CN109327375B - Method, device and system for establishing VXLAN tunnel - Google Patents
Method, device and system for establishing VXLAN tunnel Download PDFInfo
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- CN109327375B CN109327375B CN201710644218.4A CN201710644218A CN109327375B CN 109327375 B CN109327375 B CN 109327375B CN 201710644218 A CN201710644218 A CN 201710644218A CN 109327375 B CN109327375 B CN 109327375B
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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]
- H04L12/2854—Wide area networks, e.g. public data networks
- H04L12/2856—Access arrangements, e.g. Internet access
- H04L12/2858—Access network architectures
- H04L12/2859—Point-to-point connection between the data network and the subscribers
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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
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0876—Aspects of the degree of configuration automation
Abstract
The invention discloses a method, a device and a system for establishing a VXLAN tunnel, and relates to the field of communication. The service controller verifies the on-line notification message after receiving the on-line notification message sent by the service forwarding equipment, sends a communication channel configuration message to the service forwarding equipment after the on-line notification message passes the verification so that the service forwarding equipment verifies the communication channel configuration message, and establishes an extensible virtual local area network VXLAN tunnel with the service forwarding equipment after receiving a response message that the communication channel configuration message sent by the service forwarding equipment is successfully verified. The invention establishes VXLAN tunnel by utilizing direct interaction between the service forwarding equipment and the service controller, thereby directly carrying out large two-layer interaction of relevant information between the service controller and the service forwarding equipment through the VXLAN tunnel.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method, an apparatus, and a system for establishing a VXLAN tunnel.
Background
At present, two-layer interworking spanning three-layer networks often needs to be implemented between the transfer control separation devices, for example, a transfer plane and a control plane device of a transfer control separation BRAS (Broadband Remote Access Server) need to implement interaction of a PPPoE (Point-to-Point Protocol over Ethernet, Point-to-Point Protocol based on Ethernet), and an IPoE (Internet Protocol over Ethernet, Internet Protocol based on Ethernet) message through a large two-layer network before. However, the existing scheme is usually implemented by manually configuring a VXLAN (Virtual Extensible LAN) tunnel, and has complex configuration and low efficiency.
Disclosure of Invention
Embodiments of the present invention provide a method, an apparatus, and a system for establishing a VXLAN tunnel, in which a VXLAN tunnel is established by using direct interaction between a service forwarding device and a service controller, so that a large two-layer interaction of related information (e.g., PPPoE dial-up protocol packet) between the service controller and the service forwarding device can be directly performed through the VXLAN tunnel.
According to one aspect of the present invention, there is provided a method for establishing a VXLAN tunnel, comprising:
after receiving an online notification message sent by service forwarding equipment, verifying the online notification message;
after the online notification message passes the verification, sending a communication channel configuration message to the service forwarding equipment so that the service forwarding equipment can verify the communication channel configuration message;
and after receiving a response message of successful verification of the communication channel configuration message sent by the service forwarding equipment, establishing an extensible virtual local area network VXLAN tunnel with the service forwarding equipment.
In one embodiment, before sending the communication channel configuration message to the service forwarding device, the method further includes:
and sending the verification result of the online notification message to the service forwarding equipment, so that the service forwarding equipment establishes the VXLAN tunnel only under the condition that the online notification message is successfully verified and the communication channel configuration message is successfully verified.
In one embodiment, verifying the online notification message comprises:
verifying the VXLAN tunnel terminal IP address and the virtual machine MAC address table of the service forwarding equipment in the online notification message;
and if the IP address of the VXLAN tunnel terminal at the service forwarding equipment side and the MAC address table of the virtual machine pass the verification, determining that the online notification message passes the verification.
In one embodiment, the communication channel configuration message includes the VXLAN tunnel terminal IP address and the virtual machine MAC address table of the service controller.
In one embodiment, the message is an Echo message in the OpenFlow protocol.
According to another aspect of the present invention, there is provided a service controller for establishing a VXLAN tunnel, comprising:
a receiving module, configured to receive an online notification message sent by a service forwarding device;
the verification module is used for verifying the online notification message after the interface module receives the online notification message sent by the service forwarding equipment;
the sending module is used for sending the communication channel configuration message to the service forwarding equipment under the condition that the online notification message passes the verification so that the service forwarding equipment can verify the communication channel configuration message;
and the tunnel establishing module is used for establishing an extensible virtual local area network VXLAN tunnel with the service forwarding equipment after the receiving module receives the response message of successful verification of the communication channel configuration message sent by the service forwarding equipment.
In an embodiment, the sending module is further configured to send a verification result of the online notification message to the service forwarding device before sending the communication channel configuration message to the service forwarding device, so that the service forwarding device establishes the VXLAN tunnel only under the condition that the online notification message is successfully verified and the communication channel configuration message is successfully verified.
