CN110602268A - Tunnel port allocation method and device, electronic equipment and storage medium - Google Patents
Tunnel port allocation method and device, electronic equipment and storage medium Download PDFInfo
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- CN110602268A CN110602268A CN201910899844.7A CN201910899844A CN110602268A CN 110602268 A CN110602268 A CN 110602268A CN 201910899844 A CN201910899844 A CN 201910899844A CN 110602268 A CN110602268 A CN 110602268A
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- tunnel portal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5007—Internet protocol [IP] addresses
- H04L61/5014—Internet protocol [IP] addresses using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
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Abstract
The application discloses a tunnel portal allocation method, a tunnel portal allocation device, an electronic device and a computer readable storage medium, wherein the method comprises the following steps: when receiving an allocation command, allocating a tunnel portal for each device; the equipment corresponds to the tunnel portal one by one; constructing a target corresponding relation according to the corresponding relation between the equipment and the tunnel portal; and when the server or the equipment is restarted, allocating tunnel ports to the equipment according to the target corresponding relation. According to the tunnel portal allocation method, when the tunnel portal is allocated for the first time, a dynamic allocation mode is adopted, and the corresponding relation between the equipment and the tunnel portal is established. In subsequent allocation, tunnel ports are always allocated using the target correspondence, i.e., the result of the first allocation. Therefore, the tunnel port allocation method provided by the application ensures that the equipment is allocated to the same tunnel port during each allocation, and ensures the stability of the network.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for tunnel portal allocation, an electronic device, and a computer-readable storage medium.
Background
In the field of smart power grids, a first-level DHCP (Dynamic Host Configuration protocol) server deployed on a 6LowPan network and Internet gateway equipment allocates addresses or address prefixes and network parameters for root nodes of the 6LowPan network, and a second-level DHCP server on the root nodes allocates addresses and configures network parameters for electric meters in the network.
A large number of nodes exist in the intelligent power grid network, and the addresses of the nodes can be distributed through a multi-stage DHCP server. When the first-level DHCP server or the tunnel portal management module is restarted, a large-scale network address change may be caused to cause network oscillation.
Therefore, how to avoid network oscillation when the primary DHCP server or the tunnel portal management module is reset is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The present application aims to provide a tunnel portal allocation method, a tunnel portal allocation device, an electronic device, and a computer-readable storage medium, which avoid network oscillation when a first-level DHCP server or a tunnel portal management module is reset.
In order to achieve the above object, the present application provides a tunnel portal allocation method, including:
when receiving an allocation command, allocating a tunnel portal for each device; the equipment corresponds to the tunnel portal one by one;
constructing a target corresponding relation according to the corresponding relation between the equipment and the tunnel portal;
and when the server or the equipment is restarted, allocating tunnel ports to the equipment according to the target corresponding relation.
If the server is a primary DHCP server, the equipment is a secondary DHCP server;
wherein, assign the tunnel portal for each equipment, include:
randomly coding each device and each idle tunnel portal according to a preset coding rule to obtain a device identifier of each device and a tunnel portal identifier of each idle tunnel portal;
allocating a target tunnel portal for the target equipment; wherein the device identification of the target device is the same as the tunnel portal identification of the target tunnel portal.
Wherein, assign the tunnel portal for each equipment, include:
judging whether equipment to be allocated of unallocated tunnel portals exists or not;
if so, randomly coding all the equipment to be distributed and all the tunnel mouths according to a preset coding rule to obtain an equipment identifier of each equipment to be distributed and a tunnel mouth identifier of each tunnel mouth;
when the target tunnel portal is free, allocating the target tunnel portal to target equipment, and re-entering the step of judging whether equipment to be allocated without the allocated tunnel portal exists; wherein the tunnel portal identification of the target tunnel portal is the same as the device identification of the target device.
To achieve the above object, the present application provides a tunnel portal allocation apparatus, including:
a first allocation module for allocating a tunnel portal to each device upon receiving an allocation command; the equipment corresponds to the tunnel portal one by one;
the building module is used for building a target corresponding relation according to the corresponding relation between the equipment and the tunnel portal;
and the second allocating module is used for allocating tunnel ports to the equipment according to the target corresponding relation when the server or the equipment is restarted.
