CN104980362B - A kind of service tunnel method for building up and equipment - Google Patents
A kind of service tunnel method for building up and equipment Download PDFInfo
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- CN104980362B CN104980362B CN201410136102.6A CN201410136102A CN104980362B CN 104980362 B CN104980362 B CN 104980362B CN 201410136102 A CN201410136102 A CN 201410136102A CN 104980362 B CN104980362 B CN 104980362B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
Abstract
The invention discloses a kind of service tunnel method for building up and equipment, method disclosed by the invention includes receiving when the first edge equipment of first area is across needing to open a virtual private network business between at least one intermediate region and the second edge equipment of second area and the purpose edge device of the corresponding label routing of the vpn service obtaining tunnel requirements corresponding with the vpn service from the label routing and identifies；The purpose edge device matches the tunnel having built up in itself affiliated area using the tunnel requirements mark got, if the tunnel requirements mark and the matching result in any tunnel in the established tunnel meet preset condition, any tunnel is selected to carry the vpn service.Scheme provided by the embodiment of the present invention allows different business to select similar and different tunnel to carry in different domains, guarantees to be carried on correct tunnel after business enters corresponding domain.
Description
Technical field
The present invention relates to network technique field more particularly to a kind of service tunnel method for building up and equipment.
Background technique
The appearance of various powerful mobile terminal devices, so that data service is increasingly becoming the main business of mobile network
Type, while technology of eating dishes without rice or wine also continues to develop, bandwidth is also more and more wider, and there have been the growths that many big data quantities are applied for this:
Music, video, game and social networks etc..The tremendous growth of data traffic of these application drives.Lead to when 2G/3G
It is often used synchronous digital system (Synchronous Digital Hierarchy, SDH) carrying mobile service, but the frame of SDH
Structure can not scale support and flow bandwidth growth demand.Mobile carrying could both meet flow increasing using IP and ether technology
Long demand, while reducing the networking cost of operator.The whole network runs IP agreement (ALL IP) and has become the generally acknowledged trend of industry,
In long term evolution (Long Term Evolution, the LTE) epoch, very big change is had occurred in wireless network architecture, evolution
Packet-based core networks (Evolved Packet Core, EPC) have been put into very high position, and a domain EPC can manage many bases
It stands, in this way the service provider side of base station side gateway (Cell Site Gateway, the CSG) equipment of connection base station and connection EPC
Edge equipment (Provider Edge, PE) is not just scheduled in an Area (region) or AS (autonomous system), but base station and EPC it
Between need to establish S1 service connection, how bearer network preferably carries LTE S1 business, and industry is it is now recognized that seamless multi-protocols
Tag switching (Seamless Multiprotocol Label Switch, Seamless MPLS) scheme is a comparison optimization
Based Carrying Scheme.
Meanwhile with the sharp increase of mobile bearer network bandwidth and IPization carrying, many operators are in order to save networking
Cost carries fixed service and mobile service using same IP network, this makes the business of IP bearer network also more next
More complicated, type is more and more, and the access point of business also more and more flexibly, in this way also puts forward higher requirements IP bearer network.
The based Carrying Scheme that industry is commonly approved at present is exactly Seamless MPLS scheme, and this scheme business and transmission tunnel layer decouple,
Business only needs to be configured in access point, and O&M is fairly simple.But there is also one for current Seamless MPLS solution
A little problems are not able to satisfy the demand of operator, and following demand is exactly a typical demand:
As shown in Figure 1, the whole network is carried using Seamless MPLS solution, between UPE-1 and UPE-2 there are many
Business will carry, in order to make full use of the link bandwidth of network, user side PE (User-end Provider Edge,
UPE many tunnels) are established between network side PE (Network Provider Edge, NPE), it is desirable to different business energy
It is carried on different tunnels, and different in the tunnel quantity that not same area is established, so the mutual phase mapping of tunnel energy is needed, for figure
Network structure shown in 1, the then tunnel established between UPE-1 and UPE-2 can be following various situations:
The tunnel tunnel the 1-1------- tunnel 2-1----- 3-1
The tunnel tunnel the 1-2------- tunnel 2-1----- 3-1
The tunnel tunnel the 1-3------- tunnel 2-1----- 3-2
The tunnel tunnel the 1-4------- tunnel 2-1----- 3-2
The tunnel tunnel the 1-5------- tunnel 2-2----- 3-3
The tunnel tunnel the 1-6------- tunnel 2-2----- 3-3
The tunnel tunnel the 1-7------- tunnel 2-2----- 3-4
The tunnel tunnel the 1-8------- tunnel 2-2----- 3-4
Demand is formed for above-mentioned various tunnels, the solution that current Seamless MPLS is provided is as follows:
UPE-2 issues the label road a line circle gateway protocol (Border Gateway Protocol, BGP) to UPE-1
By establishing the end-to-end Border Gateway Protocol label switched path (End-to- of an arrival UPE-2 between UPE-1 and UPE-2
End Border gateway protocol Label Switched Path, E2EBGP LSP), similarly, UPE-1 also to
UPE-2 sends out a BGP label routing, and the BGP LSP of an arrival UPE-1, all business are established between UPE-2 and UPE-1
All iteration are on the BGP LSP of foundation, and then BGP LSP is carried on again on the tunnel of three segmentations, realize the end-to-end of business
Carrying.
But the scheme that the above-mentioned prior art provides can only for same label routing, such as UPE-1 (1.1.1.1)
Establish a BGP LSP.As soon as it will be apparent that a BGP LSP just in domain, can only be carried on a tunnel, therefore institute
Some business can only just select a tunnel to carry in a domain, cannot achieve different business using different tunnels come
Carrying.
Summary of the invention
The present invention provides a kind of service tunnel method for building up and equipment, and method and apparatus provided by the present invention solve existing
All business can only just select a tunnel to carry in a domain in technology, cannot achieve different business using different
Tunnel come the problem of carrying.
In a first aspect, the present invention provides a kind of service tunnel method for building up, this method comprises:
When first area first edge equipment across the second edge equipment of at least one intermediate region and second area it
Between when needing to open a virtual private network business, the purpose edge for receiving label routing corresponding with the vpn service is set
It is standby that tunnel requirements mark corresponding with the vpn service is obtained from the label routing；
The purpose edge device is matched using the tunnel requirements mark got to be had built up in itself affiliated area
Tunnel, if the matching result in tunnel requirements mark and any tunnel in the established tunnel meets default item
Part then selects any tunnel to carry the vpn service.
With reference to first aspect, in the first possible implementation, the purpose edge device utilizes the tunnel got
Road requires mark to match the tunnel having built up in itself affiliated area
The purpose edge device is identified using preset algorithm to the tunnel requirements and itself established tunnel
Mark carries out operation and obtains an operation result, needs to carry having built up for the vpn service according to operation result determination
Tunnel.