In one embodiment, the verification module verifies the VXLAN tunnel terminal IP address and the virtual machine MAC address table of the service forwarding device included in the online notification message, and determines that the online notification message passes the verification if the VXLAN tunnel terminal IP address and the virtual machine MAC address table of the service forwarding device side pass the verification.
In one embodiment, the communication channel configuration message includes the VXLAN tunnel terminal IP address and the virtual machine MAC address table of the service controller.
In one embodiment, the message is an Echo message in the OpenFlow protocol.
According to another aspect of the present invention, there is provided a service controller for establishing a VXLAN tunnel, comprising:
a memory to store instructions;
a processor coupled to the memory, the processor configured to perform a method according to any of the embodiments described above based on instructions stored in the memory.
According to another aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, which when executed by a processor, implement a method as described in any of the above embodiments.
According to another aspect of the present invention, there is provided a system for establishing a VXLAN tunnel, comprising:
a traffic controller as in any preceding embodiment;
and the service forwarding equipment is used for sending an online notification message to the service controller, verifying the communication channel configuration message sent by the service controller and sending the verification result of the communication channel configuration message to the service controller.
Optionally, the service forwarding device is configured to establish an extensible virtual local area network VXLAN tunnel with the service controller under the condition that the online notification message is successfully verified and the communication channel configuration message is successfully verified.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of an embodiment of a method for establishing a VXLAN tunnel according to the present invention.
Fig. 2 is a schematic diagram of an embodiment of a service controller for establishing a VXLAN tunnel according to the present invention.
Fig. 3 is a schematic diagram of another embodiment of a service controller for establishing a VXLAN tunnel according to the present invention.
Fig. 4 is a schematic diagram of one embodiment of a system for establishing VXLAN tunnels of the present invention.
Fig. 5 is a schematic diagram of one embodiment of establishing a VXLAN tunnel in accordance with the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Fig. 1 is a schematic diagram of an embodiment of a method for establishing a VXLAN tunnel according to the present invention. Alternatively, the method steps of this embodiment may be performed by the service controller. Wherein:
Wherein, verifying the online notification message may include:
and verifying the IP address of the VXLAN Tunnel terminal of the service forwarding equipment and the MAC address table of the virtual machine included in the online notification message, and if the IP address of the VXLAN Tunnel terminal (VTEP for short) on the service forwarding equipment side and the MAC address table of the virtual machine pass the verification, determining that the online notification message passes the verification.
Alternatively, the online notification message may be an Echo message in the OpenFlow protocol. To implement the present invention, the following fields need to be extended in the Echo message, as shown in table 1.
TABLE 1
Optionally, after the online notification message is verified, the verification result of the online notification message is sent to the service forwarding device as an online notification response message. Alternatively, the response message may be an Echo response message. The corresponding extensions are shown in table 2.
TABLE 2
And 102, after the on-line notification message passes the verification, sending a communication channel configuration message to the service forwarding device so that the service forwarding device verifies the communication channel configuration message.
The communication channel configuration message may include the VXLAN tunnel terminal IP address of the service controller and the virtual machine MAC address table, so that the service forwarding device performs corresponding verification.
Alternatively, the communication channel configuration message may be an Echo message in the OpenFlow protocol. In the present invention, the following fields need to be extended in the Echo message, as shown in table 3.
TABLE 3
Alternatively, the response message may be an Echo response message. The corresponding extensions are shown in table 4.
TABLE 4
Based on the method for establishing the VXLAN tunnel provided by the above embodiment of the present invention, the VXLAN tunnel is established by utilizing the direct interaction between the service forwarding device and the service controller, so that the two-layer interaction of the related information between the service controller and the service forwarding device can be directly performed through the VXLAN tunnel.
Fig. 2 is a schematic diagram of an embodiment of a service controller for establishing a VXLAN tunnel according to the present invention. As shown in fig. 2, the traffic controller may include a receiving module 21, an authenticating module 22, a transmitting module 23, and a tunnel establishing module 24. Wherein:
the receiving module 21 is configured to receive an online notification message sent by a service forwarding device.
The verification module 22 is configured to verify the online notification message after the interface module receives the online notification message sent by the service forwarding device.
Optionally, the verification module 22 verifies the VXLAN tunnel terminal IP address and the virtual machine MAC address table of the service forwarding device included in the online notification message, and if the VXLAN tunnel terminal IP address and the virtual machine MAC address table of the service forwarding device side pass the verification, it is determined that the online notification message passes the verification.
The sending module 23 is configured to send a communication channel configuration message to the service forwarding device when the online notification message passes the verification, so that the service forwarding device verifies the communication channel configuration message.