If the server is a primary DHCP server, the equipment is a secondary DHCP server;
and if the server is the secondary DHCP server, the equipment is a terminal.
Wherein the first distribution module comprises:
a first encoding unit, configured to, when an allocation command is received, perform random encoding on each device and each idle tunnel portal according to a preset encoding rule to obtain a device identifier of each device and a tunnel portal identifier of each idle tunnel portal;
a first allocation unit, configured to allocate a target tunnel portal to a target device; wherein the device identification of the target device is the same as the tunnel portal identification of the target tunnel portal.
Wherein the first distribution module comprises:
the judging unit is used for judging whether equipment to be allocated of unallocated tunnel mouths exists or not; if yes, starting the working process of the second coding unit;
the second coding unit is configured to perform random coding on all the devices to be allocated and all the tunnel portals according to a preset coding rule to obtain a device identifier of each device to be allocated and a tunnel portal identifier of each tunnel portal;
a second allocating unit, configured to allocate, when a target tunnel portal is idle, the target tunnel portal to a target device, and re-enter the step of determining whether there is a device to be allocated without a tunnel portal; wherein the tunnel portal identification of the target tunnel portal is the same as the device identification of the target device.
To achieve the above object, the present application provides an electronic device including:
a memory for storing a computer program;
and a processor, configured to implement the steps of the tunnel portal allocation method when executing the computer program.
To achieve the above object, the present application provides a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the steps of the tunnel portal allocation method as described above.
According to the above scheme, the tunnel portal allocation method provided by the present application includes: when receiving an allocation command, allocating a tunnel portal for each device; the equipment corresponds to the tunnel portal one by one; constructing a target corresponding relation according to the corresponding relation between the equipment and the tunnel portal; and when the server or the equipment is restarted, allocating tunnel ports to the equipment according to the target corresponding relation.
According to the tunnel portal allocation method, when the tunnel portal is allocated for the first time, a dynamic allocation mode is adopted, and the corresponding relation between the equipment and the tunnel portal is established. In subsequent allocation, tunnel ports are always allocated using the target correspondence, i.e., the result of the first allocation. Therefore, the tunnel port allocation method provided by the application ensures that the equipment is allocated to the same tunnel port during each allocation, and ensures the stability of the network. The application also discloses a tunnel portal allocation device, an electronic device and a computer readable storage medium, which can also achieve the technical effects.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
In order to more clearly illustrate the embodiments of the present application 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, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts. The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a flow chart illustrating a tunnel port assignment method in accordance with an exemplary embodiment;
FIG. 2 is a block diagram of a network;
FIG. 3 is a flow chart illustrating another tunnel port assignment methodology in accordance with an exemplary embodiment;
fig. 4 is a block diagram illustrating a tunnel portal assignment apparatus according to an exemplary embodiment;
FIG. 5 is a block diagram illustrating an electronic device in accordance with an exemplary embodiment.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. 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 application.
The embodiment of the application discloses a tunnel portal allocation method, which avoids network oscillation when a primary DHCP server or a tunnel portal management module is reset.
Referring to fig. 1, a flowchart of a tunnel portal allocation method according to an exemplary embodiment is shown, as shown in fig. 1, including:
s101: when receiving an allocation command, allocating a tunnel portal for each device; the equipment corresponds to the tunnel portal one by one;
the execution main body of this embodiment is a server for allocating a tunnel portal, for example, the primary DHCP server may allocate a tunnel portal for the secondary DHCP server, that is, the server in this embodiment is the primary DHCP server, and the device is the secondary DHCP server; the secondary DHCP server may also allocate a tunnel port to the device, that is, the server in this embodiment is the secondary DHCP server, and the device is the terminal.
