mark detect.That is, standby root node is corresponding P equipment can detect whether P equipment corresponding to primary root node breaks down.
If after the P device fails of corresponding first mark of P equipment detection, the P equipment is according to two P Route establishment state between equipment and the PE equipment carries out troubleshooting.
For example, the P equipment carries out failure according to the Route establishment state between the P equipment and the PE equipment Processing includes：The P equipment determines to have established standby LSP with the PE equipment and the P equipment does not perform flux of multicast forwarding When, the P equipment sends flux of multicast by the standby LSP to the PE equipment.In this implementation, by standby Actively triggering performs the flux of multicast forwarding from the PE equipment to P equipment corresponding to root node, so as in primary root node pair During the P device fails answered, PE equipment can be caused to can switch to P equipment corresponding to standby root node and carry out connecing for flow Receive, improve the speed of fault recovery, effectively reduce business interruption time, improve the reliability of muticast data transmission.
For example, the Route establishment state according between the P equipment and the PE equipment carries out troubleshooting Including：When the P equipment determines not setting up standby LSP with the PE equipment, the P equipment is according to the described and PE equipment pair The Multicast Routing information answered, establish the standby LSP with the PE equipment rooms；The P equipment is by the standby LSP, to described PE equipment sends flux of multicast.In this implementation, after failure is detected, P equipment corresponding to standby root node is actively Triggering performs the LSP established between the PE equipment and performs flux of multicast forwarding, without PE equipment or control plane Extra processing is performed, thus, the speed of fault recovery is improved, effectively reduces business interruption time, improve multicast number According to the reliability of transmission.
For example, the Route establishment state according between the P equipment and the PE equipment carries out troubleshooting Including：The P equipment receives the first instruction sent from the PE equipment, and described first instructs for indicating the P equipment Carry out flux of multicast forwarding；The P equipment sends flux of multicast by the standby LSP to the PE equipment.In this realization In mode, two-way converting detection is established between PE equipment P equipment corresponding with the described first mark.
For example, the Route establishment state according between the P equipment and the PE equipment carries out troubleshooting Including：The P equipment receives the second instruction sent from the PE equipment, and described second instructs for indicating the P equipment The standby LSP is established between the PE equipment and the P equipment carries out flux of multicast forwarding；The P equipment is according to Multicast Routing information corresponding with the PE equipment, establish the standby LSP with the PE equipment rooms；The P equipment passes through described Standby LSP, flux of multicast is sent to the PE equipment.In this implementation, PE equipment and the described first corresponding P of mark Two-way converting detection is established between equipment.
It is single source scene flux of multicast model optimization schematic diagram provided in an embodiment of the present invention referring to Fig. 6 A and Fig. 6 B.Such as After Fig. 6 A, PE2 and PE3 selection identical primary root node, standby root node can select to establish or do not establish inter-area P2MP LSP.It is dual transmitting and receiving model that if PE2 and PE3, which establish inter-area P2MP LSP, Fig. 6 A,.PE2 and/or PE3 can receive flux of multicast from two inter-area P2MP LSP, and PE2 or PE3 can select to receive corresponding to main root The flux of multicast that inter-area P2MP LSP come.The reliability of this model is higher, once primary path inter-area P2MP lsp failures, PE2 or PE3 can switch the flux of multicast received on backup path inter-area P2MP LSP.Scheming In 6B, the P equipment as primary root node that PE2 and PE3 is selected is different, and PE2 establishes the inter-area P2MP for passing through P1 respectively LSP, PE3 establish the inter-area P2MP LSP by P2.Fig. 6 B can realize P1 and P2 load balancing.
It is a kind of PE equipment schematic diagrams provided in an embodiment of the present invention referring to Fig. 7.PE equipment provided in an embodiment of the present invention It can be used for performing the method shown in Fig. 3.
PE equipment 700 provided in an embodiment of the present invention includes：Receiving unit 701, the first via by preferred process unit 702, First mark determining unit 703, the first transmitting element 704 and the second transmitting element 705.
The receiving unit 701 is used to receive the first Multicast Routing information and the 2nd P equipment hair that the first P equipment is sent The the second Multicast Routing information sent, the first Multicast Routing information include the mark of the first P equipment, second Multicast Routing Information includes the mark of the 2nd P equipment.