The possible implementation of with reference to first aspect the first, in the second possible implementation, the tunnel
It is required that be identified as business affinity property, then it is described to need to carry having built for the vpn service according to operation result determination
Vertical tunnel include: by the operation result and the purpose edge device storage tunnel management attributes match, and according to
The tunnel having built up for needing to carry the vpn service is determined with result.
The possible implementation of with reference to first aspect the first, in the third possible implementation, when the mesh
Edge device be the second edge equipment, then this method further include:
The second edge equipment obtains transfer tunnel from the label routing, and the transfer Tunnel iteration is formed institute
First edge equipment is stated to the complete business tunnel of the second edge equipment, wherein the transfer tunnel is the label road
The tunnel selected by other edge devices of middle carrying.
The third possible implementation with reference to first aspect, in the fourth possible implementation, this method is also
Include:
When the second edge equipment receives the vpn service routing that the first edge equipment is sent, from the VPN industry
The tunnel requirements mark is obtained in business routing；
It identifies tunnel requirements mark corresponding with tunnel has been established using the tunnel requirements to be matched, if with described
Tunnel requirements mark tunnel requirements mark corresponding with any tunnel is identical, then sends the VPN using the determining tunnel of matching
Business.
Second aspect, the present invention also provides another service tunnel method for building up, this method comprises:
When first area first edge equipment across the second edge equipment of at least one intermediate region and second area it
Between when needing to open a virtual private network business, the first edge equipment will tunnel requirements corresponding with the vpn service
Mark is added in the corresponding label routing of the vpn service；
The label routing is forwarded, so that the edge device for receiving the label routing is obtained from the label routing
The tunnel requirements mark, and the edge device for receiving the label routing is made to utilize the matching itself of tunnel requirements mark
The tunnel being had built up in affiliated area, if tunnel requirements mark and any tunnel in the established tunnel
Matching result meets preset condition, then any tunnel is selected to carry the vpn service.
The third aspect, the present invention provide a kind of edge device, which includes:
Acquiring unit, when second side of the first edge equipment across at least one intermediate region and second area of first area
When needing to open a virtual private network business between edge equipment, for receiving label corresponding with vpn service road
By, and tunnel requirements mark corresponding with the vpn service is obtained from the label routing；
Tunnel selecting unit is had built up for being matched in itself affiliated area using the tunnel requirements mark got
Tunnel, if the matching result in tunnel requirements mark and any tunnel in the established tunnel meets default item
Part then selects any tunnel to carry the vpn service.
In conjunction with the third aspect, in the first possible implementation, the tunnel selecting unit is also used to using default
Algorithm the tunnel requirements are identified and the mark in itself established tunnel carry out operation obtain an operation result, according to institute
It states operation result and determines the tunnel having built up for needing to carry the vpn service.
In conjunction with the first possible implementation of the third aspect, in the second possible implementation, the tunnel
It is required that being identified as business affinity property, the tunnel selecting unit is also used to the tunneltron of the operation result and itself storage
Attributes match is managed, and determines the tunnel having built up for needing to carry the vpn service according to matching result.
In conjunction with the first possible implementation of the third aspect, in the third possible implementation, the edge
Equipment is the second edge equipment, the edge device further include:
Tunnel iteration unit is formed the transfer Tunnel iteration for obtaining transfer tunnel from the label routing
The first edge equipment is to the complete business tunnel of the second edge equipment, wherein the transfer tunnel is the label
The tunnel of other edge devices selection carried in routing.
In conjunction with the third possible implementation of the third aspect, in the fourth possible implementation, which is set
It is standby further include:
Business matching unit, for when receiving the vpn service routing that the first edge equipment is sent, from described
The tunnel requirements mark is obtained in vpn service routing；Tunnel corresponding with tunnel has been established is identified using the tunnel requirements
It is required that mark is matched, and if the tunnel requirements to identify corresponding with any tunnel tunnel requirements mark identical, it is sharp
The vpn service is sent with the determining tunnel of matching.
Fourth aspect, the present invention also provides another edge device, the edge device is the first side of first area
Edge equipment, wherein when the first edge equipment is across between at least one intermediate region and the second edge equipment of second area
When needing to open a virtual private network business, the first edge equipment includes:
Adding unit is identified, for tunnel requirements corresponding with vpn service mark to be added to the vpn service pair
In the label routing answered；
Retransmission unit, for forwarding the label routing, so that receiving the edge device of the label routing from described
The tunnel requirements mark is obtained in label routing, and wants the edge device for receiving the label routing using the tunnel
Mark is asked to match the tunnel having built up in itself affiliated area, if tunnel requirements mark and the established tunnel
In the matching result in any tunnel meet preset condition, then select any tunnel to carry the vpn service.
5th aspect, the present invention also provides a kind of service tunnels to establish device, which establishes device and include:
Memory, the memory include computer program；
The processor being connected with the memory, the processor for executing the computer program, thereby executing with
Lower operation:
When first area first edge equipment across the second edge equipment of at least one intermediate region and second area it
Between when needing to open a virtual private network business, receive label routing corresponding with the vpn service, and from the mark
Tunnel requirements mark corresponding with the vpn service is obtained in label routing；Wherein, the tunnel requirements identify and different VPN industry
Business corresponds to, and is used to indicate requirement of the different business to tunnel；
The tunnel having built up in itself affiliated area is matched using the tunnel requirements mark got, if the tunnel
It is required that mark and the matching result in any tunnel in the established tunnel meet preset condition, then any tunnel is selected
Road carries the vpn service.
In conjunction with the 5th aspect, in the first possible implementation, the processor is also used to execute following operation:
The tunnel requirements are identified using preset algorithm and the mark in itself established tunnel carries out operation and obtains
One operation result determines the tunnel having built up for needing to carry the vpn service according to the operation result.
In conjunction with the first possible implementation of the 5th aspect, in the second possible implementation, the tunnel
It is required that being identified as business affinity property, the processor is also used to: by the tunnel management category of the operation result and itself storage
Property matching, and determined according to matching result and need to carry the tunnel having built up of the vpn service.
In conjunction with the first possible implementation of the 5th aspect, in the third possible implementation, the business
Device is established for the second edge equipment in tunnel, and the processor is also used to:
Transfer tunnel is obtained from the label routing, and the transfer Tunnel iteration is formed into the first edge equipment and is arrived
The complete business tunnel of the second edge equipment, wherein the transfer tunnel is other sides carried in the label routing
The tunnel of edge equipment selection.