In this step, when the server allocates a tunnel portal to the device for the first time, a dynamic allocation manner is adopted. For example, in the networking shown in fig. 2, a point-to-point IPV6-IPV6 tunnel is established between the wireless access node and the secondary border router BR (BR1, BR2, …, BRn), and the establishment of the tunnel is triggered by a DHCP request. (BR1, BR2, …, BRn) there is actually a physical link with the wireless access node through the BR. The BR allocates IPV6 addresses for the BR1, the BR2, the BR … and the BRn, the BR1, the BR2, the BR … and the BRn use the IPV6 addresses as source addresses of tunnel outer layer addresses, the address of the eth0 on the wireless access node is used as a tunnel outer layer destination address to initiate communication with the wireless access node, and address pool configuration of a DHCP server is applied. Each tunnel portal (TUN) is created in advance when the device is started, the TUN address is set to an invalid value when being created, when receiving a DHCP request, the DHCP request of the IPV6-IPV6 can be identified through netfilter, a tunnel management module (tunmgr) is informed to select an idle tunnel portal, and the destination address of the tunnel is changed into the outer layer source address of the IPV6-IPV6 message. Subsequently, the IPV6IPV6 message is transmitted and received through the tunnel portal.
As a possible implementation, the step may include: judging whether equipment to be allocated of unallocated tunnel portals exists or not; if so, randomly coding all the equipment to be distributed and all the tunnel mouths according to a preset coding rule to obtain an equipment identifier of each equipment to be distributed and a tunnel mouth identifier of each tunnel mouth; when the target tunnel portal is free, allocating the target tunnel portal to target equipment, and re-entering the step of judging whether equipment to be allocated without the allocated tunnel portal exists; wherein the tunnel portal identification of the target tunnel portal is the same as the device identification of the target device. In a specific implementation, the preset coding rule is not limited, for example, the tunnel port identifier of each tunnel port may be 0, 1, 2, and the like, the device identifier of each device to be allocated may be 0, 1, 2, and the like, if the tunnel port identifier of the tunnel port identifier 0 is idle, the device is allocated to the device identifier 0, and if the tunnel port identifier of the tunnel port identifier 1 is not idle, the device identifier 1 is used as the device to be allocated, and the tunnel port allocation is performed again when waiting for the next coding.
As another possible embodiment, the step may include: randomly coding each device and each idle tunnel portal according to a preset coding rule to obtain a device identifier of each device and a tunnel portal identifier of each idle tunnel portal; allocating a target tunnel portal for the target equipment; wherein the device identification of the target device is the same as the tunnel portal identification of the target tunnel portal. In a specific implementation, in order to prevent multiple coding of a tunnel portal, only idle tunnel portals may be coded, for example, the tunnel portal identifier of each idle tunnel portal may be 0, 1, 2, and the like, and the device identifier of each device to be allocated may be 0, 1, 2, and the like, then a tunnel portal with tunnel portal identifier 0 is allocated to a device with device identifier 0, a tunnel portal with tunnel portal identifier 1 is allocated to a device with device identifier 1, and a tunnel portal with tunnel portal identifier 2 is allocated to a device with device identifier 2.
S102: constructing a target corresponding relation according to the corresponding relation between the equipment and the tunnel portal;
in this step, based on the tunnel portal assignment in the previous step, a correspondence between each device and a tunnel portal, that is, a target correspondence, is established and stored in the server, so that assignment is performed according to the target correspondence in the next tunnel portal assignment.
S103: and when the server or the equipment is restarted, allocating tunnel ports to the equipment according to the target corresponding relation.
In this step, when the server or the device governed by the server is restarted, tunnel portal allocation is performed according to the target correspondence, so that it is ensured that the devices are allocated to the same tunnel portal every time allocation is performed, and the stability of the network is ensured.
The tunnel portal allocation method provided by the embodiment of the application adopts a dynamic allocation mode when the tunnel portal is allocated for the first time by the equipment, and establishes the corresponding relation between the equipment and the tunnel portal. In subsequent allocation, tunnel ports are always allocated using the target correspondence, i.e., the result of the first allocation. Therefore, the tunnel port allocation method provided by the application ensures that the equipment is allocated to the same tunnel port during each allocation, and ensures the stability of the network.
The embodiment of the application discloses a tunnel portal allocation method, and compared with the previous embodiment, the embodiment further describes and optimizes the technical scheme. Specifically, the method comprises the following steps:
referring to fig. 3, a flowchart of another tunnel portal allocation method according to an exemplary embodiment is shown, as shown in fig. 3, including:
s201: when an allocation command is received, randomly coding each secondary DHCP server and each idle tunnel portal according to a preset coding rule to obtain a server identifier of each secondary DHCP server and a tunnel portal identifier of each idle tunnel portal;
in this embodiment, the primary DHCP server allocates a tunnel port to each secondary DHCP server.
