CN107786438A - Method, apparatus, system and the equipment of P2MP Multicast Tunnel protection - Google Patents
Method, apparatus, system and the equipment of P2MP Multicast Tunnel protection Download PDFInfo
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- CN107786438A CN107786438A CN201610796325.4A CN201610796325A CN107786438A CN 107786438 A CN107786438 A CN 107786438A CN 201610796325 A CN201610796325 A CN 201610796325A CN 107786438 A CN107786438 A CN 107786438A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/22—Alternate routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/72—Admission control; Resource allocation using reservation actions during connection setup
- H04L47/726—Reserving resources in multiple paths to be used simultaneously
- H04L47/728—Reserving resources in multiple paths to be used simultaneously for backup paths
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/80—Actions related to the user profile or the type of traffic
- H04L47/806—Broadcast or multicast traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/82—Miscellaneous aspects
- H04L47/825—Involving tunnels, e.g. MPLS
Abstract
The invention provides method, apparatus, system and the equipment of a kind of point-to-multipoint P2MP Multicast Tunnel protection, wherein this method includes：Whether break down in the first tunnel in detection multicast tree between the first bud node and the first root node；Detect break down when; on the second tunnel the first landing service is pushed to the first bud node; wherein; second tunnel is the tunnel that business forwarding is carried out by the second bud node in multicast tree; technical solution of the present invention is solved in correlation technique because P2MP protecting tunnels need to establish substantial amounts of Protection path; the problem of so as to increase operator's P2MP tunnel buildings and the cost safeguarded and waste bandwidth; and then the cost of foundation and the maintenance in operator P2MP tunnels is reduced, improve the effect of network robustness.
Description
Technical field
The present invention relates to the communications field, (Point to Multiple, is referred to as in particular to a kind of point-to-multipoint
P2MP) method, apparatus, system and the equipment of Multicast Tunnel protection.
Background technology
The characteristic in P2MP tunnels is that any multicast group same physics span in network only takes up a flow, is taken into full account
The bandwidth utilization efficiency of Packet Transport Network (Packet Optical Transport Network, referred to as PTN) network is more
Media broadcast multicast service gateway (Multimedia Broadcast Multicast Service Gateway, referred to as
MBGW) the indiscriminate ground of each multicast group business is all pushed to by P2MP multicast trees the Access Layer of each direct-connected base station
PTN device, by Access Layer PTN device as Internet igmpinternets (Internet Group Management
Protocol, abbreviation IGMP) requestor, interacted with lower extension base station by IGMP to decide whether to push flux of multicast and specifically push away
The flow of which multicast group given.
At present, conventional P2MP protecting tunnel groups have 1:1 and 1+1 protection two types, wherein 1:1 is two-way, configuration
The both ends of protection group all carry out pretection switch, and 1+1 protection only needs to be switched in the side of fault impact.P2MP tunnels are
The tunnel of the unidirectional more places in single source, it is using unidirectional 1+1 protection mode, reason often：First, P2MP tunnels are unidirectional tunnels.
Secondly, select and receive in destination node, realize simply, without APS (Automatic Protection Switch, letter
Referred to as APS) protocol interaction.Finally, it is high to receive performance of handoffs for choosing.1+1 guard method is：Between root node and pure leaf node
Two paths are established, when wherein a paths break down, the multicast industry of another paths push is selected in pure leaf node
Business.Therefore, it is required for establishing its corresponding protection path for every P2MP tunnel.The guard method needs to establish substantial amounts of protect
Road maintenance footpath, so bringing substantial amounts of foundation and maintenance cost for operator.
In addition, the P2MP protecting tunnels of prior art and point-to-point 1+1 (Point to Point 1+1, referred to as P2P 1
+ 1) unidirectional protection is similar, and the main thought of this method is primary and standby double hair, selects and receives in receiving terminal, as shown in figure 1,
Under normal circumstances, the stream for work of knocking off is selected, abandons the stream of protection.In the case of active link failure, the stream of protection is received in choosing.This side
The defects of method is：Due to using primary and standby double hair, so working and protecting link with the presence of two parts of streams.Setting
When standby normal operation does not have failure, unusual waste bandwidth.
In view of the above-mentioned problems, effective solution is not yet proposed in correlation technique.
The content of the invention
The embodiments of the invention provide method, apparatus, system and the equipment of a kind of P2MP Multicast Tunnel protection, at least to solve
Certainly because P2MP protecting tunnels need to establish substantial amounts of Protection path in correlation technique, add operator's P2MP tunnel buildings and
The problem of cost and waste bandwidth of maintenance.