The first via is used for the first Multicast Routing information and second multicast path by preferred process unit 702 By information route preferably, determine that route is primary Multicast Routing corresponding to the first Multicast Routing information.
The first mark determining unit 703 is used for first Multicast Routing according to corresponding to the primary Multicast Routing Information, determines the first mark, and described first to identify for identifying the first P equipment be primary root node, the primary root node pair Answer the primary Multicast Routing.
First transmitting element 704 is used for according to the mark of the first P equipment, to the first P equipment send with Multicast Routing information corresponding to the PE equipment, the Multicast Routing information corresponding with the PE equipment include the described first mark Know.
Second transmitting element 705 is used for the mark according to the 2nd P equipment, and institute is sent to the 2nd P equipment State Multicast Routing information corresponding with the PE equipment.
Alternatively, the PE equipment 700 also includes：Secondary route preferred process unit and the second mark determining unit.
The secondary route preferred process unit is used for the first Multicast Routing information and second Multicast Routing Information route preferably, determines that route is standby Multicast Routing corresponding to the second Multicast Routing information.
The second mark determining unit is used for the second Multicast Routing letter according to corresponding to the standby Multicast Routing Breath, determines the second mark, and described second to identify for identifying the 2nd P equipment be standby root node, the standby root node The corresponding standby Multicast Routing.
Alternatively, the PE equipment 700 also includes：Fault detection unit and fault processing unit.
The fault detection unit is used in the mark according to the first P equipment, to the first P equipment transmission and institute After stating Multicast Routing information corresponding to PE equipment, fault detect is carried out to the first P equipment.
The fault processing unit be used for determine the first P device fails after, according to the PE equipment with it is described Route establishment state between 2nd P equipment carries out troubleshooting.
If for example, built vertical label switching path LSP between the PE equipment and the 2nd P equipment, the LSP Described second mark between corresponding relation be present, then the fault processing unit be specifically used for according to described second mark and it is described Corresponding relation, determine to have established the LSP between the PE equipment and the 2nd P equipment；The fault processing unit is specific For determining that the 2nd P equipment carries out flux of multicast forwarding, the flux of multicast from the 2nd P equipment is received.
If for example, built vertical label switching path LSP between the PE equipment and the 2nd P equipment, the LSP Described second mark between corresponding relation be present, then the fault processing unit be specifically used for according to described second mark and it is described Corresponding relation, determine to have established the LSP between the PE equipment and the 2nd P equipment；The fault processing unit is specific For determining that the 2nd P equipment forwards without flux of multicast, send first to the 2nd P equipment and instruct, described first Instruct for indicating that the 2nd P equipment carries out flux of multicast forwarding, and receive the flux of multicast from the 2nd P equipment.
For example, not setting up LSP between the PE equipment and the 2nd P equipment, then the fault processing unit has Body be used for determine be not present with the described second corresponding LSP of mark, to the 2nd P equipment send second instruct, described second Instruct for indicating that the LSP and the 2nd P equipment are established between the 2nd P equipment and the PE equipment carries out multicast data flow Amount forwarding；The fault processing unit is specifically used for receiving the flux of multicast from the 2nd P equipment.
It is a kind of PE equipment schematic diagrams provided in an embodiment of the present invention referring to Fig. 8.PE equipment 800 can be used for performing Fig. 3 Described method, PE equipment 800 may include at least one processor 801, at least one network interface 802, memory 803 and extremely A few communication bus 804.The communication bus 804 is used to realize the connection communication between the component that PE equipment 800 includes. Processor 801 is used to perform the executable module stored in memory 803, such as computer program.The processor 801 can be CPU, memory 803 may include high-speed random access memory (Random Access Memory, RAM), it is also possible to also wrap Include non-labile memory (non-volatile memory), for example, at least a magnetic disk storage.Pass through at least one net Network interface realizes the communication connection between the system gateway and at least one other network element, can use internet, wide area network, sheet Earth mat, Metropolitan Area Network (MAN) etc..
