CN104734929B - The method and device of routing diffusion - Google Patents
The method and device of routing diffusion Download PDFInfo
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- CN104734929B CN104734929B CN201310697935.5A CN201310697935A CN104734929B CN 104734929 B CN104734929 B CN 104734929B CN 201310697935 A CN201310697935 A CN 201310697935A CN 104734929 B CN104734929 B CN 104734929B
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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
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/02—Topology update or discovery
- H04L45/04—Interdomain routing, e.g. hierarchical routing
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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]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2212/00—Encapsulation of packets
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- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The embodiment of the invention discloses a kind of method and devices of routing diffusion, are related to field of communication technology, when being able to solve between MCE or carrying out routing diffusion between MCE and PE, consume a large amount of CPU and memory source, equipment is difficult to the problem of supporting.The method comprise the steps that the format of setting Network Layer Reachable Information NLRI；Virtual Private Network VPN routing is encapsulated according to the format of the NLRI；The VPN routing of encapsulation is sent by Border Gateway Protocol (BGP).The present invention is suitable for the routing diffusion between MCE and PE or between MCE.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of method and devices of routing diffusion.
Background technique
The development of cloud computing technology has pushed the development of public cloud business.Publicly-owned cloud data center is that public cloud business mentions
The most important infrastructure supplied, it needs support the access of a large amount of tenants.For between safety and tenant, there are IP(Internet
Protocol, network protocol) reasons, the different tenants such as address overlap need using different three-layer VPN (Virtual
Private Network, Virtual Private Network).Three-layer VPN can generally use MPLS(Multiprotocol Label
Switch, multiprotocol label switching) technologies such as VPN realize.MPLS VPN relates generally to CE(Customer Edge, user boundary
Equipment), PE(Provider Edge, operator edge device) and P (Provider Router, core router) equipment.It is public
Have and does not dispose MPLS VPN inside cloud data center generally.Publicly-owned cloud data center egress router can be used as PE equipment, very
To as CE equipment, other routers inside publicly-owned cloud data center can only then be used as CE equipment.It is this to support multiple VPN's
CE equipment, referred to as MCE(Multi-VPN-Instance Customer Edge, user's edge device of more VPN instance).?
Publicly-owned cloud data center, if using NVO3(Network Virtualization Over Layer3, three-layer network is virtual
Change) technology, then the centralized NVO3 gateway of three layers of forwarding is exactly a typical MCE after NVO3 termination.MCE and PE and MCE
Between be all realized by Routing Protocol VPN routing diffusion.The method of the prior art are as follows: be respectively configured on MCE and PE
Different interfaces binds different VPN, and then each VPN uses different IGP (Interior Gateway respectively
Protocol, Interior Gateway Protocol) process or BGP (Border Gateway Protocol, Border Gateway Protocol) session into
Row routing diffusion.
At least there are the following problems in the prior art: under some cases, the VPN for needing MCE and PE to support quantity very more,
For example, the VPN instance quantity that centralization NVO3 gateway needs support is far longer than general MCE, can reach it is thousands of, tens of thousands of even
Million grades.In this case, using the routing diffusion mode between existing MCE and PE, a large amount of CPU(Central will be consumed
Processing Unit, central processing unit) and memory source, equipment be difficult to support.
Summary of the invention
The embodiment of the present invention provides a kind of method and device of routing diffusion, is able to solve between MCE or MCE and PE
Between carry out routing diffusion when, consume a large amount of CPU and memory source, equipment is difficult to the problem of supporting.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that
In a first aspect, the embodiment of the present invention provides a kind of method of routing diffusion, comprising:
The format of Network Layer Reachable Information NLRI is set；
Virtual Private Network VPN routing is encapsulated according to the format of the NLRI；
The VPN routing of encapsulation is sent by Border Gateway Protocol (BGP).