According to one embodiment of present invention, there is provided a kind of method of P2MP Multicast Tunnel protection, including：Detect multicast
Whether break down in the first tunnel in tree between the first bud node and the first root node；Detect break down when,
The first landing service is pushed to the first bud node on two tunnels, wherein, second tunnel is by the multicast tree
Second bud node carries out the tunnel of business forwarding.
Alternatively, the first landing service is pushed to the first bud node on the second tunnel, including：Described first is fallen
Ground business is pushed to the second bud node by the second root node；First landing service is passed through into the second bud node
It is forwarded to the first bud node.
Alternatively, when first landing service is forwarded into the first bud node by the second bud node,
Methods described also includes：Second landing service is pushed to by the second bud node by second root node.
Alternatively, the first bud node is configured with P2MP protecting tunnel groups, wherein, the P2MP protecting tunnels group bag
Include：The operating path of the landing service of the first bud node and the Protection path protected to operating path；It is and/or described
Second bud node is configured with P2MP protecting tunnel groups, wherein, the P2MP protecting tunnels group includes：The second bud node falls
The operating path of ground business and the Protection path protected to operating path.
Alternatively, the first bud node and the second bud node are configured with the tunnel for carrying first landing service
With the tunnel of carrying forwarding service.
Alternatively, after pushing the first landing service to the first bud node on second tunnel, methods described
Also include：When detecting that first tunnel restoration is normal, by the landing service of the first bud node by second tunnel
Road switchback is to first tunnel.
According to another embodiment of the invention, there is provided a kind of device of P2MP Multicast Tunnel protection, including：Detect mould
Block, for detecting whether the first tunnel in multicast tree between the first bud node and the first root node breaks down；First push
Module, for detect break down when, on the second tunnel to the first bud node push the first landing service, its
In, second tunnel is the tunnel that business forwarding is carried out by the second bud node in the multicast tree.
Alternatively, first pushing module is additionally operable to first landing service being pushed to institute by the second root node
State the second bud node；First landing service is forwarded to the first bud node by the second bud node.
Alternatively, described device also includes：Second pushing module, for first landing service to be passed through into described
When two bud nodes are forwarded to the first bud node, the second landing service is pushed to described second by second root node
Bud node.
According to another embodiment of the present invention, there is provided a kind of system of P2MP Multicast Tunnel protection, including：In multicast tree
The first root node, the second root node, the first bud node and the second bud node, wherein, in the first bud node and described
The first tunnel is formed between one root node；Between second root node, the second bud node and the first bud node
The second tunnel is formed, wherein, in first tunnel fails, pushed away by second tunnel to the first bud node
Send the first landing service.
Alternatively, second root node, for first landing service to be pushed into the second bud node；It is described
Second bud node, for first landing service to be forwarded into the first bud node.
According to another embodiment of the present invention, there is provided a kind of equipment of point-to-multipoint P2MP Multicast Tunnel protection, including：
Processor, for detecting whether the first tunnel in multicast tree between the first bud node and the first root node breaks down；And
Detect break down when, select on the second tunnel to the first bud node push the first landing service；Communicator,
For pushing first landing service to the first bud node.
Alternatively, the processor is additionally operable to selection and first landing service is pushed into second by the second root node
Bud node；And first landing service is forwarded to the first bud node by selection by the second bud node.
According to another embodiment of the invention, a kind of storage medium is additionally provided.The storage medium is arranged to storage and used
In the program code for performing following steps：Whether the first tunnel in detection multicast tree between the first bud node and the first root node
Break down；Detect break down when, on the second tunnel to the first bud node push the first landing service, its
In, second tunnel is the tunnel that business forwarding is carried out by the second bud node in the multicast tree.
Alternatively, storage medium is also configured to the program code that storage is used to perform following steps：Described first is landed
Business is pushed to the second bud node by the second root node；First landing service is turned by the second bud node
It is dealt into the first bud node.
Alternatively, storage medium is also configured to the program code that storage is used to perform following steps：Fall by described first
When ground business is forwarded to the first bud node by the second bud node, industry is landed by second by second root node
Business is pushed to the second bud node.
Alternatively, storage medium is also configured to the program code that storage is used to perform following steps：When detecting described
When one tunnel restoration is normal, by the landing service of the first bud node by second tunnel switchback to first tunnel.