The memory 803 is used to store batch processing instruction, and the processor 801 is used to call the memory 803 The programmed instruction of storage performs following operation：
Receive the second Multicast Routing letter that the first Multicast Routing information of the first P equipment transmission and the 2nd P equipment are sent Breath, the first Multicast Routing information include the mark of the first P equipment, and the second Multicast Routing information includes the 2nd P equipment Mark；
The first Multicast Routing information and the second Multicast Routing information route preferably, determine described first Route is primary Multicast Routing corresponding to Multicast Routing information；
The first Multicast Routing information according to corresponding to the primary Multicast Routing, determines the first mark, described first It is primary root node to identify for identifying the first P equipment, and the primary root node corresponds to the primary Multicast Routing；
According to the mark of the first P equipment, Multicast Routing corresponding with the PE equipment is sent to the first P equipment Information, the Multicast Routing information corresponding with the PE equipment include the described first mark；
According to the mark of the 2nd P equipment, sent to the 2nd P equipment described with corresponding group of the PE equipment Broadcast routing iinformation.
Alternatively, the processor 801 is additionally operable to：In the extension of the Multicast Routing information corresponding with the PE equipment First mark is carried in group attribute information, the extended community attribute information includes overall identification, the overall identification For carrying first mark.
Alternatively, the processor 801 is additionally operable to：The first Multicast Routing information and second Multicast Routing are believed Breath route preferably, determines that route is standby Multicast Routing corresponding to the second Multicast Routing information；According to described standby The second Multicast Routing information corresponding to Multicast Routing, the second mark is determined, described second identifies for identifying the 2nd P Equipment is standby root node, and the standby root node corresponds to the standby Multicast Routing.
Alternatively, the processor 801 is additionally operable to：In the mark according to the first P equipment, to the first P equipment After sending Multicast Routing information corresponding with the PE equipment, fault detect is carried out to the first P equipment；Determine described After one P device fails, entered according to the Route establishment state between the PE equipment and the P equipment of the 2nd P equipment the 2nd Row troubleshooting.
If for example, having established LSP between the PE equipment and the 2nd P equipment, the LSP marks with described second Corresponding relation between knowledge be present, the processor 801 is specifically used for according to the described second mark and the corresponding relation, it is determined that described The LSP has been established between PE equipment and the 2nd P equipment；
The processor 801 is specifically used for determining that the 2nd P equipment carries out flux of multicast forwarding, receives from described the The flux of multicast of two P equipment, or
The processor 801 is specifically used for determining that the 2nd P equipment forwards without flux of multicast, to the 2nd P Equipment sends the first instruction, and described first instructs for indicating that the 2nd P equipment carries out flux of multicast forwarding；
The processor 801 is specifically used for receiving the flux of multicast from the 2nd P equipment.
If for example, do not set up LSP between the PE equipment and the 2nd P equipment, it is determined that in the absence of with described the LSP corresponding to two marks, the processor 801 are specifically used for sending the second instruction, second instruction to the 2nd P equipment For indicating that the LSP and the 2nd P equipment are established between the 2nd P equipment and the PE equipment to carry out flux of multicast and turn Hair；The processor 801 is specifically used for receiving the flux of multicast from the 2nd P equipment.
It is a kind of P equipment schematic diagrams provided in an embodiment of the present invention referring to Fig. 9.The P equipment 900 can perform Fig. 5 institutes The method shown.The equipment 900 includes：
Receiving unit 901, for receive PE equipment transmission Multicast Routing information corresponding with the PE equipment, it is described with Multicast Routing information corresponding to the PE equipment includes the first mark, and described first identifies for identifying the P as primary root node Equipment, the primary root node are corresponding with primary Multicast Routing；
Judging unit 902, for judge the P equipment identify whether with described first mark match；
First processing units 903, for determining the mark and the described first mark of the P equipment in the judging unit 902 After knowing matching, then the P equipment establishes the P equipment and institute according to the Multicast Routing information corresponding with the PE equipment State the primary LSP between PE equipment.
Alternatively, the P equipment 900 also includes：Fault detection unit and fault processing unit.
Carried out between the fault detection unit P equipment identified for the P equipment and first mark two-way Forwarding detection.
The fault processing unit is used to detect the identified P equipment of first mark in the fault detection unit After breaking down, troubleshooting is carried out according to the Route establishment state between the P equipment and the PE equipment.