In conjunction with the third possible implementation of the 5th aspect, in the fourth possible implementation, the processing
Device is also used to:
When receiving the vpn service routing that the first edge equipment is sent, institute is obtained from vpn service routing
State tunnel requirements mark；It identifies tunnel requirements mark corresponding with tunnel has been established using the tunnel requirements to be matched, such as
Fruit and tunnel requirements mark tunnel requirements mark corresponding with any tunnel are identical, then are sent using the determining tunnel of matching
The vpn service.
6th aspect, the present invention also provides a kind of first edge equipment, which includes:
Memory, the memory include computer program；
The processor being connected with the memory, the processor for executing the computer program, thereby executing with
Lower operation:
When the first edge equipment of first area is set across the second edge of at least one intermediate region and second area
When needing to open a virtual private network business between standby, tunnel requirements corresponding with vpn service mark is added to institute
It states in the corresponding label routing of vpn service；Wherein, the tunnel requirements mark is corresponding from different vpn services, is used to indicate difference
Requirement of the business to tunnel；
The label routing is forwarded, so that the edge device for receiving the label routing is obtained from the label routing
The tunnel requirements mark, and the edge device for receiving the label routing is made to utilize the matching itself of tunnel requirements mark
The tunnel being had built up in affiliated area, if tunnel requirements mark and any tunnel in the established tunnel
Matching result meets preset condition, then any tunnel is selected to carry the vpn service.
One or two of above-mentioned technical proposal at least has the following technical effect that
The above method provided in an embodiment of the present invention, initiation Virtual Private Network (Virtual Private Network,
VPN) the edge device of business, the requirement for different business to tunnel distribute corresponding tunnel requirements to different business and identify,
And carry tunnel requirements mark in the corresponding label routing of business, then make the side for receiving the label routing
Edge equipment can be identified as the tunnel that the vpn service selection needs according to the tunnel requirements.So institute of the embodiment of the present invention
The method of offer allows different business to select similar and different tunnel to carry in different domains, and tunnel can be
It is dynamically mapped between different domains, guarantees to be carried on correct tunnel after business enters corresponding domain.To
So that different business can greatly promote network link bandwidth availability ratio with flexible choice tunnel.
Detailed description of the invention
Fig. 1 is that the whole network is illustrated using Seamless MPLS solution come the network structure of bearer service in the prior art
Figure；
Fig. 2 is a kind of flow diagram for service tunnel method for building up that the embodiment of the present invention one provides；
Fig. 3 provides scheme applicable network topological diagram by the embodiment of the present invention two and embodiment three；
Fig. 4 is a kind of flow diagram of service tunnel method for building up provided by Embodiment 2 of the present invention；
Fig. 5 is a kind of flow diagram for service tunnel method for building up that the embodiment of the present invention three provides；
Fig. 6 provides scheme applicable network topological diagram by the embodiment of the present invention four and embodiment five；
Fig. 7 is a kind of flow diagram for service tunnel method for building up that the embodiment of the present invention four provides；
Fig. 8 is a kind of flow diagram for service tunnel method for building up that the embodiment of the present invention five provides；
Fig. 9 is a kind of flow diagram for service tunnel method for building up that the embodiment of the present invention six provides；
Figure 10 is a kind of structural schematic diagram for edge device that the embodiment of the present invention seven provides；
Figure 11 is a kind of structural schematic diagram for edge device that the embodiment of the present invention eight provides；
Figure 12 is the structural schematic diagram that a kind of service tunnel that the embodiment of the present invention eight provides establishes device.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
In order to solve the problems in the prior art, the present invention provides a kind of service tunnel method for building up, this method comprises:
When first area first edge equipment across the second edge equipment of at least one intermediate region and second area it
Between when needing to open a virtual private network business, the purpose edge for receiving label routing corresponding with the vpn service is set
It is standby that tunnel requirements mark corresponding with the vpn service is obtained from the label routing；
The purpose edge device is matched using the tunnel requirements mark got to be had built up in itself affiliated area
Tunnel, if the matching result in tunnel requirements mark and any tunnel in the established tunnel meets default item
Part then selects any tunnel to carry the vpn service.
The above method provided in an embodiment of the present invention initiates the edge device of vpn service, for different business to tunnel
It is identified it is required that distributing corresponding tunnel requirements to different business, and tunnel requirements mark is carried in the corresponding mark of business
In label routing, the edge device for receiving the label routing is then enabled to be identified as according to the tunnel requirements described
The tunnel that vpn service selection needs.So method provided by the embodiment of the present invention, so that different business can in different domains
It is carried with selecting similar and different tunnel, while tunnel can dynamically be mapped among different domains, be guaranteed in industry
After business enters corresponding domain, it can be carried on correct tunnel.So that different business can be with flexible choice tunnel, greatly
It is big to promote network link bandwidth availability ratio.
In order to become apparent from method provided by the detailed description embodiment of the present invention, below in conjunction with Figure of description to this hair
Method provided by bright embodiment is further described in detail, and is specifically included:
Embodiment one
As shown in Fig. 2, the embodiment of the present invention provides a kind of service tunnel method for building up, this method specifically includes step:
Step 201, when second side of the first edge equipment across at least one intermediate region and second area of first area
When needing to open a virtual private network business between edge equipment, the mesh of label routing corresponding with the vpn service is received
Edge device corresponding with vpn service tunnel requirements mark is obtained from the label routing；
In embodiments of the present invention, when the edge device (can be UPE) for initiating vpn service is directed to the spy of different business
Point distributes different label routings to different vpn services, enable receive the edge device of the label routing according to
The label routing goes to the tunnel for selecting the demand for meeting each vpn service to carry each vpn service.
The region is the network equipment of an independent network management subset, in particular to setting quantity and specific position
Network's coverage area combine the region to be formed.Such as in network structure shown in Fig. 3, first service provider core network side
Edge equipment (notework faceing provider edge, NPE identify NPE-1), second service provider core network side
Network's coverage area that edge equipment (NPE-2) and the first user oriented provide service edge equipment (UPE-1), which combines, to be formed
Region 1.Region 2 is made of NPE-1, NPE-2, NPE-3 and NPE-4, and the 3rd region is formed by NPE-3, NPE-4 and UPE-2.?
The edge device being previously mentioned in the embodiment of the present invention refers to, while providing the equipment of service for two regions.Wherein, each area
Domain suffers from the independent network topology database in the region and network topological diagram.For each region, network topology structure
Outside region be it is sightless, equally, router in each zone is also unknowable to its remaining overseas network structure.
Step 202, the purpose edge device is matched in itself affiliated area using the tunnel requirements mark got
The tunnel being set up, if tunnel requirements mark and the matching result in any tunnel in the established tunnel meet
Preset condition then selects any tunnel to carry the vpn service.