By the present invention, due in detection multicast tree the first tunnel whether break down and detect break down after
The first landing service is pushed to the first bud node on second tunnel, therefore, can be solved in correlation technique because P2MP tunnels are protected
Shield needs to establish substantial amounts of Protection path, so as to the cost and the skill of waste bandwidth that increase operator's P2MP tunnel buildings and safeguard
Art problem, reach the cost of the foundation and the maintenance that reduce operator P2MP tunnels, improve the effect of network robustness.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is P2MP networkings and business configuration schematic diagram in correlation technique；
Fig. 2 is network architecture diagram according to embodiments of the present invention；
Fig. 3 is the flow chart of the method for P2MP Multicast Tunnel protection according to embodiments of the present invention；
Fig. 4 is the schematic diagram of the bud node processing landing service of P2MP Multicast Tunnel protection according to embodiments of the present invention；
Fig. 5 is the flow chart (one) for the method protected according to the P2MP Multicast Tunnel of alternative embodiment of the present invention；
Fig. 6 is the flow chart (two) for the method protected according to the P2MP Multicast Tunnel of alternative embodiment of the present invention；
Fig. 7 is the schematic diagram of P2MP Multicast Tunnel protection after tunnel failure according to embodiments of the present invention；
Fig. 8 is the flow chart (three) for the method protected according to the P2MP Multicast Tunnel of alternative embodiment of the present invention；
Fig. 9 is the structured flowchart of the device of P2MP Multicast Tunnel protection according to embodiments of the present invention；
Figure 10 is the structured flowchart (one) for the device protected according to the P2MP Multicast Tunnel of alternative embodiment of the present invention；
Figure 11 is the structured flowchart (two) for the device protected according to the P2MP Multicast Tunnel of alternative embodiment of the present invention；
Figure 12 is the system schematic (one) of pure leaf node configuration P2MP protecting tunnels；
Figure 13 is the system schematic (two) of pure leaf node configuration P2MP protecting tunnels；
Figure 14 is the structured flowchart of the equipment of P2MP Multicast Tunnel protection according to embodiments of the present invention.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that do not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.
For the ease of understanding embodiments of the invention, below for the explanation of technical terms being related in embodiments of the invention
It is as follows：
The business of forwarding and landing refers to L3 multicast services, is specially：
Landing service refers to：It is pushed to the business of the base station of lower extension；
Forwarding service refers to：The base station of lower extension will not be pushed to and be to continue with being sent to the business of next node.
Embodiment 1
Fig. 2 is network architecture diagram according to embodiments of the present invention, as shown in Fig. 2 the network architecture includes：In multicast tree
First root node 22, the second root node 24, the first bud node 26 and the second bud node 28, wherein, in 26 points of the first bud section and
The first tunnel is formed between one root node 22；Formed between the second root node 24, the second bud node 28 and the first bud node 26
Second tunnel, wherein, in the first tunnel fails, industry is landed to the first bud node 26 push first by the second tunnel
Business.
Alternatively, the first root node 22, the second root node 24, the first bud node 26 and the second bud node 28 can be core
The PTN device of net and access network, but be not restricted to that this.
A kind of side for the P2MP Multicast Tunnel protection for running on the network architecture shown in Fig. 2 is provided in the present embodiment
Method, Fig. 3 is the flow chart of the method for P2MP Multicast Tunnel protection according to embodiments of the present invention, as shown in figure 3, the flow includes
Following steps：
Step S302, detects whether the first tunnel in multicast tree between the first bud node and the first root node occurs event
Barrier；
Step S304, detect break down when, on the second tunnel to the first bud node push the first landing service,
Wherein, the second tunnel is the tunnel that business forwarding is carried out by the second bud node in multicast tree.
In the present embodiment, the type of node can be divided into：Root node, pure branch node, pure leaf node and bud node,
Due to needing to configure P2MP tunnels on each node, therefore P2MP tunnel can include the role in following P2MP tunnels：It is root, pure
Branch, pure leaf and bud, wherein, above-mentioned includes main root and standby root；The pure branch refers to that the tunnel of the P2MP only carries forwarding
Business, do not carry landing service；The pure leaf refers to that the P2MP tunnels do not carry forwarding service, only carries landing service；
The bud refers to that the P2MP tunnels both carry forwarding service, carries landing service again；The leaf node refer to be configured with pure leaf or
The node in the P2MP tunnels of bud.
Alternatively, above-mentioned failure can refer to because the link problem such as Signal Fail or Signal Degrade causes the event of link
Barrier.It can specifically include：Fibercuts, optical module damage, optical fiber and the optical module aging of link.Multicast service can include falling
Ground business and forwarding service (the specific processing mode of landing service is as shown in Figure 4), that is, the multicast service for being pushed to bud node can
To be forwarded or directly landed, it is specially：Landing service data are sent directly on corresponding base station by bud node, will be turned
Sending service data forwarding is to adjacent node, further, since bud node is included into label and outgoing label, therefore, above-mentioned forwarding service
Actually the exchange of label is carried out and landing service is the stripping for having carried out label.