With reference to first aspect, in the first possible implementation of the first aspect, the lattice according to the NLRI
Formula encapsulation Virtual Private Network VPN, which is routed, includes:
Subsidiary Address-Family Identifier SAFI in VPN routing is set as preset value.
With reference to first aspect, in the second possible implementation of the first aspect, described according to the NLRI's
Before format encapsulates Virtual Private Network VPN routing, the method also includes:
Carry out VPN configuration；
Carry out BGP configuration.
The possible implementation of second with reference to first aspect, in the third possible implementation of first aspect
In, the progress VPN configuration includes:
VPN instance is configured, the VPN instance and the VPN are corresponded；
Route Distinguisher RD and route target RT is configured for the VPN instance；
The address family for configuring the VPN is IPv4.
The possible implementation of second with reference to first aspect, in the 4th kind of possible implementation of first aspect
In, the progress BGP configuration includes:
The specified VPN for needing to send routing by the BGP.
Second aspect, the embodiment of the present invention provide a kind of device of routing diffusion, comprising:
Setting unit, for the format of Network Layer Reachable Information NLRI to be arranged；
Encapsulation unit, for encapsulating Virtual Private Network VPN routing according to the format of the NLRI；
Transmission unit, the VPN for sending encapsulation by Border Gateway Protocol (BGP) are routed.
In conjunction with second aspect, in the first possible implementation of the second aspect, the encapsulation unit includes:
Subelement is set, for the subsidiary Address-Family Identifier SAFI in VPN routing to be set as preset value.
In conjunction with second aspect, in a second possible implementation of the second aspect, described device further include:
Configuration unit, for carrying out VPN configuration；
The configuration unit is also used to carry out BGP configuration.
In conjunction with second of possible implementation of second aspect, in the third possible implementation of second aspect
In, the configuration unit includes:
Subelement is configured, for configuring VPN instance, the VPN instance and the VPN are corresponded；
The configuration subelement is also used to configure Route Distinguisher RD and route target RT for the VPN instance；
The address family that the configuration subelement is also used to configure the VPN is IPv4.
In conjunction with second of possible implementation of second aspect, in the 4th kind of possible implementation of second aspect
In, the configuration unit includes:
Specified subelement, for the specified VPN for needing to send routing by the BGP.
In the prior art, be between MCE or between MCE and PE by multiple IGP processes or multiple bgp sessions come into
The diffusion of the more VPN routings of row.The method and device of routing diffusion provided in an embodiment of the present invention, the present invention in be arranged in MCE
The format of Network Layer Reachable Information NLRI；It is setting by VPN routed encapsulation when carrying out Virtual Private Network VPN routing diffusion
NLRI format；The VPN routing of encapsulation is sent by Border Gateway Protocol (BGP).Because using the NLRI format of setting to VPN
Routing is packaged, and between MCE or between MCE and PE, the routing of multiple VPN can be spread by a bgp session, is subtracted
The consumption of few CPU and memory source dramatically reduce the CPU burden of MCE and PE.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to needed in the embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the method flow diagram that one embodiment of the invention provides；
Fig. 2 is the network architecture diagram that further embodiment of this invention provides；
Fig. 3 is the method flow diagram that further embodiment of this invention provides；
Fig. 4 is the Network Layer Reachable Information form schematic diagram that further embodiment of this invention provides；
Fig. 5 is the encapsulation format schematic diagram that further embodiment of this invention provides；
Fig. 6 is the address schematic diagram that further embodiment of this invention provides；
Fig. 7, Fig. 8 are the apparatus structure schematic diagram that further embodiment of this invention provides；
Fig. 9 is the apparatus structure schematic diagram that further embodiment of this invention provides.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
One embodiment of the invention provides a kind of method of routing diffusion, between MCE and PE or between multiple MCE
VPN routing diffusion, by taking MCE is routed to PE diffusing V PN as an example, as shown in Figure 1, which comprises
101, the format of Network Layer Reachable Information NLRI is arranged in MCE.