S202: allocating a target tunnel portal for a target secondary DHCP server; the server identification of the target secondary DHCP server is the same as the tunnel portal identification of the target tunnel portal;
s203: constructing a target corresponding relation according to the corresponding relation between the secondary DHCP server and the tunnel portal;
s204: and when the server or the secondary DHCP server is restarted, allocating a tunnel portal for the secondary DHCP server according to the target corresponding relation.
Therefore, the embodiment can ensure that the tunnel ports allocated by the secondary DHCP servers are not changed, namely, the obtained addresses or address prefixes are not changed all the time, and the stability of the network is ensured.
A tunnel portal allocation apparatus provided in an embodiment of the present application is described below, and a tunnel portal allocation apparatus described below and a tunnel portal allocation method described above may be referred to each other.
Referring to fig. 4, a block diagram of a tunnel portal allocation apparatus according to an exemplary embodiment is shown, as shown in fig. 4, including:
a first allocating module 401, configured to allocate a tunnel portal for each device when an allocation command is received; the equipment corresponds to the tunnel portal one by one;
a building module 402, configured to build a target correspondence according to a correspondence between the device and the tunnel portal;
a second allocating module 403, configured to allocate a tunnel portal to the device according to the target correspondence when the server or the device is restarted.
The tunnel portal allocation device provided by the embodiment of the application adopts a dynamic allocation mode when a tunnel portal is allocated for equipment for the first time, and establishes a corresponding relation between the equipment and the tunnel portal. In subsequent allocation, tunnel ports are always allocated using the target correspondence, i.e., the result of the first allocation. Therefore, the tunnel port allocation method provided by the application ensures that the equipment is allocated to the same tunnel port during each allocation, and ensures the stability of the network.
On the basis of the above embodiment, as a preferred implementation, if the server is a primary DHCP server, the device is a secondary DHCP server;
and if the server is the secondary DHCP server, the equipment is a terminal.
On the basis of the above embodiment, as a preferred implementation, the first distribution module 401 includes:
a first encoding unit, configured to, when an allocation command is received, perform random encoding on each device and each idle tunnel portal according to a preset encoding rule to obtain a device identifier of each device and a tunnel portal identifier of each idle tunnel portal;
a first allocation unit, configured to allocate a target tunnel portal to a target device; wherein the device identification of the target device is the same as the tunnel portal identification of the target tunnel portal.
On the basis of the above embodiment, as a preferred implementation, the first distribution module 401 includes:
the judging unit is used for judging whether equipment to be allocated of unallocated tunnel mouths exists or not; if yes, starting the working process of the second coding unit;
the second coding unit is configured to perform random coding on all the devices to be allocated and all the tunnel portals according to a preset coding rule to obtain a device identifier of each device to be allocated and a tunnel portal identifier of each tunnel portal;
a second allocating unit, configured to allocate, when a target tunnel portal is idle, the target tunnel portal to a target device, and re-enter the step of determining whether there is a device to be allocated without a tunnel portal; wherein the tunnel portal identification of the target tunnel portal is the same as the device identification of the target device.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
The present application further provides an electronic device, and referring to fig. 5, a structure diagram of an electronic device 500 provided in an embodiment of the present application may include a processor 11 and a memory 12, as shown in fig. 5. The electronic device 500 may also include one or more of a multimedia component 13, an input/output (I/O) interface 14, and a communication component 15.
The processor 11 is configured to control the overall operation of the electronic device 500, so as to complete all or part of the steps in the tunnel portal allocation method. The memory 12 is used to store various types of data to support operation at the electronic device 500, such as instructions for any application or method operating on the electronic device 500, and application-related data, such as contact data, messaging, pictures, audio, video, and so forth. The Memory 12 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk or optical disk. The multimedia component 13 may include a screen and an audio component. Wherein the screen may be, for example, a touch screen and the audio component is used for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may further be stored in the memory 12 or transmitted via the communication component 15. The audio assembly also includes at least one speaker for outputting audio signals. The I/O interface 14 provides an interface between the processor 11 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 15 is used for wired or wireless communication between the electronic device 500 and other devices. Wireless communication, such as Wi-Fi, bluetooth, Near Field Communication (NFC), 2G, 3G or 4G, or a combination of one or more of them, so that the corresponding communication component 15 may include: Wi-Fi module, bluetooth module, NFC module.