By above-mentioned steps, because whether the first tunnel breaks down and after detecting and breaking down in detection multicast tree
The first landing service is pushed to the first bud node on the second tunnel, therefore, can be solved in correlation technique due to P2MP tunnels
Protection needs to establish substantial amounts of Protection path, so as to increase operator P2MP tunnel buildings and the cost safeguarded and waste bandwidth
Technical problem, reach the cost of the foundation and the maintenance that reduce operator P2MP tunnels, improve the effect of network robustness.
In an optional embodiment, step S304 can be accomplished by the following way：First landing service is passed through
Second root node is pushed to the second bud node；First landing service is forwarded to the first bud node by the second bud node.At this
In embodiment, the characteristic of forwarding service is carried by using the P2MP tunnels of existing bud node in network so that P2MP multicasts
Protecting tunnel can be using existing tunnel as protection path, and without additionally establishing protection path, reaching reduces operator P2MP
The technique effect of the cost of foundation and the maintenance in tunnel.
In an optional embodiment, the first landing service is being forwarded to the first bud node by the second bud node
When, following operation can be performed：Second landing service is pushed to by the second bud node by the second root node.In the present embodiment
In, because root node can carry the business datum of multiple bud nodes and P2MP tunnels due to bud node both carry forwarding service
Landing service is carried again, it is achieved that the second root node is simultaneously to the first bud node and the second bud node push the first landing industry
Business or the second landing service, then reduce the quantity that protection path is established in network, reduce building for operator P2MP tunnels
Cost that is vertical and safeguarding.
In an optional embodiment, the first bud node is configured with P2MP protecting tunnel groups, wherein, P2MP protecting tunnels
Group includes：The operating path of the landing service of first bud node and the Protection path protected to operating path；And/or second
Bud node is configured with P2MP protecting tunnel groups, wherein, P2MP protecting tunnel groups include：The work of the landing service of second bud node
Path and the Protection path protected to operating path.In the present embodiment, due to the first tunnel and the second tunnel phase each other
The protection path of other side, and it is operating path that can select the short path of root node to bud node, another root node to the bud
The long path of node is Protection path, and therefore, after the first bud node configures P2MP protecting tunnel groups, operating path is the first tunnel
Road, Protection path are the second tunnel, and similarly, after the second bud node configures P2MP protecting tunnel groups, operating path is the second tunnel
Road, Protection path are the first tunnel, but be not restricted to that this.
In an optional embodiment, the first bud node and the second bud node are configured with above-mentioned first landing of carrying
The tunnel of business and the tunnel of carrying forwarding service.In the present embodiment, because the bud node carries the tunnel of landing service
With the tunnel of forwarding service, therefore, the P2MP tunnels being connected with the bud node can not only carry forwarding service but also can carry
Ground business.
In an optional embodiment, after pushing the first landing service to the first bud node on the second tunnel, also
It can perform：When detecting that the first tunnel restoration is normal, by the landing service of the first bud node by the second tunnel switchback to
One tunnel.In the present embodiment, after detecting that the first tunnel restoration is normal, without continuing push landing industry using the second tunnel
Business, therefore the landing service of the first bud node can so be made full use of into two tunnels by the second tunnel switchback to the first tunnel
The bandwidth in road and two tunnels can also form mutual protection, improves network robustness.
In an optional embodiment, Fig. 5 is the side protected according to the P2MP Multicast Tunnel of alternative embodiment of the present invention
The flow chart (one) of method, as shown in figure 5, the flow comprises the following steps：
Step S502, the first tunnel and the second tunnel disposed in multicast tree, multicast service is respectively from the first tunnel or the
Two tunnels are pushed to the first bud node, wherein, the tunnel that the first tunnel is formed between the first bud node and the first root node, the
The tunnel that two tunnels are formed between the second root node, the second bud node and the first bud node；
Step S504, it is operating path to select the first short tunnel of path, and the second tunnel for selecting path length is protection road
P2MP protection groups are simultaneously disposed in footpath on the first bud node for landing service；
Step S506, when detecting the working path failure, landing service selection is received from the Protection path, first bud
Node continues the forwarding service that forwarding receives.
By above-mentioned steps, P2MP protecting tunnels only protect landing service, and forwarding service is unaffected, therefore can be fortune
Seek business and save configuration and maintenance cost.
In an optional embodiment, Fig. 6 is the side protected according to the P2MP Multicast Tunnel of alternative embodiment of the present invention
The flow chart (two) of method, as shown in fig. 6, this method comprises the following steps：
Step S602, P2MP tunnels and multicast service are configured on A, B, C, D network element nodes, wherein, A nodes are first
Node 22, B economize on electricitys are the second root node 24, and C nodes are the first bud node 26, and D nodes are the second bud node 28；
Step S604, P2MP protecting tunnels group 1 and 2 is respectively configured on C and D nodes, wherein, in protection group 1, AC is
Operating path, corresponding Protection path is BDC, and in protection group 2, BD is operating path, and corresponding Protection path is ACD；
Step S606, when detecting the tunnel failure of A to C nodes, C nodes determine the working path failure of protection group 1, protect
The Protection path failure of shield group 2, and the Protection path of protection group 1 is switched to according to APS state machines, C nodes are received under B node push
The multicast service come.