Wherein, NLRI(Network Layer Reachability Information, Network Layer Reachable Information) it is road
The format used by encapsulation.
102, MCE is routed according to the format packaging V PN of NLRI.
Wherein, packaging V PN route when, by VPN route in subsidiary Address-Family Identifier SAFI be set as preset value.
103, MCE is routed by the VPN that Border Gateway Protocol (BGP) sends encapsulation.
Wherein, before packaging V PN routing, MCE also needs to carry out VPN configuration and BGP configuration.VPN configuration includes configuration
VPN instance, VPN instance and VPN are corresponded；RD(Route Distinguisher, Route Distinguisher are configured for VPN instance)
With RT(Route Target, route target)；Configure VPN address family be IPv4 (Internet Protocol version4,
Internet protocol version 4).BGP configuration includes the specified VPN for needing to send routing by BGP.
In the prior art, be between MCE or between MCE and PE by multiple IGP processes or multiple bgp sessions come into
The diffusion of the more VPN routings of row.The format of Network Layer Reachable Information NLRI is set in MCE in the embodiment of the present invention；Carrying out VPN
When routing diffusion, by the format for the NLRI that VPN routed encapsulation is setting；The road VPN of encapsulation is sent by Border Gateway Protocol (BGP)
By.Because the NLRI format using setting is packaged VPN routing, between MCE or between MCE and PE, pass through one
Bgp session can spread the routing of multiple VPN, reduce the consumption of CPU and memory source, dramatically reduce the CPU of MCE and PE
Burden.
Further embodiment of this invention provides a kind of method of routing diffusion, as shown in Fig. 2, tenant passes through wide-area network access cloud
The server of data center difference VPN, wide area network PE are connected with cloud data center egress router, gateway by three-layer network with
Egress router connection, the embodiment of the present invention is by taking egress router is routed to gateway diffusing V PN as an example, egress router and gateway
All it is equivalent to MCE equipment.As shown in Figure 3, which comprises
201, egress router carries out VPN instance configuration.
Wherein, VPN instance is also referred to as VRF(VPN Routing and Forwarding table, VPN routing forwarding
Table), it is corresponded with the VPN connected on egress router.There is one or more VPN instance, each VPN on egress router
Example has oneself independent routing table, forwarding table and corresponding interface.
202, egress router is that VPN instance configures RD and RT.
Wherein, the address space independence of VPN may be implemented in RD, and RD is configured based on VPN instance, is carried on routing protocol packet
In and the address VPN put together；RT points, to introduce route target import RT and export route targets export RT, are used for
The routing for controlling VPN introduces.When router is routed by BGP diffusing V PN, export RT attribute can be placed in protocol massages,
The router of the protocol massages is received, which can be introduced into VPN instance of the import RT equal to export RT.
203, the address family of egress router configuration VPN is IPv4.
Wherein, in the embodiment of the present invention, it is the address IPv4 that the address VPN, which uses, is IPv4's by bgp protocol diffusion
Routing iinformation then configures IPv4 for the address family of VPN on egress router.
204, egress router carries out BGP configuration.
It should be noted that VPN routing is transmitted by BGP between egress router and gateway, to guarantee VPN routing
Correct diffusion then needs to configure BGP in egress router.
205, the specified VPN that routing is sent by this bgp session of egress router.
206, the format of egress router setting NLRI.
Wherein, as shown in figure 4, for NLRI format in the embodiment of the present invention.A new SAFI is defined simultaneously
(Subsequent Address Family Identifier attaches Address-Family Identifier), indicate what VPN routed encapsulation used
NLRI format.
It include multiple IPv4 address prefixes in Prefix it should be noted that in the embodiment of the present invention, and in the prior art
Only an IPV4 address prefix is compared, and the efficiency of routing diffusion can be improved.
207, egress router and gateway establish bgp session.