Optionally, the communication channel configuration message includes a VXLAN tunnel terminal IP address of the service controller and a virtual machine MAC address table.
In addition, the sending module 23 is further configured to send a verification result of the online notification message to the service forwarding device before sending the communication channel configuration message to the service forwarding device, so that the service forwarding device establishes the VXLAN tunnel only under the condition that the online notification message is successfully verified and the communication channel configuration message is successfully verified.
The tunnel establishing module 24 is configured to establish an extensible virtual local area network VXLAN tunnel with the service forwarding device after the receiving module receives the response message that the communication channel configuration message sent by the service forwarding device succeeds in verification.
Optionally, the message may be an Echo message in the OpenFlow protocol. In order to implement the present invention, there is a need to correspondingly extend Echo messages, which are shown in tables 1 to 4 above.
Based on the service controller for establishing the VXLAN tunnel provided by the above embodiment of the present invention, the VXLAN tunnel is established by using direct interaction between the service forwarding device and the service controller, so that a large two-layer interaction of related information between the service controller and the service forwarding device can be directly performed through the VXLAN tunnel.
Fig. 3 is a schematic diagram of another embodiment of a service controller for establishing a VXLAN tunnel according to the present invention. As shown in fig. 3, the traffic controller includes a memory 31 and a processor 32. Wherein:
the memory 31 is used for storing instructions, the processor 32 is coupled to the memory 31, and the processor 32 is configured to execute the method according to any embodiment in fig. 1 based on the instructions stored in the memory.
As shown in fig. 3, the service controller further includes a communication interface 33 for information interaction with other devices. Meanwhile, the device also comprises a bus 34, and the processor 32, the communication interface 33 and the memory 31 are communicated with each other through the bus 34.
The memory 31 may comprise a high-speed RAM memory, and may also include a non-volatile memory (e.g., at least one disk memory). The memory 31 may also be a memory array. The storage 31 may also be partitioned and the blocks may be combined into virtual volumes according to certain rules.
Further, the processor 32 may be a central processing unit CPU, or may be an application Specific Integrated circuit ASIC (application Specific Integrated Circuit), or one or more Integrated circuits configured to implement embodiments of the present invention.
The invention also discloses a computer readable storage medium, wherein the computer readable storage medium stores computer instructions, and the instructions are executed by a processor to realize the method related to any embodiment in the figure 1.
Fig. 4 is a schematic diagram of one embodiment of a system for establishing VXLAN tunnels of the present invention. As shown in fig. 4, the system includes a traffic controller 41 and a traffic forwarding device 42. The service controller 41 is the service controller according to any one of fig. 2 or fig. 3.
The service forwarding device 42 is configured to send an online notification message to the service controller 41, and is further configured to verify a communication channel configuration message sent by the service controller 41, and send a verification result of the communication channel configuration message to the service controller 41.
Optionally, the service forwarding device 42 is configured to establish an extensible virtual local area network VXLAN tunnel with the service controller 41 if the online notification message is successfully authenticated and the communication channel configuration message is successfully authenticated.
The present invention is described below by using a specific example, as shown in fig. 5, a service forwarding device interacts with a service controller by using Echo messages in the OpenFlow protocol.
Step 501, the service forwarding device sends an online notification message to the service controller, where the online notification message includes the VXLAN tunnel terminal IP address and the virtual machine MAC address table of the service forwarding device.
Step 502, the service controller verifies the VXLAN tunnel terminal IP address and the virtual machine MAC address table of the service forwarding device in the online notification message.
Step 503, the service controller sends an online response message to the service forwarding device.
Step 504, after the on-line notification message is successfully verified, the service controller sends a communication channel configuration message to the service forwarding device.
Wherein, the communication channel configuration message includes VXLAN tunnel terminal IP address of the service controller and the MAC address table of the virtual machine.
Step 505, the service forwarding device verifies the communication channel configuration message.
Step 506, the service forwarding device sends a communication channel configuration response to the service controller.
Step 507, under the condition that the communication channel configuration verification is successful, establishing a VXLAN tunnel between the service controller and the service forwarding equipment.
Accordingly, the VXLAN tunnel can be used for corresponding service processing.
By implementing the present invention, the following advantageous effects can be obtained.
1. The Echo message in OpenFlow is expanded, the establishment of a transfer control communication channel VXLAN tunnel is realized, and the automatic configuration capability of the VXLAN tunnel is improved.
2. The interaction of information (such as PPPoE dial-up protocol messages) is carried out through the VXLAN tunnel, the capability of traversing a three-layer network group between the control equipment and the forwarding equipment can be supported, and a feasible scheme can be provided for the pooling deployment of the processing capability of equipment such as broadband services and the like.