In an exemplary embodiment, the electronic Device 500 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for performing the above-described tunnel portal allocation method.
In another exemplary embodiment, a computer readable storage medium including program instructions, which when executed by a processor, implement the steps of the tunnel portal allocation method described above is also provided. For example, the computer readable storage medium may be the above-mentioned memory 12 comprising program instructions executable by the processor 11 of the electronic device 500 to perform the above-mentioned tunnel portal allocation method.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A tunnel portal allocation method is applied to a server and comprises the following steps:
when receiving an allocation command, allocating a tunnel portal for each device; the equipment corresponds to the tunnel portal one by one;
constructing a target corresponding relation according to the corresponding relation between the equipment and the tunnel portal;
and when the server or the equipment is restarted, allocating tunnel ports to the equipment according to the target corresponding relation.
2. The tunnel portal allocation method according to claim 1, wherein if said server is a primary DHCP server, said device is a secondary DHCP server;
and if the server is the secondary DHCP server, the equipment is a terminal.
3. The tunnel portal allocation method according to claim 1, wherein said allocating a tunnel portal to each device comprises:
randomly coding each device and each idle tunnel portal according to a preset coding rule to obtain a device identifier of each device and a tunnel portal identifier of each idle tunnel portal;
allocating a target tunnel portal for the target equipment; wherein the device identification of the target device is the same as the tunnel portal identification of the target tunnel portal.
4. The tunnel portal allocation method according to claim 1, wherein said allocating a tunnel portal to each device comprises:
judging whether equipment to be allocated of unallocated tunnel portals exists or not;
if so, randomly coding all the equipment to be distributed and all the tunnel mouths according to a preset coding rule to obtain an equipment identifier of each equipment to be distributed and a tunnel mouth identifier of each tunnel mouth;
when the target tunnel portal is free, allocating the target tunnel portal to target equipment, and re-entering the step of judging whether equipment to be allocated without the allocated tunnel portal exists; wherein the tunnel portal identification of the target tunnel portal is the same as the device identification of the target device.
5. A tunnel portal allocation device is applied to a server and comprises the following components:
a first allocation module for allocating a tunnel portal to each device upon receiving an allocation command; the equipment corresponds to the tunnel portal one by one;
the building module is used for building a target corresponding relation according to the corresponding relation between the equipment and the tunnel portal;
and the second allocating module is used for allocating tunnel ports to the equipment according to the target corresponding relation when the server or the equipment is restarted.
6. The tunnel portal allocation apparatus according to claim 5, wherein if said server is a primary DHCP server, said device is a secondary DHCP server;
and if the server is the secondary DHCP server, the equipment is a terminal.
7. The tunnel portal allocation apparatus according to claim 5, wherein said first allocation module comprises:
a first encoding unit, configured to, when an allocation command is received, perform random encoding on each device and each idle tunnel portal according to a preset encoding rule to obtain a device identifier of each device and a tunnel portal identifier of each idle tunnel portal;
a first allocation unit, configured to allocate a target tunnel portal to a target device; wherein the device identification of the target device is the same as the tunnel portal identification of the target tunnel portal.
8. The tunnel portal allocation apparatus according to claim 5, wherein said first allocation module comprises:
the judging unit is used for judging whether equipment to be allocated of unallocated tunnel mouths exists or not; if yes, starting the working process of the second coding unit;
the second coding unit is configured to perform random coding on all the devices to be allocated and all the tunnel portals according to a preset coding rule to obtain a device identifier of each device to be allocated and a tunnel portal identifier of each tunnel portal;
a second allocating unit, configured to allocate, when a target tunnel portal is idle, the target tunnel portal to a target device, and re-enter the step of determining whether there is a device to be allocated without a tunnel portal; wherein the tunnel portal identification of the target tunnel portal is the same as the device identification of the target device.
9. An electronic device, comprising:
a memory for storing a computer program;
processor for implementing the steps of the tunnel portal allocation method according to any of claims 1 to 4 when executing said computer program.
10. A computer-readable storage medium, having a computer program stored thereon, which, when being executed by a processor, implements the steps of the tunnel portal allocation method according to any one of claims 1 to 4.
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