In the present embodiment, in step S602, the business of forwarding can be carried due to bud node can carry landing again
Business, therefore, landing service using A nodes as in the multicast tree of root node, can be being pushed from A nodes to C nodes, can also
Forwarding service is forwarded to by D nodes by C nodes, D nodes receive the forwarding service and landed.Group using B node as root node
Broadcast tree it is identical as the multicast tree principle of root node with using A nodes, here is omitted.
Alternatively, for bud node, the business of forwarding needs to carry out Tag switching, and the business of landing needs to shell into row label
From, protect group behavior do not influence forwarding business.Any forwarding service so can be configured in work and Protection path, fully
Using bandwidth, improved P2MP protecting tunnels group also runs linear 1+1APS protocol state machines, can issue locking, force
Change, Manual Switch, support recoverable, switchback again is waited after the WTR times after tunnel stabilization during working path failure.
Alternatively, the tunnel failure of A to C nodes is the first root node 22 and the first bud as shown in Figure 7 in step S606
The failure in the tunnel between node.If in addition, B to D tunnel failure, the working path failure of protection group 2 is, it is necessary to be switched to guarantor
Road maintenance footpath, it is protected so as to the landing service of D nodes.The dual role of this seed bud node so that networking is more reasonable, protection
It is more abundant.
In an optional embodiment, Fig. 8 is the side protected according to the P2MP Multicast Tunnel of alternative embodiment of the present invention
The flow chart (three) of method, as shown in figure 8, this method is included beyond the step shown in Fig. 6, between step S604 and step S606
Also include：Step S802, D nodes receive that user issues switch instruction after, the landing service of D nodes is switched to protection group
2 Protection path.
In the present embodiment, although the landing service of D nodes is switched to the Protection path of protection group 2, D nodes are passed through
Forwarding service, instruction is not switched in path for BDC Business Stream by this to be influenceed, and continues to be pushed to C nodes.
Through the above description of the embodiments, those skilled in the art can be understood that according to above-mentioned implementation
The method of example can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but a lot
In the case of the former be more preferably embodiment.Based on such understanding, technical scheme is substantially in other words to existing
The part that technology contributes can be embodied in the form of software product, and the computer software product is stored in a storage
In medium (such as ROM/RAM, magnetic disc, CD), including some instructions to cause a station terminal equipment (can be mobile phone, calculate
Machine, server, or network equipment etc.) perform method described in each embodiment of the present invention.
Embodiment 2
A kind of device of P2MP Multicast Tunnel protection is additionally provided in the present embodiment, and the device is used to realize above-mentioned implementation
Example and preferred embodiment, repeating no more for explanation was carried out.As used below, term " module " can be realized pre-
Determine the combination of the software and/or hardware of function.Although device described by following examples is preferably realized with software,
Hardware, or the realization of the combination of software and hardware is also what may and be contemplated.
Fig. 9 is the structured flowchart of the device of P2MP Multicast Tunnel protection according to embodiments of the present invention, as shown in figure 9, should
Device includes：Detection module 92, for whether detecting the first tunnel in multicast tree between the first bud node and the first root node
Break down；First pushing module 94, for detect break down when, to the first bud node push the on the second tunnel
One landing service, wherein, the second tunnel is the tunnel that business forwarding is carried out by the second bud node in multicast tree.
In an optional embodiment, first pushing module 94 is additionally operable to the first landing service passing through second section
Point is pushed to the second bud node；First landing service is forwarded to the first bud node by the second bud node.
In an optional embodiment, Figure 10 is the dress protected according to the P2MP Multicast Tunnel of alternative embodiment of the present invention
The structured flowchart (one) put, as shown in Figure 10, the device is in addition to including all modules shown in Fig. 9, in addition to the second push mould
Block 1002, for when the first landing service is forwarded into the first bud node by the second bud node, being incited somebody to action by the second root node
Second landing service is pushed to the second bud node.
It should be noted that above-mentioned modules can be realized by software or hardware, for the latter, Ke Yitong
Cross in the following manner realization, but not limited to this：Above-mentioned module is respectively positioned in same processor；Or above-mentioned modules are with any
The form of combination is located in different processors respectively.
Embodiment 3
A kind of device of P2MP Multicast Tunnel protection is additionally provided in the present embodiment, and the device is used to realize above-mentioned implementation
Example and preferred embodiment, repeating no more for explanation was carried out.As used below, term " module " can be realized pre-
Determine the combination of the software and/or hardware of function.Although device described by following examples is preferably realized with software,
Hardware, or the realization of the combination of software and hardware is also what may and be contemplated.