In embodiments of the present invention, when second edge equipment receives the label routing, second edge equipment
By label routing pass through edge device determine first edge equipment to second edge equipment fullpath.So working as
The edge device is second edge equipment, and second edge equipment also needs to determine first edge according to the label routing received
Equipment to the complete business tunnel of second edge equipment, so this method comprises:
The second edge equipment obtains transfer tunnel from the label routing, and the transfer Tunnel iteration is formed institute
First edge equipment is stated to the complete business tunnel of the second edge equipment, wherein the transfer tunnel is the label road
The tunnel selected by other edge devices of middle carrying.
Further, it because first edge equipment and the second equipment are established after service tunnel, needs to utilize the business established
Tunnel carries corresponding vpn service, so second edge equipment also needs to build the service tunnel of foundation with corresponding vpn service
Found corresponding relationship, thus second edge equipment according to label routing determine first edge equipment to second edge equipment tunnel
Road, further includes:
When the second edge equipment receives the vpn service routing that the first edge equipment is sent, from the VPN industry
The tunnel requirements mark is obtained in business routing；
It identifies tunnel requirements mark corresponding with tunnel has been established using the tunnel requirements to be matched, if with described
Tunnel requirements mark tunnel requirements mark corresponding with any tunnel is identical, then sends the VPN using the determining tunnel of matching
Business.
In present example, specifically can be for tunnel requirements marks is accomplished in several ways, and mentions below
It is described in detail for several optional modes, specifically:
Firstly, because different edge devices may distinguish the tunnel of different condition using different marks, so generally
In the case of edge device get the tunnel requirements in label routing mark after, need to determine the tunnel according to certain algorithm
Road requires to identify itself corresponding that established tunnel, so utilizing acquisition after edge device receives label routing
To tunnel requirements mark match the tunnel that has built up in itself affiliated area and include:
The purpose edge device is identified using preset algorithm to the tunnel requirements and itself established tunnel
Mark carries out operation and obtains an operation result, needs to carry having built up for the vpn service according to operation result determination
Tunnel.
Wherein, the tunnel requirements mark wishes that the Tunnel Identifier of carrying is corresponding with the vpn service.
Mode one, when the tunnel requirements are identified as business affinity property, the edge device is by operation result and itself
The mark that tunnel has been established carries out matched specific implementation and may is that the tunnel requirements are identified as business affinity property,
It is then described to determine that needing to carry the tunnel of the vpn service having built up includes: by the operation according to the operation result
As a result the tunnel management attributes match stored with the purpose edge device, and determined and needed described in carrying according to matching result
The tunnel of vpn service having built up.Wherein, the business affinity property is calculated using RFC3209, then utilizes operation result
Go matching tunnel management group.
Topology network architecture according to Fig.3, is provided for the embodiments of the invention tunnel selecting method and makees further
Explanation, wherein tunnel used in each domain can be TE LSP, first node of 3 sections of TE LSP in respective AREA in the following figure
Respectively UPE-1, NPE-1, NPE-3.
If BGP label routing publication direction: UPE-2 → NPE-3 → NPE-1 → UPE-1 (be also possible to UPE-2 →
NPE-4→NPE-2→UPE-1)。
VPN routing publication: UPE-2 → UPE-1.
It is routed for VPN, Router Reflector (Route Reflector, RR) of the NPE as adjacent UPE, between NPE again
The relationship of RR and Client each other, so VPN routing, which can be reflected from distal end UPE through multiple RR, reaches local UPE, it may be assumed that as follows
In scene, the VPN routing of UPE-2 can reach UPE-1.
Embodiment two
Wherein, VPN1 triggering is opened between UPE-2 and UPE-1 to establish BGP LSP and select the processing side in each section of tunnel
Method includes (as shown in Figure 4):
Step 401, UPE-2 exemplary configuration business affinity property X1, UPE-2 where VPN1 is issued to NPE-3 carries industry
The BGP label routing of business affinity property X1；
Step 402, NPE-3 is carried affine in the BGP label routing for receiving UPE-2 publication according to the label routing
Attribute removes to match the tunnel management attribute on the TE tunnel in the equipment, further finds corresponding TE LSP: tunnel 3-1；
Step 403, NPE-3 by BGP label route in next-hop be revised as NPE-3, do not change the affine category of original business
Property, it is preceding to be sent to NPE-1；
Step 404, NPE-1 is carried affine in the BGP label routing for receiving NPE-3 publication according to the label routing
Attribute removes to match the tunnel management attribute on the TE tunnel in the equipment, further finds corresponding TE LSP: tunnel 2-1；
Step 405, NPE-1 by BGP label route in next-hop be revised as NPE-1, do not change the affine category of original business
Property, it is preceding to be sent to UPE-1；
Step 406, UPE-1 is carried affine in the BGP label routing for receiving NPE-1 publication according to the label routing
Attribute removes to match the tunnel management attribute on the TE tunnel in the equipment, further finds corresponding TE LSP: tunnel 1-1；
To this step, establish UPE-1 to UPE-2 BGP LSP (such as: BGP LSP1), from left to right successively iterate to tunnel 1-
1, tunnel 2-1, tunnel 3-1；
Step 407, the example where VPN1 issues VPN route to UPE-1 from UPE-2, which also carries parent
With attribute X1, BGP LSP1 is iterated in UPE-1.
In this embodiment, for carrying business affinity property (the Service Affinity in the label routing
Property Attribute) specific implementation can be accomplished by the following way,
A, a bgp attribute is increased newly, newly-increased bgp attribute is used to indicate the business affinity property of vpn service.
In this embodiment, business affinity property is an optional transitive property, and 3 fields in attribute Value contain
Justice is consistent with RFC3209, but length is without limitation.The attribute can be routed in company with BGP label and VPN routes a starting
It send.The various scenes for needing BGP routing to carry the attribute can be used in.
Wherein, the processing of each field of business affinity property is as follows:
Include-any=Affinity&Mask
(- Include-any) &Mask, i.e. Include-any are negated Exclude-any=by Mask
Include-all=0x0
B increases a LDP TLV:Service Affinity Property TLV (business affinity property TLV) newly:
It include type/length/value (Type/Length/Value, the letter of many different purposes in LDP Mapping message
Claim: TLV):
Service Affinity Property TLV, the TLV are issued together in company with LDP Mapping message, carrying
Content is business affinity property.
The LDP extension of the embodiment of the present invention devises the business affinity property TLV, is arranged for L2VPN business
Business affinity property (Service Affinity Property), specific format is as follows:
The U-bit of the TLV is set as 1, when receiving the TLV, but can not identify, ignores and does not handle.