Alternatively, the P equipment 900 also includes：Second processing unit.
The second processing unit is used for the mark and the described first mark that the P equipment is determined in the judging unit 902 Know and mismatch, then according to the first tactful and described Multicast Routing information corresponding with the PE equipment pre-set, establish Standby LSP between the P equipment and the PE equipment, first strategy are used to indicate that the P equipment is established and the PE Standby LSP between equipment.
Alternatively, the P equipment 900 also includes：3rd processing unit and storage unit.
3rd processing unit is used for the mark that first mark and the P equipment are determined in the judging unit 902 Know and mismatch, then the P equipment is according to the second strategy pre-set, the standby LSP not established between the PE equipment, institute The second strategy is stated to be used to indicate the standby LSP that the P equipment is not established between the PE equipment.
The storage unit is used to preserve the Multicast Routing information corresponding with the PE equipment.
For example, the fault processing unit is specifically used for passing through the standby LSP, multicast is sent to the PE equipment Flow.
For example, the fault processing unit is specifically used for receiving the first instruction that the PE equipment is sent, described the One instructs for indicating that the P equipment carries out flux of multicast forwarding, and by the standby LSP, to the PE equipment transmission group Broadcast flow.
For example, the fault processing unit is specifically used for according to the Multicast Routing letter corresponding with the PE equipment Breath, the standby LSP with the PE equipment rooms is established, and by the standby LSP, flux of multicast is sent to the PE equipment.
For example, the fault processing unit is specifically used for receiving the second instruction that the PE equipment is sent, described the Two instruct for indicating that the LSP and the 2nd P equipment are established between the P equipment and the PE equipment carries out flux of multicast Forwarding, the LSP established between the P equipment and the PE equipment is the standby LSP；The fault processing unit is specific For by the standby LSP, flux of multicast to be sent to the PE equipment.
Figure 10 is a kind of P equipment schematic diagrams provided in an embodiment of the present invention.The P equipment 1000 can be the side shown in Fig. 5 P equipment in method.The P equipment 1000 may include at least one processor 1001, at least one network interface 1002, memory 1003 and at least one communication bus 1004.Processor 1001 is used to perform the executable module stored in memory 1003, example Such as computer program.Memory 1003 may include RAM, it is also possible to also including non-labile memory, for example, at least one Magnetic disk storage.Communication link between the system gateway and at least one other network element is realized by least one network interface Connect, internet, wide area network, LAN, Metropolitan Area Network (MAN) etc. can be used.
The memory 1003 is used to store batch processing instruction, and the processor 1001 is used to call the memory The programmed instruction of 1003 storages performs following operation：
The Multicast Routing information corresponding with the PE equipment that PE equipment is sent is received, it is described corresponding with the PE equipment Multicast Routing information includes the first mark, and described first identifies for identifying the P equipment as primary root node, the primary root node It is corresponding with primary Multicast Routing；
Judge the P equipment identify whether with described first mark match；
If it is determined that the mark of the P equipment matches with the described first mark, then according to described corresponding with the PE equipment Multicast Routing information, the primary LSP established between the P equipment and the PE equipment.
Alternatively, the processor 1001 is additionally operable to carry out two-way turn between the P equipment identified with the described first mark Hair detection；After the processor 1001 is additionally operable to detect the identified P device fails of first mark, according to described Route establishment state between P equipment and the PE equipment carries out troubleshooting.
Alternatively, the processor 1001 is additionally operable to determine that the mark of the P equipment mismatches with the described first mark, root According to the pre-set first tactful and described Multicast Routing information corresponding with the PE equipment, the P equipment and institute are established The standby LSP between PE equipment is stated, first strategy is for indicating that it is standby between the PE equipment that the P equipment is established LSP。
Alternatively, the processor 1001 is additionally operable to determine that the mark of first mark and the P equipment mismatches, root According to the second strategy pre-set, the standby LSP not established between the PE equipment, described second is tactful described for indicating The standby LSP that P equipment is not established between the PE equipment；The processor 1001 is additionally operable to preserve the described and PE equipment Corresponding Multicast Routing information.
For example, the processor 1001 is specifically used for：By the standby LSP, multicast is sent to the PE equipment Flow.