Figure 11 is the structured flowchart (two) for the device protected according to the P2MP Multicast Tunnel of alternative embodiment of the present invention, is such as schemed
Shown in 11, the device includes：Configuration module 1102, for configuring P2MP tunnels and business, wherein P2MP tunnel type includes：
Root, pure branch, pure leaf, bud, and P2MP protecting tunnel groups are configured on selected leaf node；State monitoring module 1104,
For monitoring, indicating the working condition of node, the working condition in P2MP tunnels and produced when node or tunnel state occur abnormal
Raw alarm, wherein, the tunnel includes operating path and Protection path, and the status monitoring is by P2MP operation management maintainances
(Operational Administration and Maintenance, referred to as OAM) is responsible for；Switching control module 1106,
For the Link State fed back according to link state monitoring unit and chain alarming information is protected, the APS state machines of more new node,
Control node is switched.
It should be noted that above-mentioned modules can be realized by software or hardware, for the latter, Ke Yitong
Cross in the following manner realization, but not limited to this：Above-mentioned module is respectively positioned in same processor；Or above-mentioned modules are with any
The form of combination is located in different processors respectively.
Embodiment 4
A kind of system of P2MP Multicast Tunnel protection is additionally provided in the present embodiment, and the system includes：In multicast tree
First root node 22, the second root node 24, the first bud node 26 and the second bud node 28, wherein, in 26 points of the first bud section and
The first tunnel is formed between one root node 22；Formed between the second root node 24, the second bud node 28 and the first bud node 26
Second tunnel, wherein, in the first tunnel fails, the first landing service is pushed to the first bud node by the second tunnel.
In an optional embodiment, second root node 24, for the first landing service to be pushed into the second bud section
Point 28；The second bud node 28, for the first landing service to be forwarded into the first bud node 26.
The embodiment of the present invention can be the system of pure leaf node with compatible node, for example, as shown in Figure 12 and Figure 13 be
System, but be not restricted to that this.
In an optional embodiment, Figure 12 is the system schematic of pure leaf node configuration P2MP protecting tunnels
(1), as shown in figure 12, the system includes：A nodes 1202, B node 1204, C nodes 1206, D nodes 1208 and E nodes
1210, wherein, A nodes 1202 and B node 1204 are root nodes, and C nodes 1206, D nodes 1208 and E nodes 1210 are pure leaves
Node.
By being pushed to C nodes 1106, D each multicast service is indiscriminate with A nodes 1202 for the multicast tree of root
Node 1208 and E nodes 1210.The requestor of C nodes 1206, D nodes 1208 and E nodes 1210 as IGMP, the base station of lower extension
Whether the member selection as IGMP is added to the multicast group, and C nodes 1206, D nodes 1208 and E nodes 1210 decide whether again
Business is continued to be pushed to each base station, wherein, AC, AD, AE are operating path, configuration P2MP tunnels, in pure cotyledon child node
Configure landing service.
BC, BD, BE path are P2MP protection paths (Protection path), in C nodes 1206, D nodes 1208 and E nodes 1210
Upper configuration P2MP protecting tunnels.Form two multicast trees for root, business with A nodes 1202 and B node 1204 and pass through two
Multicast tree is indiscriminate to be pushed to C nodes 1206, D nodes 1208 and E nodes 1210.C nodes 1206, D nodes 1208 and E sections
The selection of point 1210 is received from operating path or Protection path is received.Under normal circumstances, the business for receiving operating path push is chosen, is lost
Abandon the business of Protection path push.
In an optional embodiment, Figure 13 is the system schematic of pure leaf node configuration P2MP protecting tunnels
(2), as shown in figure 13, the system includes：A nodes 1202, B node 1204, C nodes 1206, D nodes 1208 and E nodes
1210, wherein, A nodes 1202 and B node 1204 are root nodes, and C nodes 1206, D nodes 1208 and E nodes 1210 are pure leaves
Node.
When A nodes 1202 reach the P2MP tunnel fails of C nodes 1206, the node perceived of C nodes 1206 to failure,
Selection receives the business of push on Protection path.
Embodiment 5
Figure 14 is the structured flowchart of the equipment of P2MP Multicast Tunnel protection according to embodiments of the present invention, as shown in figure 14,
The protection equipment 140 includes：Processor 1402, for detecting in multicast tree first between the first bud node and the first root node
Whether break down in tunnel；And detect break down when, select on the second tunnel to the first bud node push first
Landing service；Communicator 1404, for pushing the first landing service to the first bud node.