The F-bit of the TLV is set as 1, the bit only use when U-bit is set as 1.1 expression is set as to receive
Even if the TLV, can not identify, the TLV is also forwarded forward.
The setting and processing of above-mentioned business affinity property, only the present invention program a special case, it is intended to illustrate the present invention
The exploitativeness of scheme, the limitation present invention does not only have this realization means.
Below provided by Fig. 1 for network structure, to utilizing business affinity property and management in the embodiment of the present invention
Group attributes match realizes that the method specific implementation of tunnel selection may is that
Firstly, adding affinity property in the attribute list of VPN label routing, affinity property can be arranged to following lattice
Formula: service affinity property properties [mask mask-value]；
The corresponding matching that realize management group attribute Yu the affinity property, then it is corresponding also to need receiving label road
By edge device management group attribute in add corresponding match attribute, which can be set are as follows: tunnel
administrative group[value]。
Topology network architecture according to Fig.3, in embodiment two, opens VPN1, UPE-2 between UPE-2 and UPE-1
The exemplary configuration business affinity property X1 where VPN1, if X1 concrete configuration are as follows: service affinity property
10011mask 11101；
In the NPE-3 management group attribute for receiving label routing, the management group of tunnel 3-1 is identified as 10010, in addition, tunnel
The management group of road 3-2 is 10101.Then NPE-3 selects the detailed process in tunnel may is that according to X1
Overall matching rule is: corresponding for 1 position in the result of administrative group&mask
Correspondence position in Affinity&mask result is also 1, then it is assumed that matching.
Such as:
NPE-3 receives BGP label routing from UPE-2 and carries affinity property, calculates on NPE-3:
Business affinity property is calculated first: because of Affinity=10011；MASK=11101；Then Affinity&mask
=10001；
Secondly calculating can be with matched tunnel:
For tunnel 3-2, administrative group=10101, (mask is received from UPE-2:
11101)；Then corresponding administrative group&mask=10101&11101=10101, in this result
One, third and four or five these three positions are 1, so according to rule, it is desirable that three positions of affinity property also will be 1, but affine category
Property calculate result be 10001, only there are two position be 1, so this tunnel mismatch.
For 3-1, administrative group=10010, (mask is received from UPE-2: 11101)；
Administrative group&mask=10010&11101=10000, it is 1 (from a left side that resulting result, which requires first position,
To right number), the result that affinity property calculates is 10001, and affinity property can be with management group attributes match, so tunnel 3-1 is matched.
Above-mentioned is a kind of implementation of affinity property, but method provided by the restriction embodiment of the present invention can only lead to
Cross aforesaid way realization.
Embodiment three
The triggering of PW1 business is opened between UPE-2 and UPE-1 to establish BGP LSP and select the process flow in each section of tunnel
(as shown in Figure 5):
Step 501, UPE-2 is issued to NPE-3 for the place PW1 exemplary configuration business affinity property X6, UPE-2 and is carried industry
The BGP label routing of business affinity property X6；
Step 502, NPE-3 is carried affine in the BGP label routing for receiving UPE-2 publication according to the label routing
Attribute removes to match the tunnel management attribute on the TE tunnel in the equipment, further finds corresponding TE LSP: tunnel 3-3；
Step 503, NPE-3 by BGP label route in next-hop be revised as NPE-3, do not change the affine category of original business
Property, it is preceding to be sent to NPE-1；
Step 504, NPE-1 is carried affine in the BGP label routing for receiving NPE-3 publication according to the label routing
Attribute removes to match the tunnel management attribute on the TE tunnel in the equipment, further finds corresponding TE LSP: tunnel 2-2；
Step 505, NPE-1 by BGP label route in next-hop be revised as NPE-1, do not change the affine category of original business
Property, it is preceding to be sent to UPE-1；
Step 506, UPE-1 is carried affine in the BGP label routing for receiving NPE-1 publication according to the label routing
Attribute removes to match the tunnel management attribute on the TE tunnel in the equipment, further finds corresponding TE LSP: tunnel 1-6；
To this step, establish UPE-1 to UPE-2 BGP LSP (such as: BGP LSP6), from left to right successively iterate to tunnel 1-
6, tunnel 2-2, tunnel 3-3；
Step 507, the example where PW1 issues Label Mapping message to UPE-1 from UPE-2, which carries industry
Be engaged in affinity property TLV, is gone to match corresponding BGP LSP according to business affinity property on UPE-1, matches and iterate to BGP
LSP6。
Mode two, when the tunnel requirements be identified as mark tunnel ID mark, then it is detailed below in conjunction with scene shown in Fig. 6
Illustrate that the embodiment of the present invention realizes process.
It is TE LSP used in each domain, first node of 3 sections of TE LSP in respective AREA is respectively in the following figure
UPE-1、NPE-1、NPE-3。
BGP label routing publication direction: UPE-2 → NPE-3 → NPE-1 → UPE-1 (be also possible to UPE-2 → NPE-4 →
NPE-2→UPE-1)。
VPN routing publication: UPE-2 → UPE-1.
It is routed for VPN, RR and Client each other again between the NPE RR (Router Reflector) as adjacent UPE, NPE
Relationship, so VPN routing, which can be reflected from distal end UPE through multiple RR, reaches local UPE, it may be assumed that in following scene, the VPN of UPE-2
Routing can reach UPE-1.
Example IV
Wherein, VPN triggering is opened between UPE-2 and UPE-1 to establish BGP LSP and select the process flow in each section of tunnel
Including (as shown in Figure 7):
Step 701, UPE-2 is the preferred tunnel requirements identification list of the place VPN1 exemplary configuration, has id:1 in list,
BGP label routing of the UPE-2 to NPE-3 publication carrying business preferred identity attribute；
Step 702, NPE-3 is in the BGP label routing for receiving UPE-2 publication, the business carried according to the label routing
Preferred identity attribute goes to match the mark of the tunnel management in the equipment, finds corresponding TE LSP: tunnel 3-1 (tunnel 3-1 configuration
Management id:1~2)；
That is, NPE-3 after receiving BGP label routing, detects that the business preferred identity attribute in label routing is id:
1, and tunnel 3-1 is configured with management ID:1~2 in the established tunnel NPE-3, so id:1 is matched with tunnel 3-1；
Step 703, the next-hop that BGP label routes is revised as NPE-3 by NPE-3, does not change original business preferred identity
Attribute, it is preceding to be sent to NPE-1；
Step 704, NPE-1 is in the BGP label routing for receiving NPE-3 publication, the business carried according to the label routing
Preferred identity attribute goes to match the mark of the tunnel management in the equipment, finds corresponding TELSP: tunnel 2-1 (tunnel 2-1 configuration
Management ID:1~4)；
Step 705, NPE-1 by BGP label route in next-hop be revised as NPE-1, do not change original business and preferably mark
Know attribute, it is preceding to be sent to UPE-1；
Step 706, UPE-1 is in the BGP label routing for receiving NPE-1 publication, the business carried according to the label routing
Preferred identity attribute goes to match the mark of the tunnel management in the equipment, further finds corresponding TE LSP: the tunnel (tunnel 1-1
1-1 is configured with management ID:1)；To this step, establish UPE-1 to UPE-2 BGP LSP (such as: BGP LSP1), from a left side to
The right side successively iterates to TE LSP: tunnel 1-1, tunnel 2-1, tunnel 3-1；
Step 707, the example where VPN1 issues VPN route to UPE-1 from UPE-2, which also carries industry
Business preferred identity attribute, is matched according to the business preferred identity attribute of the attribute and BGP LSP, is matched simultaneously on UPE-1
Iterate to BGP LSP1.