For example, the processor 1001 is specifically used for according to the Multicast Routing letter corresponding with the PE equipment Breath, establish the standby LSP with the PE equipment rooms；The processor 1001 is specifically used for passing through the standby LSP, to the PE Equipment sends flux of multicast.
The embodiment of the present invention additionally provides a kind of system for being used to return scene muticast data transmission more.The system may include The PE equipment that embodiment corresponding to Fig. 7 or Fig. 8 provides, and the P equipment that embodiment corresponding to Fig. 9 or Figure 10 provides.Herein not The 26S Proteasome Structure and Function of system is repeated again.
The introduction to device embodiment is more simple above, can refer to embodiment of the method and realizes that each device of the present invention is implemented Example.
The present invention program can described in the general context of computer executable instructions, such as Program unit.Usually, program unit includes performing particular task or realizes the routine of particular abstract data type, be program, right As, component, data structure etc..The present invention program can also be put into practice in a distributed computing environment, in these Distributed Calculations In environment, by performing task by communication network and connected remote processing devices.In a distributed computing environment, program Unit can be located in the local and remote computer-readable storage medium including storage device.
Each embodiment in this specification is described by the way of progressive, identical similar portion between each embodiment Divide mutually referring to what each embodiment stressed is the difference with other embodiments.It is real especially for device For applying example, because it is substantially similar to embodiment of the method, so describing fairly simple, related part is referring to embodiment of the method Part explanation.Device embodiment described above is only schematical, wherein described be used as separating component explanation Unit can be or may not be physically separate, can be as the part that unit is shown or may not be Physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Can be according to the actual needs Some or all of module therein is selected to realize the purpose of this embodiment scheme.Those of ordinary skill in the art are not paying In the case of going out creative work, you can to understand and implement.
The embodiment of the present invention is described in detail above, embodiment used herein is carried out to the present invention Illustrate, the explanation of above example is only intended to help to understand method and apparatus of the invention；Meanwhile for the one of this area As technical staff, according to the thought of the present invention, there will be changes in specific embodiments and applications, to sum up institute State, this specification content should not be construed as limiting the invention.

Claims (23)

  1. A kind of 1. method for being used to return scene muticast data transmission more, it is characterised in that methods described includes：
    Provider's edge PE equipment receives the first Multicast Routing information and the 2nd P equipment hair that first provider's P equipment is sent The the second Multicast Routing information sent, the first Multicast Routing information include the mark of the first P equipment, second Multicast Routing Information includes the mark of the 2nd P equipment；
    The PE equipment to the first Multicast Routing information and the second Multicast Routing information route preferably, determines institute It is primary Multicast Routing to state route corresponding to the first Multicast Routing information；
    The PE equipment the first Multicast Routing information according to corresponding to the primary Multicast Routing, determines the first mark, institute It is primary root node to state the first mark to be used to identify the first P equipment, and the primary root node corresponds to the primary Multicast Routing；
    The PE equipment is sent and corresponding group of the PE equipment according to the mark of the first P equipment to the first P equipment Routing iinformation is broadcast, the Multicast Routing information corresponding with the PE equipment includes the described first mark；
    The PE equipment is sent described corresponding with the PE equipment according to the mark of the 2nd P equipment to the 2nd P equipment Multicast Routing information.
  2. 2. according to the method for claim 1, it is characterised in that methods described also includes：
    The PE equipment to the first Multicast Routing information and the second Multicast Routing information route preferably, determines institute It is standby Multicast Routing to state route corresponding to the second Multicast Routing information；
    The PE equipment the second Multicast Routing information according to corresponding to the standby Multicast Routing, determines the second mark, institute It is standby root node to state the second mark to be used to identify the 2nd P equipment, and the standby root node corresponds to the standby multicast path By.
  3. 3. according to the method for claim 2, it is characterised in that the PE equipment according to the mark of the first P equipment, to After the first P equipment sends Multicast Routing information corresponding with the PE equipment, in addition to：
    The PE equipment carries out fault detect to the first P equipment；
    After the PE equipment determines the first P device fails, according between the PE equipment and the 2nd P equipment Route establishment state carries out troubleshooting.