In an optional embodiment, the processor 1402 is additionally operable to selection and lands industry by first by the second root node
Business is pushed to the second bud node；And the first landing service is forwarded to the first bud node by selection by the second bud node
Embodiment 6
Embodiments of the invention additionally provide a kind of storage medium.Alternatively, in the present embodiment, above-mentioned storage medium can
The program code for performing following steps to be arranged to storage to be used for：S1, detect the first bud node and first section in multicast tree
Whether break down in the first tunnel between point；S2, detect break down when, pushed away on the second tunnel to the first bud node
The first landing service is sent, wherein, the second tunnel is the tunnel that business forwarding is carried out by the second bud node in multicast tree.
Alternatively, storage medium is also configured to the program code that storage is used to perform following steps：Industry is landed by first
Business is pushed to the second bud node by the second root node；First landing service is forwarded to the first bud section by the second bud node
Point.
Alternatively, storage medium is also configured to the program code that storage is used to perform following steps：Landed by first
When business is forwarded to the first bud node by the second bud node, the second landing service is pushed to by the second bud by the second root node
Node.
Alternatively, storage medium is also configured to the program code that storage is used to perform following steps：When detecting first
When tunnel restoration is normal, by the landing service of the first bud node by the second tunnel switchback to the first tunnel.
Alternatively, in the present embodiment, above-mentioned storage medium can include but is not limited to：USB flash disk, read-only storage (Read-
Only Memory, referred to as ROM), it is random access memory (Random Access Memory, referred to as RAM), mobile hard
Disk, magnetic disc or CD etc. are various can be with the medium of store program codes.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general
Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and formed
Network on, alternatively, they can be realized with the program code that computing device can perform, it is thus possible to they are stored
Performed in the storage device by computing device, and in some cases, can be with different from shown in order execution herein
The step of going out or describing, they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or
Step is fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware and software combination.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (13)
- A kind of 1. method of point-to-multipoint P2MP Multicast Tunnel protection, it is characterised in that including：Whether break down in the first tunnel in detection multicast tree between the first bud node and the first root node；Detect break down when, on the second tunnel to the first bud node push the first landing service, wherein, it is described Second tunnel is the tunnel that business forwarding is carried out by the second bud node in the multicast tree.
- 2. according to the method for claim 1, it is characterised in that to the first bud node push first on the second tunnel Landing service, including：First landing service is pushed to the second bud node by the second root node；First landing service is forwarded to the first bud node by the second bud node.
- 3. according to the method for claim 2, it is characterised in that first landing service is being passed through into the second bud section When point is forwarded to the first bud node, methods described also includes：The second landing service is pushed by second root node To the second bud node.
- 4. according to the method for claim 1, it is characterised in thatThe first bud node is configured with P2MP protecting tunnel groups, wherein, the P2MP protecting tunnels group includes：First bud The operating path of the landing service of node and the Protection path protected to operating path；And/orThe second bud node is configured with P2MP protecting tunnel groups, wherein, the P2MP protecting tunnels group includes：Second bud The operating path of the landing service of node and the Protection path protected to operating path.
- 5. method according to any one of claim 1 to 4, it is characterised in that the first bud node and described second Bud node is configured with the tunnel of the tunnel for carrying first landing service and carrying forwarding service.
- 6. method according to claim 1 or 2, it is characterised in that to the first bud node on second tunnel After pushing the first landing service, methods described also includes：When detecting that first tunnel restoration is normal, by described first The landing service of bud node is by second tunnel switchback to first tunnel.
- A kind of 7. device of point-to-multipoint P2MP Multicast Tunnel protection, it is characterised in that including：Detection module, for detecting whether the first tunnel in multicast tree between the first bud node and the first root node occurs event Barrier；First pushing module, for detect break down when, on the second tunnel to the first bud node push first Landing service, wherein, second tunnel is the tunnel that business forwarding is carried out by the second bud node in the multicast tree.
- 8. device according to claim 7, it is characterised in that first pushing module is additionally operable to land described first Business is pushed to the second bud node by the second root node；First landing service is turned by the second bud node It is dealt into the first bud node.
- 9. device according to claim 8, it is characterised in that described device also includes：Second pushing module, for inciting somebody to action , will by second root node when first landing service is forwarded to the first bud node by the second bud node Second landing service is pushed to the second bud node.
- A kind of 10. system of point-to-multipoint P2MP Multicast Tunnel protection, it is characterised in that including：First section in multicast tree Point, the second root node, the first bud node and the second bud node, wherein,The first tunnel is formed between the first bud node and first root node；In second root node, described The second tunnel is formed between two bud nodes and the first bud node, wherein, in first tunnel fails, pass through institute State the second tunnel and push the first landing service to the first bud node.