Embodiment five
Wherein, the triggering of PW business is opened between UPE-2 and UPE-1 to establish BGP LSP and select the processing in each section of tunnel
Process specifically includes (as shown in Figure 8):
Step 801, UPE-2 is the preferred tunnel requirements identification list of the place PW1 exemplary configuration, has id:6 in list,
BGP label routing of the UPE-2 to NPE-3 publication carrying business preferred identity attribute；
Step 802, NPE-3 is in the BGP label routing for receiving UPE-2 publication, the business carried according to the label routing
Preferred identity attribute goes to match the mark of the tunnel management in the equipment, finds corresponding TELSP: tunnel 3-3 (tunnel 3-3 configuration
Management ID:5~6)；
Step 803, the next-hop that BGP label routes is revised as NPE-3 by UPE-2, does not change original business preferred identity
Attribute, it is preceding to be sent to NPE-1；
Step 804, NPE-1 is in the BGP label routing for receiving NPE-3 publication, the business carried according to the label routing
Preferred identity attribute goes to match the mark of the tunnel management in the equipment, finds corresponding TE LSP: tunnel 2-2 (tunnel 2-2 configuration
Management ID:5~8)；
Step 805, NPE-1 by BGP label route in next-hop be revised as NPE-1, do not change original business and preferably mark
Know attribute, it is preceding to be sent to UPE-1；
Step 806, UPE-1 is in the BGP label routing for receiving NPE-1 publication, the business carried according to the label routing
Preferred identity attribute goes to match the mark of the tunnel management in the equipment, further finds corresponding TE LSP: the tunnel (tunnel 1-6
1-6 is configured with management ID:6)；To this step, establish UPE-1 to UPE-2 BGP LSP (such as: BGP LSP6), from a left side to
The right side successively iterates to TE LSP: tunnel 1-6, tunnel 2-2, tunnel 3-3；
Step 807, the example where PW1 issues LDP Mapping message to UPE-1 from UPE-2, which also takes simultaneously
Band business preferred identity TLV is matched according to the business preferred identity attribute of mark and BGP LSP in the TLV, in UPE-
It is matched on 1 and iterates to BGP LSP6.
Embodiment six
As shown in figure 9, the embodiment of the present invention also provides another service tunnel method for building up, this method comprises:
Step 901, when second side of the first edge equipment across at least one intermediate region and second area of first area
When needing to open a virtual private network business between edge equipment, the first edge equipment will be corresponding with the vpn service
Tunnel requirements mark is added in the corresponding label routing of the vpn service；
Step 902, the label routing is forwarded, so that receiving the edge device of the label routing from the label road
The tunnel requirements mark is obtained by middle, and identifies the edge device for receiving the label routing using the tunnel requirements
The tunnel having built up in itself affiliated area is matched, if tunnel requirements mark and appointing in the established tunnel
The matching result in one tunnel meets preset condition, then any tunnel is selected to carry the vpn service.
Embodiment seven
As shown in Figure 10, for the method for the offer of embodiment one, the present invention also provides a kind of edge device 1000, the edges
Equipment includes:
Acquiring unit 1001, when the first edge equipment of first area is across the of at least one intermediate region and second area
When needing to open a virtual private network business between two edge devices, for receiving label corresponding with the vpn service
Routing, and tunnel requirements mark corresponding with the vpn service is obtained from the label routing；
Tunnel selecting unit 1002 has been built for being matched in itself affiliated area using the tunnel requirements mark got
Vertical tunnel, if the matching result in tunnel requirements mark and any tunnel in the established tunnel meets and presets
Condition then selects any tunnel to carry the vpn service.
In order to guarantee that edge device can identify the tunnel for finding vpn service and needing by the tunnel requirements, so this hair
In scheme provided by bright, the tunnel side having built up in itself affiliated area is being matched using the tunnel requirements mark got
Face:
The tunnel selecting unit 1002 is also used to identify the tunnel requirements using preset algorithm and itself is built
The mark in vertical tunnel carries out operation and obtains an operation result, needs to carry the vpn service according to operation result determination
The tunnel having built up.
In addition, the tunnel requirements mark can be a variety of implementations, wherein main can be as the affine category of business
Property, it is described operation result is matched with the mark that tunnel itself has been established in terms of: the tunnel selecting unit 1002 is also used
In the tunnel management attributes match for storing the operation result with itself, and is determined and needed described in carrying according to matching result
The tunnel of vpn service having built up.
In addition, in embodiments of the present invention, because two edge devices are across multiple intermediate regions and realize vpn service
It is open-minded, so the label routing will can just be forwarded to purpose edge device via the edge device of multiple intermediate regions, for
The main task of edge device in intermediate region is the tunnel that selection carrying vpn service is identified according to tunnel requirements, is then turned
Send out label routing.But the purpose edge device for establishing vpn service is then also needed then after receiving label routing
The path iteration that label routing forwards is formed into complete bearing tunnel；And it also requires tunnel is built with corresponding vpn service
Corresponding relationship is found, enables and is sent on corresponding tunnel when sending vpn service.So described when receiving
The edge device of label routing is purpose edge device (being in this embodiment second edge equipment), then the embodiment provides
Edge device further include:
Firstly, the edge device needs to forward label routing the path passed through to be iterated to form a complete carrying
The tunnel of the vpn service, then the equipment include:
Tunnel iteration unit is formed the transfer Tunnel iteration for obtaining transfer tunnel from the label routing
The first edge equipment is to the complete business tunnel of the second edge equipment, wherein the transfer tunnel is the label
The tunnel of other edge devices selection carried in routing.