It should be noted that the session between bgp neighboring router is built upon TCP(Transmission Control
Protocol, transmission control protocol) on agreement.Transmission Control Protocol provides a kind of reliable transmission mechanism, supports two kinds of
Session: external BGP and internal bgp.External BGP is the session between the router for belonging to two different autonomous systems, this
A little routers adjoin, and share identical medium and subnet.Internal bgp is between the router inside an autonomous system
Session, it be used to autonomous system internal coordination and it is synchronous find routing process.
Wherein, middle outlet of embodiment of the present invention router and gateway are in identical autonomous system, egress router and net
The session of internal bgp is established between pass.After bgp session is established, egress router and gateway can phase counterdiffusion routing iinformations.
The embodiment of the present invention is by taking egress router and gateway diffusion routing as an example.
208, the egress router encapsulation VPN to be spread routing.
Wherein, when BGP diffusion routing, pass through the MP_REACH_NLRI(Multiprotocol in the encapsulation of BGP message
Reachable NLRI, multi-protocols are up to NLRI) option come realize VPN routing encapsulation, as shown in figure 5, be MP_REACH_
NLRI choice format.AFI(Address Family Identifier, Address-Family Identifier in MP_REACH_NLRI option) it indicates
Address family uses the address IPv4 or IPv6, respectively with 1 or 0 mark；SAFI illustrates the connotation of all data in NLRI, example
Such as, if SAFI is 128, indicate that the first row data are length, the second row data are label in NLRI, if SAFI is 127
When, indicate that the first row data are length, the second row data are address prefix Prefix in NLRI；NANH(Network Address
Of Next Hop, next hop address) and NLRI in Prefix constitute VPN address, as shown in fig. 6, be address format.
In the embodiment of the present invention, VPN uses the address IPv4, then the value of AFI is 1；Using the NLRI of not tape label, then SAFI
It is 127.
It should be noted that indicating that the first row data are length, the second row data are in NLRI when SAFI is 127
Address prefix Prefix, be in order to facilitate the present embodiment is illustrated and is defined, need to be to normal structure if wanting practical application
Application.
209, egress router sends the VPN routing of encapsulation.
Wherein, egress router VPN routed encapsulation to be sent sends it to gateway in BGP.
Further, gateway is configured by VPN and BGP, in the VPN routing for receiving egress router transmission, to it
Learnt.After gateway is to VPN route learning, the address of the VPN in VPN routing is obtained, and be added to corresponding VRF
In, then by the routing diffusion received to other equipment.When gateway receives the message to be forwarded, according to the purpose of message
Address and VRF carry out high-order matching, if the destination address of message and received in the VPN routing of egress router transmission
The address prefix of VPN is identical, indicates that this message can be forwarded to corresponding destination address by egress router, then gateway will be reported
Text is transmitted to egress router.
It should be noted that egress router and gateway need to carry out mutual routing diffusion, in the embodiment of the present invention, with
For egress router carries out routing diffusion to gateway, if gateway carries out routing diffusion to egress router, gateway is needed to hold
Row step 201 to step 209 operating process.
It should be noted that the present invention is applied not only to routing diffusion between egress router and gateway, it can be also used for
Routing diffusion between his MCE and PE, MCE, for example, publicly-owned cloud data center gateway is connected with wide area network PE, gateway and PE it
Between VPN route diffusion.
In the prior art, when egress router carries out routing diffusion to gateway, pass through multiple IGP processes or multiple BGP
Session carries out the diffusions of more VPN routings.VPN and BGP configuration is carried out in egress router in the embodiment of the present invention, and net is set
Format of the network layers up to information NLRI；When carrying out VPN routing diffusion, by the format for the NLRI that VPN routed encapsulation is setting；It is logical
Cross the VPN routing that Border Gateway Protocol (BGP) sends encapsulation.Because the NLRI format using setting is packaged VPN routing,
Between egress router and gateway, the routing of multiple VPN can be spread by a bgp session, reduce CPU and memory source
Consumption dramatically reduces the CPU burden of MCE and PE.