- 11. system according to claim 10, it is characterised in that second root node, for described first to be landed Service propelling is to the second bud node；The second bud node, for first landing service to be forwarded into described first Bud node.
- A kind of 12. equipment of point-to-multipoint P2MP Multicast Tunnel protection, it is characterised in that including：Processor, for detecting whether the first tunnel in multicast tree between the first bud node and the first root node breaks down； And detect break down when, select on the second tunnel to the first bud node push the first landing service；Communicator, for pushing first landing service to the first bud node.
- 13. equipment according to claim 12, it is characterised in that the processor is additionally operable to selection and passes through the second root node First landing service is pushed to the second bud node；And selection lands industry by the second bud node by described first Business is forwarded to the first bud node.
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|---|---|---|---|
| CN201610796325.4A CN107786438B (en) | 2016-08-31 | 2016-08-31 | Method, apparatus, system and the equipment of P2MP Multicast Tunnel protection |
| PCT/CN2017/094664 WO2018040809A1 (en) | 2016-08-31 | 2017-07-27 | Method, apparatus, system and device for p2mp multicast tunnel protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610796325.4A CN107786438B (en) | 2016-08-31 | 2016-08-31 | Method, apparatus, system and the equipment of P2MP Multicast Tunnel protection |
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| CN107786438B CN107786438B (en) | 2019-07-19 |
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| WO (1) | WO2018040809A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108235259A (en) * | 2016-12-15 | 2018-06-29 | 中兴通讯股份有限公司 | The multicast service realizing method and its device of Packet Transport Network, communication system |
| CN114785732A (en) * | 2022-05-05 | 2022-07-22 | 烽火通信科技股份有限公司 | Method and system for P2MP multicast tunnel path protection |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588882A (en) * | 2004-09-23 | 2005-03-02 | 上海交通大学 | Protection rotation method for preset protective ring |
| CN101656651A (en) * | 2008-08-19 | 2010-02-24 | 华为技术有限公司 | Method and device for correlatively protecting traffic engineering tunnels |
| CN102546357A (en) * | 2010-12-09 | 2012-07-04 | 华为技术有限公司 | Message forwarding method and network device |
| WO2012092897A2 (en) * | 2012-02-10 | 2012-07-12 | 华为技术有限公司 | Packet transport network troubleshooting method, packet transport network node and packet transport network |
| US9450778B2 (en) * | 2009-02-25 | 2016-09-20 | Telefonaktiebolaget Lm Ericsson (Publ) | P2MP traffic protection in MPLS-TP ring topology |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9112713B2 (en) * | 2012-06-27 | 2015-08-18 | Cisco Technology, Inc. | System and method for efficient point-to-multi-point traffic engineering (P2MP-TE) path protection |
| CN103973536A (en) * | 2013-02-05 | 2014-08-06 | 中国移动通信集团公司 | Device and method for protection of point-to-multipoint looped network |
-
2016
- 2016-08-31 CN CN201610796325.4A patent/CN107786438B/en active Active
-
2017
- 2017-07-27 WO PCT/CN2017/094664 patent/WO2018040809A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588882A (en) * | 2004-09-23 | 2005-03-02 | 上海交通大学 | Protection rotation method for preset protective ring |
| CN101656651A (en) * | 2008-08-19 | 2010-02-24 | 华为技术有限公司 | Method and device for correlatively protecting traffic engineering tunnels |
| US9450778B2 (en) * | 2009-02-25 | 2016-09-20 | Telefonaktiebolaget Lm Ericsson (Publ) | P2MP traffic protection in MPLS-TP ring topology |
| CN102546357A (en) * | 2010-12-09 | 2012-07-04 | 华为技术有限公司 | Message forwarding method and network device |
| WO2012092897A2 (en) * | 2012-02-10 | 2012-07-12 | 华为技术有限公司 | Packet transport network troubleshooting method, packet transport network node and packet transport network |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108235259A (en) * | 2016-12-15 | 2018-06-29 | 中兴通讯股份有限公司 | The multicast service realizing method and its device of Packet Transport Network, communication system |
| CN108235259B (en) * | 2016-12-15 | 2021-11-12 | 中兴通讯股份有限公司 | Method and device for realizing multicast service of packet transport network and communication system |
| CN114785732A (en) * | 2022-05-05 | 2022-07-22 | 烽火通信科技股份有限公司 | Method and system for P2MP multicast tunnel path protection |
| CN114785732B (en) * | 2022-05-05 | 2023-08-11 | 烽火通信科技股份有限公司 | Method and system for P2MP multicast tunnel path protection |
Also Published As
| Publication number | Publication date |
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| WO2018040809A1 (en) | 2018-03-08 |
| CN107786438B (en) | 2019-07-19 |
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