Secondly, will need the vpn service that carries it is corresponding with the tunnel of foundation on, then the edge device is just further include:
Business matching unit, for when receiving the vpn service routing that the first edge equipment is sent, from described
The tunnel requirements mark is obtained in vpn service routing；Tunnel corresponding with tunnel has been established is identified using the tunnel requirements
It is required that mark is matched, and if the tunnel requirements to identify corresponding with any tunnel tunnel requirements mark identical, it is sharp
The vpn service is sent with the determining tunnel of matching.
Embodiment eight
As shown in figure 11, another edge device is also provided according to the method embodiment of the present invention that embodiment six provides
1100, the edge device is the first edge equipment of first area, wherein when the first edge equipment is across at least one
Between when needing to open a virtual private network business between region and the second edge equipment of second area, the first edge
Equipment 1100 includes:
Adding unit 1101 is identified, tunnel requirements corresponding with vpn service mark is added to the vpn service pair
In the label routing answered；
Retransmission unit 1102, for forwarding the label routing so that receive the edge device of the label routing from
The tunnel requirements mark is obtained in the label routing, and the edge device for receiving the label routing is made to utilize the tunnel
Road requires mark to match the tunnel that has built up in itself affiliated area, if tunnel requirements mark with it is described established
The matching result in any tunnel in tunnel meets preset condition, then any tunnel is selected to carry the vpn service.
As shown in figure 12, the present invention also provides a kind of service tunnels to establish device 120, for executing foregoing individual embodiments
In service tunnel method for building up, it includes at least one processor 1201 (such as CPU) which, which establishes device, at least one
A network interface 1202 or other communication interfaces, memory 1203 and at least one communication bus 1204, for realizing these
Connection communication between device.Processor 1201 is for executing the executable module stored in memory 1203, such as computer
Program.Memory 1203 may include high-speed random access memory (RAM:Random Access Memory), it is also possible to also
Including non-labile memory (non-volatile memory), for example, at least a magnetic disk storage.Pass through at least one
Network interface 1202 (can be wired or wireless) realizes the communication link between the system gateway and at least one other network element
It connects, internet, wide area network, local network, Metropolitan Area Network (MAN) etc. can be used.
In some embodiments, memory stores program 12031, and program can be executed by processor, this program
It include: the first edge equipment when first area across being needed between at least one intermediate region and the second edge equipment of second area
When opening a virtual private network business, label routing corresponding with the vpn service is received, from the label routing
It is middle to obtain tunnel requirements mark corresponding with the vpn service；Itself affiliated area is matched using the tunnel requirements mark got
The tunnel being had built up in domain, if the matching knot of the tunnel requirements mark and any tunnel in the established tunnel
Fruit meets preset condition, then any tunnel is selected to carry the vpn service.
Said one or multiple technical solutions in the embodiment of the present application, at least have the following technical effect that:
The above method provided in an embodiment of the present invention initiates the edge device of vpn service, for different business to tunnel
It is identified it is required that distributing corresponding tunnel requirements to different business, and tunnel requirements mark is carried in the corresponding mark of business
In label routing, the edge device for receiving the label routing is then enabled to be identified as according to the tunnel requirements described
The tunnel that vpn service selection needs.So method provided by the embodiment of the present invention, so that different business can in different domains
It is carried with selecting similar and different tunnel, while tunnel can dynamically be mapped among different domains, be guaranteed in industry
After business enters corresponding domain, it can be carried on correct tunnel.So that different business can be with flexible choice tunnel, greatly
It is big to promote network link bandwidth availability ratio.
Additionally by scheme provided by the invention, user can establish different tunnels according to planning the case where not same area,
Mapping between tunnel can be dynamically completed, and O&M is simple.
Further, it is also convenient for the corresponding relationship that client explicitly, end-to-endly plans srvice instance and tunnel.
Method of the present invention is not limited to embodiment described in specific embodiment, those skilled in the art according to
Technical solution of the present invention obtains other embodiments, also belongs to the scope of the technical innovation of the present invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (18)
1. a kind of service tunnel method for building up, which is characterized in that this method comprises:
When the first edge equipment of first area between at least one intermediate region and the second edge equipment of second area across needing
When opening a virtual private network business, receive the purpose edge device of label routing corresponding with the vpn service from
Tunnel requirements mark corresponding with the vpn service is obtained in the label routing；Wherein, tunnel requirements mark from it is different
Vpn service is corresponding, is used to indicate requirement of the different business to tunnel；
The purpose edge device matches the tunnel having built up in itself affiliated area using the tunnel requirements mark got,
If the tunnel requirements mark and the matching result in any tunnel in the established tunnel meet preset condition, select
It selects any tunnel and carries the vpn service.
2. the method as described in claim 1, which is characterized in that the purpose edge device utilizes the tunnel requirements mark got
Knowing the tunnel for matching and having built up in itself affiliated area includes:
The purpose edge device is identified using preset algorithm to the tunnel requirements and the mark in itself established tunnel
It carries out operation and obtains an operation result, the tunnel having built up for needing to carry the vpn service is determined according to the operation result
Road.
3. method according to claim 2, which is characterized in that the tunnel requirements are identified as business affinity property, then described
According to the operation result determine need to carry the vpn service the tunnel having built up include: by the operation result with
The tunnel management attributes match of the purpose edge device storage, and need to carry the vpn service according to matching result determination
The tunnel having built up.
4. method according to claim 2, which is characterized in that when the purpose edge device be the second edge equipment,
Then this method further include:
The second edge equipment obtains transfer tunnel from the label routing, and the transfer Tunnel iteration is formed described
One edge device is to the complete business tunnel of the second edge equipment, wherein the transfer tunnel is in the label routing
The tunnel of other edge devices selection carried.
5. method as claimed in claim 4, which is characterized in that this method further include:
When the second edge equipment receives the vpn service routing that the first edge equipment is sent, from the vpn service road
The tunnel requirements mark is obtained by middle；
It identifies tunnel requirements mark corresponding with tunnel has been established using the tunnel requirements to be matched, if the tunnel is wanted
It asks mark tunnel requirements mark corresponding with any tunnel identical, then sends the vpn service using the determining tunnel of matching.
6. a kind of service tunnel method for building up, which is characterized in that this method comprises:
When the first edge equipment of first area between at least one intermediate region and the second edge equipment of second area across needing
When opening a virtual private network business, the first edge equipment will tunnel requirements mark corresponding with the vpn service
It is added in the corresponding label routing of the vpn service；Wherein, the tunnel requirements mark is corresponding from different vpn services, is used for
Indicate requirement of the different business to tunnel；
The label routing is forwarded, so that described in the edge device for receiving the label routing obtains from the label routing
Tunnel requirements mark, and make the edge device for receiving the label routing using belonging to the matching itself of tunnel requirements mark
The tunnel being had built up in region, if the matching of the tunnel requirements mark and any tunnel in the established tunnel
As a result meet preset condition, then any tunnel is selected to carry the vpn service.