  4. 4. according to the method for claim 3, it is characterised in that if built between the PE equipment and the 2nd P equipment Vertical label switching path LSP, corresponding relation be present between the LSP and second mark, then it is described according to the PE equipment with Route establishment state between the 2nd P equipment, which carries out troubleshooting, to be included：
    The PE equipment according to the described second mark and the corresponding relation, determine the PE equipment and the 2nd P equipment it Between established the LSP；
    The PE equipment determines that the 2nd P equipment carries out flux of multicast forwarding, receives the multicast data flow from the 2nd P equipment Amount, or
    The PE equipment determines that the 2nd P equipment forwards without flux of multicast, and sending first to the 2nd P equipment refers to Order, described first instructs for indicating that the 2nd P equipment carries out flux of multicast forwarding；
    The PE equipment receives the flux of multicast from the 2nd P equipment.
  5. 5. according to the method for claim 3, it is characterised in that do not set up between the PE equipment and the 2nd P equipment LSP, the Route establishment state according between the PE equipment and the 2nd P equipment, which carries out troubleshooting, to be included：
    The PE equipment determine to be not present with the described second corresponding LSP of mark, send second to the 2nd P equipment and instruct, Described second instructs for indicating that the LSP and the 2nd P equipment are established between the 2nd P equipment and the PE equipment to be entered Row flux of multicast forwards；
    The PE equipment receives the flux of multicast from the 2nd P equipment.
  6. A kind of 6. method for being used to return scene muticast data transmission more, it is characterised in that methods described includes：
    Provider's P equipment receives the Multicast Routing information corresponding with the PE equipment that provider's edge PE equipment is sent, described Multicast Routing information corresponding with the PE equipment includes the first mark, and described first identifies for identifying as primary root node P equipment, the primary root node are corresponding with primary Multicast Routing；
    The P equipment judge the P equipment identify whether with described first mark match；
    If the P equipment determine the P equipment mark and described first mark match, the P equipment according to described in and Multicast Routing information corresponding to the PE equipment, the primary label switched path established between the P equipment and the PE equipment LSP。
  7. 7. according to the method for claim 6, it is characterised in that methods described also includes：
    The P equipment and described first identifies progress two-way converting detection between identified P equipment；
    After the P equipment detects the identified P device fails of first mark, the P equipment is according to the P equipment Route establishment state between the PE equipment carries out troubleshooting.
  8. 8. according to the method for claim 7, it is characterised in that methods described also includes：
    If the P equipment determines that the mark of the P equipment and the described first mark mismatch, the P equipment is according in advance The the first tactful and described Multicast Routing information corresponding with the PE equipment set, establishes the P equipment and is set with the PE Standby LSP between standby, first strategy are used for the standby LSP for indicating that the P equipment is established between the PE equipment.
  9. 9. according to the method for claim 7, methods described also includes：
    If the P equipment determines that the mark of first mark and the P equipment mismatches, the P equipment is according in advance The second strategy set, the standby LSP not established between the PE equipment, second strategy are used to indicate the P equipment The standby LSP not established between the PE equipment；
    The P equipment preserves the Multicast Routing information corresponding with the PE equipment.
  10. 10. according to the method for claim 8, it is characterised in that the P equipment is according to the P equipment and the PE equipment Between Route establishment state carry out troubleshooting include：
    The P equipment sends flux of multicast by the standby LSP to the PE equipment；Or
    The P equipment receives the first instruction that the PE equipment is sent, and described first instructs for indicating that the P equipment carries out group Broadcast flow forwarding；
    The P equipment sends flux of multicast by the standby LSP to the PE equipment.
  11. 11. according to the method for claim 9, it is characterised in that the P equipment is according to the P equipment and the PE equipment Between Route establishment state carry out troubleshooting include：
    The P equipment is established standby with the PE equipment rooms according to the Multicast Routing information corresponding with the PE equipment LSP, and by the standby LSP, flux of multicast is sent to the PE equipment；Or
    The P equipment receives the second instruction that the PE equipment is sent, described second instruct for indicate the P equipment with it is described The LSP is established between PE equipment and the 2nd P equipment carries out flux of multicast forwarding, is built between the P equipment and the PE equipment The vertical LSP is the standby LSP；
    The P equipment sends flux of multicast by the standby LSP to the PE equipment.