The invention can be applied to scenes such as broadband metropolitan area network virtualization networking and the like, can realize the complete separation of broadband service processing and broadband service forwarding, realizes software and hardware decoupling and function abstraction, and provides a feasible scheme for centralized and economical deployment of broadband service processing capacity.
The scheme provided by the patent is beneficial to realizing flexible sharing of broadband access server resources, and meets the requirements of centralized management and control, automatic elastic expansion and contraction capacity, fault isolation and self-healing of broadband services, and rapid development and deployment of new services.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The description of the present invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (8)
1. A method for establishing a VXLAN tunnel, comprising:
after receiving an online notification message sent by service forwarding equipment, verifying the online notification message;
after the online notification message passes the verification, sending a communication channel configuration message to the service forwarding device, wherein the communication channel configuration message comprises a VXLAN tunnel terminal IP address of the service controller and a virtual machine MAC address table, so that the service forwarding device verifies the communication channel configuration message;
after receiving a response message of successful verification of the communication channel configuration message sent by the service forwarding device, establishing an extensible virtual local area network (VXLAN) tunnel with the service forwarding device, wherein the online notification message, the communication channel configuration message and the response message are Echo messages in an open flow OpenFlow protocol;
wherein verifying the online notification message comprises:
verifying the VXLAN tunnel terminal IP address and the virtual machine MAC address table of the service forwarding equipment included in the online notification message;
and if the IP address of the VXLAN tunnel terminal at the service forwarding equipment side and the MAC address table of the virtual machine pass the verification, determining that the online notification message passes the verification.
2. The method of claim 1,
before sending the communication channel configuration message to the service forwarding device, the method further includes:
and sending the verification result of the online notification message to the service forwarding equipment, so that the service forwarding equipment establishes the VXLAN tunnel only under the condition that the online notification message is successfully verified and the communication channel configuration message is successfully verified.
3. A service controller for establishing a VXLAN tunnel, comprising:
a receiving module, configured to receive an online notification message sent by a service forwarding device;
the verification module is used for verifying the online notification message after the interface module receives the online notification message sent by the service forwarding equipment, wherein the online notification message comprises a VXLAN tunnel terminal IP address and a virtual machine MAC address table of the service forwarding equipment, if the VXLAN tunnel terminal IP address and the virtual machine MAC address table of the service forwarding equipment pass the verification, the online notification message is determined to pass the verification, and the communication channel configuration message comprises the VXLAN tunnel terminal IP address and the virtual machine MAC address table of the service controller;
a sending module, configured to send a communication channel configuration message to the service forwarding device when the online notification message passes verification, so that the service forwarding device verifies the communication channel configuration message;
and a tunnel establishing module, configured to establish an extensible virtual local area network VXLAN tunnel with the service forwarding device after the receiving module receives a response message that the communication channel configuration message sent by the service forwarding device succeeds in verification, where the online notification message, the communication channel configuration message, and the response message are Echo messages in an OpenFlow protocol.
4. The traffic controller of claim 3,
the sending module is further configured to send a verification result of the online notification message to the service forwarding device before sending the communication channel configuration message to the service forwarding device, so that the service forwarding device establishes the VXLAN tunnel only under the condition that the online notification message is successfully verified and the communication channel configuration message is successfully verified.
5. A service controller for establishing a VXLAN tunnel, comprising:
a memory to store instructions;
a processor coupled to the memory, the processor configured to perform implementing the method of any of claims 1-2 based on instructions stored by the memory.
6. A computer-readable storage medium storing computer instructions which, when executed by a processor, implement the method of any one of claims 1-2.
7. A system for establishing a VXLAN tunnel, comprising:
a traffic controller according to any of claims 3-5;
and the service forwarding equipment is used for sending an online notification message to the service controller, verifying the communication channel configuration message sent by the service controller and sending the verification result of the communication channel configuration message to the service controller.
8. The system of claim 7,
and the service forwarding equipment is used for establishing an extensible virtual local area network VXLAN tunnel with the service controller under the condition that the online notification message is successfully verified and the communication channel configuration message is successfully verified.
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| CN112383425B (en) * | 2020-11-11 | 2022-07-08 | 迈普通信技术股份有限公司 | VXLAN network-based terminal discovery system and method |
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| CN106506457A (en) * | 2016-10-12 | 2017-03-15 | 中国联合网络通信集团有限公司 | A kind of method and system of accessing terminal to network |
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| US9898317B2 (en) * | 2012-06-06 | 2018-02-20 | Juniper Networks, Inc. | Physical path determination for virtual network packet flows |
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| CN103428771A (en) * | 2013-09-05 | 2013-12-04 | 迈普通信技术股份有限公司 | Communication method, software defined network SDN switch and communication system |
| CN105812259A (en) * | 2014-12-31 | 2016-07-27 | 杭州华三通信技术有限公司 | Packet forwarding method and device |
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