Further embodiment of this invention provides a kind of device 30 of routing diffusion, as shown in fig. 7, described device 30 includes:
Setting unit 31, for the format of Network Layer Reachable Information NLRI to be arranged；
Encapsulation unit 32, for encapsulating Virtual Private Network VPN routing according to the format of the NLRI；
Transmission unit 33, the VPN for sending encapsulation by Border Gateway Protocol (BGP) are routed.
Further, as shown in figure 8, the encapsulation unit 32 includes:
Subelement 321 is set, for the subsidiary Address-Family Identifier SAFI in VPN routing to be set as preset value.
Further, as shown in figure 8, described device 30 further include:
Configuration unit 34, for carrying out VPN configuration；
The configuration unit 34 is also used to carry out BGP configuration.
Further, as shown in figure 8, the configuration unit 34 includes:
Subelement 341 is configured, for configuring VPN instance, the VPN instance and the VPN are corresponded；
The configuration subelement 341 is also used to configure Route Distinguisher RD and route target RT for the VPN instance；
The address family that the configuration subelement 341 is also used to configure the VPN is IPv4.
Further, as shown in figure 8, the configuration unit 34 includes:
Specified subelement 342, for the specified VPN for needing to send routing by the BGP.
In the prior art, be between MCE or between MCE and PE by multiple IGP processes or multiple bgp sessions come into
The diffusion of the more VPN routings of row.The format of Network Layer Reachable Information NLRI is set in device 30 in the embodiment of the present invention；Carry out
When VPN routing diffusion, by the format for the NLRI that VPN routed encapsulation is setting；Encapsulation is sent by Border Gateway Protocol (BGP)
VPN routing.Because the NLRI format using setting is packaged VPN routing, between MCE or between MCE and PE, pass through
One bgp session can spread the routing of multiple VPN, reduce the consumption of CPU and memory source, dramatically reduce MCE and PE
CPU burden.
Further embodiment of this invention provides a kind of device 40 of routing diffusion, as shown in figure 9, described device 40 includes:
Processor 41, for the format of Network Layer Reachable Information NLRI to be arranged；And for the format according to the NLRI
Encapsulate Virtual Private Network VPN routing；
Transmitter 42, the VPN for sending encapsulation by Border Gateway Protocol (BGP) are routed.
Further, the processor 41 is also used to the subsidiary Address-Family Identifier SAFI in VPN routing being set as pre-
If value.
Further, the processor 41 is also used to carry out VPN configuration；And for carrying out BGP configuration.
Further, the processor 41 is also used to configure VPN instance, and the VPN instance and the VPN are corresponded；
And for configuring Route Distinguisher RD and route target RT for the VPN instance；And the address family for configuring the VPN
For IPv4.
Further, the processor 41 is also used to the specified VPN for needing to send routing by the BGP.
In the prior art, be between MCE or between MCE and PE by multiple IGP processes or multiple bgp sessions come into
The diffusion of the more VPN routings of row.The format of Network Layer Reachable Information NLRI is set in device 40 in the embodiment of the present invention；Carry out
When VPN routing diffusion, by the format for the NLRI that VPN routed encapsulation is setting；Encapsulation is sent by Border Gateway Protocol (BGP)
VPN routing.Because the NLRI format using setting is packaged VPN routing, between MCE or between MCE and PE, pass through
One bgp session can spread the routing of multiple VPN, reduce the consumption of CPU and memory source, dramatically reduce MCE and PE
CPU burden.
The embodiment of the method for above-mentioned offer, concrete function may be implemented in the device of routing diffusion provided in an embodiment of the present invention
Realize the explanation referred in embodiment of the method, details are not described herein.The method of routing diffusion provided in an embodiment of the present invention and
Device can be adapted for the routing diffusion between MCE and PE or between MCE, but be not limited only to this.