  12. 12. a kind of provider edge PE equipment, it is characterised in that the PE equipment includes：
    Receiving unit, what the first Multicast Routing information and the 2nd P equipment for receiving the P equipment transmission of the first provider were sent Second Multicast Routing information, the first Multicast Routing information include the mark of the first P equipment, the second Multicast Routing information Include the mark of the 2nd P equipment；
    The first via is by preferred process unit, for the first Multicast Routing information and the second Multicast Routing information progress Route is preferred, determines that route is primary Multicast Routing corresponding to the first Multicast Routing information；
    First mark determining unit, for the first Multicast Routing information according to corresponding to the primary Multicast Routing, it is determined that First mark, described first identifies for identify the first P equipment to be primary root node, and the primary root node corresponds to described primary Multicast Routing；
    First transmitting element, for the mark according to the first P equipment, sent and the PE equipment to the first P equipment Corresponding Multicast Routing information, the Multicast Routing information corresponding with the PE equipment include the described first mark；
    Second transmitting element, for the mark according to the 2nd P equipment, the described and PE is sent to the 2nd P equipment Multicast Routing information corresponding to equipment.
  13. 13. PE equipment according to claim 12, it is characterised in that the PE equipment also includes：
    Secondary route preferred process unit, for the first Multicast Routing information and the second Multicast Routing information progress Route is preferred, determines that route is standby Multicast Routing corresponding to the second Multicast Routing information；
    Second mark determining unit, for the second Multicast Routing information according to corresponding to the standby Multicast Routing, it is determined that Second mark, described second identifies for identify the 2nd P equipment be standby root node, described in the standby root node correspondence Standby Multicast Routing.
  14. 14. PE equipment according to claim 13, it is characterised in that the PE equipment also includes：
    Fault detection unit, for carrying out fault detect to the first P equipment；
    Fault processing unit, for after the fault detection unit determines the first P device fails, according to the PE Route establishment state between equipment and the 2nd P equipment carries out troubleshooting.
  15. 15. equipment according to claim 14, it is characterised in that if between the PE equipment and the 2nd P equipment Label switching path LSP is established, corresponding relation be present between the LSP and second mark, then the fault processing unit tool Body is used for：
    According to the described second mark and the corresponding relation, determine to have established institute between the PE equipment and the 2nd P equipment State LSP；
    Determine that the 2nd P equipment carries out flux of multicast forwarding, receive the flux of multicast from the 2nd P equipment, or
    Determine that the 2nd P equipment forwards without flux of multicast, sending first to the 2nd P equipment instructs, and described first Instruct for indicating that the 2nd P equipment carries out flux of multicast forwarding, and receive the flux of multicast from the 2nd P equipment.
  16. 16. PE equipment according to claim 14, it is characterised in that between the PE equipment and the 2nd P equipment not LSP is established, then the fault processing unit is specifically used for：
    It is determined that it is not present and the described second corresponding LSP of mark, to the instruction of the 2nd P equipment transmission second, second finger Make for indicating that the LSP and the 2nd P equipment are established between the 2nd P equipment and the PE equipment carries out flux of multicast Forwarding；
    Receive the flux of multicast from the 2nd P equipment.
  17. 17. a kind of provider P equipment, it is characterised in that the P equipment includes：
    Receiving unit, the Multicast Routing information corresponding with the PE equipment sent for receiving provider's edge PE equipment, institute State Multicast Routing information corresponding with the PE equipment include first mark, described first identify for identify be used as primary root node P equipment, the primary root node is corresponding with primary Multicast Routing；
    Judging unit, for judge the P equipment identify whether with described first mark match；
    First processing units, after the mark for determining the P equipment in the judging unit matches with the described first mark, root According to the Multicast Routing information corresponding with the PE equipment, the primary label established between the P equipment and the PE equipment Switching path LSP.
  18. 18. P equipment according to claim 17, it is characterised in that the P equipment also includes：
    Fault detection unit, for carrying out two-way converting detection between the described first identified P equipment of mark；
    Fault processing unit, for detecting that event occurs for the identified P equipment of first mark in the fault detection unit After barrier, troubleshooting is carried out according to the Route establishment state between the P equipment and the PE equipment.