7. a kind of edge device, which is characterized in that the edge device includes:
Acquiring unit, when the first edge equipment of first area is set across the second edge of at least one intermediate region and second area
When needing to open a virtual private network business between standby, for receiving label routing corresponding with the vpn service, and
Tunnel requirements mark corresponding with the vpn service is obtained from the label routing；Wherein, tunnel requirements mark with not
It is corresponding with vpn service, it is used to indicate requirement of the different business to tunnel；
Tunnel selecting unit, for matching the tunnel having built up in itself affiliated area using the tunnel requirements mark got
Road, if tunnel requirements mark and the matching result in any tunnel in the established tunnel meet preset condition,
Any tunnel is then selected to carry the vpn service.
8. edge device as claimed in claim 7, which is characterized in that the tunnel selecting unit is also used to utilize preset calculation
Method identifies the tunnel requirements and the mark in itself established tunnel carries out operation and obtains an operation result, according to the fortune
It calculates result and determines the tunnel having built up for needing to carry the vpn service.
9. edge device as claimed in claim 8, which is characterized in that the tunnel requirements are identified as business affinity property, institute
It states tunnel selecting unit to be also used to the tunnel management attributes match of the operation result and itself storage, and according to matching result
Determine the tunnel having built up for needing to carry the vpn service.
10. edge device as claimed in claim 8, which is characterized in that the edge device is the second edge equipment, institute
State edge device further include:
Tunnel iteration unit is formed the transfer Tunnel iteration described for obtaining transfer tunnel from the label routing
First edge equipment is to the complete business tunnel of the second edge equipment, wherein the transfer tunnel is the label routing
The tunnel of other edge devices selection of middle carrying.
11. edge device as claimed in claim 10, which is characterized in that the edge device further include:
Business matching unit, when for being routed in the vpn service for receiving the first edge equipment transmission, from the VPN industry
The tunnel requirements mark is obtained in business routing；Tunnel requirements mark corresponding with tunnel has been established is identified using the tunnel requirements
Knowledge is matched, true using matching if tunnel requirements mark tunnel requirements mark corresponding with any tunnel is identical
Fixed tunnel sends the vpn service.
12. a kind of edge device, which is characterized in that the edge device is the first edge equipment of first area, wherein works as institute
It is virtual special across needing to open one between at least one intermediate region and the second edge equipment of second area to state first edge equipment
When with net vpn service, the first edge equipment includes:
Adding unit is identified, it is corresponding for tunnel requirements corresponding with vpn service mark to be added to the vpn service
In label routing；Wherein, the tunnel requirements mark is corresponding from different vpn services, is used to indicate different business and wants to tunnel
It asks；
Retransmission unit, for forwarding the label routing, so that receiving the edge device of the label routing from the label
The tunnel requirements mark is obtained in routing, and the edge device for receiving the label routing is made to utilize the tunnel requirements mark
The tunnel for matching and having built up in itself affiliated area is known, if in tunnel requirements mark and the established tunnel
The matching result in any tunnel meets preset condition, then any tunnel is selected to carry the vpn service.
13. a kind of service tunnel establishes device characterized by comprising
Memory, the memory include computer program；
The processor being connected with the memory, the processor is for executing the computer program, thereby executing following behaviour
Make:
When the first edge equipment of first area between at least one intermediate region and the second edge equipment of second area across needing
When opening a virtual private network business, label routing corresponding with the vpn service is received, and from the label road
Tunnel requirements mark corresponding with the vpn service is obtained by middle；Wherein, the tunnel requirements identify and different vpn services pair
It answers, is used to indicate requirement of the different business to tunnel；
The tunnel having built up in itself affiliated area is matched using the tunnel requirements mark got, if the tunnel requirements
Mark and the matching result in any tunnel in the established tunnel meet preset condition, then any tunnel is selected to hold
Carry the vpn service.
14. device according to claim 13, which is characterized in that the processor is also used to execute following operation:
The tunnel requirements are identified using preset algorithm and the mark in itself established tunnel carries out operation and obtains a fortune
It calculates as a result, determining the tunnel having built up for needing to carry the vpn service according to the operation result.
15. device according to claim 14, which is characterized in that the tunnel requirements are identified as business affinity property, institute
It states processor to be also used to: be determined by the tunnel management attributes match of the operation result and itself storage, and according to matching result
Need to carry the tunnel of the vpn service having built up.
16. device according to claim 14, which is characterized in that the service tunnel establishes device for second side
Edge equipment, the processor are also used to:
Transfer tunnel is obtained from the label routing, and the transfer Tunnel iteration is formed into the first edge equipment described in
The complete business tunnel of second edge equipment, wherein the transfer tunnel is that other edges carried in the label routing are set
The tunnel of alternative.
17. device according to claim 16, which is characterized in that the processor is also used to:
When receiving the vpn service routing that the first edge equipment is sent, the tunnel is obtained from vpn service routing
Road requires mark；It identifies tunnel requirements mark corresponding with tunnel has been established using the tunnel requirements to be matched, if institute
It states tunnel requirements and identifies that corresponding with any tunnel tunnel requirements mark is identical, then described in the tunnel transmission using matching determination
Vpn service.
18. a kind of first edge equipment characterized by comprising
Memory, the memory include computer program；
The processor being connected with the memory, the processor is for executing the computer program, thereby executing following behaviour
Make:
When first area the first edge equipment across the second edge equipment of at least one intermediate region and second area it
Between when needing to open a virtual private network business, tunnel requirements corresponding with vpn service mark is added to described
In the corresponding label routing of vpn service；Wherein, the tunnel requirements mark is corresponding from different vpn services, is used to indicate not of the same trade or business
The requirement being engaged in tunnel；
The label routing is forwarded, so that described in the edge device for receiving the label routing obtains from the label routing
Tunnel requirements mark, and make the edge device for receiving the label routing using belonging to the matching itself of tunnel requirements mark
The tunnel being had built up in region, if the matching of the tunnel requirements mark and any tunnel in the established tunnel
As a result meet preset condition, then any tunnel is selected to carry the vpn service.
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| CN201410136102.6A CN104980362B (en) | 2014-04-04 | 2014-04-04 | A kind of service tunnel method for building up and equipment |
| PCT/CN2015/074488 WO2015149623A1 (en) | 2014-04-04 | 2015-03-18 | Service tunnel establishment method and device |
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| CN201410136102.6A CN104980362B (en) | 2014-04-04 | 2014-04-04 | A kind of service tunnel method for building up and equipment |
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| CN104980362A (en) | 2015-10-14 |
| WO2015149623A1 (en) | 2015-10-08 |
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