All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for equipment reality
For applying example, since it is substantially similar to the method embodiment, so describing fairly simple, related place is referring to embodiment of the method
Part explanation.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a computer-readable storage medium
In, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (8)
1. a kind of method of routing diffusion characterized by comprising
The format of Network Layer Reachable Information NLRI is set；
Virtual Private Network VPN routing is encapsulated according to the format of the NLRI；
The VPN routing of encapsulation is sent by Border Gateway Protocol (BGP)；
It is described to include: according to the encapsulation Virtual Private Network VPN routing of the format of the NLRI
Subsidiary Address-Family Identifier SAFI in VPN routing is set as preset value；The value of the SAFI is the preset value
To indicate in the NLRI that the second row data include multinomial address prefix Prefix without label.
2. the method according to claim 1, wherein encapsulating virtual private according to the format of the NLRI described
Before network VPN routing, the method also includes:
Carry out VPN configuration；
Carry out BGP configuration.
3. according to the method described in claim 2, it is characterized in that, progress VPN configuration includes:
VPN instance is configured, the VPN instance and the VPN are corresponded；
Route Distinguisher RD and route target RT is configured for the VPN instance；
The address family for configuring the VPN is IPv4.
4. according to the method described in claim 2, it is characterized in that, progress BGP configuration includes:
The specified VPN for needing to send routing by the BGP.
5. a kind of device of routing diffusion characterized by comprising
Setting unit, for the format of Network Layer Reachable Information NLRI to be arranged；
Encapsulation unit, for encapsulating Virtual Private Network VPN routing according to the format of the NLRI；
Transmission unit, the VPN for sending encapsulation by Border Gateway Protocol (BGP) are routed；
The encapsulation unit includes:
Subelement is set, for the subsidiary Address-Family Identifier SAFI in VPN routing to be set as preset value；The SAFI's takes
Value is the preset value to indicate in the NLRI that the second row data include multinomial address prefix Prefix without label.
6. device according to claim 5, which is characterized in that described device further include:
Configuration unit, for carrying out VPN configuration；
The configuration unit is also used to carry out BGP configuration.
7. device according to claim 6, which is characterized in that the configuration unit includes:
Subelement is configured, for configuring VPN instance, the VPN instance and VPN are corresponded；
The configuration subelement is also used to configure Route Distinguisher RD and route target RT for the VPN instance；
The address family that the configuration subelement is also used to configure the VPN is IPv4.
8. device according to claim 6, which is characterized in that the configuration unit includes:
Specified subelement, for the specified VPN for needing to send routing by the BGP.
Priority Applications (2)
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| CN201310697935.5A CN104734929B (en) | 2013-12-18 | 2013-12-18 | The method and device of routing diffusion |
| PCT/CN2014/086336 WO2015090087A1 (en) | 2013-12-18 | 2014-09-12 | Routing diffusion method and device |
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| CN201310697935.5A CN104734929B (en) | 2013-12-18 | 2013-12-18 | The method and device of routing diffusion |
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| CN106572021B (en) * | 2015-10-09 | 2021-07-06 | 中兴通讯股份有限公司 | Method for realizing network virtualization superposition and network virtualization edge node |
| CN106411735B (en) * | 2016-10-18 | 2019-10-11 | 新华三技术有限公司 | A kind of method for configuring route and device |
| CN110875882B (en) * | 2018-08-30 | 2021-07-20 | 华为技术有限公司 | Communication method and communication device |
| CN114650248B (en) * | 2020-12-02 | 2023-07-18 | 中国电信股份有限公司 | Processing method and system of routing information and autonomous system boundary router |
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| CN101299707A (en) * | 2007-09-20 | 2008-11-05 | 上海寰创通信科技有限公司 | Method for diffusing route |
| CN102724118A (en) * | 2012-06-06 | 2012-10-10 | 华为技术有限公司 | Label distribution method and device |
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| Publication number | Publication date |
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| CN104734929A (en) | 2015-06-24 |
| WO2015090087A1 (en) | 2015-06-25 |
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