  19. 19. P equipment according to claim 18, it is characterised in that the P equipment also includes：
    Second processing unit, after the mark for determining the P equipment in the judging unit mismatches with the described first mark, According to the pre-set first tactful and described Multicast Routing information corresponding with the PE equipment, establish the P equipment with Standby LSP between the PE equipment, first strategy is for indicating that it is standby between the PE equipment that the P equipment is established Use LSP.
  20. 20. P equipment according to claim 18, it is characterised in that the P equipment also includes：
    3rd processing unit, for after the judging unit determines that first mark mismatches with the mark of the P equipment, According to the second strategy pre-set, the standby LSP not established between the PE equipment, second strategy is used to indicate institute State the standby LSP that P equipment is not established between the PE equipment；
    Storage unit, for preserving the Multicast Routing information corresponding with the PE equipment.
  21. 21. P equipment according to claim 19, it is characterised in that the fault processing unit is specifically used for：
    By the standby LSP, flux of multicast is sent to the PE equipment；Or
    The first instruction that the PE equipment is sent is received, described first instructs for indicating that the P equipment carries out flux of multicast turn Hair, and by the standby LSP, flux of multicast is sent to the PE equipment.
  22. 22. P equipment according to claim 20, it is characterised in that the fault processing unit is specifically used for：
    According to the Multicast Routing information corresponding with the PE equipment, the standby LSP with the PE equipment rooms is established, and pass through The standby LSP, flux of multicast is sent to the PE equipment；Or
    Receive the second instruction that the PE equipment is sent, described second instruct for indicate the P equipment and the PE equipment it Between establish the LSP and the 2nd P equipment and carry out flux of multicast forwarding, established between the P equipment and the PE equipment described LSP is the standby LSP；
    By the standby LSP, flux of multicast is sent to the PE equipment.
  23. 23. a kind of system for being used to return scene muticast data transmission more, it is characterised in that the system includes preceding claims The provider P described in provider's edge PE equipment and any one of preceding claims 17 to 22 described in 12 to 16 any one Equipment.
CN201510108981.6A 2015-03-12 2015-03-12 For returning the method and apparatus of scene muticast data transmission more Active CN104717143B (en)

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CN107612835A (en) * 2016-07-11 2018-01-19 中兴通讯股份有限公司 The notifying method of information, the generation method of forwarding entry and device
CN110278156B (en) * 2018-03-14 2020-12-22 华为技术有限公司 Multicast routing processing method, network equipment and route reflector
CN112615914B (en) * 2020-12-10 2022-07-05 中国电信股份有限公司江苏分公司 Method for transmitting multicast hot standby table entries by using border gateway protocol
EP4250675A4 (en) * 2020-12-21 2024-04-17 Huawei Tech Co Ltd Load sharing method and system, root node device, and leaf node device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101345678A (en) * 2008-08-27 2009-01-14 华为技术有限公司 Multicast communication method, system and multicast communication equipment
CN102014035A (en) * 2009-09-04 2011-04-13 中兴通讯股份有限公司 Networking method and device based on Ethernet ring
CN103117935A (en) * 2013-02-28 2013-05-22 杭州华三通信技术有限公司 Multicast data forwarding method and multicast data forwarding device applied to multi-homing networking
US8817683B2 (en) * 2009-05-28 2014-08-26 Alaxala Networks Corporation Network relay apparatus and inter-network relay method
CN104219073A (en) * 2013-05-31 2014-12-17 杭州华三通信技术有限公司 Message forwarding method and device in SPBM network

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101345678A (en) * 2008-08-27 2009-01-14 华为技术有限公司 Multicast communication method, system and multicast communication equipment
US8817683B2 (en) * 2009-05-28 2014-08-26 Alaxala Networks Corporation Network relay apparatus and inter-network relay method
CN102014035A (en) * 2009-09-04 2011-04-13 中兴通讯股份有限公司 Networking method and device based on Ethernet ring
CN103117935A (en) * 2013-02-28 2013-05-22 杭州华三通信技术有限公司 Multicast data forwarding method and multicast data forwarding device applied to multi-homing networking
CN104219073A (en) * 2013-05-31 2014-12-17 杭州华三通信技术有限公司 Message forwarding method and device in SPBM network

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